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Firehole Bed

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Journal Article
Journal: Geology
Published: 01 June 2010
Geology (2010) 38 (6): 527-530.
...M. Elliot Smith; K.R. Chamberlain; B.S. Singer; A.R. Carroll Abstract U-Pb ages of zircon from the Firehole and Analcite ash beds in the Eocene Green River Formation (Wyoming, United States) are indistinguishable from 40 Ar/ 39 Ar ages of sanidine after adjusting the latter to the astronomically...
FIGURES
Journal Article
Journal: GSA Bulletin
Published: 01 May 2003
GSA Bulletin (2003) 115 (5): 549-565.
... and alkaline fluids as the lake shrank. The Firehole tuff (sample FC-2), or First tuff ( Culbertson, 1961 ) was collected from the lower part of the Wilkins Peak Member of the Green River Formation at Firehole Canyon ( Table 1 ). It is stratigraphically ∼60 m above the base of the Wilkins Peak Member (bed...
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Journal Article
Journal: Geosphere
Published: 22 November 2017
Geosphere (2017) 14 (1): 115-140.
... ). Where cemented, the Bishop Conglomerate is crudely bedded, and contains lenses of cross-stratified sandstone. Paleocurrents measured from imbricated gravel clasts and trough cross- strata at Firehole Canyon located north of Miller Mountain show a predominant northeastward paleoflow direction ( Fig. 4...
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Journal Article
Published: 01 April 2004
Scottish Journal of Geology (2004) 40 (1): 73-81.
... covered by the boreholes general correlation can be made of the chert-bearing unit, and also sandstone and shale units. General thicknesses of units are similar in the three boreholes. However, there is no bed-to-bed correlation of the cherts or other lithologies, neither is there a correlation...
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Journal Article
Journal: GSA Bulletin
Published: 01 January 2010
GSA Bulletin (2010) 122 (1-2): 236-252.
... geochronology constrains the duration of the isotopic shift to ≤∼200,000 years. This change coincides with a sudden change in lake type, from balanced-filled in the lower LaClede Bed to overfilled in the upper LaClede Bed, as well as an increase in the proportion of calcitic (>80% calcite out of total...
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Journal Article
Journal: GSA Bulletin
Published: 01 January 2008
GSA Bulletin (2008) 120 (1-2): 54-84.
...M. Elliot Smith; Alan R. Carroll; Brad S. Singer Abstract Numerous 40 Ar/ 39 Ar experiments on sanidine and biotite from 22 ash beds and 3 volcaniclastic sand beds from the Greater Green River, Piceance Creek, and Uinta Basins of Wyoming, Colorado, and Utah constrain ∼8 m.y. of the Eocene Epoch...
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Image
Bishop Conglomerate and Browns Park Formation field photographs from southw...
in > Geosphere
Published: 22 November 2017
Figure 5. Bishop Conglomerate and Browns Park Formation field photographs from southwestern Wyoming and northeastern Utah. (A) Well-cemented, horizontally bedded Bishop Conglomerate overlies gently dipping strata of the Eocene Green River Formation at Firehole Canyon (location FC in Fig. 4
Journal Article
Published: 26 November 2003
Canadian Journal of Earth Sciences (2003) 40 (11): 1697-1712.
... in samples of cemented sinter from the outflow streams of Tangled Creek near White Dome Geyser on Firehole Lake Drive. This creek is fed from continuously erupting springs in Black Warrior and Firehole lakes (Figs.  8 , 14 ). Specimens were also collected from bedded sinter exposures in the banks...
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Journal Article
Published: 01 June 2010
Journal of Sedimentary Research (2010) 80 (6): 492-514.
... of the deltaic and fluvial sediments of the volcaniclastic Bridger and Washakie formations and the Sand Butte Bed of the Laney Member. The transition from the deposition of lacustrine to alluvial sediment also records a reversal in the direction of drainage across the basin that occurred between 49.5 Ma and 48.9...
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Journal Article
Journal: PALAIOS
Published: 01 January 2010
PALAIOS (2010) 25 (5): 287-298.
... Laclede beds of the LM are consistent with the lake-level fluctuation model constructed for the WB, which was based on independent, stratigraphic, isotopic, and sedimentological data. Ostracode response to changing lake conditions within the LM demonstrates an environmental tracking (i.e., coordinated...
