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Preliminary Integrated Geologic Map Databases for the United States: Connecticut, Maine, Massachusetts, New Hampshire, New Jersey, Rhode Island, Vermont

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Title:: Preliminary Integrated Geologic Map Databases for the United States: Connecticut, Maine, Massachusetts, New Hampshire, New Jersey, Rhode Island, Vermont
Abstract:: These metadata are specifically for the State of New Hampshire, one state in the national compilation of state geologic map databases. The digital geologic state map data of New Hampshire was prepared by the University of New Hampshire and updated in 2006 by the NHGS in cooperation with the USGS. Subsequent editing of the spatial data by the USGS was limited to fitting a standardized state boundary to the data, standardizing the arc coding, reprojecting the data, and minor edits of arc or polygon attributes to conform with the paper map. This open-file report is one of several that present the preliminary results of the USGS Mineral Resources Program activity to compile a national-scale geologic map database to support national and regional level projects, including mineral resource and geoenvironmental assessments. The only comprehensive sources of regional- and national-scale geologic maps are state geologic maps with scales ranging from 1:100,000 to 1:1,000,000. Digital versions of these state maps form the core of what is presented here. Because no adequate geologic map exists for the state of Alaska, it is being compiled in regional blocks that also form part of this national database. It is expected that this series will completed by approximately the end of 2007. These maps and databases are being released in blocks of states or, in the case of Alaska, as compiled blocks of 1:250,000-scale quadrangles as chapters in this series. For Alaska, formal maps as well as databases are being published here, whereas for the conterminous U.S. only state databases and preview graphics are presented, because published maps for most states already exist. For Alaska these regional compilations will form the base for compiling a new geologic map of the state. As documented in CONUSdocumentationNENJ.pdf, standards for the conterminous U.S. are somewhat different than those for Alaska and Hawaii.
Supplemental_Information:: This database consists of up to five major Arc/Info GIS datasets for each state; - one: geologic map with formations, - two: faults (where present), - three: dikes (where present), - four: miscellaneous line features (where present), - five: miscellaneous point features (where present).

How should this data set be cited?
Nicholson, Suzanne W. , Dicken, Connie L. , Horton, John D. , Foose, Michael P. , Mueller, Julia A.L. , and Hon, Rudi, 2006, Preliminary Integrated Geologic Map Databases for the United States: Connecticut, Maine, Massachusetts, New Hampshire, New Jersey, Rhode Island, Vermont: U.S. Geological Survey Open-File Report 2006-1272, U.S. Geological Survey, Reston, VA.
Online Links:
- <http://pubs.usgs.gov/of/2006/1272/>
What geographic area does the data set cover?

West_Bounding_Coordinate: -72.557731

East_Bounding_Coordinate: -70.542870

North_Bounding_Coordinate: 45.305375

South_Bounding_Coordinate: 42.697092
What does it look like?
Does the data set describe conditions during a particular time period?

Calendar_Date: 2006
Currentness_Reference: publication date
What is the general form of this data set?

Geospatial_Data_Presentation_Form: map
How does the data set represent geographic features?
1. How are geographic features stored in the data set?
  This is a Vector data set.
2. What coordinate system is used to represent geographic features?
  The map projection used is Lambert Conformal Conic.
  
  Projection parameters:
  
  Standard_Parallel: 33
  
  Standard_Parallel: 45
  
  Longitude_of_Central_Meridian: -100.0
  
  Latitude_of_Projection_Origin: 0
  
  False_Easting: 0.00000
  
  False_Northing: 0.00000
  
  Planar coordinates are encoded using coordinate pair
  Abscissae (x-coordinates) are specified to the nearest 0.01
  Ordinates (y-coordinates) are specified to the nearest 0.01
  Planar coordinates are specified in Meters
  
  The horizontal datum used is North American Datum of 1927.
  The ellipsoid used is Clarke 1866.
  The semi-major axis of the ellipsoid used is 6378206.4.
  The flattening of the ellipsoid used is 1/294.98.

How does the data set describe geographic features?

NHgeol.pat

Polygon attribute table for the New Hampshire geologic coverage. (Source: ESRI)

ORIG_LABEL

unmodified map unit symbol from source cover.

type: character width: 12 output width: 12 (Source: Doug Stoeser (USGS))

