Structural-associational complexes of the Arctic shelf of Eastern Siberia

Vinogradov, V. A.; Gaponenko, G. I.; Gramberg, I. S.; Shimarayev, V. N.

doi:10.1080/00206817709471140

Cited by 13 publications

(2 citation statements)

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“…Kos'ko, 1984;Fujita and Cook, 1990;Sekretov, 2002;Kos'ko and Trufanov, 2002;Drachev and Saunders, 2006). However, there is also evidence for Pliocene and Quaternary volcanism from K-Ar rock age determination of basalts from Zhokov and Vil'kitskii Islands (Vinogradov, 1977;Kos'ko and Trufanov, 2002). Only one narrow, less than 10 km wide, graben with a maximum sedimentary infill of only 1 s (twt) was recognized in our seismic data from the De Long region, whereas termination of the seismic marker horizons against the sea floor by onlap is manifested in the seismic data at several localities, indicating uplift and associated intensive erosion of the De Long region since at least the Late Miocene.…”

Section: Structural Features and Dominant Tectonic Style Of The East mentioning

confidence: 99%

Geology of the Shelves surrounding the New Siberian Islands, Russian Arctic

Franke

Hinz

2009

Stephan Mueller Spec. Publ. Ser.

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Abstract. A total of 11 700 km of multichannel seismic reflection data were acquired during recent reconnaissance surveys of the wide, shallow shelves of the Laptev and western East Siberian Seas around the New Siberian Islands. To the north of the Laptev Sea, the Gakkel Ridge, an active mid-ocean ridge which separates the North American and Eurasian Plates, meets abruptly the steep slope of the continental shelf. Extension has affected the Laptev Shelf since at least the Early Tertiary and has resulted in the formation of three major, generally north-south trending rift basins: the Ust' Lena Rift, the Anisin Basin, and the New Siberian Basin. Our data indicate that the rift basins on the Laptev Shelf are not continuous with those on the East Siberian Shelf. The latter shelf can best be described as an epicontinental platform which has undergone continuous subsidence since the Late Cretaceous. The greatest subsidence occurred in the NE, manifested by a major depocentre filled with inferred (?)Late Cretaceous to Tertiary sediments up to 5 s (twt) thick. On the basis of deep reflection data we revise and adjust Mesozoic domain boundaries around the New Siberian Islands.

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Section: Structural Features and Dominant Tectonic Style Of The East mentioning

confidence: 99%

Geology of the Shelves surrounding the New Siberian Islands, Russian Arctic

Franke

Hinz

2009

Stephan Mueller Spec. Publ. Ser.

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“…Though the age of the volcanic flow units, each 40-100 m thick (Kos'ko and Trufanov, 2002), is still debated, most authors agree that they were emplaced in Cretaceous times in a subaerial environment (e.g., Fujita and Cook, 1990;Kos'ko, 1984;Kos'ko and Trufanov, 2002;Sekretov, 2002). However, there is also evidence for Pliocene and Quaternary volcanism from K-Ar rock age determination of basalts from Zhokov and Vil'kitskii Islands (Kos'ko and Trufanov, 2002;Vinogradov et al, 1977).…”

Section: Structural Features Of the East Siberian Shelfmentioning

confidence: 94%