scholarly journals Drill-hole data, drill-site geology, and geochemical data from the study of Precambrian uraniferous conglomerates of the Medicine Bow Mountains and Sierra Madre of southeastern Wyoming

1981 ◽  
Author(s):  
K.E. Karlstrom ◽  
R.S. Houston ◽  
T.G. Schmidt ◽  
D. Inlow ◽  
A.J. Flurkey ◽  
...  
Keyword(s):  
Drill Hole ◽  
Geochemical Data ◽  
Medicine Bow Mountains ◽  
Sierra Madre ◽  
Drill Site

An early Proterozoic volcanic arc succession in southeastern Wyoming

1984 ◽  
Vol 21 (4) ◽  
pp. 415-427 ◽  
Author(s):  
Kent C. Condie ◽  
Craig A. Shadel
Keyword(s):  
Fractional Crystallization ◽  
Tectonic Setting ◽  
Volcanic Rocks ◽  
Geochemical Data ◽  
Alkaline Basalt ◽  
Calc Alkaline ◽  
Early Proterozoic ◽  
Enriched Mantle ◽  
Sierra Madre ◽  
Felsic Volcanic

The Green Mountain Formation of early Proterozoic age in the Sierra Madre Range of southeastern Wyoming comprises a bimodal mafic and felsic volcanic assemblage. The rocks, which are chiefly breccias, agglomerates, flows, and volcaniclastic sediments, represent both subaerial and submarine eruptions and in part were redeposited in fluvial and nearshore marine environments. Volcanic rocks are clearly calc-alkaline in character and share a large number of geochemical features in common with continental-margin arcs or evolved oceanic-arc systems.The low Mg numbers and Ni contents of the basalts require 30–40% olivine fractional crystallization, and the high contents of the most incompatible elements, high (La/Sm)N ratios, and low Zr/Nb ratios require an undepleted or enriched mantle source. Geochemical data are consistent with an origin for the felsic volcanics and associated Encampment River granodiorite by shallow fractional crystallization of calc-alkaline basalt in a tectonic setting similar to modern arc systems. The near absence of andesites may reflect the retention of andesitic magma in crustal reservoirs during fractional cyrstallization.

scholarly journals Progress report on the study of radioactive quartz-pebble conglomerate of the Medicine Bow Mountains and Sierra Madre, southeastern Wyoming

1979 ◽  
Author(s):  
Robert Stroud Houston ◽  
George A. Desborough ◽  
K.E. Karlstrom ◽  
W.N. Sharp ◽  
Paul J. Graff
Keyword(s):  
Progress Report ◽  
Medicine Bow Mountains ◽  
Sierra Madre

Condition assessment of the drill hole before pipeline pulling

2020 ◽  
Vol 1 ◽  
pp. 96-101
Author(s):  
Z.Z. Sharafutdinov ◽  
◽  
I.R. Islamov ◽  
V.A. Gruzdev ◽  
R.A. Kapaev ◽  
...  
Keyword(s):  
Drill Hole ◽  
Condition Assessment

La Sierra Madre Oriental como reservorio de diversidad vegetal

2018 ◽  
Vol 21 (88) ◽  
Author(s):  
María Magdalena Salinas Rodríguez
Keyword(s):  
Sierra Madre Oriental ◽  
Sierra Madre
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