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Filters: Tags: Sweetwater County, Wyoming (X) > partyWithName: Bradley, W.H. (X) > Categories: Image (X)

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Detail of the Bishop conglomerate on the south side of Little Mountain; the larger boulders are a little more than 1 foot across. Sweetwater County, Wyoming. 1930. Plate 39-B, U.S.Geological Survey Professional paper 185-I. 1936.
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Deposit formed around wood by chlorellopsis Reis, natural size. Specimen is from the base of the Laney shale member of the Green River formation, SE 1/4 sec.23, T. 25 N., R. 103 W. Sweetwater County, Wyoming. 1923. Plate 36-A in U.S. Geological Survey. Professional paper 154. 1929.
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Photomicrograph of typical physico-chemical incrustation of calcite: showing the radial structure interrupted by thin concentric zones of limonite granules. The irregular black layer at the base and the small rounded cushion shaped area near the center are spongy algal deposits, which appear almost opaque because they consist of calcite that is almost cryptocrystalline. Enlarged 10 diameters. From the Tipton tongue of the Green River formation, sec. 21, T. 4 N., R. 101 W: Sweetwater County, Wyoming. 1923. Marks on this photo correspond to plate 34-C in U.S. Geological Survey. Professional paper 154. 1929.
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Photomicrograph showing the association of the three principal types of structure found in the algae reefs of the Green River formation; small area of the reef shown in Bradley photo 209. In the lower right hand quarter is colony of the large spherical cells of Chlorellopsis colonata Reis, above that is a thick zone of typical spongy deposit, and at the top and also down the left side is an inorganic incrustation. Enlarged 10 diameters. From the Tipton tongue of the Green River formation, sec. 21, T. 4 N., R. 101 W: Sweetwater County, Wyoming. 1923. Top half is plate 34-A in U.S. Geological Survey. Professional paper 154. 1929.
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North across Henrys Fork, showing the south end of Cedar Mountain with its thick capping of the Bishop conglomerate, which contains a huge lens of coarser grained material that weathers into columnar forms. Below the conglomerate are tuffaceous beds of the Bridger formation. Sweetwater County, Wyoming. 1930. Plate 37-A, U.S.Geological Survey Professional paper 185-I. 1936.
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Polished vertical section of a compound algal head consisting of many small heads, each of which represents a single colony of Chlorellopsis coloniata Reis., these minor bands rest upon a zone of spongy algal deposit, which is separated from another similar zone below by a finely banded inorganic agate like zone; natural size. Specimen is from Tipton tongue of Green River formation in NE 1/4 NE 1/4 sec. 16, T.24 N., R. 102 W. Sweetwater County, Wyoming. 1923. Plate 44-A in U.S. Geological Survey. Professional paper 154. 1929.
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Photomicrograph of typical lobate colony of chlorellopsis coloniata reis: showing the vague layering of the unicells. Enlarged 10 diameters. From the Tipton tongue of the Green River formation, NE cor. sec. 1, T. 24 N., R. 100 W: Sweetwater County, Wyoming. 1923. Plate 32-B in U.S. Geological Survey. Professional paper 154. 1929.
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Polished specimen of algal pebbles showing details of internal structure, see published photo for details. Sweetwater County, Wyoming. 1923. Plate 47 in U.S. Geological Survey. Professional paper 154. 1929.
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Thin section of an oolite from the Laney shale member of the Green River formation on Shell Creek, sec. 9, T. 12 N., R. 98 W., showing large oolite grains with eccentric growth zones. The dark granulose parts of these grains con of mechanically enmeshed silt and the clearer parts consist of fine-grained calcite partly replaced by chalcedonic silica. The groundmass consists of chalcedonic silica, with scattered micro crystals of calcite. Enlarged 11-1/2 diameters. Sweetwater County, Wyoming. 1923. Center portion is plate 48-A in U.S. Geological Survey. Professional paper 154. 1929.
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Compound algal head consisting of many minor heads, each of which represents a single colony of algae. Specimen is from Tipton tongue of Green River formation in NE 1/4 NE 1/4 sec. 16, T.24 N., R. 102 W. Sweetwater County, Wyoming. 1923. Plate 44-B in U.S. Geological Survey. Professional paper 154. 1929.