Value	Definition
-Ch	Hurricane Mountain Formation
-Cjb	Jim Pond Formation
D1b	Pink equigranular biotite granite
D1m	Two-mica granite of northern and southeastern New Hampshire
D2b	Porphyritic biotite granodiorite
D3Ab	Biotite tonalite
D3Bb	Biotite trondhjemite in Rumney quadrangle
D6	Biotite quartz diorite in northeastern New Hampshire
Db2b	Bethlehem Granodiorite
Dc1m	Concord Granite
Dc3Am	Two-mica tonalite
De9	Exeter Diorite
Dg	Gile Mountain Formation, undivided
Dgc	Gile Mountain Formation, Interbedded gray slate or phyllite and brown-weathering calcite-ankerite metasiltstone
Dgm	Gile Mountain Formation, Meetinghouse Slate Member
Dgv	Gile Mountain Formation, Mafic metavolcanic member
Di	Ironbound Mountain Formation, undivided
Dib	Ironbound Mountain Formation, Basaltic to andesitic member
Die	Ironbound Mountain Formation, Euxinic metashale member
Dif	Ironbound Mountain Formation, Felsic volcanic member
Dih	Ironbound Mountain Formation, Grits at Halls Stream in northern New Hampshire
Dir	Ironbound Mountain Formation, Metarhyolite and microgranite intrusions
Dk2x	Kinsman Granodiorite
Dl	Littleton Formation, undivided
Dlc	Littleton Formation, Calc-silicate rock
Dlcs	Littleton Formation, Metaconglomerate and quartzite
Dll	Littleton Formation, Lower unnamed member
Dlu	Littleton Formation, Upper unnamed member
Dlv	Littleton Formation, Volcanic lentils
Dlvb	Littleton Formation, Metabasaltic greenstone or amphibolite
Dlvs	Littleton Formation, Epiclastic metavolcanic sediments
Ds1-6	Spaulding Tonalite
Ds6-9B	Hypersthene-biotite quartz diorite and hornblende or actinolite diorite or gabbro
DS9	Metamorphosed gabbro, diorite, and intrusive basalt dikes
DSlr	Migmatitic rocks
Dw3A	Winnipesaukee Tonalite
J1-4l	Leucocratic granite to quartz syenite
J1a	Fine-grained granite
J1h	Hastingsite granite
J1hx	Granite porphyry
J1O	Nepheline-sodalite-hastingsite syenite
J1r	Mesoperthitic granite
J1x	Porphyritic granite
J4h	Hornblende or alkalic amphibole quartz syenite
J4hx	Porphyritic hornblende or alkalic amphibole quartz syenite.
J4x	Quartz syenite
J5	Hornblende-biotite quartz monzodiorite
J7h	Hornblende (or alkalic amphibole) syenite
J7x	Porphyritic syenite
J8	Augite monzodiorite
J9A	Diorite
J9Ah	Porphyritic hornblende diorite
J9B	Gabbro
Jc1b	Conway Granite
Jmv	Moat Volcanics
Jo1b	Mount Osceola Granite, Green biotite mesoperthitic granite
Jo1h	Mount Osceola Granite, Granite containing hornblende and, locally, hastingsite, ferrohedenbergite, or fayalite
K1a	Rhyolite and fine-grained granite
K1bx	Porphyritic biotite granite
K1r	Medium-grained mesoperthitic granite containing riebeckite and (or) hastingsite
K2	Biotite-hornblende granodiorite
K4x	Large mesoperthitic phenocrysts in a pink to gray quartz syenite porphyry of "Albany type"
K7C	Gray augite-hornblende-biotite monzonite
K9A	Hornblende diorite
K9AB	Augite-hornblende diorite and gabbro
K9B	Augite-hornblende-biotite gabbro
Kc1b	Mesoperthitic biotite granite
Kv	Basalt
MD1m	Two-mica granite
MD3B	Trondhjemite and abundant pegmatite
O-Cd	Dead River Formation, undivided
O-Cdp	Dead River Formation, Graded-bedded metapelite
O-Czl	Aziscohos Formation, Lower unnamed member
O-Czu	Aziscohos Formation, Upper unnamed member
Oal	Metavolcanic and metasedimentary rocks of the lower part of Ammonoosuc Volcanics, undivided
Oalb	Ammonoosuc Volcanics, Metabasalt
Oalf	Ammonoosuc Volcanics, Felsic metavolcanic rocks
Oalg	Ammonoosuc Volcanics, Volcaniclastic metagraywackes
Oali	Ammonoosuc Volcanics, White quartz-kyanite rock and silicate iron-formation
Oals	Ammonoosuc Volcanics, Metasedimentary rocks
Oalx	Ammonoosuc Volcanics, Bimodal volcanic rocks
Oaus	Ammonoosuc Volcanics, Metasedimentary rocks
Oaux	Ammonoosuc Volcanics, Bimodal volcanic rocks
Oc1b	Biotite granite
Oc3Ah	Hornblende-biotite tonalite
Oc3Ax	Porphyritic phase of hornblende-biotite tonalite
Oc9B	Gabbro and diabase
Oh1-2h	Hornblende granite to granodiorite
Oh2-9A	Tonalite, diorite, granodiorite, and granite
Oh2h	Hornblende granodiorite of Highlandcroft pluton
Oj3A	Tonalite
Oo1-3A	Granite, granodiorite, and tonalite
Oo1-3B	Granite, granodiorite, and trondhjemite
Oo1b	Biotite granite
Oo1bx	Porphyritic (alkalic feldspar) biotite granite
Oo1h	Hornblende-biotite granite
Oo2-3A	Granodiorite to tonalite
Oo2b	Biotite granodiorite
Oo2bx	Porphyritic biotite granodiorite in northern Jefferson dome in Milan quadrangle
Oo2h	Hornblende granodiorite
Oo3B	Trondhjemite
Oo3B-6	Trondhjemite and quartz diorite in northern Jefferson dome in Gorham quadrangle
Oo4-7h	Hornblende-biotite quartz syenite to syenite
Oo4bx	Porphyritic biotite quartz syenite in central Jefferson dome in Mt. Washington quadrangle
Oo4Ch	Hornblende quartz monzonite
Oo9B	Hornblende gabbro
Op	Partridge Formation, undivided
Opv	Partridge Formation, Interstratified metavolcanic rocks
Opvi	Partridge Formation, White quartz-kyanite rock
Oq	Quimby Formation
OZrb	Rye Complex, Breakfast Hill Granite of Novotny (1964).
OZrz	Rye Complex
P1m	Gray biotite granite
PM1m	Two-mica granite of the Sebago batholith and Effingham pluton of eastern New Hampshire
S1b	Biotite granite stock and dikes
Sa2x	Ayer Granodiorite
Sc	Clough Quartzite
Sf	Fitch Formation (Upper Silurian; Pridolian and Ludlovian)
Sfc	Fitch and Clough Formations, undivided
Sfr	Frontenac Formation, undivided
Sfrb	Frontenac Formation, Metabasalt interbeds
Sfrc	Frontenac Formation, Massive tan- or brown-weathering calcite-ankerite-muscovite granofels and interbedded gray metapelite
Sfrg	Frontenac Formation, Graded-bedded metagraywacke and subordinate gray phyllite
Sfrv	Frontenac Formation, Mixed volcanic and sedimentary facies
Sfrx	Frontenac Formation, Proximal bimodal volcanic facies
Sg	Greenvale Cove Formation
Sm	Madrid Formation
Smsf	Madrid and Smalls Falls Formations, undivided
Sn1x	Newburyport Complex
Sn2-3A	Newburyport Complex
SOb	Merrimack Group, Berwick Formation
SObc	Merrimack Group, Berwick Formation, Unnamed member
SObg	Merrimack Group, Berwick Formation, Gove Member
SOe	Merrimack Group, Eliot Formation
SOec	Merrimack Group, Eliot Formation, Calef Member
SOk	Merrimack Group, Kittery Formation
Sp	Perry Mountain Formation, undivided
Spr	Perry Mountain and Rangeley Formations, undivided
Spvs	Perry Mountain Formation, Sedimentary and subordinate distal felsic and mafic volcanic facies in Piermont allochthon
Spvx	Perry Mountain Formation, Volcanic facies in Piermont allochthon
Sr	Rangeley Formation, undivided
Src	Member C (uppermost) of the Rangeley Formation in Maine and northeastern and southwestern New Hampshire
Srl	Lower part of Rangeley Formation
Srlp	Rangeley Formation, Ribbon-banded calc-silicate of eastern New Hampshire
Sru	Upper part of Rangeley Formation
Srup	Rangeley Formation, Pink to green calc-silicate and purple biotite granofels
Srvf	Rangeley Formation, Felsic metavolcanic rocks
Ssf	Smalls Falls Formation, undivided
Ssfb	Smalls Falls Formation, Metabasalt member
Ssfc	Smalls Falls Formation, Metaconglomerate member
Ssff	Smalls Falls Formation, Felsic metavolcanic member
Ssfx	Smalls Falls Formation, Mixed metavolcanic rocks and metavolcanic sediments
water	Water
Zmz	Massabesic Gneiss Complex

