Publications
Publications from the staff of the Geology, Minerals, Energy, and Geophysics Science Center
Filter Total Items: 2350
Geologic map of the southern part of the Mount Hayes quadrangle, Alaska
No abstract available.
Authors
Warren J. Nokleberg, N. R. Albert, G. C. Bond, P. L. Herzon, R. T. Miyaoka, W. H. Nelson, D.H. Richter, T. E. Smith, J. H. Stout, Warren Yeend, R. E. Zehner
Map showing tracklines of high-resolution uniboom seismic-reflection profiles collected August 31, through September 21, 1980, in the Chukchi Sea
No abstract available.
Authors
Arthur Grantz, D. A. Dinter, Edwin Hill, T. E. Chase
Evaluation of potential surface faulting and other tectonic deformation
No abstract available.
Authors
M. G. Bonilla
Mid-Cretaceous radiolarians in Perapedhi Formation
No abstract available.
Authors
W. P. Irwin, B. L. Murchey, D. L. Jones, S.A. Kling
In the southwest: Tectonic evolution reviewed
No abstract available.
Authors
D. M. Miller, Keith A. Howard, M. D. Carr
Geology of a subduction complex in the Franciscan assemblage of northern California
No abstract available.
Authors
M. Clark Blake, A. S. Jayko, D. G. Howell
A geologic reconnaissance of the Cycladic blueschist belt, Greece
The Cycladic blueschist belt consists of two distinctive segments separated by a broad zone of superposed granitic and high-temperature metamorphic rocks. The northern segment contains early metamorphic fold axes and parallel glaucophane lineations that trend ∼060° with a progressive increase in metamorphism toward the southeast. The southern segment contains similar fold axes and glaucophane line
Authors
M. Clark Blake, Michel Bonneau, Jacques Geyssant, J.R. Kienast, Claude Lepvrier, Henri Maluski, Dimitrios Papanikolaou
The Franciscan assemblage and related rocks in northern California: A reinterpretation
No abstract available.
Geologic transect of the northern Diablo Range, California
No abstract available.
Authors
M. Clark Blake
Proterozoic zircon from augen gneiss, Yukon-Tanana Upland, east-central Alaska
U-Th-Pb analyses of zircons from an ortho-augen gneiss body in the Yukon-Tanana Upland of east-central Alaska yield strong evidence for the presence of early Proterozoic material in this area. U-Pb data define a chord that intersects concordia at about 2,300 and 345 m.y. We consider two interpretations: (1) the protolith was intruded during the Proterozoic and was subsequently metamorphosed in the
Authors
John N. Aleinikoff, Cynthia Dusel-Bacon, Helen L. Foster, Kiyoto Futa