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Image
Simplified geologic map of the Greater Green River Basin and surrounding ar...
Published: 01 January 2010
Community College, SB—Sand Butte, GD—Grainery Draw, SC—Sage Creek, WB1—Arco Oil and Gas Washakie Basin #1 core, WB2—Arco Oil and Gas Washakie Basin #2 core, and CCR—U.S. Department of Energy Currant Creek Ridge core. Also shown is a measured section at Firehole Canyon (FC) from Rhodes (2002) . Previously
Journal Article
Journal: GSA Bulletin
Published: 01 January 2013
GSA Bulletin (2013) 125 (1-2): 216-228.
... composite bed sets of the alluvial association (A–I), and 34 major lake cycles. The 40 Ar/ 39 Ar ages of six tuffs within the Wilkins Peak interval, including the Sixth, Layered, Main, Grey, Boar, and Firehole Tuffs, have been recently recalculated to account for the new 28.201 Ma value for the Fish Canyon...
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Journal Article
Journal: Geology
Published: 01 July 2003
Geology (2003) 31 (7): 593-596.
... decreases northward to 13 at Boar's Tusk. Below the H marker bed, many cycles terminate northward by lateral gradation into lake-margin facies ( Fig. 4 ), rather than by onlap of a pre–Wilkins Peak Member surface as previously proposed ( Roehler, 1993 ). In contrast, most cycles above this marker can...
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Journal Article
Published: 01 November 2006
Journal of Sedimentary Research (2006) 76 (11): 1197-1214.
... and became progressively less so after that time. Based on structural and stratigraphic observations, a period of increased tectonic uplift commenced concurrent with deposition of the lower Wilkins Peak Member. The distribution of evaporite beds also reflects this pattern of differential accommodation...
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Journal Article
Journal: Geology
Published: 01 July 2017
Geology (2017) 45 (7): 639-642.
..., occurring between evaporative facies of the Wilkins Peak Member (WPM) and fluctuating-profundal facies of the lower LaClede Bed (LLB) of the Laney Member. The WPM contains numerous Na-carbonate evaporite beds but lacks any fossil evidence for lacustrine macrofauna ( Roehler, 1992 ; Pietras and Carroll...
FIGURES
Journal Article
Published: 01 January 2010
Rocky Mountain Geology (2010) 45 (1): 73-81.
...-bearing rocks that were apparently Cretaceous in age, sufficient evidence for some geologists that the lignites were not all one enormous formation. During 1868, Hayden himself discovered beds in northeastern Utah that contained lignites and were undoubtedly Cretaceous ( Hayden, 1869 ; Foster, 1994 , p...
FIGURES
Journal Article
Published: 01 April 2017
Journal of Sedimentary Research (2017) 87 (4): 406-423.
... time periods ( Pietras et al. 2003 ; Pietras and Carroll 2006 ). Organic-carbon rich mudstone (oil-shale) beds provide particularly distinctive markers of lake deepening episodes ( Carroll and Bohacs 2001 ) and have in some cases been correlated across distances of > 100 km ( Pietras and Carroll...
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Journal Article
Journal: GSA Bulletin
Published: 01 May 2012
GSA Bulletin (2012) 124 (5-6): 870-885.
... of the Uinta Basin that spans from the Horse Bench Sandstone marker bed to the limestone and sandstone facies of the Green River Formation ( Fig. 2 ). The Fat and Oily tuffs can be correlated to his section based on their meter levels with respect to the Horse Bench Sandstone and the saline facies–limestone...
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Journal Article
Journal: GSA Bulletin
Published: 01 September 2003
GSA Bulletin (2003) 115 (9): 1122-1132.
.... Occasionally, the gravel units contain bar accretion surfaces, trough cross-bedding in the sandier fractions, and clast imbrication. Most accounts interpret the gravels as having been deposited prior to, and perhaps immediately prior to, the earliest deformation along the Sevier fold-thrust belt ( Heller...
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Journal Article
Published: 01 September 2003
Journal of Sedimentary Research (2003) 73 (5): 806-823.
... is low in this interval as a result of authigenic mineral precipitation (pore occlusion). Three varieties of siliceous deposits are present: (1) pink and black siliceous sinter that exhibits distorted bedding related to pervasive diagenetic alteration ( Fig. 4C ), (2) white siliceous sinter that exhibits...
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