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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...
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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.
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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.
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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.
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Arden. Entries to gypsum mine on southwest side of hill. Clark County, Nevada. September 2, 1916.
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Goose egg structure in limestone beds associated with colemanite deposit. Near Callville Wash, Clark County, Nevada. 1915. Plate 3-A in U.S. Geological Survey. Bulletin 735. 1923.
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Album Caption: Sloan Hill. Small overthrust in the Crystal Pass limestone member of the Sultan limestone. Face of quarry 3. Note the mouths of the two tunnels. Ivanpah quadrangle, Clark County, Nevada. 1943. Published in U.S. Geological Survey Bulletin 973-C, figure 18-A. 1952.
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Arrowhead limestone southeast of the Yellow Pine mine in center of sec. 20 T. 54 S., R. 58 E. Clark County, Nevada. December 13, 1924. Plate 6-B in U.S. Geological Survey. Professional paper 162. 1931.
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Album caption: Party with the "Smiths" at Griggs Ferry. Enlargement of L.R. Freeman's photo W-3. 1923. Handwritten notes on album caption: Clark County, Nevada; Grand Canyon 409. No index card. See also: grand00408
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Boss mine, NE 1/4 sec. 34, T. 24 S., R. 57 E. The workings explore a crushed zone which, lies between dolomitized limestone of the Monte Cristo formation on the right (east) and similar rocks of the Sultan formation on the left (west). Clark County, Nevada. Circa 1921.
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View northwest(?) from hill above borax mine at Callville Wash, showing deformed Tertiary beds and aggraded plain. Clark County, Nevada. June 1922.
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Callville Wash. Road descending to borax mine. Clark County, Nevada. June 1922.
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Typical exposures of limestone member of Horse Spring formation, near Horse Spring. Limestone member of Horse Springs formation on the left ridge; Overton conglomerate (center); Paleozoic limestone (right) and La Plata sandstone (right center). Clark County, Nevada. 1915. Plate 1-A in U.S. Geological Survey. Bulletin 735. 1923.
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Arden. Interior gypsum mine. Clark County, Nevada. 1916.
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Goose egg structure in limestone beds associated with colemanite deposit. Near Callville Wash, Clark County, Nevada. 1915. Plate 3-B in U.S. Geological Survey. Bulletin 735. 1923.
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Album Caption: Sloan Hill. Drag fold on a small overthrust. Above the south tunnel in quarry 3. Compare with photograph number 13. The fold is at the left on the overthrust side of the fault. Stadia rod in foreground. Ivanpah quadrangle, Clark County, Nevada. 1943. Published in U.S. Geological Survey Bulletin 973-C, figure 18-B. 1952.
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Typical exposures of limestone member of Horse Spring formation, near Bitter Spring, limestone member of Horse Springs formation center ridge. Clark County, Nevada. 1915. Plate 1-B in U.S. Geological Survey. Bulletin 735. 1923.
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Details of Anchor limestone showing chert nodules in outcrop; 1,000 feet west of Milford Mine in sec. 6 T. 26 S., R. 58 E. Clark County, Nevada. December 12, 1924. Plate 6-A in U.S. Geological Survey. Professional paper 162. 1931.
map background search result map search result map Preliminary geologic map of the Mesquite quadrangle, Clark and Lincoln Counties, Nevada and Mohave County, Arizona Blood variable data for clinically normal and clinically abnormal Mojave Desert tortoises (Gopherus agassizii) in 2013 Party with the "Smiths" at Griggs Ferry, Clark County, Nevada. 1923. Preliminary geologic map of the Mesquite quadrangle, Clark and Lincoln Counties, Nevada and Mohave County, Arizona Blood variable data for clinically normal and clinically abnormal Mojave Desert tortoises (Gopherus agassizii) in 2013 Party with the "Smiths" at Griggs Ferry, Clark County, Nevada. 1923.