Geologic studies in Alaska by the U.S. Geological Survey, 1992
Links
- Document: Report (pdf)
- NGMDB Index Pages:
- Deep-water lithofacies and conodont faunas of the Lisburne Group, west-central Brooks Range, Alaska (html)
- Depositional sequences in Lower Cretaceous rocks, Atigun syncline and Slope Mountain areas, Alaskan North Slope (html)
- Early Cenozoic depositional systems, Wishbone Hill district, Matanuska coal field, Alaska (html)
- Favorable areas for metallic mineral resources in and near the Horn Mountains, Sleetmute quadrangle, southwestern Alaska (html)
- Geochemical character of Upper Paleozoic and Triassic greenstone and related metavolcanic rocks of the Wrangellia terrane in northern southeastern Alaska (html)
- Geochemistry of ophiolitic rocks from Knight Island, Prince William Sound, Alaska (html)
- Gold and cinnabar in heavy-mineral concentrates from stream-sediment collected from the western half of the Lime Hills 1 degree X 3 degree quadrangle, Alaska (html)
- Late Holocene longitudinal and parabolic dunes in northern Alaska: preliminary interpretation of age and paleoclimatic significance (html)
- Lithofacies and conodonts of Carboniferous strata in the Ivotuk Hills, western Brooks Range, Alaska (html)
- Newly discovered molybdenite occurrences at Dora Bay, Prince of Wales Island, southeast Alaska, and preliminary scanning electron microscope studies (html)
- Ostracode assemblages from modern bottom sediments of Vitus Lake, Bering Piedmont Glacier, southeast Alaska (html)
- Reconnaissance geochemistry of Permian and Triassic basalts of the Taku and Wrangellia terranes, southeastern Alaska (html)
- Rubidium-strontium isotopic systematics of vein minerals in the Juneau gold belt, Alaska (html)
- U-Pb ages of zircon, monazite, and sphene from Devonian metagranites and metafelsites, central Brooks Range, Alaska (html)
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Abstract
This collection of 19 papers continues the annual series of U.S. Geological Survey reports on the geology of Alaska. The contributions, which include full-length Articles and shorter Geologic Notes, cover a broad range of topics including dune formation, stratigraphy, paleontology, isotopic dating, mineral resources, and tectonics. Articles, grouped under four regional headings, span nearly the entire State from the North Slope to southwestern, south-central, and southeastern Alaska (fig. 1).
In the section on northern Alaska, Galloway and Carter use new data on dune morphology and radiocarbon ages from the western Arctic Coastal Plain to develop a late Holocene chronology of multiple episodes of dune stabilization and reactivation for the region. Their study has important implications for climatic changes in northern Alaska during the past 4,000 years. In two papers, Dumoulin and her coauthors describe lithofacies and conodont faunas of Carboniferous strata in the western Brooks Range, discuss depositional environments, and propose possible correlations and source areas for some of the strata. Schenk and Bird propose a preliminary division of the Lower Cretaceous stratigraphic section in the central part of the North Slope into depositional sequences. Aleinikoff and others present new U-Pb data for zircons from metaigneous rocks from the central Brooks Range. Karl and Mull, reacting to a proposal regarding terrane nomenclature for northern Alaska that was published in last year's Alaskan Studies Bulletin, provide a historical perspective of the evolution of terminology for tectonic units in the Brooks Range and present their own recommendations.
Study Area
| Publication type | Report |
|---|---|
| Publication Subtype | USGS Numbered Series |
| Title | Geologic studies in Alaska by the U.S. Geological Survey, 1992 |
| Series title | Bulletin |
| Series number | 2068 |
| DOI | 10.3133/b2068 |
| Year Published | 1993 |
| Language | English |
| Publisher | U.S. Geological Survey |
| Publisher location | Washington, D.C. |
| Contributing office(s) | Alaska Science Center, Geology, Minerals, Energy, and Geophysics Science Center |
| Description | vi, 250 p. |
| Country | United States |
| State | Alaska |