SGMC_LABEL

orig_label + ;n where n= province number (n=0 if no province number)

type: character width: 16 output width: 16 (Source: Doug Stoeser (USGS))

Value	Definition
CAh;0	Hurricane Mountain Formation
CAjb;0	Jim Pond Formation
D1b;0	Pink equigranular biotite granite
D1m;0	Two-mica granite of northern and southeastern New Hampshire
D2b;0	Porphyritic biotite granodiorite
D3Ab;0	Biotite tonalite
D3Bb;0	Biotite trondhjemite in Rumney quadrangle
D6;0	Biotite quartz diorite in northeastern New Hampshire
Db2b;0	Bethlehem Granodiorite
Dc1m;0	Concord Granite
Dc3Am;0	Two-mica tonalite
De9;0	Exeter Diorite
Dg;0	Gile Mountain Formation, undivided
Dgc;0	Gile Mountain Formation, Interbedded gray slate or phyllite and brown-weathering calcite-ankerite metasiltstone
Dgm;0	Gile Mountain Formation, Meetinghouse Slate Member
Dgv;0	Gile Mountain Formation, Mafic metavolcanic member
Di;0	Ironbound Mountain Formation, undivided
Dib;0	Ironbound Mountain Formation, Basaltic to andesitic member
Die;0	Ironbound Mountain Formation, Euxinic metashale member
Dif;0	Ironbound Mountain Formation, Felsic volcanic member
Dih;0	Ironbound Mountain Formation, Grits at Halls Stream in northern New Hampshire
Dir;0	Ironbound Mountain Formation, Metarhyolite and microgranite intrusions
Dk2x;0	Kinsman Granodiorite
Dl;0	Littleton Formation, undivided
Dlc;0	Littleton Formation, Calc-silicate rock
Dlcs;0	Littleton Formation, Metaconglomerate and quartzite
Dll;0	Littleton Formation, Lower unnamed member
Dlu;0	Littleton Formation, Upper unnamed member
Dlv;0	Littleton Formation, Volcanic lentils
Dlvb;0	Littleton Formation, Metabasaltic greenstone or amphibolite
Dlvs;0	Littleton Formation, Epiclastic metavolcanic sediments
Ds1-6;0	Spaulding Tonalite
Ds6-9B;0	Hypersthene-biotite quartz diorite and hornblende or actinolite diorite or gabbro
DS9;0	Metamorphosed gabbro, diorite, and intrusive basalt dikes
DSlr;0	Migmatitic rocks
Dw3A;0	Winnipesaukee Tonalite
J1-4l;0	Leucocratic granite to quartz syenite
J1a;0	Fine-grained granite
J1h;0	Hastingsite granite
J1hx;0	Granite porphyry
J1O;0	Nepheline-sodalite-hastingsite syenite
J1r;0	Mesoperthitic granite
J1x;0	Porphyritic granite
J4h;0	Hornblende or alkalic amphibole quartz syenite
J4hx;0	Porphyritic hornblende or alkalic amphibole quartz syenite.
J4x;0	Quartz syenite
J5;0	Hornblende-biotite quartz monzodiorite
J7h;0	Hornblende (or alkalic amphibole) syenite
J7x;0	Porphyritic syenite
J8;0	Augite monzodiorite
J9A;0	Diorite
J9Ah;0	Porphyritic hornblende diorite
J9B;0	Gabbro
Jc1b;0	Conway Granite
Jmv;0	Moat Volcanics
Jo1b;0	Mount Osceola Granite, Green biotite mesoperthitic granite
Jo1h;0	Mount Osceola Granite, Granite containing hornblende and, locally, hastingsite, ferrohedenbergite, or fayalite
K1a;0	Rhyolite and fine-grained granite
K1bx;0	Porphyritic biotite granite
K1r;0	Medium-grained mesoperthitic granite containing riebeckite and (or) hastingsite
K2;0	Biotite-hornblende granodiorite
K4x;0	Large mesoperthitic phenocrysts in a pink to gray quartz syenite porphyry of "Albany type"
K7C;0	Gray augite-hornblende-biotite monzonite
K9A;0	Hornblende diorite
K9AB;0	Augite-hornblende diorite and gabbro
K9B;0	Augite-hornblende-biotite gabbro
Kc1b;0	Mesoperthitic biotite granite
Kv;0	Basalt
MD1m;0	Two-mica granite
MD3B;0	Trondhjemite and abundant pegmatite
Oal;0	Metavolcanic and metasedimentary rocks of the lower part of Ammonoosuc Volcanics, undivided
Oalb;0	Ammonoosuc Volcanics, Metabasalt
Oalf;0	Ammonoosuc Volcanics, Felsic metavolcanic rocks
Oalg;0	Ammonoosuc Volcanics, Volcaniclastic metagraywackes
Oali;0	Ammonoosuc Volcanics, White quartz-kyanite rock and silicate iron-formation
Oals;0	Ammonoosuc Volcanics, Metasedimentary rocks
Oalx;0	Ammonoosuc Volcanics, Bimodal volcanic rocks
Oaus;0	Ammonoosuc Volcanics, Metasedimentary rocks
Oaux;0	Ammonoosuc Volcanics, Bimodal volcanic rocks
Oc1b;0	Biotite granite
Oc3Ah;0	Hornblende-biotite tonalite
Oc3Ax;0	Porphyritic phase of hornblende-biotite tonalite
Oc9B;0	Gabbro and diabase
OCAd;0	Dead River Formation, undivided
OCAdp;0	Dead River Formation, Graded-bedded metapelite
OCAzl;0	Aziscohos Formation, Lower unnamed member
OCAzu;0	Aziscohos Formation, Upper unnamed member
Oh1-2h;0	Hornblende granite to granodiorite
Oh2-9A;0	Tonalite, diorite, granodiorite, and granite
Oh2h;0	Hornblende granodiorite of Highlandcroft pluton
Oj3A;0	Tonalite
Oo1-3A;0	Granite, granodiorite, and tonalite
Oo1-3B;0	Granite, granodiorite, and trondhjemite
Oo1b;0	Biotite granite
Oo1bx;0	Porphyritic (alkalic feldspar) biotite granite
Oo1h;0	Hornblende-biotite granite
Oo2-3A;0	Granodiorite to tonalite
Oo2b;0	Biotite granodiorite
Oo2bx;0	Porphyritic biotite granodiorite in northern Jefferson dome in Milan quadrangle
Oo2h;0	Hornblende granodiorite
Oo3B;0	Trondhjemite
Oo3B-6;0	Trondhjemite and quartz diorite in northern Jefferson dome in Gorham quadrangle
Oo4-7h;0	Hornblende-biotite quartz syenite to syenite
Oo4bx;0	Porphyritic biotite quartz syenite in central Jefferson dome in Mt. Washington quadrangle
Oo4Ch;0	Hornblende quartz monzonite
Oo9B;0	Hornblende gabbro
Op;0	Partridge Formation, undivided
Opv;0	Partridge Formation, Interstratified metavolcanic rocks
Opvi;0	Partridge Formation, White quartz-kyanite rock
Oq;0	Quimby Formation
OZrb;1	Rye Complex, Breakfast Hill Granite of Novotny (1964).
