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Sulfide replacement of fossil wood from the Agua Zarca Member of the Chinle Formation, at the Nacimiento mine. Reflected light; sample CU-10J. Sandoval County, New Mexico. n.d. Published as figure 8 in the U.S. Geological Survey Professional Paper 907-C. 1976.
Categories: Image;
Types: Map Service,
OGC WFS Layer,
OGC WMS Layer,
OGC WMS Service;
Tags: Mills, Mines, Quarries,
Nacimiento mine,
Photographers,
Sandoval County, New Mexico,
Tourtelot, E.B Collection, All tags...
photo print, Fewer tags
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Nugget Sandstone of Jurassic(?) and Triassic(?) age, showing chalcopyrite (cp) associated with bituminous material (B). Ore minerals may follow a fossil oil-water contact. Exposures by reflected light and by light transmitted through crossed polars; sample CU-28D. Lincoln County, Wyoming. n.d. Published as figure 7 in the U.S. Geological Survey Professional Paper 907-C. 1976.
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Quartzite from the Revett Formation. Exposures by reflected light and by light transmitted through crossed polars. A, Chalcocite (cc) and bornite (bn) interlocked with quartz (Q) and feldspar grains; the relation between sulfide and framework grains probably is a result of low-grade metamorphism. Sample CU-32C; Beecher Peak area. Sanders County, Montana. n.d. Published as figure 14A in the U.S. Geological Survey Professional Paper 907-C. 1976.
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Dolomite (D) filling of voids 1-3 mm across in Nugget Sandstone of Jurassic(?) and Triassic(?) age. Crossed polars; sample CU-28D. Lincoln County, Wyoming. Published as figure 2 in the U.S. Geogical Survey Professional Paper 907-C. 1976.
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Cupriferous drill core of Upper Callanna Beds of Precambrian age from South Flinders Range, South Australia. Specimen supplied by Nigel Rowlands of the Utah Development Company. A, Diagenetic calcite vein cuts the core; an arrow points to the spot where the photomicrograph was taken. n.d. Published figure 16A in the U.S. Geological Survey Professional Paper 907-C. 1976.
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