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Medicine Peak Quartzite

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Journal Article
Journal: Geology
Published: 01 October 1983
Geology (1983) 11 (10): 618-619.
Journal Article
Published: 01 December 1963
Journal of Sedimentary Research (1963) 33 (4): 938-943.
...Donald R. Lamb; Robert B. Johnson Abstract Natural percussion cones are found on cobbles and boulders of quartzite of the Medicine Peak Quartzite (Precambrian) in Wyoming. Similar cones have been duplicated in the laboratory on cobbles of Medicine Peak Quartzite and on pieces of plate...
Journal Article
Published: 01 April 1962
Rocky Mountain Geology (1962) 1 (1): 48.
...Brainerd Mears Abstract Periglacial polygons, 100 ft. above timberline, are restricted to soil in an alpine meadow on a diorite dike which cuts massive quartzite weathering to felsenmeer. The nets appear inactive because of lichen-covered surface blocks, a distinctive "A" soil horizon, deeply...
Journal Article
Published: 01 April 1962
Rocky Mountain Geology (1962) 1 (1): 21-29.
... and are characterized by pronounced "knob-and-kettle" topography and tills rich in crystalline constituents. More recent deposits at the base of Medicine Bow Peak, W. of the source of Libby Creek, have been considered by some workers as recent moraines, but are more likely protalus ramparts overlying latest Pinedale...
Journal Article
Published: 01 January 1998
Rocky Mountain Geology (1998) 33 (2): 259-277.
... Madre, MB = Medicine Bow Mountains, LM = Laramie Mountains, RH = Richeau Hills, LPSZ = Laramie Peak shear zone † z = zircon, s = sphene, a = apatite, b = baddeleyite, h = hornblende § (1) Premo and Van Schmus, 1989 ; (2) Snyder et al., 1995 ; (3) Cox et al., 1995 ; (4) Loucks et al., 1988...
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Series: Geological Society, London, Special Publications
Published: 01 January 2005
DOI: 10.1144/GSL.SP.2005.245.01.05
EISBN: 9781862394933
... Abstract The Laramie Peak shear system (LPSS) is a 10 km-thick zone of heterogeneous general shear (non-coaxial) that records significant tectonic regeneration of middle-lower crustal rocks of the Archean Wyoming province. The shear system is related to the 1.78–1.74 Ga Medicine Bow orogeny...
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Journal Article
Published: 01 January 2012
Rocky Mountain Geology (2012) 47 (1): 1-35.
... are penetratively deformed with disharmonic folding of the migmatitic layering and isoclinal folding of the quartz-rich layers. The quartzite units in the Collegiate Peaks are broadly associated with and locally grade into a heterogeneous metasedimentary unit comprising quartzofeldspathic gneiss, micaceous gneiss...
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Journal Article
Published: 01 January 2011
Rocky Mountain Geology (2011) 46 (2): 111-135.
... in the Medicine Bow Mountains of southeastern Wyoming. These shear zones are generally interpreted as a mid-crustal thrust system rotated to its present-day subvertical orientation during late-stage, orogen-scale folding. However, the map geometry, presence of large domains of S tectonites, and vertical mineral...
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Journal Article
Published: 01 January 2000
Rocky Mountain Geology (2000) 35 (1): 71-90.
... the Archean Wyoming province and Proterozoic Colorado province. The time of emplacement of the Horse Creek anorthosite complex coincides with late stages of the Medicine Bow orogeny, in which Proterozoic island arcs collided with the Wyoming province. The Horse Creek anorthosite complex was emplaced in a zone...
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Journal Article
Published: 01 September 2003
Journal of the Geological Society (2003) 160 (5): 655-676.
... that are open to question. These are (1) that the peak temperature and peak pressure of metamorphism necessarily coincide; (2) that zircon U–Pb ages correspond to the peak pressure of metamorphism; (3) that cooling tracks linearly with exhumation. Both theory (e.g. England & Thompson 1984 ; Platt &...
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Journal Article
Published: 01 November 2002
Journal of Sedimentary Research (2002) 72 (6): 760-774.
... the Mesozoic and Cenozoic, with peak paleotemperatures subsequently decreasing through time ( Fig. 2 ; Green et al. 2000 ). Figure 1 Location map of the study area in northwestern Ireland. Sampling of the Mullaghmore Formation was concentrated to two locations: the Mullaghmore Head and Kildoney...