OZrz;0	Rye Complex
OZrz;1	Rye Complex
P1m;0	Gray biotite granite
PAM1m;0	Two-mica granite of the Sebago batholith and Effingham pluton of eastern New Hampshire
S1b;0	Biotite granite stock and dikes
Sa2x;0	Ayer Granodiorite
Sc;0	Clough Quartzite
Sf;0	Fitch Formation (Upper Silurian; Pridolian and Ludlovian)
Sfc;0	Fitch and Clough Formations, undivided
Sfr;0	Frontenac Formation, undivided
Sfrb;0	Frontenac Formation, Metabasalt interbeds
Sfrc;0	Frontenac Formation, Massive tan- or brown-weathering calcite-ankerite-muscovite granofels and interbedded gray metapelite
Sfrg;0	Frontenac Formation, Graded-bedded metagraywacke and subordinate gray phyllite
Sfrv;0	Frontenac Formation, Mixed volcanic and sedimentary facies
Sfrx;0	Frontenac Formation, Proximal bimodal volcanic facies
Sg;0	Greenvale Cove Formation
Sm;0	Madrid Formation
Smsf;0	Madrid and Smalls Falls Formations, undivided
Sn1x;0	Newburyport Complex
Sn2-3A;0	Newburyport Complex
SOb;1	Merrimack Group, Berwick Formation
SObc;1	Merrimack Group, Berwick Formation, Unnamed member
SObg;1	Merrimack Group, Berwick Formation, Gove Member
SOe;1	Merrimack Group, Eliot Formation
SOec;1	Merrimack Group, Eliot Formation, Calef Member
SOk;1	Merrimack Group, Kittery Formation
Sp;0	Perry Mountain Formation, undivided
Spr;0	Perry Mountain and Rangeley Formations, undivided
Spvs;0	Perry Mountain Formation, Sedimentary and subordinate distal felsic and mafic volcanic facies in Piermont allochthon
Spvx;0	Perry Mountain Formation, Volcanic facies in Piermont allochthon
Sr;0	Rangeley Formation, undivided
Src;0	Member C (uppermost) of the Rangeley Formation in Maine and northeastern and southwestern New Hampshire
Srl;0	Lower part of Rangeley Formation
Srlp;0	Rangeley Formation, Ribbon-banded calc-silicate of eastern New Hampshire
Sru;0	Upper part of Rangeley Formation
Srup;0	Rangeley Formation, Pink to green calc-silicate and purple biotite granofels
Srvf;0	Rangeley Formation, Felsic metavolcanic rocks
Ssf;0	Smalls Falls Formation, undivided
Ssfb;0	Smalls Falls Formation, Metabasalt member
Ssfc;0	Smalls Falls Formation, Metaconglomerate member
Ssff;0	Smalls Falls Formation, Felsic metavolcanic member
Ssfx;0	Smalls Falls Formation, Mixed metavolcanic rocks and metavolcanic sediments
water;0	Water
Zmz;0	Massabesic Gneiss Complex Enumerated_Domain:
Zmz;1	Massabesic Gneiss Complex Attribute:
NHCAh;0	Hurricane Mountain Formation
NHCAjb;0	Jim Pond Formation
NHD1b;0	Pink equigranular biotite granite
NHD1m;0	Two-mica granite of northern and southeastern New Hampshire
NHD2b;0	Porphyritic biotite granodiorite
NHD3Ab;0	Biotite tonalite
NHD3Bb;0	Biotite trondhjemite in Rumney quadrangle
NHD6;0	Biotite quartz diorite in northeastern New Hampshire
NHDb2b;0	Bethlehem Granodiorite
NHDc1m;0	Concord Granite
NHDc3Am;0	Two-mica tonalite
NHDe9;0	Exeter Diorite
NHDg;0	Gile Mountain Formation, undivided
NHDgc;0	Gile Mountain Formation, Interbedded gray slate or phyllite and brown-weathering calcite-ankerite metasiltstone
NHDgm;0	Gile Mountain Formation, Meetinghouse Slate Member
NHDgv;0	Gile Mountain Formation, Mafic metavolcanic member
NHDi;0	Ironbound Mountain Formation, undivided
NHDib;0	Ironbound Mountain Formation, Basaltic to andesitic member
NHDie;0	Ironbound Mountain Formation, Euxinic metashale member
NHDif;0	Ironbound Mountain Formation, Felsic volcanic member
NHDih;0	Ironbound Mountain Formation, Grits at Halls Stream in northern New Hampshire
NHDir;0	Ironbound Mountain Formation, Metarhyolite and microgranite intrusions
NHDk2x;0	Kinsman Granodiorite
NHDl;0	Littleton Formation, undivided
NHDlc;0	Littleton Formation, Calc-silicate rock
NHDlcs;0	Littleton Formation, Metaconglomerate and quartzite
NHDll;0	Littleton Formation, Lower unnamed member
NHDlu;0	Littleton Formation, Upper unnamed member
NHDlv;0	Littleton Formation, Volcanic lentils
NHDlvb;0	Littleton Formation, Metabasaltic greenstone or amphibolite
NHDlvs;0	Littleton Formation, Epiclastic metavolcanic sediments
NHDs1-6;0	Spaulding Tonalite
NHDs6-9B;0	Hypersthene-biotite quartz diorite and hornblende or actinolite diorite or gabbro
NHDS9;0	Metamorphosed gabbro, diorite, and intrusive basalt dikes
NHDSlr;0	Migmatitic rocks
NHDw3A;0	Winnipesaukee Tonalite
NHJ1-4l;0	Leucocratic granite to quartz syenite
NHJ1a;0	Fine-grained granite
NHJ1h;0	Hastingsite granite
NHJ1hx;0	Granite porphyry
NHJ1O;0	Nepheline-sodalite-hastingsite syenite
NHJ1r;0	Mesoperthitic granite
NHJ1x;0	Porphyritic granite
NHJ4h;0	Hornblende or alkalic amphibole quartz syenite
NHJ4hx;0	Porphyritic hornblende or alkalic amphibole quartz syenite.
NHJ4x;0	Quartz syenite
NHJ5;0	Hornblende-biotite quartz monzodiorite
NHJ7h;0	Hornblende (or alkalic amphibole) syenite
NHJ7x;0	Porphyritic syenite
NHJ8;0	Augite monzodiorite
NHJ9A;0	Diorite
NHJ9Ah;0	Porphyritic hornblende diorite
NHJ9B;0	Gabbro
NHJc1b;0	Conway Granite
NHJmv;0	Moat Volcanics
NHJo1b;0	Mount Osceola Granite, Green biotite mesoperthitic granite
NHJo1h;0	Mount Osceola Granite, Granite containing hornblende and, locally, hastingsite, ferrohedenbergite, or fayalite
NHK1a;0	Rhyolite and fine-grained granite
NHK1bx;0	Porphyritic biotite granite
NHK1r;0	Medium-grained mesoperthitic granite containing riebeckite and (or) hastingsite
NHK2;0	Biotite-hornblende granodiorite
NHK4x;0	Large mesoperthitic phenocrysts in a pink to gray quartz syenite porphyry of "Albany type"
NHK7C;0	Gray augite-hornblende-biotite monzonite
NHK9A;0	Hornblende diorite
NHK9AB;0	Augite-hornblende diorite and gabbro
NHK9B;0	Augite-hornblende-biotite gabbro
NHKc1b;0	Mesoperthitic biotite granite
NHKv;0	Basalt
NHMD1m;0	Two-mica granite
NHMD3B;0	Trondhjemite and abundant pegmatite
NHOal;0	Metavolcanic and metasedimentary rocks of the lower part of Ammonoosuc Volcanics, undivided
NHOalb;0	Ammonoosuc Volcanics, Metabasalt
NHOalf;0	Ammonoosuc Volcanics, Felsic metavolcanic rocks
NHOalg;0	Ammonoosuc Volcanics, Volcaniclastic metagraywackes
NHOali;0	Ammonoosuc Volcanics, White quartz-kyanite rock and silicate iron-formation
NHOals;0	Ammonoosuc Volcanics, Metasedimentary rocks
NHOalx;0	Ammonoosuc Volcanics, Bimodal volcanic rocks
NHOaus;0	Ammonoosuc Volcanics, Metasedimentary rocks
NHOaux;0	Ammonoosuc Volcanics, Bimodal volcanic rocks
NHOc1b;0	Biotite granite
NHOc3Ah;0	Hornblende-biotite tonalite
NHOc3Ax;0	Porphyritic phase of hornblende-biotite tonalite
NHOc9B;0	Gabbro and diabase
NHOCAd;0	Dead River Formation, undivided
NHOCAdp;0	Dead River Formation, Graded-bedded metapelite
NHOCAzl;0	Aziscohos Formation, Lower unnamed member
NHOCAzu;0	Aziscohos Formation, Upper unnamed member
NHOh1-2h;0	Hornblende granite to granodiorite
NHOh2-9A;0	Tonalite, diorite, granodiorite, and granite
NHOh2h;0	Hornblende granodiorite of Highlandcroft pluton
NHOj3A;0	Tonalite
NHOo1-3A;0	Granite, granodiorite, and tonalite
NHOo1-3B;0	Granite, granodiorite, and trondhjemite
NHOo1b;0	Biotite granite
NHOo1bx;0	Porphyritic (alkalic feldspar) biotite granite
NHOo1h;0	Hornblende-biotite granite
NHOo2-3A;0	Granodiorite to tonalite
NHOo2b;0	Biotite granodiorite
NHOo2bx;0	Porphyritic biotite granodiorite in northern Jefferson dome in Milan quadrangle
NHOo2h;0	Hornblende granodiorite
NHOo3B;0	Trondhjemite
NHOo3B-6;0	Trondhjemite and quartz diorite in northern Jefferson dome in Gorham quadrangle
NHOo4-7h;0	Hornblende-biotite quartz syenite to syenite
NHOo4bx;0	Porphyritic biotite quartz syenite in central Jefferson dome in Mt. Washington quadrangle
NHOo4Ch;0	Hornblende quartz monzonite
NHOo9B;0	Hornblende gabbro
NHOp;0	Partridge Formation, undivided
NHOpv;0	Partridge Formation, Interstratified metavolcanic rocks
NHOpvi;0	Partridge Formation, White quartz-kyanite rock
NHOq;0	Quimby Formation
NHOZrb;1	Rye Complex, Breakfast Hill Granite of Novotny (1964).
NHOZrz;0	Rye Complex
NHOZrz;1	Rye Complex
NHP1m;0	Gray biotite granite
NHPAM1m;0	Two-mica granite of the Sebago batholith and Effingham pluton of eastern New Hampshire
NHS1b;0	Biotite granite stock and dikes
NHSa2x;0	Ayer Granodiorite
NHSc;0	Clough Quartzite
NHSf;0	Fitch Formation (Upper Silurian; Pridolian and Ludlovian)
NHSfc;0	Fitch and Clough Formations, undivided
NHSfr;0	Frontenac Formation, undivided
NHSfrb;0	Frontenac Formation, Metabasalt interbeds
NHSfrc;0	Frontenac Formation, Massive tan- or brown-weathering calcite-ankerite-muscovite granofels and interbedded gray metapelite
NHSfrg;0	Frontenac Formation, Graded-bedded metagraywacke and subordinate gray phyllite
NHSfrv;0	Frontenac Formation, Mixed volcanic and sedimentary facies
NHSfrx;0	Frontenac Formation, Proximal bimodal volcanic facies
NHSg;0	Greenvale Cove Formation
NHSm;0	Madrid Formation
NHSmsf;0	Madrid and Smalls Falls Formations, undivided
NHSn1x;0	Newburyport Complex
NHSn2-3A;0	Newburyport Complex
NHSOb;1	Merrimack Group, Berwick Formation
NHSObc;1	Merrimack Group, Berwick Formation, Unnamed member
NHSObg;1	Merrimack Group, Berwick Formation, Gove Member
NHSOe;1	Merrimack Group, Eliot Formation
NHSOec;1	Merrimack Group, Eliot Formation, Calef Member
NHSOk;1	Merrimack Group, Kittery Formation
NHSp;0	Perry Mountain Formation, undivided
NHSpr;0	Perry Mountain and Rangeley Formations, undivided
NHSpvs;0	Perry Mountain Formation, Sedimentary and subordinate distal felsic and mafic volcanic facies in Piermont allochthon
NHSpvx;0	Perry Mountain Formation, Volcanic facies in Piermont allochthon
NHSr;0	Rangeley Formation, undivided
NHSrc;0	Member C (uppermost) of the Rangeley Formation in Maine and northeastern and southwestern New Hampshire
NHSrl;0	Lower part of Rangeley Formation
NHSrlp;0	Rangeley Formation, Ribbon-banded calc-silicate of eastern New Hampshire
NHSru;0	Upper part of Rangeley Formation
NHSrup;0	Rangeley Formation, Pink to green calc-silicate and purple biotite granofels
NHSrvf;0	Rangeley Formation, Felsic metavolcanic rocks
NHSsf;0	Smalls Falls Formation, undivided
NHSsfb;0	Smalls Falls Formation, Metabasalt member
NHSsfc;0	Smalls Falls Formation, Metaconglomerate member
NHSsff;0	Smalls Falls Formation, Felsic metavolcanic member
NHSsfx;0	Smalls Falls Formation, Mixed metavolcanic rocks and metavolcanic sediments
NHwater;0	Water
NHZmz;0	Massabesic Gneiss Complex Enumerated_Domain:
NHZmz;1	Massabesic Gneiss Complex Attribute:
NH001	New Hampshire Geological Survey and U.S. Geological Survey, 2006 (in progress), Bedrock Geologic Map of New Hampshire - A Digital Representation of the Lyons and others 1997 map and ancillary files, scale 1:250,000.
US001	Johnson, Bruce R. and Leveritch, Beth, 1998, 1:100,000 Scale State Boundaries of the Conterminous United States: U.S. Geological Survey, unpublished (see metadata file: st100kmeta.txt, CONUSdocumentationNENJ.pdf)

