Publications
National Laboratories Program publications.
Filter Total Items: 1080
Paleozoic metasediments in the northern Ruby Mountains, Nevada Paleozoic metasediments in the northern Ruby Mountains, Nevada
New evidence indicates that high-grade regionally metamorphosed marble and quartzite in the northern Ruby Mountains are Paleozoic strata. Correlation is based on a match of the lithologic sequence to strata of Cambrian to Devonian age in nearby areas; particularly diagnostic is a brown dolomite at the base of the Cambrian carbonate sequence. The metamorphic complex contrasts with...
Authors
Keith A. Howard
Structural implications of an offset Early Cretaceous shoreline in northern California Structural implications of an offset Early Cretaceous shoreline in northern California
Recognition of a nonmarine to marine transition in sedimentary rocks at Glade Creek and Big Bar in the southern Klamath Mountains permits reconstruction of the approximate position of a north-trending Early Cretaceous (Valanginian) shoreline. At the southern end of the Klamath Mountains, the shoreline is displaced 60 mi or more to the east by a west-northwest-trending fault zone. South...
Authors
D. L. Jones, W. P. Irwin
Preliminary geologic map of the Mt. Diablo - Byron area, Contra Costa, Alameda, and San Joaquin Counties, California Preliminary geologic map of the Mt. Diablo - Byron area, Contra Costa, Alameda, and San Joaquin Counties, California
No abstract available.
Authors
Earl E. Brabb, H.S. Sonneman, J.R. Switzer
Geologic map of Late Cenozoic deposits, Santa Clara County, California Geologic map of Late Cenozoic deposits, Santa Clara County, California
This map is the first of several in the San Francisco Bay region showing the distribution and differentiation of the late Cenozoic alluvial, estuarine, and volcanic deposits. The sedimentary deposits of gravel, sand, silt, and clay were separated into geologic map units on the basis of their post-depositional soil development, texture, and geomorphology. Some of the geologic units are...
Authors
E. J. Helley, E. E. Brabb
Stratigraphy and paleontology of the revised type section for the Tahkandit Limestone (Permian) in east-central Alaska Stratigraphy and paleontology of the revised type section for the Tahkandit Limestone (Permian) in east-central Alaska
No abstract available.
Authors
Earl E. Brabb, Richard E. Grant
Preliminary geologic map of western Sonoma County and northernmost Marin County, California Preliminary geologic map of western Sonoma County and northernmost Marin County, California
No abstract available.
Authors
M. C. Blake, R. H. Wright, C. M. Wentworth
Surface faulting and related effects Surface faulting and related effects
No abstract available.
Authors
Manuel G. Bonilla
Geology of the Klamath Mountains Geology of the Klamath Mountains
No abstract available.
Authors
W. P. Irwin
Preliminary geologic map of the central Santa Cruz mountains, California Preliminary geologic map of the central Santa Cruz mountains, California
No abstract available.
Authors
E. E. Brabb
Mineral resources of the Agua Tibia Primitive Area, California Mineral resources of the Agua Tibia Primitive Area, California
No abstract available.
Authors
William P. Irwin, Robert C. Greene, Horace K. Thurber
Geologic map of White Pine County, Nevada Geologic map of White Pine County, Nevada
No abstract available.
Authors
Richard K. Hose, M. Clark Blake
Geologic interpretation of reconnaissance aeromagnetic survey of northeastern Alaska Geologic interpretation of reconnaissance aeromagnetic survey of northeastern Alaska
Aeromagnetic reconnaissance of northeastern Alaska in 1965 covered approximately 100,000 square miles, from lat 64° N. to the Arctic Ocean and from the Alaska-Yukon boundary to long 148°30' W. A magnetic contour map was compiled from data from the 1965 survey and earlier surveys. On the basis of these data, northeastern Alaska may be divided into five areas, each having a distinct...
Authors
William Peters Brosge, Earl E. Brabb, Elizabeth R. King