Publications
Publications from the staff of the Geology, Minerals, Energy, and Geophysics Science Center
Filter Total Items: 2532
Aminostratigraphy and oxygen isotope stratigraphy of marine terrace deposits, Palos Verdes Hills and San Pedro areas, Los Angeles County, California Aminostratigraphy and oxygen isotope stratigraphy of marine terrace deposits, Palos Verdes Hills and San Pedro areas, Los Angeles County, California
No abstract available.
Authors
D.R. Muhs, G. H. Miller, J. F. Whelan, G. L. Kennedy
Predicting sizes of undiscovered mineral deposits; an example using mercury deposits in California Predicting sizes of undiscovered mineral deposits; an example using mercury deposits in California
A critical part of the exploration for mineral deposits or of quantitative mineral resource assessments is the estimation of how large undiscoveredeposits might be. Typically, this problem is addressed using grade and tonnage models in which a major source of variation in possible sizes is accounted for by the differences in types of deposits (Cox and Singer, 1986; Mosier and Page, 1988...
Authors
C. F. Chung, Donald A. Singer, W. David Menzie
National Earthquake Hazards Reduction Program, summaries of technical reports; Volume XXXIII National Earthquake Hazards Reduction Program, summaries of technical reports; Volume XXXIII
No abstract available.
Authors
Muriel L. Jacobson
Incorporation and redistribution of locally derived lithic fragments within a pyroclastic flow Incorporation and redistribution of locally derived lithic fragments within a pyroclastic flow
The lower Miocene Peach Springs Tuff exposed in the Newberry Mountains, California, was deposited within a paleovalley trending S65°W. Exposures within the paleovalley contain lithic breccia intercalated with ash-rich ignimbrite. The clast assemblage of the lithic breccias matches the rock types of the paleovalley walls, and therefore the clasts were not derived from a distant eruptive...
Authors
D.C. Buesch
Regional view in the search for kuroko deposits of the Hokuroku District, Japan Regional view in the search for kuroko deposits of the Hokuroku District, Japan
No abstract available.
Authors
Donald A. Singer, Ryoichi Kouda
Impact origin of the Avak Structure, Arctic Alaska, and genesis of the Barrow gas fields Impact origin of the Avak Structure, Arctic Alaska, and genesis of the Barrow gas fields
Geophysical and subsurface geologic data suggest that the Avak structure, which underlies the Arctic Coastal Plain 12 km southeast of Barrow, Alaska, is a hypervelocity meteorite or comet impact structure. The structure is a roughly circular area of uplifted, chaotically deformed Upper Triassic to Lower Cretaceous sedimentary rocks 8 km in diameter that is bounded by a ring of...
Authors
C.E. Kirschner, Arthur Grantz, M. W. Mullen
Mesozoic and Cenozoic intrusions and batholiths of the Circum-Pacific region as analogues of pre-Phanerozoic batholiths: A summary Mesozoic and Cenozoic intrusions and batholiths of the Circum-Pacific region as analogues of pre-Phanerozoic batholiths: A summary
No abstract available.
Authors
David A. Brew
The cycling of iron and manganese in the water column of Lake Sammamish, Washington The cycling of iron and manganese in the water column of Lake Sammamish, Washington
Processes controlling the distribution and mobility of Fe and Mn in Lake Sammamish, Washington, a seasonally anoxic lake, are deduced from a year‐long monthly study of physical, chemical, and biological parameters in the lake. Inventories of dissolved Mn and Fe in the bottom waters increase as the redox potential lowers with dissolved Mn inventories during stagnation being much larger...
Authors
Laurie S. Balistrieri, J.W. Murray, B. Paul
The biogeochemical cycling of trace metals in the water column of Lake Sammamish, Washington: Response to seasonally anoxic conditions The biogeochemical cycling of trace metals in the water column of Lake Sammamish, Washington: Response to seasonally anoxic conditions
Total acid‐soluble and dissolved Cd, Co, Cr, Cu, Ni, Pb, and Zn concentrations in the water column of a seasonally anoxic lake (Lake Sammamish, Washington) were measured on a monthly basis during the course of a year. These data, in conjunction with Fe, Mn, sulfide, and nutrient data, are used to assess the biochemical processes controlling the distribution of trace metals in the lake...
Authors
Laurie S. Balistrieri, J.W. Murray, B. Paul
Uranium-series age estimates of corals from Quaternary marine sediments of southern Florida Uranium-series age estimates of corals from Quaternary marine sediments of southern Florida
No abstract available.
Authors
D.R. Muhs, Barney J. Szabo, L. McCartan, P.B. Maat, C. A. Bush, R. B. Halley
Introduction to special section on the California-Arizona crustal transect: CACTIS, Part 3 Introduction to special section on the California-Arizona crustal transect: CACTIS, Part 3
The CACTIS (California‐Arizona Crustal Transect Interim Synthesis) workshop in May 1988 brought researchers together in Flagstaff, Arizona, to discuss the geologic evolution and crustal structure of the southern Cordillera between the San Andreas fault in southeastern California and the Colorado Plateau in Arizona [Sass et al., 1988]. The first set of papers resulting from the workshop...
Authors
R.W. Simpson, Keith A. Howard, Gordon B. Haxel