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4 edition of Mount Galen volcanics, a new Middle Tertiary volcanic formation in the Central Alaska Range found in the catalog.

Mount Galen volcanics, a new Middle Tertiary volcanic formation in the Central Alaska Range

John E. Decker

Mount Galen volcanics, a new Middle Tertiary volcanic formation in the Central Alaska Range

by John E. Decker

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  • 35 Currently reading

Published by Division of Geological & Geophysical Surveys in College, Alaska .
Written in English

    Places:
  • Alaska,
  • Galen, Mount, region.
    • Subjects:
    • Volcanic ash, tuff, etc. -- Alaska -- Galen, Mount, region,
    • Geology, Stratigraphic -- Tertiary,
    • Geology -- Alaska -- Galen, Mount, region

    • Edition Notes

      Bibliography: p. 10-11.

      Statementby John E. Decker and Wyatt G. Gilbert.
      SeriesGeologic report ;, 59, Geologic report (Alaska. Division of Geological and Geophysical Surveys) ;, 59.
      ContributionsGilbert, Wyatt G., joint author.
      Classifications
      LC ClassificationsQE83 .A25 no. 59, QE461 .A25 no. 59
      The Physical Object
      Paginationiii, 11 p. :
      Number of Pages11
      ID Numbers
      Open LibraryOL4068405M
      LC Control Number79621719

      Tvb Andesite and basalt (Oligocene and Eocene)-- Andesite breccia and tuff called the Mount Galen Volcanics (Gilbert, ) that is the eruptive equivalent of the Mount Eielson pluton. usually found in close proximity to the Talkeetna Formation. The Alaska-Aleutian Range batholith has been best described and dated by Reed and Lanphere ( Coombs, M. L., Eichelberger, J. C., and Rutherford, M. J., , Magma storage and mixing conditions for the eruptions of Southwest Trident volcano, Katmai.

      New zircon U-Pb ages for the lower Cantwell Formation: implications for the Late Cretaceous paleoecology and paleoenvironment of the lower Cantwell Formation near Sable Mountain, Denali National Park and Preserve, central Alaska Range, USA: Proceedings of the sixth International Conference on Arctic Margins (ICAM VI), Fairbanks, AK, p. PP C / Huber, N. K. / THE PORTAGE LAKE VOLCANICS (MIDDLE KEWEENAWAY) ON ISLE ROYALE, MICHIGAN, , pb, 32 pages, 24 figs., 2 tables, uncirculated condition, $ 15 PP / Oldale, R. N., / SEDIMENTARY FRAMEWORK OF THE WESTERN GULF OF MAINE AND THE SOUTHEASTERN MASSACHUSETTS OFFSHORE, , pb, 10 pages, 2 plates (in pocket), 1.

      Book Source Institution University of South Florida Library Subjects / Keywords Velocity model B-value Relocation InSAR Volcanic arc Crustal deformation Dissertations, Academic -- Geology -- Masters -- USF Title Seismic and geodetic investigation of the earthquake swarm at strandline lake, alaska Aggregation USF Electronic Theses and. PP / Pewe, T. L. / QUATERNARY STRATIGRAPHIC NOMENCLATURE IN UNGLAGIATED CENTRAL ALASKA, , 32 pages, 12 illustrations, 4 tables, $ PP A / Faust, G. T. / A REVIEW AND INTERPRETATION OF THE GEOLOGICAL SETTING OF THE WATCHUNG BASALT FLOW, NEW JERSEY, , pb, 42 pages, 12 figs., 3 tables, $


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Mount Galen volcanics, a new Middle Tertiary volcanic formation in the Central Alaska Range by John E. Decker Download PDF EPUB FB2

The Mount Galen volcanics - a new middle Tertiary volcanic formation in the central Alaska Range, Alaska. Authors: Decker, J.E., and Gilbert, W.G.

Publication Date: ; Publisher: Alaska Division of Geological & Geophysical Surveys ; Total Price: $; Ordering Info: Download below or please see our publication sales page for more information. THE MOUNT GALEN VOLCANICS--A NEW MIDDLE TERTIARY VOLCANIC FORMATION IN THE CENTRAL ALASKA RANGE BY John E.

~eckerl and Wyatt G. Gilbert2 ABSTRACT PREVIOUS INVESTIGATIONS The Mount Galen Volcanics are named for a series of andesitic and basaltic lava flows, breccia, and tuff of late Eocene-early Oligocene age in the west-central. The Mount Galen volcanics, a new Middle Tertiary volcanic formation in the Central Alaska Range John E Decker ; Wyatt G Gilbert Geologic report (Juneau, Alaska), The volcanic rocks of the Mount Galen area were shown to be late Eocene and early Oligocene and were named the Mount Galen Volcanics by Decker and Gilbert ().

