Tectonic evolution of Northeastern Siberia and adjacent regions

Fujita, Kazuya; Newberry, James T.

doi:10.1016/0040-1951(82)90043-9

Cited by 58 publications

(20 citation statements)

References 13 publications

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“…However, there are different viewpoints as to the origin and age of this basin. Some workers interpret the South Anyui basin as a continental rift (Til'man et al, 1977;Shapiro and Ganelin, 1988;Chekhov, 2000), while others, as a re-entrant of the PaleoPacific (Churkin, 1983;Fujita and Newberry, 1982;Parfenov, 1984;Savostin et al, 1984;Zonenshain et al, 1990;Nokleberg et al, 1998) or as a remnant of the Paleo-Arctic Ocean separated by a convergent margin from the PaleoPacific (Parfenov, 1997;Sokolov et al 1997).…”

Section: Geological Frameworkmentioning

confidence: 99%

“…The advocates of rifting assign the onset of formation to the Early Triassic (Natal'in et al 1999;Savostin et al, 1984) or to the Late Jurassic (Shapiro and Ganelin, 1988;Nokleberg et al, 1998;Chekhov, 2000). Supporters of the existence of an oceanic basin in the Paleozoic (the "relict" viewpoint) draw mainly on paleomagnetic and paleobiogeographic data (Fujita and Newberry, 1982;Ustritsky and Khramov, 1987;Zonenshain et al, 1990;Golonka et al, 1994), as well as rare geological observations (Lychagin et al, 1991;Cecile et al, 1991;Drachev and Savostin, 1993). However, the recent studies on Bolshoi Lyakhovsky Island (Kuz'michev et al, 2005a) cast doubt on the Paleozoic age of the ophiolites of the Shalaurova terrane (Drachev and Savostin, 1993).…”

Section: Geological Frameworkmentioning

confidence: 99%

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South Anyui suture: tectono-stratigraphy, deformations, and principal tectonic events

Соколов

Bondarenko²,

Layer

et al. 2009

Stephan Mueller Spec. Publ. Ser.

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Abstract. Geochronologic and structural data from the terranes of the South Anyui suture zone record a protracted deformational history before, during and after an Early Cretaceous collision of the passive margin of the Chukotka-Arctic Alaska continental block with the active continental margin of the North Asian continent. Preceding this collision, the island arc complexes of the Yarakvaam terrane on the northern margin of the North Asian craton record Early Carboniferous to Neocomian ages in ophiolite, sedimentary, and volcanic rocks. Triassic to Jurassic amphibolites constrain the timing of subduction and intraoceanic deformation along this margin. The protracted (Neocomian to Aptian) collision of the Chukotka passive margin with the North Asian continent is preserved in a range of structural styles including first north verging folding, then south verging folding, and finally late collisional dextral strike slip motions which likely record a change from orthogonal collision to oblique collision. Due to this collision, the southern passive margin of Chukotka was overthrust by tectonic nappes composed of tectono-stratigraphic complexes of the South Anyui terrane. Greenschists with ages of 115-119 Ma are related to the last stages of this collision. The postcollisional orogenic stage (Albian to Cenomanian) is characterized by sinistral strike slip faults and an extensional environment.

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Section: Geological Frameworkmentioning

confidence: 99%

Section: Geological Frameworkmentioning

confidence: 99%

South Anyui suture: tectono-stratigraphy, deformations, and principal tectonic events

Соколов

Bondarenko²,

Layer

et al. 2009

Stephan Mueller Spec. Publ. Ser.

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“…Fujita and Newberry, 1982;Zonenshain et al, 1990;Parfenov, 1991;Fujita et al, 1997;Khain, 1994;Drachev et al, 1998;Fig. 1).…”

Section: Geological Settingmentioning

confidence: 99%

“…Lyakhov Domain comprises the Lyakhov Islands and Stolbovoi Island including the South Anyui suture. It is characterized by thrusted sequences of Late Paleozoic ophiolites, Permian to Triassic clastic turbidites, Upper Jurassic to Lower Cretaceous basaltic rocks, and intruded granites and granodiorites (Fujita and Newberry, 1982;Fujita and Cook, 1990;Drachev and Savostin, 1993;Drachev et al, 1998).…”

Section: Geological Settingmentioning

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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“…The onshore structures were adopted from the geological map (Nalivkin, 1983). on the North by the Arctic Ocean Basin and are surrounded by Phanerozoic fold belts: the Chukchi fold belt, which includes the mainland, Wrangel Island, and associated Chukchi Sea shelf, the New Siberian fold belt, which includes the New Siberian Islands and surrounding Laptev Sea-East Siberian Sea continental shelves, and the Taimyr, Verkhoyansk and Cherski fold belts (e.g., Drachev et al, 1998;Fujita and Newberry, 1982;Fujita et al, 1997;Khain, 1994;Parfenov, 1991;Zonenshain et al, 1990;Fig. 12.1).…”

Section: Tectonic Setting and Structure Of The Shelvesmentioning

confidence: 99%