Stratigraphy and structure of the central East Sakhalin accretionary wedge (Eastern Russia)

Zyabrev, S. V.

doi:10.1134/s1819714011040087

Cited by 25 publications

(27 citation statements)

References 15 publications

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“…The Tonin‐Aniva terrane, composed of Aptian‐Cenomanian turbidites and olistostromes with lenses of Middle Triassic to Lower Cretaceous oceanic tholeiites and (sub)alkaline basalts, forms a subduction‐related trench‐fill terrane similar to the Hidaka belt (Nokleberg et al, ; Parfenov et al, ; Zharov, ). To the north, the East Sakhalin terrane forms a middle Cretaceous to Paleocene accretionary complex, hosting Upper Cretaceous‐Paleocene metamorphic rocks and an ophiolitic mélange with tectonic slices of Permian‐Late Cretaceous rocks (Khanchuk, ; Liao et al, ; Zhao et al, ; Zharov, ; Zyabrev, ; Figure ).…”

Section: Reviewmentioning

confidence: 99%

“…Remnants of an Upper Cretaceous‐Paleogene intraoceanic island arc and accretionary complex equivalent to the Nemuro and Tokoro belts are found on the eastern parts of the Tonin‐Aniva and Terpeniya peninsulas and along east Sakhalin (Figures , , and ; e.g., Grannik, ; Nokleberg et al, ; Parfenov et al, ; Zharov, ). Santonian‐Campanian and Maastrichtian‐Danian volcanic and volcanosedimentary rocks of the Terpeniya terrane are found on the Terpeniya peninsula, east of the East Sakhalin terrane (Khanchuk, ; Nokleberg et al, ; Terekhov et al, ; Zyabrev, ; Figure ), and likely continue offshore (Terekhov et al, ). These sequences are straightforwardly correlated with the Nemuro belt of eastern Hokkaido, suggesting that they formed part of a contiguous intraoceanic island‐arc now preserved in an area extending from eastern Sakhalin to eastern Hokkaido (Bazhenov et al, ; Grannik, ; Nokleberg et al, ; Parfenov et al, ; Ueda, ).…”

Section: Reviewmentioning

confidence: 99%

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Reconstruction of Subduction and Back‐Arc Spreading in the NW Pacific and Aleutian Basin: Clues to Causes of Cretaceous and Eocene Plate Reorganizations

2019

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The Eocene (~50–45 Ma) major absolute plate motion change of the Pacific plate forming the Hawaii‐Emperor bend is thought to result from inception of Pacific plate subduction along one of its modern western trenches. Subduction is suggested to have started either spontaneously, or result from subduction of the Izanagi‐Pacific mid‐ocean ridge, or from subduction polarity reversal after collision of the Olyutorsky arc that was built on the Pacific plate with NE Asia. Here we provide a detailed plate‐kinematic reconstruction of back‐arc basins and accreted terranes in the northwest Pacific region, from Japan to the Bering Sea, since the Late Cretaceous. We present a new tectonic reconstruction of the intraoceanic Olyutorsky and Kronotsky arcs, which formed above two adjacent, oppositely dipping subduction zones at ~85 Ma within the north Pacific region, during another Pacific‐wide plate reorganization. We use our reconstruction to explain the formation of the submarine Shirshov and Bowers Ridges and show that if marine magnetic anomalies reported from the Aleutian Basin represent magnetic polarity reversals, its crust most likely formed in an ~85‐ to 60‐Ma back‐arc basin behind the Olyutorsky arc. The Olyutorsky arc was then separated from the Pacific plate by a spreading ridge, so that the ~55‐ to 50‐Ma subduction polarity reversal that followed upon Olyutorsky‐NE Asia collision initiated subduction of a plate that was not the Pacific. Hence, this polarity reversal may not be a straightforward driver of the Eocene Pacific plate motion change, whose causes remain enigmatic.

