Oxygen-isotope, X-ray-diffraction and scanning-electron-microscope examinations of authigenic-layer-silicate minerals from Mississippian and Pennsylvanian sandstones in the Michigan Basin
Open-File Report
93-103
By: K.F. Zacharias, D.F. Sibley, D.B. Westjohn, and T. L. Weaver
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Abstract
Oxygen-isotope compositions of authigenic-layer silicates (<2-micrometer fraction) extracted from Mississippian and Pennsylvanian sandstones in the Lower Peninsula of Michigan were determined. Petrographic and scanning-electron-microscope examinations, and X-ray diffractograms show that chlorite and kaolinite are the most common authigenic-layer silicates in Mississippian sandstones. The range of oxygen-isotope compositions of chlorite and kaolinite are +10.3 to +11.9 and +12.9 to +19.3 pars per thousand (per mil) (relative to Standard Mean Ocean Water), respectively. Kaolinite is the only authigenic-isotopic compositions of kaolinite range from +16.8 to +19.0 per mil.
Study Area
| Publication type | Report |
|---|---|
| Publication Subtype | USGS Numbered Series |
| Title | Oxygen-isotope, X-ray-diffraction and scanning-electron-microscope examinations of authigenic-layer-silicate minerals from Mississippian and Pennsylvanian sandstones in the Michigan Basin |
| Series title | Open-File Report |
| Series number | 93-103 |
| DOI | 10.3133/ofr93103 |
| Year Published | 1993 |
| Language | English |
| Publisher | U.S. Geological Survey |
| Publisher location | Lansing, MI |
| Contributing office(s) | Michigan Water Science Center |
| Description | iv, 15 p. |
| Country | United States |
| State | Michigan |
| Other Geospatial | Michigan Basin |