Snowshoe Formation

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Journal Article
Published: 01 October 1988
Micropaleontology (1988) 34 (4): 289-315.
Journal Article
Published: 01 December 1980
Canadian Journal of Earth Sciences (1980) 17 (12): 1603-1608.
...Paul L. Smith Abstract The lithostratigraphic terminology of the type Snowshoe Formation of the John Day inlier is revised. The lower member is correlated with and renamed the Warm Springs Member. The middle and upper members are renamed the Schoolhouse and South Fork Members respectively. A local...
Series: GSA Special Papers
Published: 28 December 2018
DOI: 10.1130/2018.2540(10)
EISBN: 9780813795409
.... The andesites of the Jurassic Snowshoe Formation were poorly resolved and did not yield useful directions. TABLE 1. PALEOMAGNETIC SITE LOCATIONS AND SITE MEAN DIRECTIONS The paleomagnetic results discussed here also suggest that the Blue Mountains have experienced moderate-scale latitudinal...
FIGURES | View All (8)
Journal Article
Published: 01 June 1994
Canadian Journal of Earth Sciences (1994) 31 (6): 919-942.
.... Reference sections further illustrating the faunal associations that characterize the zones are designated in eastern Oregon (Snowshoe Formation) and northern British Columbia (Spatsizi Group). The Dactylioceratidae, Harpoceratinae, and Hildoceratinae provide the most important zonal indicators...
—Profile along axis of <b>Snowshoe</b> syncline at top of Oriskany <b>Formation</b>. Note...
Published: 01 January 1984
FIG. 16 —Profile along axis of Snowshoe syncline at top of Oriskany Formation. Note abrupt plunge angle change coincident with lineament.
Journal Article
Published: 01 March 1990
Canadian Journal of Earth Sciences (1990) 27 (3): 414-425.
... moins deux épisodes de déformation régionale (phases 2 et 3) ont affecté cette pile de roches composites. Le Groupe de Snowshoe a été déformé et métamophisé (phase 1) avant la formation de cette pile, et on ne trouve nulle part dans les terranes allochtones le témoignage de ces événements.Toutes les...
Journal Article
Published: 01 September 2013
Journal of Paleontology (2013) 87 (5): 818-825.
...Roy E. Plotnick; Benjamin F. Dattilo; Daniel Piquard; Jennifer Bauer; Joshua Corrie A bstract Strophomenid brachiopods have long been interpreted as “snowshoe” strategists, with their flattened concavo-convex valves providing resistance to foundering in very soft sediments. There has been a sharp...
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Field relationships. ( a ) Contact between the Spruce Brook <b>Formation</b> (Gand...
Published: 01 March 2006
Fig. 4.  Field relationships. ( a ) Contact between the Spruce Brook Formation (Gander) and the Storm Brook Formation (Red Cross Group, Exploits) at Storm Brook; C.R. van Staal and S. Cain for scale. ( b ) Red Cross Group, felsic volcaniclastic rocks of the Storm Brook Formation, north shore
Journal Article
Published: 03 July 2013
Geological Magazine (2014) 151 (1): 167-182.
...JUDY A. MASSARE; WILLIAM R. WAHL; MIKE ROSS; MELISSA V. CONNELY Abstract The Redwater Shale Member (Oxfordian) of the Sundance Formation was deposited in the foreland basin of the Cordillera during the last and largest marine transgression of the Jurassic in North America. One ichthyosaur...
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Journal Article
Published: 01 January 2012
Journal of Paleontology (2012) 86 (1): 51-59.
...Tae-Yoon Park; Duck K. Choi Abstract The trilobite family Shumardiidae is characterized by small size, lack of eyes, yoked librigenae, and a small number of thoracic segments. Here we report the successive occurrence of three middle Furongian shumardiid species from the Sesong Formation of Korea...
FIGURES | View All (5)
Journal Article
Journal: GSA Bulletin
Published: 01 April 2001
GSA Bulletin (2001) 113 (4): 536-540.
... Special Paper 346 . 159 – 178 . Larsen , D. , and Nelson , P.H. , 2000 , Stratigraphy, correlation, depositional setting, and geophysical characteristics of the Oligocene Snowshoe Mountain Tuff and Creede Formation in two cored boreholes , in Bethke , P.M. , and Hay , R.L...
Journal Article
Published: 01 November 2007
Journal of Paleontology (2007) 81 (6): 1486-1493.
...RONALD L. PARSLEY; COLIN D. SUMRALL Abstract An echinoderm fauna from the Lower Devonian (Lochkovian) Cravatt Member of the Bois d'Arc Formation near Clarita, Oklahoma, has yielded specimens of recumbent, essentially bilaterally symmetrical taxa which are similar to Ordovician genera but absent...
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Journal Article
Published: 13 March 2017
Geological Magazine (2018) 155 (5): 1190-1204.
...BERTRAND LEFEBVRE; RUDY LEROSEY-AUBRIL Abstract – A new solutan echinoderm, Pahvanticystis utahensi s gen. et sp. nov. is described from the upper part of the Weeks Formation (Guzhangian). The Cambrian (Series 3) succession of the central House Range in western Utah documents the early...
FIGURES | View All (4)
Journal Article
Journal: GSA Bulletin
Published: 01 March 2011
GSA Bulletin (2011) 123 (3-4): 507-533.
... from Middle Jurassic through Eocene time in northwestern Montana. The oldest deposits in the foreland basin system consist of relatively thin, regionally tabular deposits of the marine Ellis Group and fluvial-estuarine Morrison Formation, which accumulated during Bajocian to Kimmeridgian time. U-Pb...
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Series: GSA Special Papers
Published: 01 January 2006
DOI: 10.1130/2006.2410(02)
... of an unconformity and associated hiatus (e.g., South Fork Member of Snowshoe Formation; Fig. 4 ). A definite disconformity and hiatus of similar magnitude occurs in between Bajocian and upper Bathonian to lower Callovian strata in the Huayacocotla remnant of the San Pedro del Gallo terrane. Elsewhere in North...
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Series: GSA Field Guide
Published: 07 September 2016
DOI: 10.1130/2016.0044(01)
EISBN: 9780813756448
... the scientific drilling cores have yielded inconsistent results, likely due to contamination of ash beds by older volcaniclastic material. Lanphere (2000) had concluded that the maximum duration of Creede Formation sedimentation was 0.66 m.y., based on his age determinations for the Snowshoe Mountain Tuff...
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Series: AAPG Studies in Geology
Published: 01 January 2000
DOI: 10.1306/St46706C39
EISBN: 9781629810713
...-studied lacustrine deposits(upper Eocene Florissant and Oligocene Creede Formations)will be a primary focus because they represent two major types of lake basins that formed in the region during this time. The Florissant Formation was deposited in a lake basin formed by a blocked stream drainage (McElroy...
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Journal Article
Journal: Economic Geology
Published: 01 January 2016
Economic Geology (2016) 111 (1): 179-198.
..., and irregular replacement zones in the Neoproterozoic to Upper Cambrian dolostones of the Cunningham Formation. The main sulfides are galena, sphalerite, and minor amounts of pyrite, which have been partially or completely transformed into nonsulfide minerals by supergene processes. The main nonsulfide minerals...
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Journal Article
Journal: PALAIOS
Published: 01 December 2014
PALAIOS (2014) 29 (12): 652-668.
... of the uppermost Triassic carbonate ramp, the lowest Jurassic Ferguson Hill Member of the Sunrise Formation records a midshelf habitat dominated by previously unrecognized siliceous sponges for approximately two million years. In addition, the earliest Jurassic strata from the Pucara Group, central Peruvian Andes...
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