Publications
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Reconnaissance geologic map and geochronology, Talkeetna Mountains quadrangle, northern part of Anchorage quadrangle, and southwest corner of Healy quadrangle, Alaska
No abstract available.
Authors
Bela Csejtey, W. H. Nelson, D. L. Jones, Norman J. Silberling, R. M. Dean, M.S. Morris, M. A. Lanphere, James G. Smith, M.L. Silberman
Interaction of meteoric waters with magmas of the Boulder Batholith, Montana
No abstract available.
Authors
Robert I. Tilling
High temperature heat content and heat capacity of silicate glasses: experimental determination and a model for calculation
Knowledge of the thermodynamic properties of silicate melts is fundamental to quantitative characterization of igneous systems. This paper presents new data on one of these properties, heat content, for silicate glasses and supercooled silicate liquids and derives partial molar heat contents for the glasses. The high temperature heat contents of two FeO-rich synthetic silicate glasses and five gla
Authors
Charles R. Bacon
Composition and phase chemistry of sulfide globules in basalt from the Mid-Atlantic Ridge rift valley near 37°N lat
The electron microprobe was used to determine the bulk composition of immiscible sulfide globules trapped in the glass phase of 25 fresh submarine basalt samples from the Mid-Atlantic Ridge. Twenty-three samples represent a spectrum of primitive through differentiated tholeiites from the FAMOUS dive area; two are differentiated basalts from the Reykjanes Ridge. The analyzed globules range in diame
Authors
G. Czamanske, James G. Moore
Compositional variations of young basalts in the Mid-Atlantic Ridge rift valley near lat 36°49′N
Fifty acoustically positioned samples of fresh basalt were collected by the submersible Alvin from the median valley of the Mid-Atlantic Ridge during the French American Mid-Ocean Undersea Study (FAMOUS) in the summer of 1974. The samples show regular compositional variations from the center of the rift valley (central lava flows) out to the rift valley walls (flank lava flows). The central lava s
Authors
W.B. Bryan, James G. Moore
Earthquake-hazard map of the United States
[None]
Authors
Sylvester Theodore Algermissen, David M. Perkins
Earthquake prediction: A perspective for a national program
No abstract available.
Authors
Peter L. Ward