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Gilman Sandstone

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Journal Article
Published: 01 October 2021
Rocky Mountain Geology (2021) 56 (2): 51–67.
... is in the upper Coffee Pot Member of the Dyer Formation, and thus the overlying Gilman Sandstone is Carboniferous. * Correspondence should be addressed to: over@geneseo.edu 21 02 2021 10 05 2021 29 05 2021 © 2021 University of Wyoming 2021 University of Wyoming Gold Open Access...
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Geologic and geographic context for studied sections, including simplified ...
Published: 01 June 2022
Figure 1. Geologic and geographic context for studied sections, including simplified graphic log of the Paleozoic stratigraphy of the White River uplift (aka “The Flat Tops”) region at left. Units include the Leadville Limestone, Gilman Sandstone (signified by ‘G’), Dyer Formation, Parting
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Stratigraphic context for samples, including simplified graphic logs and po...
Published: 01 June 2022
for Glenwood Canyon is from Hauck ( 1954 ), Bass and Northrop ( 1963 ), Campbell ( 1966 ), and Strauss ( 2006 ). Abbreviations: Lead. = Leadville Limestone, Gil. = Gilman Sandstone, DDS = detrital dolomite siltstone.
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Composite  87 Sr/ 86 Sr chemostratigraphy of the Dyer Formation succession ...
Published: 01 June 2022
uplift (the Flat Tops) succession relative to the thickness of the succession at Glen Park Station, Missouri, where this portion of the curve is derived. Abbreviations: Lead. = Leadville Limestone, Gil. = Gilman Sandstone.
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Photomicrographs of representative siliciclastic-grain-bearing lithofacies ...
Published: 01 June 2022
Figure 3. Photomicrographs of representative siliciclastic-grain-bearing lithofacies of the Chaffee Group, arranged in descending stratigraphic order. A, Gilman sandstone with bimodal sorting of very well-rounded medium- to coarse-grained quartz in a coarse silt to very fine sand matrix
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δ 13 C chemostratigraphy of measured sections in the White River uplift (th...
Published: 01 June 2022
at a smaller vertical scale than Dyer data. Abbreviations: Lead. = Leadville Limestone, Gil. = Gilman Sandstone.
Journal Article
Published: 01 June 2022
Rocky Mountain Geology (2022) 57 (1): 23–33.
...Figure 1. Geologic and geographic context for studied sections, including simplified graphic log of the Paleozoic stratigraphy of the White River uplift (aka “The Flat Tops”) region at left. Units include the Leadville Limestone, Gilman Sandstone (signified by ‘G’), Dyer Formation, Parting...
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Journal Article
Published: 01 June 2022
Rocky Mountain Geology (2022) 57 (1): 1–21.
...Figure 3. Photomicrographs of representative siliciclastic-grain-bearing lithofacies of the Chaffee Group, arranged in descending stratigraphic order. A, Gilman sandstone with bimodal sorting of very well-rounded medium- to coarse-grained quartz in a coarse silt to very fine sand matrix...
FIGURES | View All (7)
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Representative lithofacies in the Devonian–Carboniferous succession from th...
Published: 01 June 2022
the Gilman Sandstone (top of image); sand-filled cracks interpreted as karst infill. B, Cross-sectional view of a laminated detrital dolomite siltstone from the basal Coffee Pot Member of the Dyer Formation at Bison Lake, which locally bears quartz silt in sub-mm to mm-thick stringers or as suspended
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Figure 12. (A) Clinetop Bed at Red Cliff. Note planar hardground surface (H...
Published: 01 June 2003
Member at Gilman. Note Devonian white quartz sandstone at top of photograph. Scale has 10 cm divisions.
Series: Economic Geology Monograph Series
Published: 01 January 1990
DOI: 10.5382/Mono.07.03
EISBN: 9781629490021
...Abstract Abstract The Cambrian through Mississippian stratigraphic sequence of central Colorado comprises a thin seqnence (300-400 m thick) of interbedded quartz sandstones, carbonates, and minor shales separated by several unconformities. Extensive Paleozoic dolomitization of the carbonate...
Series: Economic Geology Monograph Series
Published: 01 January 1990
DOI: 10.5382/Mono.07.20
EISBN: 9781629490021
.... Fission-track dates of zircon from Proterozoic granite and Penn-sylvanian sandstone near the mining district are much older, do not significantly reflect a Tertiary thermal event, and show that the Aspen mining district is not marked by a regional paleothermal anomaly. In that respect the Aspen district...
Series: Society of Economic Geologists Guidebook Series
Published: 01 January 1988
DOI: 10.5382/GB.02
EISBN: 9781934969557
...Abstract Abstract On the north side of the town of Minturn, the Leadville, Gilman, and Dyer Formations crop out. These rocks are most accessible in two places: in readouts along U.S. Highway 24, and in roadcuts along the railroad (Fig. 2). The northeast wall of the Eagle River canyon...
Journal Article
Journal: AAPG Bulletin
Published: 01 February 1970
AAPG Bulletin (1970) 54 (2): 313–325.
..., or interbedded dolomite and sandstone ( Fig. 3 ). Distribution and thickness of the unit are shown on Figure 6 . The contact of the Coffee Pot Member and the underlying Broken Rib Member is conformable, commonly gradational or intertonguing. The contact of the Coffee Pot with the overlying Gilman Sandstone...
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Journal Article
Journal: AAPG Bulletin
Published: 01 April 1933
AAPG Bulletin (1933) 17 (4): 353–374.
... underlain by one of the Ordovician formations. In the region bordering the Gore Range between Colorado River and Leadville it is very siliceous. Here it is predominantly quartzite, but contains some interbedded shales and sandstones. Near Gilman and farther north the base of the Parting is marked by white...
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Journal Article
Published: 14 August 2013
Canadian Journal of Earth Sciences (2013) 50 (10): 1007–1018.
... limestone, quartz sandstone, and shale ( Figs. 4A–4D ). Graded bedding is observed in some of the sandy limestone and quartz sandstone units along the Gilman River ( Fig. 4C ). Trettin (1994) interpreted similar-looking rock types in the Henrietta Nesmith Glacier area to represent Ta-c turbidite divisions...
Journal Article
Journal: AAPG Bulletin
Published: 01 February 1966
AAPG Bulletin (1966) 50 (2): 251–268.
.... This replacement most likely occurred after lithification of the sediments. With few exceptions, the kaolinite in the Gilman section appears to be more abundant in the sandstone than in either the shale or carbonate rocks. It is possible that much of this kaolinite was developed by the leaching action...
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Journal Article
Published: 18 March 2011
Canadian Journal of Earth Sciences (2011) 48 (3): 661–694.
...), sandwiching a 2 m thick, finely laminated tuff ( Fig. 4 d ). Strong silicification highlights bedding in the tuff. The upper contact of the Gilman Formation is exposed northwest of the Bruneau Mine over 140 m, where perlitic rhyolites are conformably overlain by bedded sandstone of the Blondeau Formation...
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Journal Article
Journal: AAPG Bulletin
Published: 01 April 1934
AAPG Bulletin (1934) 18 (4): 531–542.
... in the deposits, the land areas certainly could not have been high. Sandstones are found only at the base of the Mississippian, and are developed only in the northern portions of the Mosquito and Sawatch ranges. In general, the deposits consist of limestones which have a surprising lithologic similarity over...
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Journal Article
Journal: GSA Bulletin
Published: 01 June 2003
GSA Bulletin (2003) 115 (6): 695–713.
... Member at Gilman. Note Devonian white quartz sandstone at top of photograph. Scale has 10 cm divisions. ...
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