Tectonic growth of a collisional continental margin : crustal evolution of southern Alaska / edited by Kenneth D. Ridgway [and others].

Format:

Book

Contributor:

Ridgway, Kenneth D., 1958-

Geological Society of America.

Series:

Special papers (Geological Society of America) ; 431.

Special paper ; 431

Language:

English

Subjects (All):

Geology, Structural--Alaska.

Geology, Structural.

Plate tectonics--Alaska.

Plate tectonics.

Continental margins--Alaska.

Continental margins.

Geology, Stratigraphic--Cenozoic.

Geology, Stratigraphic.

Cenozoic Geologic Period.

Alaska.

Genre:

Electronic books.

Physical Description:

1 online resource (xiii, 658 pages) : illustrations (some color), maps (some color).

Place of Publication:

Boulder, Colo. : Geological Society of America, 2007.

System Details:

text file

Summary:

"The convergent margin of southern Alaska is considered one of the type areas for understanding the growth of continental margins through collisional tectonic processes. Collisional processes that formed this margin were responsible for multiple episodes of sedimentary basin development, subduction complex growth, magmatism, and deformation. Two main collisional episodes shaped this Mesozoic-Cenozoic continental margin. The first event was the Mesozoic collision of the allochthonous Wrangellia composite terrane. This event represents the largest addition of juvenile crust to western North America in the past 100 m.y. The second event is the ongoing collision of the Yakutat terrane along the southeastern margin of Alaska. This Cenozoic event has produced the highest coast mountain range on Earth (Saint Elias Mountains), the Wrangell continental arc, and sedimentary basins throughout southern Alaska. Active collisional processes continue to shape the southern margin of Alaska, mainly through crustal shortening and strike-slip deformation, large-magnitude earthquakes, and rapid uplift and exhumation of mountain belts and high sedimentation rates in adjacent sedimentary basins. This volume contains 24 articles that integrate new geophysical and geologic data, including many field-based studies, to better link the sedimentary, structural, geochemical, and magmatic processes that are important for understanding the development of collisional continental margins."--Publisher's website.

Contents:

Geophysical character of southern Alaska

implications for crustal evolution / R.W. Saltus, T.L. Hudson, and F.H. Wilson

Crustal structure of Wrangellia and adjacent terranes inferred from geophysical studies along a transect through the northern Talkeetna Mountains / J.M.G. Glen [and others]

Crustal structure of the Alaska Range orogen and Denali fault along the Richardson Highway / M.A. Fisher [and others]

Mesozoic and Cenozoic tectonic growth of southern Alaska : a sedimentary basin perspective / J.M. Trop and K.D. Ridgway

Border Ranges fault system, southern Alaska / T.L. Pavlis and S.M. Roeske

Origin of narrow terranes and adjacent major terranes occurring along the Denali fault in the Eastern and Central Alaska Range, Alaska / W.J. Nokleberg and D.H. Richter

Detrital zircon geochronology of some Neoproterozoic to Triassic rocks in interior Alaska / D.C. Bradley [and others]

Upper Triassic continental margin strata of the central Alaska Range : implications for paleogeographic reconstruction / A.B. Till [and others]

Structure, Cr-chemistry, and age of the Border Ranges Ultramafic-Mafic Complex : a suprasubduction zone ophiolite complex / T.M. Kusky, A. Glass, and R. Tucker

Tlikakila complex in southern Alaska : a suprasubduction-zone ophiolite between the Wrangellia Composite terrane and North America / J.M. Amato [and others]

U-Pb geochronology of volcanic rocks from the Jurassic Talkeetna Formation and detrital zircons from prearc and postarc sequences : implications for the age of magmatism and inheritance in the Talkeetna arc / J.M. Amato

Restricted Gemuk Group : a Triassic to Lower Cretaceous succession in southwestern Alaska / M.L. Miller [and others]

Stratigraphy, depositional systems, and provenance of the Lower Cretaceous Kahiltna assemblage, western Alaska Range : basin development in response to oblique collision / J.L. Kalbas [and others]

Sedimentary record of the tectonic growth of a collisional continental margin : Upper Jurassic-Lower Cretaceous Nutzotin Mountains sequence, eastern Alaska Range, Alaska / J.D. Manuszak [and others]

White Mountain Granitoid Suite : isotopic constraints on source reservoirs for Cretaceous magmatism within the Wrangellia Terrane / D.C. Snyder and W.K. Hart

Pre-, syn-, and postcollisional stratigraphic framework and provenance of Upper Triassic-Upper Cretaceous strata in the northwestern Talkeetna Mountains, Alaska / B.A. Hampton [and others]

Along strike variations in metamorphism and deformation of the strata of the Kahiltna basin, south-central Alaska / C. Davidson and D. McPhillips

⁴⁰Ar/³⁹Ar and U-Pb geochronology, geochemistry, and tectonic setting of three episodes of Cretaceous-Eocene calc-alkaline magmatism in the Lake Clark Region, southwestern Alaska / J.M. Amato [and others]

Magmatism and deformation in a terrane suture zone south of the Denali fault, northern Talkeetna Mountains, Alaska / R.B. Cole [and others]

Neogene transpressional foreland basin development on the north side of the central Alaska Range, Usibelli Group and Nenana Gravel, Tanana basin / K.D. Ridgway

Neotectonic framework of the north-central Alaska Range foothills / S.P. Bemis and W.K. Wallace

Geomorphic evidence of active transpressional deformation in the Tanana foreland basin, south-central Alaska / M.E. Lesh and K.D. Ridgway

Gravity and magnetic character of south-central Alaska : constraints on geologic and tectonic interpretations, and implications for mineral exploration / J.M.G. Glen, J. Schmidt, and R. Morin

Metallogeny of the Nikolai large igneous province (LIP) in southern Alaska and its influence on the mineral potential of the Talkeetna Mountains / J.M. Schmidt and R.K. Rogers.

Notes:

Includes bibliographical references and index.

Derived from print version record.

Other Format:

Print version: Tectonic growth of a collisional continental margin.

OCLC:

976435569

Access Restriction:

Restricted for use by site license.