Edward A du Bray (Former Employee)
Science and Products
Filter Total Items: 16
Filter Total Items: 100
The Eocene Big Timber stock, south-central Montana: Development of extensive compositional variation in an arc-related intrusion by side-wall crystallization and cumulate glomerocryst remixing The Eocene Big Timber stock, south-central Montana: Development of extensive compositional variation in an arc-related intrusion by side-wall crystallization and cumulate glomerocryst remixing
The Eocene Big Timber stock in the Crazy Mountains of south-central Montana is an elliptical, 8 by 13 km, compositionally and texturally diverse composite intrusion with a well-developed radial dike swarm. A sharp intrusive contact separates its two phases: the core of the intrusion is fine-grained quartz monzodiorite, and the volumetrically dominant remainder is composed of medium...
Authors
du Bray, S. S. Harlan
Area adjacent to the Turkey Creek caldera, Cochise County, Arizona— Analytic data and geologic sample catalog Area adjacent to the Turkey Creek caldera, Cochise County, Arizona— Analytic data and geologic sample catalog
No abstract available.
Authors
E. A. Du Bray, John S. Pallister
Complete analytical data for samples of the Big Timber Stock, Crazy Mountains, Montana Complete analytical data for samples of the Big Timber Stock, Crazy Mountains, Montana
No abstract available.
Authors
E. A. Du Bray
Geochemistry and petrology of Oligocene and Miocene ash-flow tuffs of the southeastern Great Basin, Nevada Geochemistry and petrology of Oligocene and Miocene ash-flow tuffs of the southeastern Great Basin, Nevada
The White River Narrows area of Southeast Nevada contains 18 regionally distributed middle Tertiary dacite to rhyolite ash-flow tuffs. Geochemical data provide an excellent opportunity to study stratigraphic and petrologic relations of these tuffs. Chemical data for each of the tuffs are distinctive and provide a significant addition to other data used to identify and correlate these...
Authors
Edward A. du Bray
Compositional characteristics of middle to upper Tertiary volcanic rocks of the Bolivian Altiplano Compositional characteristics of middle to upper Tertiary volcanic rocks of the Bolivian Altiplano
No abstract available.
Authors
E. A. Du Bray, S. D. Ludington, W. E. Brooks, B. M. Gamble, J.C. Ratte, D.H. Richter, Eduardo Soria-Escalante
Science and Products
Filter Total Items: 16
Filter Total Items: 100
The Eocene Big Timber stock, south-central Montana: Development of extensive compositional variation in an arc-related intrusion by side-wall crystallization and cumulate glomerocryst remixing The Eocene Big Timber stock, south-central Montana: Development of extensive compositional variation in an arc-related intrusion by side-wall crystallization and cumulate glomerocryst remixing
The Eocene Big Timber stock in the Crazy Mountains of south-central Montana is an elliptical, 8 by 13 km, compositionally and texturally diverse composite intrusion with a well-developed radial dike swarm. A sharp intrusive contact separates its two phases: the core of the intrusion is fine-grained quartz monzodiorite, and the volumetrically dominant remainder is composed of medium...
Authors
du Bray, S. S. Harlan
Area adjacent to the Turkey Creek caldera, Cochise County, Arizona— Analytic data and geologic sample catalog Area adjacent to the Turkey Creek caldera, Cochise County, Arizona— Analytic data and geologic sample catalog
No abstract available.
Authors
E. A. Du Bray, John S. Pallister
Complete analytical data for samples of the Big Timber Stock, Crazy Mountains, Montana Complete analytical data for samples of the Big Timber Stock, Crazy Mountains, Montana
No abstract available.
Authors
E. A. Du Bray
Geochemistry and petrology of Oligocene and Miocene ash-flow tuffs of the southeastern Great Basin, Nevada Geochemistry and petrology of Oligocene and Miocene ash-flow tuffs of the southeastern Great Basin, Nevada
The White River Narrows area of Southeast Nevada contains 18 regionally distributed middle Tertiary dacite to rhyolite ash-flow tuffs. Geochemical data provide an excellent opportunity to study stratigraphic and petrologic relations of these tuffs. Chemical data for each of the tuffs are distinctive and provide a significant addition to other data used to identify and correlate these...
Authors
Edward A. du Bray
Compositional characteristics of middle to upper Tertiary volcanic rocks of the Bolivian Altiplano Compositional characteristics of middle to upper Tertiary volcanic rocks of the Bolivian Altiplano
No abstract available.
Authors
E. A. Du Bray, S. D. Ludington, W. E. Brooks, B. M. Gamble, J.C. Ratte, D.H. Richter, Eduardo Soria-Escalante