Published K-Ar ages (Decker and Gilbert, ) for the Mount Galen Volcanics (table 1) range from +/ to +/ Ma, with minimum ages of +/ to +/ Ma.

Decker, J. E., and Gilbert, W. G.,The Mt. Galen volcanics-A new middle Tertiary volcanic formation in central Alaska Range: Alaska Division of Geological and Geophysical Surveys Geological Rep 11 p.

The Cantwell Formation consists of a lower sedimentary sequence as much as 4, m thick and an upper volcanic sequence with a maximum thickness of 3, m that was deposited in the Cantwell basin, south-central Alaska. New data based on palynologic analyses of fine-grained samples indicate that the lower Cantwell Formation was deposited.

Southern Alaska is a prime location to study accretionary tectonic processes given that it consists of a collage of accreted terranes that were added progressively to the former continental margin, and terrane accretion is actively occurring (Coney et al., ; Plafker and Berg, ; Worthington et al., ).In particular, the Alaska Range suture zone is an ideal location to examine the.

The Frederika Formation and overlying Wrangell Lavas comprise >3 km of sedimentary and volcanic strata exposed in the Wrangell Mountains of south-central Alaska (United States). Measured stratigraphic sections and lithofacies analyses document lithofacies associations that reflect deposition in alluvial-fluvial-lacustrine environments routinely.

A central gabbro-granite intrusion is interpreted to be a high-level magma chamber of the Mount Edgell volcano. station R, book is 16 crn high, c. Clastsupported breccia, station R Within ∼50 km of the Middle Fork caldera are 14 examples of Late Cretaceous (?)–Tertiary felsic volcanic and hypabyssal intrusive rocks that range in area from.

This chapter reports new field, petrographic, and geochemical data for two Tertiary volcanic units and underlying sedimentary rocks in the southeast corner of the Mount McKinley ,scale.

Decker, J.E., and Gilbert, W.G.,The Mount Galen volcanics - a new middle Tertiary volcanic formation in the central Alaska Range, Alaska: Alaska Division of Geological & Geophysical Surveys Geologic Rep 11 p. Stratigraphy, Age, and Geochemistry of Tertiary Volcanic Rocks and Associated Synorogenic Deposits, Mount McKinley Quadrangle, Alaska By Ronald B.

Cole1 and Paul W. Layer2 46 m above the base of the Mount Galen Volcanics yields an age of ± Ma. The Mount Galen Volcanics is enriched in Ba, Th, Sr, and LREEs, has high Ba/Ta ratios ( Decker, J. E., and Gilbert, W. G.,The Mt. Galen volcanics-A new middle Tertiary volcanic formation in central Alaska Range: Alaska Division of Geological and.

A 'read' is counted each time someone views a publication summary (such as the title, abstract, and list of authors), clicks on a figure, or views or downloads the full-text. The Brooks Range (Athabaskan Gwazhał) is a mountain range in far northern North America stretching some miles (1, km) from west to east across northern Alaska into Canada's Yukon ng a peak elevation of 8, feet (2, m) on Mount Isto, the range is believed to be approximately million years old.

In the United States, these mountains are considered an. The Mount Galen volcanics, a new middle Tertiary volcanic formation in the central Alaska Range, Decker, J. E., and Gilbert, W. G.,The Mount Galen volcanics, a new middle Tertiary volcanic formation in the central Alaska Range: Alaska Division of Geological & Geophysical Surveys Geologic Report GR11 p.

The Mount Harper Volcanics of the Coal Creek inlier of the central Ogilvie Mountains is a mildly calc-alkaline magmatic suite that has been interpreted as the product of a partial melting at the. The tier is bisected by Grant Creek, a tributary to the Thorofare River on the northwest flank of Mt.

Eielson. The claims form a block about feet east-west by feet north-south. The block is east of, and adjoins, the west tier of claims described in record MM The west-central tier of claims are between and feet elevation.

During the eruptive period, the mountain peak was substantially enlarged by new lava flows and pyroclastic debris. Three of the following statements about the May, eruption of Mount.

Radiocarbon-dated volcanic mass-flow deposits on the southeast flank of Mount Spurr in south-central Alaska provide strong evidence for the timing of large-scale destruction of the south flank of.Sontag, L. J.,Paleomagnetism of the Paleocene Teklanika Volcanics, central Alaska Range, Alaska: Mississippi State University unpublished M.S.

thesis, 69 p. The estimate of influence of oceanic or continental crust at sources of island-arc volcanisms by (Th/ U) (sub Th) and (Th/ U) (sub Pb) isotope systematics, A mountain is a natural rise in the Earth’s surface which is usually formed as a result of crustal movements on the planet.

On the basis of how they are formed, mountains are categorized into five different types – fold mountains, fault-block mountains, plateau mountains, dome mountains and volcanic mountains.