unit_age

The geologic age from the source map used.

type: character width: 60 output width: 60 (Source: Doug Stoeser (USGS))

Value	Definition
Cretaceous
Devonian - Mississippian
Devonian - Silurian
Devonian? – Silurian?
Early – Late Devonian
Early – Late Silurian
Early – Middle Jurassic
Early Cretaceous
Early Devonian
Early Devonian – Late Devonian
Early Jurassic
early Late Silurian
Early Silurian
Jurassic
Late Devonian
Late Ordovician
Late Proterozoic
Late Silurian
Lower Devonian
Lower Devonian; Siegenian
Lower Silurian (Llandoverian)
Lower Silurian (upper Llandoverian)
Lower Silurian?
Lower? – Middle? Silurian
Middle - Late? Jurassic
Middle - Upper Ordovician
Middle Jurassic?
Middle Ordovician
Mississippian - Pennsylvanian
Ordovician? – Late Proterozoic?
Ordovician? – Silurian?
Permian
Silurian
Silurian?
unknown
Upper Cambrian
Upper Cambrian?
Upper Cambrian? – Lower Ordovician?
Upper Ordovician?
Upper Silurian – (Pridolian and Ludlovian)
Upper Silurian?
Upper to Middle Silurian (Ludlovian and Wenlockian)

rocktype1

The predominant lithology found in the formation.

type: character width: 40 output width: 40 (Source: Johnson Lith Class 6.1a)

Value	Definition
amphibolite
basalt
bimodal suite
calc-silicate rock
conglomerate
diorite
felsic metavolcanic rock
felsic volcanic rock
gabbro
granite
granitic gneiss
granodiorite
granofels
greenstone
ignimbrite
mafic metavolcanic rock
marble
meta-argillite
meta-basalt
meta-conglomerate
meta-rhyolite
metasedimentary rock
metavolcanic rock
mica schist
migmatite
monzodiorite
monzonite
pelitic schist
phyllite
quartz diorite
quartz monzodiorite
quartz monzonite
quartz syenite
quartzite
rhyolite
schist
slate
syenite
tonalite
trondhjemite

rocktype2

The second most predominant lithology in the formation.

type: character width: 40 output width: 40 (Source: Johnson Lith Class 6.1)

Value	Definition
amphibolite
andesite
ash-flow tuff
calc-silicate schist
diabase
diorite
felsic metavolcanic rock
gabbro
granite
granodiorite
granofels
ignimbrite
iron formation
mafic metavolcanic rock
marble
meta-argillite
meta-conglomerate
metasedimentary rock
metavolcanic rock
pegmatite
phyllite
quartz diorite
quartz monzonite
quartz syenite
quartz-feldspar schist
quartzite
sandstone
schist
siltstone
slate
syenite
tonalite

NH_geol.aat

Arc attribute table for New Hampshire geologic coverage. (Source: ESRI)

arc-code

Unique identifier for the line feature

type: integer width: 3 output width: 3 (Source: AAT data dictionary)

Value	Definition
1	contact, location certain
4	normal fault, location certain, digitized with upthrown side on the right (code of 1 added to ARC-PARA1 where U/D is designated in source)
7	shoreline or riverbank
10	thrust fault, location certain, teeth on right from origin (angle of thrusting added to ARC-PARA1 where designated in source)
12	thrust fault, location inferred, queried, teeth on right from origin (angle of thrusting added to ARC-PARA1 where designated in source)
30	fault, sense of displacement unknown or undefined, location certain
35	high-angle reverse fault, location certain, teeth on right from origin (angle of thrusting added to ARC-PARA1 where designated in source)
50	dike or sills, unspecified, drawn in heavy red line.
87	right lateral fault, location certain
90	left lateral fault, location certain
99	bounding line (neatline) of coverage
124	state boundary

arc-para1

Used for "decorated" lines where additional information is needed.

type: integer width: 3 output width: 3 (Source: AAT data dictionary)

Value	Definition
0	no additional information
1

arc-para2

"Scratch" field used mostly in Alaska.

type: integer width: 3 output width: 3 (Source: AAT data dictionary)

Value	Definition
0	no additional information

source

An alphanumeric code (e.g. US001) that designates the source material used.

type: character width: 6 output width: 8 (Source: Doug Stoeser (USGS))

Value	Definition
NH001	Bennett, D. S, , Wittkop, C.A., and Dicken, C.L., 2006 , Bedrock Geologic Map of New Hampshire - A Digital Representation of the Lyons and others 1997 map and ancillary files: U.S. Geological Survey Data Series 215, scale 1:250,000, CD-ROM.
NH101	C.L. Dicken added arcs.
NH102	C.L. Dicken flipped arcs.
NH103	C.L. Dicken corrected mistagged arcs.
US001	Johnson, Bruce R. and Leveritch, Beth, 1998, 1:100,000 Scale State Boundaries of the Conterminous United States: U.S. Geological Survey, unpublished (see metadata file: st100kmeta.txt, CONUSdocumentationNENJ.pdf)