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Series: Geological Society, London, Special Publications
Published: 01 January 2002
DOI: 10.1144/GSL.SP.2002.196.01.20
EISBN: 9781862394445
...) 184980, 378454 (Sandstone) 1.435(1613) 1.886(2120) 1.506(4159) 15 (29) 191 ± 8 (10.2) F9 Mourne Mts. (Down) 326850, 326277 Silurian (Quartzite) 1.339 (592) 1.366(604) 1.205 (6679) 40 (12) 197 ± 12 (4) GG3 nr. Cashel (Galway) 79610, 242400 Devonian (Granite) 0.687 (902) 0.679 (891...
FIGURES
Journal Article
Journal: Geosphere
Published: 01 August 2007
Geosphere (2007) 3 (4): 220-259.
... of Archean continents (Slave with Rae-Hearne, then Rae-Hearne with Superior) as well as smaller Archean continental fragments (Wyoming, Medicine Hat, Sask, Marshfield, Nain cratons). The resulting Trans-Hudson orogen was a collisional belt similar in scale to the modern Himalayas. It contains mainly reworked...
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Journal Article
Journal: AAPG Bulletin
Published: 01 May 1983
AAPG Bulletin (1983) 67 (5): 725-743.
...) values that are uniformly 1, and on supporting organic geochemical data from Paleozoic rocks from the Tendoy thrust sheet. Directly above and west of the Tendoy sheet lie formerly more deeply buried rocks of the Medicine Lodge thrust system. Their greater burial depth is indicated by higher conodont CAI...
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Journal Article
Published: 01 January 2014
Rocky Mountain Geology (2014) 49 (1): 61-74.
... of the Medicine Bow Mountains ( Mears, 2001 ). Both lakes are in glacial till overlying predominantly quartzite bedrock and receive nearly all of their hydrologic input from snowfall and associated warm-season surface and subsurface flow ( Mensing et al., 2012 ). Small bedrock-dominated watersheds and a short...
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Journal Article
Journal: AAPG Bulletin
Published: 01 September 1950
AAPG Bulletin (1950) 34 (9): 1826-1849.
...John L. Severson ABSTRACT A southeastward-plunging synclinal mountain ridge, capped by Mississippian rocks, rises from a base of Cambrian rocks in the Sunwapta Pass area. Detailed sections involving Silurian and Devonian rocks were studied from the Nigel Peak area on the north southward...
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Journal Article
Published: 01 October 2008
American Mineralogist (2008) 93 (10): 1620-1629.
... able 1. Sample characteristics Sample abbrev. Characteristics Density (g/cm 3 ) Water content Porosity (%) Average grain size (mm) * Not measured. Qmb White quartzite from Medicine Bow Range, Wyoming.
 Intergrown pure quartz with 1% zircon and rutile. 2.84 1630 H/10 6...
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Journal Article
Journal: Geosphere
Published: 01 June 2017
Geosphere (2017) 13 (3): 681-698.
... with paragneiss containing quartzite and calc-silicate rock. Structurally below the orthogneiss, some quartzites have multiple concordant populations of detrital-zircon grains as young as ca. 1700 Ma, while others have no zircon grains younger than ca. 2500 Ma. Structurally above the Archean gneiss...
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Journal Article
Published: 10 October 2003
Canadian Journal of Earth Sciences (2003) 40 (10): 1357-1374.
... subprovince, and two Archean terrains that may be allochthonous to the 3.0 Ga craton, (4) the Sierra Madre – Medicine Bow block, and (5) the Black Hills – Hartville block. A thick, fast lower crustal layer, imaged by Deep Probe, corresponds geographically with the Bighorn subprovince and may be an underplate...
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Journal Article
Journal: GSA Bulletin
Published: 01 July 2013
GSA Bulletin (2013) 125 (7-8): 1319-1337.
..., and deformation mechanism analyses of the northern mylonite zone of the eastern Medicine Bow Mountains. Mylonites of this zone record a complex deformation history, but the main deformation phase was sinistral/northwest-side-up oblique transpression. Evidence for southeast-side-up, dip-slip motion...
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