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Browsing Geology by Issue Date
Now showing items 21-40 of 285
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(1967-05-29)Approximately 4,210 feet of Late Cretaceous and 1,440 feet of Tertiary sedimentary rocks are exposed in the Salt Wells Anticline area of southcentral Sweetwater County, Wyoming. Late Cretaceous units include the Blair, R ...
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(1967-05-31)The thesis area comprises 53 square miles located in Beaverhead County, Montana, and includes the Argenta mining district. Sedimentary and igneous rocks of the area range in age from Precambrian to Recent. The aggregate ...
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(1968-05-22)The thesis area is located in the southeastern corner of Harney County, Oregon. This portion of Oregon is situated in the northern part of the Basin and Range province, and is characterized by both mafic and silicic extr ...
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(1969-02-27)The thesis area consists of 65 square miles located in the southeastern part of Meagher County, Montana. Ranging in age from Precambrian to Quaternary, the strata exposed in the area have a total thickness of about 11,10 ...
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(1969-05-26)The central Bond Creek area is on the north slope of the Wrangell Mountains approximately 15 miles east of Nabesna, Alaska. The entire area is underlain by plutonic rocks of the Monte Cristo batholith of probable Jurassi ...
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(1970-06-10)The thesis area consists of 33 square miles in the south-central Pueblo Mountains of Humboldt County, Nevada and Harney County, Oregon. The Pueblo Mountains are tilted fault block mountains found in the extreme northw ...
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(1972-03-10)The Pine Forest Mountains lie within the northern part of the Basin and Range province, near Denio, northwestern Nevada. They are tilted, fault block mountains composed in part of schists and quartzites of Triassic-Juras ...
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(1972-05-24)The late Oligocene Yaquina Formation is exposed in an arcuate outcrop pattern which extends along the central Oregon Coast from Siletz Bay on the north to Seal Rock on the south. Maximum inland extent of the Yaquina out ...
Now showing items 21-40 of 285