NH_dike.aat

Dike arc attribute table for New Hampshire coverage. (Source: ESRI)

orig_label

Unmodified map unit symbol from source cover

type: character width: 12 output width: 12 (Source: AAT data dictionary)

Value	Definition
unknown	unknown dikes

sgmc_label

orig_label + ;n where n= province number (n=0 if no province number) type: character width: 16 output width: 16 (Source: AAT data dictionary)

Value	Definition
unknown	unknown

unit_link

composite map label = ST + sgmc_label This creates a unique identifier for every unit in the CONUS (continental United States) covers.

type: character width: 18 output width: 18 (Source: Doug Stoeser (USGS))

Value	Definition
unknown	unknown dikes

arc-code

Unique identifier for the line feature

type: integer width: 3 output width: 3 (Source: AAT data dictionary)

Value	Definition
50	dike or sill, unspecified, drawn in heavy red line

dike_lith

General lithologic classification as specified below: Unspecified Mafic Felsic Mafic and felsic lamprophyre type: character width: 20 output width: 20 (Source: AAT data dictionary)

Value	Definition
unspecified

dike_age

Free form field, usage same as unit_age field from unit coding specifications.

type: character width: 60 output width: 60 (Source: AAT data dictionary)

Value	Definition
unknown

source

An alphanumeric code (e.g. US001) that designates the source material used.

type: character width: 6 output width: 8 (Source: Doug Stoeser (USGS))

Value	Definition
NH001	Bennett, D. S, , Wittkop, C.A., and Dicken, C.L., 2006 , Bedrock Geologic Map of New Hampshire - A Digital Representation of the Lyons and others 1997 map and ancillary files: U.S. Geological Survey Data Series 215, scale 1:250,000, CD-ROM.

Entity_and_Attribute_Overview:

Coding for polygon attributes:

NAME: FEATURE: orig_label unmodified map unit symbols from source cover sgmc_label orig_label modified for standard geologic age symbols and an integer code added for province unit_link sgmc_label and a state code identifier source reference to source of data unit_age geologic age rocktype1 predominant lithology rocktype2 second most predominant lithology

Coding for arc attributes:

NAME: FEATURE: arc-code unique integer identifier arc-para1 used where additional information is needed arc-para2 scratch field source reference to source of data

Coding for point attributes:

NAME: FEATURE: point_feature name of feature on map source reference to source of data

Coding for dikes (special arcs) attributes:

NAME: FEATURE: orig_label unmodified map unit symbols from source cover sgmc_label orig_label modified for standard geologic age symbols and an integer code added for province arc-code unique integer identifier dike_lith general lithology dike_age geologic age source reference to source of data

Entity_and_Attribute_Detail_Citation: ESRI

Who produced the data set?

Who are the originators of the data set? (may include formal authors, digital compilers, and editors)
- Suzanne W. Nicholson
- Connie L. Dicken
- John D. Horton
- Michael P. Foose
- Julia A.L. Mueller
- Rudi Hon
Who also contributed to the data set?

State Geologic Map Compilation (SGMC) activity of the National Surveys and Analysis projects of the US Geological Survey Mineral Resources Program.
To whom should users address questions about the data?

Suzanne W. Nicholson
U.S. Geological Survey
12201 Sunrise Valley Dr. MS954
Reston, VA 20192
USA

703-648-6344 (voice)
swnich@usgs.gov

Why was the data set created?

A primary goal of this work is to develop geologic map datasets with standardized structure and attribution. The database design and standards are documented in CONUSdocumentationNENJ.pdf of this series. The intent is that contiguous databases can be merged seamlessly and without any additional effort. In addition to a common database structure, the conterminous U.S. state databases (the contiguous 48 states) have been fitted to a set of standard state boundaries so that, when states are merged, they match without slivers or overlap. No attempt has been made to reconcile differences in mapping across state boundaries.

How was the data set created?

From what previous works were the data drawn?
nh geol (source 1 of 3)
U.S. Geological Survey, and Survey, N.H. Geological , 2006, Bedrock Geologic Map of New Hampshire – A Digital Representation of the Lyons and others 1997 map and ancillary files: U.S. Geological Survey, Reston, Virginia.
Online Links:
- none
Type_of_Source_Media: vector

Source_Scale_Denominator: 250,000

Source_Contribution: provided geology for state map
state boundaries (source 2 of 3)

Johnson, Bruce R. , unpublished, 1:100,000 Scale State Boundaries of the Conterminous United States.

Other_Citation_Details:
Arc/INFO coverage developed by Bruce Johnson. Derived from USGS 100,000-scale DLG boundary layer quadrangles.

Type_of_Source_Media: online

Source_Scale_Denominator: 100,000

Source_Contribution: provided linework of the conterminous state boundaries

lithclass (source 3 of 3)

Johnson, Bruce R. , unpublished, Geologic Map Unit Classification, ver. 6.1.

Other_Citation_Details:
Document has been modified and is included in Appedices of the publication.

Type_of_Source_Media: online; http:/geology.usgs.gov/dm

Source_Scale_Denominator: none

Source_Contribution:
Source of lithologic codes and specific rock names found in ROCKTYPE1 and ROCKTYPE2.
How were the data generated, processed, and modified?

Date: 2003 (process 1 of 11)
The purpose of this standardization is to allow all SGMC covers to be seamlessly joined without any additional effort to form regional or national level digital maps. Note that for Alaska, the state is being compiled as blocks of 1:250k quadrangles that will ultimately be used to compile a new state map. Douglas Stoeser (USGS) and Ric Wilson (USGS) are co-coordinators for the overall SGMC effort, with Stoeser coordinating work on the mainland states and Wilson coordinating work for Alaska and Hawaii.

Date: 2006 (process 2 of 11)
C.L. Dicken obtained the digital geologic map of New Hampshire from Derek Bennett via ftp (April 2006). The coverage was re-projected into the following:
projection: Lambert Conformal Conic units: meters datum: NAD27 standard parallel 1: 33 0 0.000 standard parallel 2: 45 0 0.000 central meridian: -100 0 0.000 reference latitude: 0 0 0.000 false easting: 0.00000 false northing: 0.00000
(Note: Attributes associated with the generation of the coverages were not deleted. PAT - shape, area, perimeter, coverage#, and coverage-id AAT - shape, fnode#, tnode#, lnode#, rnode#, length, coverage#, and coverage-id)
All attributes were deleted except CODE. The values from CODE where then calculated into a new field called orig_label.

Date: 2006 (process 3 of 11)
The relevant state outline (arcs) was removed from the coverage and replaced with the arcs from the 1:100,000 Scale State Boundaries of the Conterminous United States.
This allows for a seamless fit of each state to a standard state boundary base.

