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Wrangell Terrane

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Journal Article
Journal: GSA Bulletin
Published: 01 June 2002
GSA Bulletin (2002) 114 (6): 693-717.
...Jeffrey M. Trop; Kenneth D. Ridgway; Jeffrey D. Manuszak; Paul Layer Abstract The ∼7000 m of Upper Triassic–Upper Cretaceous strata of the Wrangell Mountains basin depositionally overlie the allochthonous Wrangellia composite terrane in south-central Alaska. New sedimentologic, compositional...
FIGURES | View All (14)
Series: GSA Memoirs
Published: 01 January 1983
DOI: 10.1130/MEM159-p171
... the pattern of the major belts but does bring parts of the minor mid-Tertiary and Ordovician(?) belts closer together. The major belts are related to the stratigraphic-tectonic terranes of Berg, Jones, and Coney (1978) as follows: the Fairweather-Baranof belt is largely in the Chugach, Wrangell (Wrangellia...
Journal Article
Journal: Geology
Published: 01 November 1988
Geology (1988) 16 (11): 967-971.
...M. C. Gardner; S. C. Bergman; G. W. Cushing; E. M. MacKevett, Jr.; G. Plafker; R. B. Campbell; C. J. Dodds; W. C. McClelland; P. A. Mueller Abstract A quartz monzonite-syenite-alkali granite plutonic complex in eastern Alaska crosscuts the contact of the Alexander terrane and Wrangellia...
Journal Article
Published: 25 August 1999
Canadian Journal of Earth Sciences (1999) 36 (3): 433-458.
...Jeffrey M Trop; Kenneth D Ridgway; Arthur R Sweet; Paul W Layer Abstract Analysis of Upper Cretaceous sedimentary and volcanic strata in the Wrangell Mountains of south-central Alaska provides an opportunity to study the tectonics, depositional systems, and provenance of a forearc basin...
Series: Economic Geology Monograph Series
Published: 01 January 1997
DOI: 10.5382/Mono.09.04
EISBN: 9781629490045
... Abstract Kennecott-type deposits, among the highest grade copper deposits in the world, are located in the Wrangell Mountains of Alaska. They are strata bound within the lowermost 100 m of the Upper Triassic Chitistone Limestone, which overlies the Triassic Nikolai Greenstone, a sequence...
Journal Article
Published: 29 September 2005
Canadian Journal of Earth Sciences (2005) 42 (6): 1097-1116.
.... The history of subduction, orogen uplift, and, finally, extension associated with this magmatic activity can be related to plate motion since the mid-Cretaceous. The 105–50 Ma period is related to terrane accretion and subduction. The northwest–southeast-trending Coast shear zone divides the resulting Coast...
FIGURES | View All (12)
Journal Article
Journal: Geosphere
Published: 01 August 2012
Geosphere (2012) 8 (4): 805-834.
... ; Richter et al., 1990 , 2000 , 2006 ). Figure 1. Map of southern Alaska and western Canada showing the Wrangell volcanic belt (WVB, red), easternmost Aleutian volcanic arc, Yakutat microplate, Wrangellia composite terrane, and major fault systems. Vector arrows in lower right corner show net...
FIGURES | View All (22)
Journal Article
Journal: Geology
Published: 01 December 2004
Geology (2004) 32 (12): 1061-1064.
...Chris Butzer; Robert F. Butler; George E. Gehrels; Cameron Davidson; Kristin O'Connell; Maria Luisa Crawford Abstract A late Oligocene–Miocene igneous complex south and west of Wrangell, Alaska, contains mafic dikes that yield a discordant paleomagnetic direction (inclination, I = 70.4...
FIGURES
Journal Article
Journal: Geosphere
Published: 10 September 2019
Geosphere (2019) 15 (5): 1508-1538.
...Samuel E. Berkelhammer; Matthew E. Brueseke; Jeffrey A. Benowitz; Jeffrey M. Trop; Kailyn Davis; Paul W. Layer; Maridee Weber Abstract The Sonya Creek volcanic field (SCVF) contains the oldest in situ volcanic products in the ca. 30 Ma–modern Wrangell Arc (WA) in south-central Alaska, which...
FIGURES | View All (18)
Journal Article
Journal: GSA Bulletin
Published: 01 July 2002
GSA Bulletin (2002) 114 (7): 896-908.
