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Page 199, results 4951 - 4975

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Publication Extents

Not all publications have extents, not all extents are completely accurate
Migration of the Acadian Orogen and foreland basin across the Northern Appalachians of Maine and adjacent areas
Dwight Culver Bradley, Robert D. Tucker, Daniel R. Lux, Anita G. Harris, D. Colin McGregor
2000, Professional Paper 1624
The timing of Acadian orogenesis in Maine is reassessed, on the basis of a new Silurian-Devonian time scale, new U/Pb and 40Ar/39Ar ages of Acadian plutons, new conodont and palynomorph ages of strata that constrain the age of deformation, and published information. This analysis shows that the Acadian deformation front...
Geologic studies in Alaska by the U.S. Geological Survey, 1998
Karen D. Kelley, Larry P. Gough, editor(s)
2000, Professional Paper 1615
The 14 papers that follows continue the series of U.S. Geological Survey (USGS) reports on investigations in the geologic sciences in Alaska. The series presents new and sometimes preliminary findings that are of interest to earth scientists in academia, government, and industry; to land and resource managers; and to the...
A geologic guide to Wrangell-Saint Elias National Park and Preserve, Alaska: A tectonic collage of northbound terranes
Gary R. Winkler, Edward M. MacKevett Jr., George Plafker, D.H. Richter, D. S. Rosenkrans, H. R. Schmoll
2000, Professional Paper 1616
Wrangell-Saint Elias National Park and Preserve, the largest unit in the U.S. National Park System, encompasses near 13.2 million acres of geological wonderments. This geologic guide presents history of exploration and Earth-science investigation; describes the complex geologic makeup; characterizes the vast college of accretion geologic terranes in this area of...
Bibliography of literature from 1990-1997 pertaining to Holocene and fumarolic Pleistocene volcanoes of Alaska, Canada, and the conterminous United States
Christopher J. Harpel, John W. Ewert
2000, Open-File Report 2000-17
The 1980's and 1990's were marked by frequent worldwide destructive volcanic eruptions. Significant loss of life and property during eruptions, and extensive media coverage of volcanic events around the globe have brought volcanic processes and hazards increasingly to the forefront of scientific, governmental, and public attention (e.g., Casadevall, 1994; Pringle, 1994). A result of...
Assessment of mineral resource tracts in the Chugach National Forest, Alaska
Steven W. Nelson, Marti L. Miller
2000, Open-File Report 2000-26
Locatable minerals have been produced from the Chugach National Forest (CNF) for nearly 100 years. Past gold production has come from the Kenai Peninsula and the Girdwood, Port Wells, and Valdez areas. Copper and by-product gold and silver have been produced from mines at Ellamar, on Latouche Island, and near...
Regional seismic lines reprocessed using post-stack processing techniques: National Petroleum Reserve, Alaska
John J. Miller, Warren F. Agena, Myung W. Lee, F. N. Zihlman, J. A. Grow, D. J. Taylor, Michele Killgore, H. L. Oliver
2000, Open-File Report 2000-286
This CD-ROM contains stacked, migrated, 2-Dimensional seismic reflection data and associated support information for 22 regional seismic lines (3,470 line-miles) recorded in the National Petroleum Reserve – Alaska (NPRA) from 1974 through 1981. Together, these lines constitute about one-quarter of the seismic data collected as part of the Federal Government’s...
Geologic Map of the Nulato Quadrangle, West-Central Alaska
W. W. Patton Jr., E. J. Moll-Stalcup
2000, IMAP 2677
Introduction The Nulato quadrangle encompasses approximately 17,000 km2 (6,500 mi2) of west-central Alaska within the Yukon River drainage basin. The quadrangle straddles two major geologic features-the Yukon-Koyukuk sedimentary basin, a huge triangle-shaped Cretaceous depression that stretches across western Alaska from the Brooks Range to the Yukon delta; and the Ruby geanticline,a...
Geologic map of the McCarthy D-1 Quadrangle, Alaska
D.H. Richter, J.C. Ratte, W.P. Leeman, Martin Menzies
2000, IMAP 2695
Data set describes a 20-million-year-old shield volcano in the Wrangell volcanic field of north-central Alaska. These digital files were used to create the 1:63,360-scale geologic map of the McCarthy D-1 quadrangle....