Filters: Tags: Clark County, Nevada (X)
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To improve our understanding of health and immune function in tortoises, we evaluated both standard blood diagnostic (body condition, hematologic, plasma biochemistry values, trace elements, plasma proteins, vitamin A levels) and gene transcription profiles in 21 adult tortoises (11 clinically abnormal; 10 clinically normal) from Clark County, NV, USA. Necropsy and histology evaluations from clinically abnormal tortoises revealed multiple physiological complications, with moderate to severe rhinitis or pneumonia being the primary cause of morbidity in all but one of the examined animals. Improved methods for health assessments are an important element of monitoring tortoise population recovery and can support the...
Categories: Data;
Tags: Clark County, Nevada,
Hidden Valley,
USGS Science Data Catalog (SDC),
biota,
health
Crystal Pass limestone exposed in a cliff 15 feet high in sec. 30, T.26, S. R. 59 E., south end of Spring Mountains. Clark County, Nevada. December 12, 1924. Plate 5-B in U.S. Geological Survey. Professional paper 162. 1931.
Spring Mountains at the mouth of Porter Wash.
Categories: Image;
Tags: Anchor Mine,
Clark County, Nevada,
Hewett, D.F. Collection,
Mills, Mines, Quarries,
Photographers,
Thin bedded dolomite of the Goodsprings formation (upper Cambrian) thrust upon the Aztec sandstone (Jurassic) in northeast corner of sec. 21, T. 22 S., R. 58 E. The contact marks the trace of the Keystone thrust. The curve in the trace is due to local irregularities in the surface and to perspective. Clark County, Nevada. Circa 1921. Plate 14-A, with a graphic, in U.S. Geological Survey. Professional paper 162. 1931.
Stratum of limestone preserved unaltered in midst of dolomitized limestone 200 feet above the base of the Bird Spring formation in sec. 4, T. 25 S., R. 58 E., the workings of the Hoosier mine lie in the foreground. Clark County, Nevada. Circa 1921. Plate 19-A, labels and a graphic, in U.S. Geological Survey. Professional paper 162. 1931.
Categories: Image;
Tags: Clark County, Nevada,
Hewett, D.F. Collection,
Hoosier mine,
Mills, Mines, Quarries,
Photographers,
Types: Map Service,
OGC WFS Layer,
OGC WMS Layer,
OGC WMS Service;
Tags: Clark County, Nevada,
Magnesium
Ninety-nine Mine, W 1/2 sec. 15, T. 23 S., R. 58 E., the ridge on the left is made up of limestones near the base of the Bird Spring formation which dip eastward (left). The Ninety-nine fault passes through the ravine in the center. Clark County, Nevada. Circa 1921. Plate 31-B in U.S. Geological Survey. Professional paper 162. 1931.
Categories: Image;
Tags: Clark County, Nevada,
Hewett, D.F. Collection,
Mills, Mines, Quarries,
Ninety-nine mine,
Photographers,
Aztec sandstone overlying Chinle formation in sec. 22, T. 22 S., R. 58 E., the Aztec sandstone is overlain by thin bedded dolomite of the Goodsprings formation from which it separated by the Keystone thrust fault. Compare with Hewett, photo 365. Clark County, Nevada. Circa 1921. Plate 8-B in U.S. Geological Survey. Professional paper 162. 1931.
Trace of the Keystone thrust west of Goodsprings in the SW 1/4 sec. 29, T. 24 S., R. 58 E; on the right crumpled limestones (now dolomitized) of the Bird Spring from (Pennsylvanian): on the left thin bedded dolomite of the Goodsprings formation (Upper Cambrian). The trace is marked by a reddish zone formed by the oxidation of pyrite the curve is due to relief and perspective. Clark County, Nevada. Circa 1921. Plate 14-B, with a graphic, in U.S. Geological Survey. Professional paper 162. 1931.
Yellow pin mine and camp, NW 1/4 sec. 20, T. 24 S., R.54 E., the slopes of Shenandoah Peak (crest of ridge) are made up of thin bedded limestones of the Bird Spring formation. The porphyry sill underlies the smooth slope behind the hoist. Clark County, Nevada. Circa 1921. Plate 35-A in U.S. Geological Survey. Professional paper 162. 1931.
