Online link | https://geo-nsdi.er.usgs.gov/metadata/open-file/97-681/cwell.faq.html |
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Description | These wells assist in characterizing structures at hypocentral depths in the Wabash Valley. We show locations of 32 wells that provided information about depths to basement, the rifting history of the Rough Creek Graben and Reelfoot rift, coeval rifting e |
Originators | Rhea, Susan |
Publication | U.S. Geological Survey Open-File Report 97-0681 |
Lithologic descriptions of core sections Gravel weights in grams for -2.0 to -0.5 phi Cumulative percent by weight using settling tube for -1.0 to 4.5 phi Light transmission values using hydrophotometer for 4.5 to 14 phi Weight and percent by weight of gravel, sand, and silt+ clay fractions Statistical measures of grain size Peak areas of selected clay and non-clay minerals in counts per second determined through X-ray diffraction Percent by weight of carbon dioxide, organic carbon, magnesium, calcium, and strontium Major oxides, Cs2O, and ignition loss (LOI) as weight percent of dry sediment, determined by X-ray fluorescence, non-dispersive X-ray fluorescence, and gravimetry, respectively; major oxides are SiO2, Al2O3, Fe2O3, MgO, CaO, Na2O, K2O, TiO2, P2O5, and MnO. Minor element composition (ppm) by semi-quantitative optical emission spectroscopy; minor elements are B, Ba, Co, Cr, Cu, Ga, Mo, Ni, Pb, Sc, V, Y, and Zr. Pore-water content and salinity (weight percent), Cl, total dissolved CO2, and SO4 in millimolal. Delta-C-13 and Delta-O-18 in per mil relative to PDB. Delta-D (per mil) and salinity (percent) of interstitial fluids. Sulfur and carbon concentration, sulfur isotopic compositions (per mil relative to CDT) broken down as sulfur in acid-volatile sulfides, in disulfides, in organosulfur, sulfates, and total sulfur. Magnetization J (in emu/cc), bulk susceptibility (in cgs system), J/chi, mean destructive field, high-stability component (C1) declination and inclination, low-stability component (C2) declination and inclination, intermediate- stability component (C3)declination and inclination, C1 grade, C2 grade, C3 grade, ARM (in emu/cc) acquired in a 1000 Oe AF field and 0.5 Oe DC field, and J/ARM. Pass-through bulk susceptibility measurements Detailed lithologic descriptions of tephra layers with comments on correlation to other tephra in the region Weight-percent of oxides by electron probe microanalysis; oxides are SiO2, Al2O3, Fe2O3, MgO, MnO, CaO, TiO2, Na2O, K2O Quantitative comparison of OL-92 tephra layers with others of the western US using a nearest-analog technique. Radiocarbon ages of oolite and humate materials, with estimated uncertainty in the age estimates. Estimated age as a function of depth based on data and sediment accumulation models. Counts of 58 species or other taxonomic categories of diatoms Counts of 12 species or other taxonomic categories of ostracodes Occurrence of 7 species or other taxonomic categories of molluscs Occurrence and identity of fish remains Occurrence and identity of macroscopic organic material Counts of 76 species or other taxonomic categories of pollen from the upper part of the core Counts of 42 genera or other taxonomic categories of pollen throughout the core Depths to tops of drives and slugs
http://pubs.usgs.gov/of/1993/of93-683/report.html