Download or read book 63rd Annual Tri State Geological Field Conference written by and published by . This book was released on 2000 with total page 92 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Field Trip Guidebooks written by Institute on Lake Superior Geology and published by . This book was released on 1980 with total page 260 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Geological Survey Bulletin written by and published by . This book was released on 1979 with total page 430 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book U S Geological Survey Bulletin written by and published by . This book was released on 1983 with total page 228 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book U S Geological Survey Bulletin written by Gene L. LaBerge and published by . This book was released on 1991 with total page 346 pages. Available in PDF, EPUB and Kindle. Book excerpt: A reconnaissance study carried out in conjunction with regional geologic mapping.
Download or read book 43rd Annual Tri State Geological Conference October 5 7 1979 written by and published by . This book was released on 1979 with total page 406 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Rockhounding Wisconsin written by Robert Beard and published by Rowman & Littlefield. This book was released on 2018-06-01 with total page 297 pages. Available in PDF, EPUB and Kindle. Book excerpt: Explore the mineral-rich region of Wisconsin with veteran rockhound Robert Beard’s Rockhounding Wisconsin and unearth the state’s best rockhounding sites, ranging from popular and commercial sites to numerous lesser-known areas. Featuring an overview of the state’s geologic history as well as a site-by-site guide to the best rockhounding locations, Rockhounding Wisconsin is the ideal resource for rockhounds of all ages and experience levels.
Download or read book Guidebook Series written by and published by . This book was released on 1990 with total page 116 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Guidebook Series written by Illinois State Geological Survey and published by . This book was released on 1979 with total page 506 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Geological Survey Professional Paper written by and published by . This book was released on 1984 with total page 452 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book New Observations on the Age and Structure of Proterozoic Quartzites in Wisconsin written by Gene L. LaBerge and published by . This book was released on 1991 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt: Proterozoic quartzite is exposed at several isolated localities within an area of nearly 13,000 square kilometers in Wisconsin. Although early workers proposed that the quartzite is of two different ages, more recent workers have suggested that the various quartzite bodies are correlative, and that their protoliths were deposited between 1,760 and 1,630 Ma. Structural and stratigraphic studies of the quartzite deposits together with new age data indicate that the quartzite is at least of two distinct ages. Quartzite at McCaslin and Thunder Mountains, in northeastern Wisconsin, is older than 1,812 Ma, as indicated indirectly by a dated intrusion, and quartzite boulders in conglomerates in central Wisconsin are at least as old as the rhyolite country rock (=1,840 Ma). Deformed quartzite at Hamilton Mounds, in south-central Wisconsin, is intruded by undeformed granite that is 1,764 Ma. The ages of many other quartzite bodies, however, cannot be tightly constrained at present. Quartzite exposed in central and southern Wisconsin, south of the Eau Pleine shear zone, is interpreted as remnants of a passive margin sequence that was deposited on an Archean microcontinent (Marshfield terrane) and subsequently deformed in a major south-verging fold-thrust system during collision between the microcontinent and oceanic-arc rocks of the Pembine-Wausau terrane. The occurrence of quartzite-bearing conglomerates in the 1,860 Ma volcanic rocks of the Marshfield terrane suggests that the allochthonous quartzite bodies are 1,860 Ma or older. Collision occurred at about 1,840 Ma, and marked the end of the Penokean orogeny.
Download or read book Guidebook Series Illinois State Geological Survey written by Illinois State Geological Survey and published by . This book was released on 1974 with total page 614 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Cambrian Through Mississippian Rocks of the Powder River Basin Wyoming Montana and Adjacent Areas written by David L. Macke and published by . This book was released on 1993 with total page 346 pages. Available in PDF, EPUB and Kindle. Book excerpt: A multidisciplinary approach to research studies of sedimentary rocks and their constituents and the evolution of sedimentary basins, both ancient and modern.
Download or read book Paleotectonic Investigations of the Mississippian System in the United States written by Lawrence Carey Craig and published by . This book was released on 1978 with total page 422 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Proceedings of the Iowa Academy of Science written by Iowa Academy of Science and published by . This book was released on 1974 with total page 176 pages. Available in PDF, EPUB and Kindle. Book excerpt: List of members in each volume.
Download or read book Union List of Geologic Field Trip Guidebooks of North America written by Richard A. Spohn and published by . This book was released on 1996 with total page 390 pages. Available in PDF, EPUB and Kindle. Book excerpt:
