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Title Sulfur isotopes related to sedimentation conditions for metalliferous black shales of Pennsylvanian Age
Creator/Author Coveney, R.M. Jr. ; Shaffer, N.R.
Publication Date1985 Feb 01
OSTI IdentifierOSTI ID: 5853854
Report Number(s)CONF-850322-
Other Number(s)CODEN: AAPGB
Resource TypeConference
Specific TypeJournal Article
Resource RelationAm. Assoc. Pet. Geol., Bull. ; Vol/Issue: 69:2; American Association of Petroleum Geologists annual meeting; 25 Mar 1985; New Orleans, LA, USA
Research OrgUniv. of Missouri, Kansas, City
Subject040201 -- Oil Shales & Tar Sands-- Site Geology-- (-1989); BLACK SHALES-- SEDIMENTATION;BLACK SHALES-- SULFUR ISOTOPES; ILLINOIS;INDIANA;KANSAS;MISSOURI;MOLYBDENUM;PENNSYLVANIAN PERIOD;PYRITE;SEDIMENTARY BASINS;SPHALERITE
Related SubjectBITUMINOUS MATERIALS;CARBONACEOUS MATERIALS;CHALCOGENIDES;CHATTANOOGA FORMATION;ELEMENTS;ENERGY SOURCES;FEDERAL REGION V;FEDERAL REGION VII;FOSSIL FUELS;FUELS;GEOLOGIC AGES;GEOLOGIC FORMATIONS;GEOLOGIC STRUCTURES;IRON COMPOUNDS;IRON SULFIDES;ISOTOPES;MATERIALS;METALS;MINERALS;NORTH AMERICA;OIL SHALES;PALEOZOIC ERA;SULFIDE MINERALS;SULFIDES;SULFUR COMPOUNDS;TRANSITION ELEMENT COMPOUNDS;TRANSITION ELEMENTS;USA
Description/Abstract Sulfur isotope composition were determined for pyrite and sphalerite grains isolated from 8 metalliferous Missourian, Desmoinesian, and Atokan black shales from Missouri, Illinois, Kansas, and Indiana.^The younger Missourian shales from the Forest City and Illinois basins contain consistently light sulfur as expected for euxinic conditions, but sulfides from the older shales show heavier and more erratic sulfur values.^These isotope patterns suggest that younger shales accumulated slowly offshore, although older shales may have been deposited more quickly in shallower water.^Isotope values, which also correlate with heavy metal patterns (e.g., higher molybdenum values for the eastern most older shales), may therefore reflect gradually deepening conditions for the epicontinental Pennsylvanian seas of the US Mid-Continent.
Country of PublicationUnited States
LanguageEnglish
FormatPages: 246
System Entry Date2001 May 13

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