Categories: Image;
Tags: Clark County, Nevada,
Hewett, D.F. Collection,
Mills, Mines, Quarries,
Photographers,
Yellow Pine mine,
Dolomitized zone (light) in bed of limestone of the Bird Spring formation in sec. 33, T. 25 S., R.58 E., view taken diagonally downward toward a bedding plane. Clark County, Nevada. Circa 1921.
Anchor mine in S 1/2 sec. 23, T. 25 S., R. 58 E. The ore deposit occurs in the Anchor limestone. The ravine marks the position of a late normal fault. Bird Spring formation; Bullion dolomite member of Monte Cristo limestone; Anchor limestone member of Monte Cristo limestone. Clark County, Nevada. Circa 1921. Plate 38-B, with graphics, in U.S. Geological Survey. Professional paper 162. 1931.
Categories: Image;
Tags: Anchor Mine,
Clark County, Nevada,
Hewett, D.F. Collection,
Mills, Mines, Quarries,
Photographers,
Keystone mine NW 1/4 sec. 30, T. 24 S. R. 58 E. The slopes back of the mine are made up of thin bedded dolomite of the Goodsprings formation. Clark County, Nevada. Circa 1921. Plate 31-A in U.S. Geological Survey. Professional paper 162. 1931.
Categories: Image;
Tags: Clark County, Nevada,
Hewett, D.F. Collection,
Keystone mine,
Mills, Mines, Quarries,
Photographers,
Wedge of Bullion dolomite separated by faults from blocks of Yellowpine limestone, view northwest toward ridge west of the Bullion mine in sec. 23, T. 25 S., R. 58 E. Clark County, Nevada. Circa 1921. Plate 15-B, with graphics, in U.S. Geological Survey. Professional paper 162. 1931.
Categories: Image;
Tags: Bullion mine,
Clark County, Nevada,
Hewett, D.F. Collection,
Mills, Mines, Quarries,
Photographers,
Thin bedded dolomites of the upper part of the Goodsprings formation in secs. 28, 26 and 30, T. 24 S., R.58E: due east from the hill (altitude 5,124 feet west of Kirby Wash toward Columbia Pass and Goodsprings. The town is hidden by the hill in the middle distance. Clark County, Nevada. Circa 1921. Plate 5-A in U.S. Geological Survey. Professional paper 162. 1931.
Potosi mine, south center of sec. 12, T. 23 S., R. 57 E., the mine workings explore a zone at the base of the Yellowpine limestone. Clark County, Nevada. Circa 1921. Plate 33-B in U.S. Geological Survey. Professional paper 162. 1931.
Categories: Image;
Tags: Clark County, Nevada,
Hewett, D.F. Collection,
Mills, Mines, Quarries,
Photographers,
Potosi mine,
Borax-bearing series, Callville Wash. Borax outcrop and dump at right of center. Nearer view of beds shown at the left in image 600. Clark County, Nevada. June 1922.
Colemanite deposit near Callville Wash. Looking east along outcrop of colemanite bed, which extends from near center to right side of view. Clark County, Nevada. 1915. Plate 2-B in U.S. Geological Survey Bulletin 735. 1923.
Categories: Image;
Types: Map Service,
OGC WFS Layer,
OGC WMS Layer,
OGC WMS Service;
Tags: Clark County, Nevada,
Noble, L.F. Collection,
Photographers,
photo print
Arden. Entries to gypsum mine on southwest side of hill. Clark County, Nevada. September 2, 1916.
Colemanite deposit near Callville Wash. Looking west along outcrop colemanite bed, which extends from center left to ridge near center. Clark County, Nevada. 1915. Plate 2-B in U.S. Geological Survey Bulletin 735. 1923.
Categories: Image;
Types: Map Service,
OGC WFS Layer,
OGC WMS Layer,
OGC WMS Service;
Tags: Clark County, Nevada,
Noble, L.F. Collection,
Photographers,
photo print
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