WorldCat Identities

Day, Warren C.

Overview
Works: 74 works in 127 publications in 1 language and 7,246 library holdings
Genres: Maps  Topographic maps  Geological maps 
Roles: Author, Editor, Contributor, Other
Publication Timeline
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Most widely held works by Warren C Day
A regional structural model for gold mineralization in the southern part of the Archean Superior Province, United States by P. K Sims( Book )

2 editions published in 1992 in English and held by 516 WorldCat member libraries worldwide

The Canadian segment of the Archean Superior province is a major world source of lode gold. The gold deposits occur in or near regional transcurrent and oblique slip-shear deformation zones that comprise a conjugate set to a northwest- directed compression of the Superior province. These structures provided permeable pathways for the flow of large volumes of auriferous fluid derived from an external source. Historic gold production from the United States segment of the Superior province is modest, but the close similarity in the geologic environment of the United States and Canadian segments suggests that large gold deposits should be present in the U.S.A. An occurrence model largely based on known parameters of gold mineralization in Canada suggests that the greenstone-granite terranes of the Wawa and Wabigoon sub-provinces in the United States are favorable for important gold deposits. The model suggests that gold mineralization took place during or later than the transcurrent faulting and that it took place contemporaneously with emplacement of silica-undersaturated intrusions. The faulting occurred late in the igneous-tectonic history of the Superior province, about 2,690 Ma. Extensive, intense alteration comprising carbonitization, silicification, and sulfidization accompanied the gold mineralization. The relationships between alteration minerals and mineralized veins suggest a close temporal relationship between the alteration and gold mineralization processes. The proposed occurrence model for gold mineralization and the available data suggest that two broad regions of greenstone in the Archean Superior province in north-central United States are particularly favorable for gold deposits: (1) the Upper Peninsula of Michigan, and (2) northeastern Minnesota. The Ishpeming greenstone belt of the Wawa subprovince in Michigan contains the important Ropes deposit and several other known gold occurrences, and the Vermilion district (Wawa subprovince) in northeastern Minnesota contains highly anomalous gold in soils and minor known bedrock occurrences. Transcurrent faults in both areas should be favorable sites for gold mineralization
Great Lakes tectonic zone : revisited by P. K Sims( Book )

2 editions published in 1993 in English and held by 515 WorldCat member libraries worldwide

The Great Lakes tectonic zone (GLTZ) is a Late Archean crustal boundary (paleosuture) at least 1,200 kilometers long that juxtaposes a Late Archean greenstone-granite terrane (Wawa subprovince of Superior province) on the north and an Early to Late Archean gneiss terrane (Minnesota River Valley subprovince) on the south. Recent mapping of an exposed seg- ment in the Marquette, Michigan, area provides new data on the vergence of the structure. These data necessitate reexami- nation of the COCORP seismic-reflection profiling in central Minnesota, which has been the principal basis for past views on the vergence of the GLTZ. In the Marquette area, the GLTZ is a northwest-striking mylonite zone about 2.3 kilometers wide that is superposed on previously deformed rocks of both Archean terranes. Shear zone walls strike N. 55°-60° W., and foliation in mylonite within the GLTZ strikes (average) N. 70° W. and dips 75° SW. A stretching lineation plunges 42° in a S. 43° E. direction. Hinges of tight to open (sheath?) folds of both Z- and S-symmetries plunge parallel to the lineation. The attitude of the lineation (line of tectonic transport and X finite strain axis), together with asymmetric kinematic indicators, indicates that collision at this locality was oblique; the collision resulted in dextral- thrust shear along the boundary, northwestward vergence, and overriding of the greenstone-granite terrane by the gneiss terrane. In contrast, the seismic-reflection profiling in central Minnesota has been interpreted by several investigators to indicate that the GLTZ is a shallowly north dipping (=30°) structure, which implies southward vergence on a north-dipping subduction zone. We suggest, alternatively, that the shallow- dipping reflectors in the seismic profiles indicate lithologic contacts related to recumbent and gently inclined folds (D₁), perhaps enhanced by ductile deformation zones, and that the Morris fault is indeed the GLTZ. The Morris fault strikes about N. 70° E., dips steeply southeastward, is transparent in seismic profiles, appears to be narrow, and coincides with the inferred position of the GLTZ as shown on earlier maps. The oblique collision along northwest-trending segments of the GLTZ would be expected to produce dextral transpression across a large region north of the GLTZ, and may have produced an early nappe-forming event (D₁) as well as younger upright folds (D₂), and as a later, more brittle event, the numerous dextral faults and conjugate sinistral faults that are widespread in the Wawa and adjacent subprovinces
Strategic and critical minerals in the midcontinent region, United States( Book )

