USGS Geoscience Data Catalog
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Foley, Kevin M. , and Poore, Richard Z. , 1993, Planktic foraminifer census data from Northwind Ridge core 5 Arctic Ocean: U.S. Geological Survey Open-File Report 91-346, U.S. Geological Survey, Reston, VA.Online Links:
This is a Point data set. It contains the following vector data types (SDTS terminology):
Horizontal positions are specified in geographic coordinates, that is, latitude and longitude. Latitudes are given to the nearest 0.001. Longitudes are given to the nearest 0.001. Latitude and longitude values are specified in Decimal degrees.
Range of values | |
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Minimum: | 0.0 |
Maximum: | 623.9 |
Units: | cm |
Resolution: | 0.1 |
Range of values | |
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Minimum: | 2.0 |
Maximum: | 625.9 |
Units: | cm |
Resolution: | 0.1 |
Range of values | |
---|---|
Minimum: | 4.82 |
Maximum: | 23.71 |
Units: | grams |
Resolution: | 0.01 |
Range of values | |
---|---|
Minimum: | 34.9 |
Maximum: | 100 |
Units: | percent by weight |
Resolution: | 0.1 |
Range of values | |
---|---|
Minimum: | 0 |
Maximum: | 9 |
Units: | gram |
Resolution: | 0.01 |
Range of values | |
---|---|
Minimum: | 0 |
Maximum: | 65.1 |
Units: | percent by weight |
Resolution: | 0.1 |
Range of values | |
---|---|
Minimum: | 0 |
Maximum: | 9.25 |
Units: | gram |
Resolution: | 0.01 |
Range of values | |
---|---|
Minimum: | 0 |
Maximum: | 46.6 |
Units: | percent by weight |
Resolution: | 0.1 |
Range of values | |
---|---|
Minimum: | 5.04 |
Maximum: | 30.78 |
Units: | gram |
Resolution: | 0.01 |
Range of values | |
---|---|
Minimum: | 1 |
Maximum: | 128 |
Units: | parts |
Resolution: | 1 |
Range of values | |
---|---|
Minimum: | 0 |
Maximum: | 1007 |
Units: | individuals |
Resolution: | 1 |
Range of values | |
---|---|
Minimum: | 0 |
Maximum: | 20 |
Units: | individuals |
Resolution: | 1 |
Range of values | |
---|---|
Minimum: | 0 |
Maximum: | 23 |
Units: | individuals |
Resolution: | 1 |
Range of values | |
---|---|
Minimum: | 0 |
Maximum: | 22 |
Units: | individuals |
Resolution: | 1 |
Range of values | |
---|---|
Minimum: | 0 |
Maximum: | 1052 |
Units: | individuals |
Resolution: | 1 |
Range of values | |
---|---|
Minimum: | 0 |
Maximum: | 191 |
Units: | individuals |
Resolution: | 1 |
Range of values | |
---|---|
Minimum: | 0 |
Maximum: | 7320 |
Units: | individuals per gram |
Resolution: | 1 |
Range of values | |
---|---|
Minimum: | 0 |
Maximum: | 336 |
Units: | individuals per gram |
Resolution: | 1 |
Range of values | |
---|---|
Minimum: | 0 |
Maximum: | 10 |
Units: | percent of total number of N. pachyderma specimens. |
Resolution: | 0.01 |
We thank Larry Phillips for providing the washed residues and sedimentological data from the core 5 samples.
(703) 648-5285 (voice)
(703) 648-5420 (FAX)
kfoley@geochange.er.usgs.gov
These foraminifer data will be the basis for future interpretive studies of the climate history of the Arctic Ocean.
Foley, Kevin M. , and Poore, Richard Z. , 1993, Planktic foraminifer census data from Northwind Ridge cores PI-88-AR P3, PI-88-AR P7, and PI-88-AR P9, Arctic Ocean: U.S. Geological Survey Open-File Report 93-218, U.S. Geological Survey, Reston, VA.Online Links:
Phillips, R. Larry, Grantz, Arthur, Mullen, Michael W., Rieck, Hugh J., McLaughlin, M. W., and Selkirk, T. L., 1992, Summary of the lithostratigraphy and stratigraphic correlations in piston cores from Northwind Ridge, Arctic Ocean, from USCGC Polar Star, 1988.: U.S. Geological Survey Open-File Report 92-426, U.S. Geological Survey, Menlo Park, CA.
Included in the attribute data for each sample is the fraction of the original sample from which the specimens were extracted.
Although horizontal position of thes cores is given to the nearest 0.01 minute of latitude and longitude, no information is presented in OFR 91-346 or in OFR 92-426 indicating the magnitude of likely errors in the core locations.
Core intervals sampled are indicated in the attribute data to the nearest 0.1 cm, but there is no information in OFR 91-346 or OFR 92-426 concerning the fidelity of depth in core to depth below the sea floor. The samples were taken from piston cores; there is no indication that information from trigger cores or box cores was included.
Planktic foraminifers were identified, sorted and glued to standard 60 square micropaleontological slides. Benthic foraminifers were also counted. All planktic foraminifers were removed from samples containing insufficient specimens for a counting split.
Samples numbered 1 through 88 are 10cc samples obtained for
lithostatigraphy and biostratigraphy. Samples numbered 89 through
131 are cuttings obtained when paleomagnetics samples were taken
and are approximately 10cc.
The samples were washed in distilled water, wet sieved to three
size fractions; <62um, 62um - 2mm, and >2mm. The size fractions
were dried and weighed. The 62um - 2mm and the >2mm fractions were
combined after weighing. The >62um fraction was sieved at 150um
and counting splits of 300 - 350 planktic foraminifers were
obtained from the >150um fraction using a Carpco sample splitter.
In general, our taxonomic concepts follow Parker (1962, 1967).
Are there legal restrictions on access or use of the data?
- Access_Constraints: none
- Use_Constraints: none
(703) 648-6533 (voice)
(703) 648-6560 (FAX)
pschweitzer@usgs.gov
USGS Open-File Report 91-346
This report is preliminary and has not been reviewed for conformity with U.S. Geological Survey editorial standards (or with the North American Stratigraphic Code). Any use of trade, product, or firm names is for descriptive purposes only and does not imply endorsement by the U.S. Government.
Data format: | Text and data tables in format TEXT Size: 0.180 megabytes |
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Network links: |
<http://pubs.usgs.gov/of/1991/of91-346/Core/raw/nwr5.txt> |
(703) 648-6533 (voice)
(703) 648-6560 (FAX)
pschweitzer@usgs.gov