...Gregory C. Wiles; Gordon C. Jacoby; Nicole K. Davi; Ryan P. McAllister Abstract Four intervals of late Holocene glacier advance are recognized from study of nine valley glaciers in the Wrangell and westernmost St. Elias Mountains of Alaska. The oldest glacial advance is recognized at the Nabesna...
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Series: GSA Special Papers
Published: 01 January 1988
DOI: 10.1130/SPE218-p55
... in the Wrangell, Quesnel, and Stikine terranes. Volcanic-related ultramafic complexes are found scattered through the two latter terranes. Large calc-alkaline granitic plutons are known only in a belt crossing Stikinia in northern British Columbia. At the same time, blueschists formed in the Cache Creek accretion...
Series: Geological Society, London, Special Publications
Published: 01 January 2018
DOI: 10.1144/SP460.11
EISBN: 9781786203410
... ( Gehrels 2010 b ; bottom) of inheritance ages in Wrangel Complex sample ELM06WR29 compared with correlative AAC strata and similar age strata from the Pearya terrane. Grey shaded region in normalized probability plot is 980–920 Ma. Sources of detrital zircon data: Nome Group, Till et al. (2014 b...
FIGURES | View All (11)
Series: GSA Special Papers
Published: 01 July 2008
DOI: 10.1130/2008.442(10)
...) and Wrangellia (Wrangell Mountains, Alaska, and Vancouver Island, British Columbia). Twenty-five species of coral are identified from eight localities within the Alexander terrane and 34 species are identified from four localities in Wrangellia. Distributions of silicified shallow-water marine fossils contribute...
FIGURES | View All (26)
Journal Article
Journal: Geology
Published: 01 July 2016
Geology (2016) 44 (7): 587-590.
... epicenters, which continue 85 km east of the inferred Pacific plate edge marked by WBZ seismicity. The tremor zone coincides with the edges of the downgoing Yakutat terrane, and tremors transition from periodic to continuous behavior as they near the aseismic Wrangell slab. I interpret tremor to mark slow...
Image
Diagram showing the relationships between the Alexander <b>terrane</b> and <b>Wrangel</b>...
Published: 01 August 2014
Figure 6. Diagram showing the relationships between the Alexander terrane and Wrangellia for (A) Late Devonian to Mississippian, and (B) late Mississippian to Early Permian. (C) Devono-Mississippian paleogeographic setting for the Alexander terrane and Wrangellia; North arrows indicate spatial
Journal Article
Journal: Geosphere
Published: 01 December 2014
Geosphere (2014) 10 (6): 1161-1176.
... 2. Location of seismic array, image volume, and extracted cross sections. Terrane boundaries are represented by solid gray lines. YK—Yakutat Block, PA—Pacific plate, PW—Price William, CH—Chugach, WR—Wrangell, YT—Yukon-Tanana. Gray dotted line extended from the eastern terminus of the Aleutian...
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Journal Article
Published: 01 May 2008
Journal of Paleontology (2008) 82 (3): 470-491.
...Andrew H. Caruthers; George D. Stanley, Jr. Abstract Acid processing allowed systematic identification of 458 Upper Triassic silicified scleractinian corals (20 genera, 47 species) from the Alexander terrane (southeast Alaska) and Wrangellia (Wrangell Mountains, southern Alaska and Vancouver Island...
FIGURES | View All (6)
Journal Article
Journal: GSA Bulletin
Published: 01 May 2005
GSA Bulletin (2005) 117 (5-6): 570-588.
... the inboard (northern) margin of the Wrangellia terrane (Kahiltna, Nutzotin, and Wrangell Mountains basins). We interpret the regional and synchronous nature of Late Jurassic crustal-scale deformation and synorogenic sedimentation in south-central Alaska as reflecting either initial collision...
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Journal Article
Published: 01 February 1985
Canadian Journal of Earth Sciences (1985) 22 (2): 183-194.
...Alicé Davis; George Plafker Abstract Upper Triassic metabasalt from the Chilkat Peninsula in southeastern Alaska is lithologically similar to the Middle and (or) Upper Triassic Nikolai Greenstone from the Wrangell Mountains, east-central Alaska. Both basaltic sequences show comparable petrologic...
Journal Article
Journal: Geology
Published: 01 November 1983
Geology (1983) 11 (11): 634-637.
...Daniel Sarewitz Abstract The Seven Devils terrane of eastern Oregon and western Idaho has been correlated with the Wrangellia terrane, which is best exposed on Vancouver Island, British Columbia, and in the Wrangell Mountains, Alaska. However, geologic histories of these two terranes are different...