Date: 2005 (process 4 of 11)
The following attributes were exported from Filemaker as a .dbf: orig_label, map_symbol2, unit_link, reference_id, unit_age, rocktype1, and rocktype2.
orig_label reflects the original map symbol used on the source map
map_symbol2 reflects map-symbol1 with the addition of a province number
unit_link is an auto generated field based on map-symbol2 and the state abbreviation (e.g. NH001) that produces a unique identifier for each map unit
reference_id was populated with an alphanumeric code (e.g. US001) that designates the source used for the linework and other references used to describe the age or lithologies of the unit.
unit_age was populated with general age assignment
rocktype1 records dominant lithology (does not imply minimum percentage of abundance), using standardized data dictionary
rocktype2 records second most dominant lithology, using standardized data dictionary
The attributes were then converted using the following structure:
item name: orig_label width: 12 output: 12 type: c
item name: sgmc_label width: 16 output: 16 type: c
item name: unit_link width: 18 output: 18 type: c
item name: source width: 6 output: 8 type: c
item name: unit_age width: 60 output: 60 type: c
item name: rocktype1 width: 40 output: 40 type: c
item name: rocktype2 width: 40 output: 40 type: c

Date: 2006 (process 5 of 11)
Once the .dbf was in the correct format with standardized column widths and data structure, it was converted into a lookup table (.lut) in Arc/Info. Then a joinitem was performed to join the look-up table to the polygon attribute table. orig_label was used as the merge item.

Date: 2006 (process 6 of 11)
Next, in preparing the uniform .aat file, the following items were added to the table:
item name: arc-code width: 3 output: 3 type: i
item name: arc-para1 width: 3 output: 3 type: i
item name: arc-para2 width: 3 output: 3 type: i
item name: source width: 6 output: 8 type: c

Date: 2006 (process 7 of 11)
Arc-code was populated using the paper map source to tag the lines using the AAT line type data dictionary (see CONUSdocumentationNENJ.pdf in this series).
Arc-para1 was populated when additional information was available such as identifying the upthrown side of a fault or direction of thrusting on a fault. (see CONUSdocumentationNENJ.pdf)
Arc-para2 is a scratch field that is used mostly in Alaska.
Source was populated with an alphanumeric code (e.g. US001) that designates the source used for the linework.

Date: 2006 (process 8 of 11)
Once the .aat and the .pat were populated with the correct attributes, the coverage was exported as an .e00 file (NHgeol_lcc.e00).
Then it was unprojected into geographic coordinates and exported again (NHgeol_dd.e00).

Date: 2006 (process 9 of 11)
Faults were extracted from the coverage and created a separate fault coverage (NHfaults_lcc) and then exported (NHfaults_lcc.e00).

Date: 2006 (process 10 of 11)
Dikes were extracted from the coverage and created a separate dike coverage (NHdike_lcc) and then exported (NHdike_lcc.e00).

Date: 2006 (process 11 of 11)
Finally, the geology lines, geology polygons, faults and dikes were converted into shapefiles; in both geographic coordinates and in Lambert Conformal Conic projection.
What similar or related data should the user be aware of?

How reliable are the data; what problems remain in the data set?

How well have the observations been checked?
The values of the attributes ROCKTYPE1 and ROCKTYPE2 were assigned based on the information in the legends of the source maps (most of which are paper). The definitions of these values are described in the draft document Geologic Map Classification version 6.1 (Johnson and others); available at the following website: <http://geology.usgs.gov/dm>
How accurate are the geographic locations?
Accuracy of New Hampshire state boundary and those arcs intersecting it: The accuracy of the state boundary arcs is based on the 1:100,000 scale original data used to produce this boundary. (Johnson, Bruce R. and Leveritch, Beth, 1998, 1:100,000 Scale State Boundaries of the Conterminous United States: U.S. Geological Survey, unpublished (see metadata file: st100kmeta.txt, CONUSdocumentationNENJ.pdf))
Those internal arcs intersecting the state boundary were extended or shortened as needed to complete polygons, possibly creating a small amount of error.
How accurate are the heights or depths?
Where are the gaps in the data? What is missing?
Bodies of water are classified as water, and the geologic units underlying them are not included in this coverage.
How consistent are the relationships among the observations, including topology?
All internal polygons were checked for closure with vendor software and on hard copy plots. Overshoots and undershoots have been deleted or corrected as appropriate.

How can someone get a copy of the data set?

Are there legal restrictions on access or use of the data?

Access_Constraints: none

Use_Constraints:
This database is not meant to be used or displayed at any scale other than 1:500,000.
Any hardcopies utilizing these data sets shall clearly indicate their source. If the licensee has modified the data in any way they are obligated to describe the types of modifications they have performed on the hardcopy map. Licensee specifically agrees not to misrepresent these data sets, nor to imply that changes they made were approved by the U.S. Geological Survey.

Who distributes the data set? (Distributor 1 of 1)

U.S. Geological Survey Information Services Reston-ESIC
U.S. Geological Survey
507 National Center
Reston, Virginia 20192
USA

1-888-ASK-USGS or 1-703-648-5953 (voice)
<http://www.usgs.gov/contact/>
What's the catalog number I need to order this data set?
What legal disclaimers am I supposed to read?

Any use of trade, product, or firm names is for descriptive purposes only and does not imply endorsement by the USGS. Although these data have been used by the USGS and have been successfully imported into data base programs, no warranty, expressed or implied, is made by the USGS as to how successfully or accurately the data can be imported into any specific application software running on any specific hardware platform. The fact of distribution shall not constitute any such warranty, and no responsibility is assumed by the USGS in connection therewith. This data base GIS is not meant to be used or displayed at any scale other than 1:500,000.
How can I download or order the data?
- Availability in digital form:
  
  Data format: Geologic units and structural features in format ARC/INFO export (version 9.0)
  
  Network links: <http://pubs.usgs.gov/of/2006/1272/>
- Cost to order the data: none

Data format:	Geologic units and structural features in format ARC/INFO export (version 9.0)
Network links:	<http://pubs.usgs.gov/of/2006/1272/>

Who wrote the metadata?

Dates:: Last modified: 28-Aug-2006
Metadata author:: U.S. Geological Survey
c/o Connie L. Dicken
12201 Sunrise Valley Dr. MS954
Reston, VA 20192
USA

703-648-6482 (voice)
cdicken@usgs.gov
Metadata standard:: Content Standard for Digital Geospatial Metadata (FGDC-STD-001-1998)

This page is <http://tin.er.usgs.gov/geology/state/metadata/nh.faq.html>

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