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Section: Reviewmentioning

confidence: 99%

Section: Reviewmentioning

confidence: 99%

Reconstruction of Subduction and Back‐Arc Spreading in the NW Pacific and Aleutian Basin: Clues to Causes of Cretaceous and Eocene Plate Reorganizations

2019

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“…(a) Plate configuration and location of the Sakhalin Island in Northeast Asia (modified after Seno et al, , and Rodnikov et al, ). (b) Principal tectonostratigraphic terranes of the Sikhote‐Alin region and the Sakhalin and Hokkaido Islands (after Golozubov, ; Zyabrev, ), showing the accretionary terranes of different ages. For the Sakhalin Island, West Sakhalin fore‐arc basin and East Sakhalin accretionary complex and S‐type granitic plutons are highlighted (modified after Zyabrev, ).…”

Section: Introductionmentioning

confidence: 99%

Timing of Okhotsk Sea Plate Collision With Eurasia Plate: Zircon U‐Pb Age Constraints From the Sakhalin Island, Russian Far East

et al. 2018

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The Late Mesozoic to Cenozoic evolution of Northeast Asia involves successive subduction of the Pacific oceanic crust and amalgamation of the Eurasia, North American, and Okhotsk Sea Plates. The timing of plate collision is essential for understanding the tectonic evolution of Northeast Asia. In this study, we focus on the Okhotsk Sea Plate collision with the Eurasia Plate along the Sakhalin Island, Russian Far East, which is a highly controversial problem, especially about the timing of collision. In order to determine exact timing for this collision, we report zircon U‐Pb data from both the East Sakhalin accretionary complex and postcollisional granitic plutons in the Sakhalin Island. Detrital zircon data from four metasedimentary rocks show that the Sikhote‐Alin orogenic belt is the main provenance for the East Sakhalin accretionary complex. Meanwhile, the youngest detrital zircon age constrains the maximum depositional age of East Sakhalin accretionary complex later than 49 Ma. Both Langeri and Val'za plutons are made of peraluminous S‐type granite. Four granitic samples yielded consistent ages at 36–38 Ma, indicating that both plutons were emplaced at the middle Eocene. Their generation is considered to have been derived through crustal anatexis of accretionary wedge in the lower crust shortly after tectonic thickening caused by the Okhotsk Sea Plate collision with the Eurasia Plate. Consequently, our age data constrain that the Okhotsk Sea Plate and Eurasia Plate collision occurred in the middle Eocene between 49 and 38 Ma. This age range is consistent with late Eocene uncomformity identified in the Sakhalin Island and Okhotsk Sea.

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“… (a) Index map of the mid C retaceous accretionary system in eastern R ussia (after Z yabrev ) showing the positions of the geological map in Figure 1b and studied sections in Figure 1d. Letters ‘ L ’ and ‘ P ’ in the centre of the contour of S akhalin I sland indicate the sections along the R iver ( R .)…”

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confidence: 99%

“…(), U nderwood et al . () and Z yabrev (). (b) Simplified route map of the studied sections along R .…”

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confidence: 99%

Seamount subduction likely provoked prolific mass wasting on the slope in the central part of the East Sakhalin accretionary wedge, eastern Russia

Zyabrev

2015

Island Arc

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Stratigraphy and structure of the central East Sakhalin accretionary wedge (Eastern Russia)

Cited by 25 publications

References 15 publications

Reconstruction of Subduction and Back‐Arc Spreading in the NW Pacific and Aleutian Basin: Clues to Causes of Cretaceous and Eocene Plate Reorganizations

Reconstruction of Subduction and Back‐Arc Spreading in the NW Pacific and Aleutian Basin: Clues to Causes of Cretaceous and Eocene Plate Reorganizations

Timing of Okhotsk Sea Plate Collision With Eurasia Plate: Zircon U‐Pb Age Constraints From the Sakhalin Island, Russian Far East

Seamount subduction likely provoked prolific mass wasting on the slope in the central part of the East Sakhalin accretionary wedge, eastern Russia

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