Geology and tectonic development of the continental margin north of Alaska

Grantz, Arthur; Eittreim, Stephen L.; Dinter, David A.

doi:10.1016/0040-1951(79)90050-7

Cited by 148 publications

(144 citation statements)

References 7 publications

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“…Obduction of the oceanic rocks apparently occurred in response to counterclockwise rotation and oroclinal bending of the lower plate continental rocks of the Arctic Alaska plate (including the schist belt and Doonerak window) driven by rifting in the Arctic region between Early Jurassic and Early Cretaceous time (Tailleur, 1969;Mayfield and others, 1983;Grantz and May, 1983). Collision of a Jurassic and Cretaceous intraoceanic arc terrane with the southward-facing continental margin adjacent to the Yukon-Koyukuk basin has been proposed as an additional cause of the northward obduction (Box, 1985a).…”

Section: Low-grade Rocks Of the Doonerak Windowmentioning

confidence: 99%

Metamorphic history of Alaska

Dusel-Bacon¹

1991

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Section: Low-grade Rocks Of the Doonerak Windowmentioning

confidence: 99%

Metamorphic history of Alaska

Dusel-Bacon¹

1991

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“…The localizations of four poles of rotation for the opening of the Canada Basin have been proposed. The lower case letters indicate the proposed pole of opening as given by the referenced authors: (a) Taylor et al (1981); (b) Grantz et al (1979); (c) Grantz et al (1990); (d) Norris (1983). The heavy dashed line indicates the trend of the Magsat anomaly through this region.…”

Section: Data Processing and Analysismentioning

confidence: 99%

“…• N, 142.50 • W. Grantz et al (1979), based on matching the 1000-m isobath, suggested a pole of 69.1…”

Section: Introductionmentioning

confidence: 99%

Geohazard assessment from satellite magnetic data modeling—with examples from the Arctic Margin along the Canada Basin and the Korean Peninsula along 40°N (latitude) parallel

et al. 2008

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Long-wavelength, relative high-amplitude-magnetic anomalies obtained at satellite altitudes have provided an understanding of the nature of the deeper crust of the Earth. We have studied two such long-wavelength anomalies in regions of high stress-one with a large and one with a lower amplitude anomaly. The first feature is on the Canada Basin continental margin in the Northwest and Yukon Territories, Canada (magnetic anomaly range: 19 nT to −6 nT at 350-km altitude). This area is also the focus of significant stress and earthquake activity. We interpret this anomaly and associated tectonic activity with this region's position at or near the fulcrum of the scissors-like opening of the Canada Basin in the mid-Mesozoic Era. The second is a section along the 40• N (latitude) parallel crossing the Korean Peninsula (magnetic anomaly range: <−2 nT to >3 nT at 350-km altitude), where an east-west fracture zone has been proposed to extend from northeastern China, across the Korean Peninsula, Sea of Japan and (Northern) Japan.

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“…The timing and manner in which the Amerasian Basin formed is presently under dispute due to sparse data from the basin itself. The simplest and most quoted plate tectonic model which is based mainly on geological and geophysical observations from the basin margins is that the basin formed by the anti-clockwise rotation of northern Alaska and adjacent northeastern Siberia away from the Canadian Arctic Archipelago (Tailleur 1969;Rickwood 1970;Grantz et al 1979). Sea floor spreading is interpreted to have begun in Early Cretaceous and to have lasted until early Late Cretaceous.…”

Section: Regional Speculationsmentioning

confidence: 99%