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Irregular contact due to local scour and fill where the Bishop conglomerate rests on the beds of the Green River formation, which here make up the east spur of Little Mountain. Sweetwater County, Wyoming. 1930. Plate 39-A, with line to mark contact, U.S.Geological Survey Professional paper 185-I. 1936.
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Upper surface of a compound reef, which consists of alternating zones of algal and inorganic limestone; near base of Tipton tongue of Green River formation in NW 1/4 sec. 21, T.24 N., R. 101 W.: 75 % of natural size. Sweetwater County, Wyoming. 1923. Plate 43-A in U.S. Geological Survey. Professional paper 154. 1929.
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Tuberculate of papillate exterior of the type Chlorellopsis colonata reef, each tubercle represents a single colony of algae. From the base of the Laney shale member of the Green River formation, NE 1/4 sec. 27, T 25 N., R. 103 W. Sweetwater County, Wyoming. 1923. Plate 36-B in U.S. Geological Survey. Professional paper 154. 1929.
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Polished specimen of moderately rich oil shale; shows regularly space layers of calcite filled glauberite (?) cavities; natural size, from Green River, Sweetwater County, Wyoming. 1924. Plate 14-B in U.S. Geological Survey. Professional paper 158. 1930.
    map background search result map search result map Compound algal head consisting of many minor heads, each of which represents a single colony of algae. Sweetwater County, Wyoming. 1923. Tuberculate of papillate exterior of the type Chlorellopsis colonata reef, each tubercle represents a single colony of algae. Sweetwater County, Wyoming. 1923. Upper surface of a compound reef, which consists of alternating zones of algal and inorganic limestone. Sweetwater County, Wyoming. 1923. Polished vertical section of a compound algal head. Sweetwater County, Wyoming. 1923. Deposit formed around wood by chlorellopsis Reis, natural size. Sweetwater County, Wyoming. 1923. Polished specimen of algal pebbles showing details of internal structure. Sweetwater County, Wyoming. 1923. Photomicrograph of typical lobate colony of chlorellopsis coloniata reis. Sweetwater County, Wyoming. 1923. Photomicrograph of typical physico-chemical incrustation of calcite. Sweetwater County, Wyoming. 1923. Photomicrograph showing the association of the three principal types of structure found in the algae reefs of the Green River formation. Sweetwater County, Wyoming. 1923. Thin section of an oolite from the Laney shale member of the Green River formation on Shell Creek. Sweetwater County, Wyoming. 1923. North across Henrys Fork, showing the south end of Cedar Mountain with its thick capping of the Bishop conglomerate. Sweetwater County, Wyoming. 1930. Detail of the Bishop conglomerate on the south side of Little Mountain. Sweetwater County, Wyoming. 1930. Irregular contact due to local scour and fill where the Bishop conglomerate rests on the beds of the Green River formation. Sweetwater County, Wyoming. 1930. Compound algal head consisting of many minor heads, each of which represents a single colony of algae. Sweetwater County, Wyoming. 1923. Tuberculate of papillate exterior of the type Chlorellopsis colonata reef, each tubercle represents a single colony of algae. Sweetwater County, Wyoming. 1923. Upper surface of a compound reef, which consists of alternating zones of algal and inorganic limestone. Sweetwater County, Wyoming. 1923. Polished vertical section of a compound algal head. Sweetwater County, Wyoming. 1923. Deposit formed around wood by chlorellopsis Reis, natural size. Sweetwater County, Wyoming. 1923. Polished specimen of algal pebbles showing details of internal structure. Sweetwater County, Wyoming. 1923. Photomicrograph of typical lobate colony of chlorellopsis coloniata reis. Sweetwater County, Wyoming. 1923. Photomicrograph of typical physico-chemical incrustation of calcite. Sweetwater County, Wyoming. 1923. Photomicrograph showing the association of the three principal types of structure found in the algae reefs of the Green River formation. Sweetwater County, Wyoming. 1923. Thin section of an oolite from the Laney shale member of the Green River formation on Shell Creek. Sweetwater County, Wyoming. 1923. North across Henrys Fork, showing the south end of Cedar Mountain with its thick capping of the Bishop conglomerate. Sweetwater County, Wyoming. 1930. Detail of the Bishop conglomerate on the south side of Little Mountain. Sweetwater County, Wyoming. 1930. Irregular contact due to local scour and fill where the Bishop conglomerate rests on the beds of the Green River formation. Sweetwater County, Wyoming. 1930.