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The collection of 14 studies that follow continues the series of U.S. Geological Survey (USGS) investigative reports in Alaska under the broad umbrella of the geologic sciences. This 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 general public. The reports presented in Studies by the U.S. Geological Survey in Alaska cover a broad spectrum of topics from various parts of the State, serving to emphasize the diversity of USGS efforts to meet the Nation’s needs for Earth-science information in Alaska.The chapters in this volume are organized under the topics Geologic Framework, Environment and Climate, and Hazards. This organization is intended to reflect the scope and objectives of current USGS programs in Alaska. |
This report consists of 19 separate PDF files and one spatial database, all available here
Cover and frontispiece (140 KB)
Contents (88 KB)
Introduction (200 KB)
GEOLOGIC FRAMEWORK
Chapter 2—New Occurrences of Late Paleozoic and Triassic Fossils from the Seventymile and Yukon-Tanana Terranes, East-Central Alaska, with Comments on Previously Published Occurrences in the Same Area (4.3 MB)
Chapter 3—Cretaceous Epigenetic Base-Metal Mineralization at the Lead Creek Prospect, Eastern Yukon-Tanana Upland, Alaska: Constraints from U-Pb Zircon Dating and Pb-Isotopic Analyses of Sulfides (704 KB)
Chapter 4—A Cretaceous Ion-Microprobe U-Pb Zircon Age for the West Point Orthogneiss: Evidence for Another Gneiss Dome in the Yukon-Tanana Upland (2.5 MB)
Chapter 5—Kinematic Analysis from Tectonites in the Northern Part of the Big Delta Quadrangle, East-Central Alaska (512 KB)
Chapter 6—Tertiary Volcanic Rocks of the Central Talkeetna Mountains, Alaska (1.8 MB)
Chapter 7—Mesozoic Sedimentation and Deformation along the Talkeetna Thrust Fault, South-Central Alaska—New Insights and Their Regional Tectonic Significance (4.3 MB)
Chapter 8—The Clark Bar Prospect: Granite-Hosted Sn-Mo-Ag Mineralization in the Northern Talkeetna Mountains, Southern Alaska (3.5 MB)
Chapter 9—Early Middle Devonian (Eifelian) Gastropods from the Wadleigh Limestone in the Alexander Terrane of Southeastern Alaska Demonstrate Biogeographic Affinities with Central Alaskan Terranes (Farewell and Livengood) and Eurasia (700 KB)
Chapter 10—Kirkospira, a New Silurian Gastropod from Glacier Bay, Southeastern Alaska (464 KB)
ENVIRONMENT AND CLIMATE
Chapter 11—Soil Temperature, Moisture, and Carbon and Nitrogen Mineralization at a Taiga-Tundra Ecotone, Noatak National Preserve, Northwestern Alaska (728 KB)
Chapter 12—Soil Drainage and Its Potential for Influencing Wildfires in Alaska (396 KB)
Download the spatial database for chapter 12 as a gzip file and the accompanying readme file
Chapter 13—The Effect of Soil Drainage on Fire and Carbon Cycling in Central Alaska (448 KB)
HAZARDS
Chapter 14—Trident Volcano: Four Contiguous Stratocones Adjacent to Katmai Pass, Alaska Peninsula (5.1 MB)
Chapter 15—Geology and Late Quaternary Eruptive History of Kanaga Volcano, a Calc-Alkaline Stratovolcano in the Western Aleutian Islands, Alaska (2.8 MB)
BIBLIOGRAPHIES
Chapter 16—U.S. Geological Survey Reports on Alaska Released in 2001 (60 KB)
Chapter 17—Reports on Alaska in Non-USGS Publications Released in 2001 That Include USGS Authors (80 KB)
For questions about the content of this report, contact John Galloway
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