2 editions published in 1992 in English and held by 498 WorldCat member libraries worldwide

Geologic map of the Big Delta B-1 quadrangle, east-central Alaska by Geological Survey (U.S.)( )

6 editions published in 2007 in English and held by 463 WorldCat member libraries worldwide

Mineral resources of the Sweetwater Canyon Wilderness Study Area, Fremont County, Wyoming by Warren C Day( Book )

3 editions published in 1988 in English and held by 311 WorldCat member libraries worldwide

Recent U.S. Geological Survey studies in the Tintina Gold Province, Alaska, United States, and Yukon, Canada : results of a 5-year project( )

2 editions published in 2010 in English and held by 276 WorldCat member libraries worldwide

Mineral resource assessment of the U.S. portion of the International Falls 1° x 2° quadrangle, northern Minnesota by T. L Klein( Book )

1 edition published in 1997 in English and held by 271 WorldCat member libraries worldwide

Neodymium isotopic evidence for Early Proterozoic units in the Watersmeet Gneiss Dome, northern Michigan by Karin M Barovich( Book )

3 editions published in 1991 in English and held by 263 WorldCat member libraries worldwide

Tintina gold province study, Alaska and Yukon territory, 2002-2007 : understanding the origin, emplacement, and environmental signature of mineral resources by L. P Gough( )

2 editions published in 2007 in English and held by 258 WorldCat member libraries worldwide

Geologic field notes, geochemical analyses, and field photographs of outcrops and rock samples from the Big Delta B-1 quadrangle, east-central Alaska by Warren C Day( )

1 edition published in 2008 in English and held by 234 WorldCat member libraries worldwide

Geologic field notes and geochemical analyses of outcrop and drill core from mesoproterozoic rocks and iron-oxide deposits and prospects of Southeast Missouri by Warren C Day( )

2 editions published in 2014 in English and held by 233 WorldCat member libraries worldwide

Geologic map of the Kechumstuk fault zone in the Mount Veta area, Fortymile Mining District, east-central Alaska by Warren C Day( )

1 edition published in 2014 in English and held by 228 WorldCat member libraries worldwide

USGS mineral-resource assessment of Sagebrush focal areas in the western United States by David Frank( )

2 editions published in 2016 in English and held by 222 WorldCat member libraries worldwide

Geochemical data for historic mining areas, Central Western Slope, Colorado [computer file] by J. Thomas Nash( )

2 editions published in 2001 in Undetermined and English and held by 216 WorldCat member libraries worldwide

Geologic map of Precambrian rocks of the Hartville uplift, southeastern Wyoming by P. K Sims( )

3 editions published in 1999 in English and held by 215 WorldCat member libraries worldwide

Geologic map of the Big Delta B-2 quadrangle, east-central Alaska by Geological Survey (U.S.)( )

3 editions published in 2003 in English and held by 213 WorldCat member libraries worldwide

Gravity and aeromagnetic gradients within the Yukon-Tanana Upland, Black Mountain Tectonic Zone, Big Delta quadrangle, east-central Alaska by R. W Saltus( )

1 edition published in 2007 in English and held by 211 WorldCat member libraries worldwide

Geologic map of Precambrian rocks, Rawhide Buttes west quadrangle and part of Rawhide Buttes east quadrangle, Hartville uplift, Goshen and Niobrara counties, Wyoming by Geological Survey (U.S.)( )

2 editions published in 1999 in English and held by 187 WorldCat member libraries worldwide

Bedrock geologic map of the Yucca Mountain area, Nye County, Nevada by Geological Survey (U.S.)( )

2 editions published in 1998 in English and held by 175 WorldCat member libraries worldwide

 
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Alternative Names
Day, W. C.

Day, W. C. (Warren C.)

Languages
English (43)