Download or read book Stratigraphy Petrology and Geochemistry of Upper Triassic Rocks from the Pingston and McKinley Terranes Central Alaska Range written by Wyatt G. Gilbert and published by . This book was released on 1984 with total page 14 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book U S Geological Survey Circular written by and published by . This book was released on 1984 with total page 934 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Stratigraphy Metamorphic Geology and Structural Geology of the Central Alaska Range Alaska written by Kirk W. Sherwood and published by . This book was released on 1979 with total page 388 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Strong motion Program Report January December 1983 written by and published by . This book was released on 1986 with total page 522 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Tectonic Growth of a Collisional Continental Margin written by Kenneth D. Ridgway and published by Geological Society of America. This book was released on 2007 with total page 676 pages. Available in PDF, EPUB and Kindle. Book excerpt: "The convergent margin of southern Alaska is considered one of the type areas for understanding the growth of continental margins through collisional tectonic processes. Collisional processes that formed this margin were responsible for multiple episodes of sedimentary basin development, subduction complex growth, magmatism, and deformation. Two main collisional episodes shaped this Mesozoic-Cenozoic continental margin. The first event was the Mesozoic collision of the allochthonous Wrangellia composite terrane. This event represents the largest addition of juvenile crust to western North America in the past 100 m.y. The second event is the ongoing collision of the Yakutat terrane along the southeastern margin of Alaska. This Cenozoic event has produced the highest coast mountain range on Earth (Saint Elias Mountains), the Wrangell continental arc, and sedimentary basins throughout southern Alaska. Active collisional processes continue to shape the southern margin of Alaska, mainly through crustal shortening and strike-slip deformation, large-magnitude earthquakes, and rapid uplift and exhumation of mountain belts and high sedimentation rates in adjacent sedimentary basins. This volume contains 24 articles that integrate new geophysical and geologic data, including many field-based studies, to better link the sedimentary, structural, geochemical, and magmatic processes that are important for understanding the development of collisional continental margins."--Publisher's website.
Download or read book Age and Structural Significance of Ophiolite and Adjoining Rocks in the Upper Chulitna District South central Alaska written by and published by . This book was released on 1980 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Map of DGGS Publications with Author and Quadrangle Indexes written by Alaska. Division of Geological and Geophysical Surveys and published by . This book was released on 1985 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Sedimentology and Stratigraphy of Upper Triassic Carbonate and Clastic Strata of the Chulitna Terrane Alaska Range South central Alaska written by Jennifer L. DeLoge and published by . This book was released on 2009 with total page 312 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Information Circular written by Alaska. Division of Geological and Geophysical Surveys and published by . This book was released on 1985 with total page 56 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book High Resolution Sequence Stratigraphy and Geochemistry of Middle and Upper Triassic Sedimentary Rocks Northeast and Central Brooks Range Alaska written by Landon Neal Kelly and published by . This book was released on 2004 with total page 398 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Triassic age rocks constitute an important sedimentary interval on the North Slope of Alaska, because they include organic-rich source rocks that generated much of the oil that accumulated in the Prudhoe Bay field. Three detailed measured sections in the northeast and north-central Brooks Range are characterized using sequence stratigraphy, chemostratigraphy, biostratigraphy and ichnofabric, allowing interpretations about the evolution of the depositional environment and general paleogeographic setting through the Middle and Upper Triassic. High resolution correlation provides insight into the timing and pattern of source rock accumulation in the Shublik and Otuk Formations. Sequence and chemo-stratigraphic analyses suggest that deposition took place on a broad, low-angle shelf under fluctuating paleoceanographic conditions. Recorded are three third order sequences, each containing a sea level rise and highstand. Glauconitic, phosphatic, and organic-rich rocks of the Shublik and Otuk Formations indicate deposition in an environment characterized by oceanic upwelling. Organic and inorganic geochemical data support interpretations concerning paleoxygenation gradients. The cerium anomaly, manganese, phosphorus, vanadium, total organic carbon, and calcium-manganese ratio indicate dominantly oxic bottom waters during the Middle Triassic, dominantly low oxygen or anoxic conditions during much of the Upper Triassic, and a return to more oxic conditions in the late Upper Triassic"--Leaves iii.
Download or read book Report of Investigations written by and published by . This book was released on 1984 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Role of Sediments in the Chemistry of Aquatic Systems written by John G. Newton and published by . This book was released on 1987 with total page 382 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Bibliography and Index of Geology written by and published by . This book was released on 1985 with total page 1328 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Distribution Facies Ages and Proposed Tectonic Associations of Regionally Metamorphosed Rocks in East and South central Alaska written by and published by . This book was released on 1993 with total page 82 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Stratigraphy Structure and Metamorphism of the Mount Deborah Area Central Alaska Range Alaska written by Wayne Martin Brewer and published by . This book was released on 1982 with total page 516 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Geology Geochemistry and Uranium Favorability of Tertiary Rocks in South central Alaska written by Kendell A. Dickinson and published by . This book was released on 1995 with total page 84 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Age and Structure of a Deformed Triassic Sequence in the Upper Wood River Valley Central Alaska Range Alaska written by Paul John Umhoefer and published by . This book was released on 1979 with total page 122 pages. Available in PDF, EPUB and Kindle. Book excerpt:
