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Author: Kirk Johnson Publisher: Fulcrum Publishing ISBN: 1936218186 Category : History Languages : en Pages : 292
Book Description
Sponsored by a grant from the National Science Foundation to the Denver Museum of Natural History. Ever wondered what the ground below you was like millions of years ago? Merging paleontology, geology, and artistry, Ancient Wyoming illustrates scenes from the distant past and provides fascinating details on the flora and fauna of the past 300 million years. The book provides a unique look at Wyoming, both as it is today and as it was throughout ancient history—at times a vast ocean, a lush rain forest, and a mountain prairie.
Author: Kirk Johnson Publisher: Fulcrum Publishing ISBN: 1936218186 Category : History Languages : en Pages : 292
Book Description
Sponsored by a grant from the National Science Foundation to the Denver Museum of Natural History. Ever wondered what the ground below you was like millions of years ago? Merging paleontology, geology, and artistry, Ancient Wyoming illustrates scenes from the distant past and provides fascinating details on the flora and fauna of the past 300 million years. The book provides a unique look at Wyoming, both as it is today and as it was throughout ancient history—at times a vast ocean, a lush rain forest, and a mountain prairie.
Author: John David Love Publisher: ISBN: Category : Fossils Languages : en Pages : 62
Book Description
Remnants of Eocene rocks along the modern Teton Range date the final uplift and subsidence of the ancestral Teton-Targhee arch, and determine direction of Eocene drainage.
Author: David R. Lageson Publisher: ISBN: Category : Science Languages : en Pages : 292
Book Description
An introductory chapter briefly reviews Wyoming's geology followed by a series of road guides with the local particulars. The authors tell you what the rocks are and what they mean. Useful graphics and charts supplement the text and help you to understa
Author: Albert W. Bally Publisher: Geological Society of America ISBN: 0813754453 Category : Science Languages : en Pages : 633
Book Description
Summaries of the major features of the geology of North America and the adjacent oceanic regions are presented in 20 chapters. Topics covered include concise reviews of current thinking about Precambrian basement, Phanerozoic orogens, cratonic basins, passive-margin geology of the Atlantic and Gulf Coast regions, marine and terrestrial geology of the Caribbean region and economic geology.
Author: C. E. Whipkey Publisher: ISBN: Category : Geology Languages : en Pages : 28
Book Description
Fluvial and lacustrine-dominated clastic sedimentary rocks as thick as 1,800 m (6,000 ft) comprise the Paleocene Fort Union Formation and the Eocene Wasatch Formation of the western Powder River Basin in northeastern Wyoming and southeastern Montana. The systematic mineralogy of 45 samples of channel-fill sandstone from this sequence reflects the uplift and erosion of the Bighorn Mountains. Samples were collected to study vertical changes in the mineralogy of lower Tertiary sandstones adjacent to the Bighorn Mountains, lateral variations in the composition of the upper Paleocene Tongue River Member of the Fort Union Formation along the eastern front of the mountains, and variations in the composition of equivalent upper Paleocene sandstones of the central and western parts of the basin. Vertical changes in the mineralogy of a succession of Paleocene and Eocene sandstone units adjacent to the Bighorn Mountains most likely were produced by uplift and sequential erosion of the rocks that formerly overlaid the mountains. Uplift probably began in the middle Paleocene, during deposition of the Lebo Member of the Fort Union Formation, and continued into the Eocene. Differences in the mineralogy of the sandstone units along the western edge of the Powder River Basin that correspond to differences in the rock types now exposed along the crest of the Bighorn Mountains suggest that much of the erosional degradation of the Bighorn Mountains occurred during an early Tertiary tectonic episode. Lateral changes in the suite of unstable detrital grains within the Tongue River Member are compatible with facies and paleotransport studies that indicate a substantial eastward flux of detritus of early Tertiary age from the Bighorn Mountains into the central Powder River Basin.
Author: Kirk Johnson
Author: Kirk Johnson
Author: Helen M. Beikman
Author: John David Love
Author: John David Love
Author: David R. Lageson
Author: William Jasper Sando
Author: Albert W. Bally
Author: 
Author: William R. Keefer
Author: C. E. Whipkey