Arctic lithosphere — A review

Pease, Victoria; Drachev, Sergey S.; Stephenson, Randell; Zhang, Xiaojing

doi:10.1016/j.tecto.2014.05.033

Cited by 109 publications

(91 citation statements)

References 138 publications

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“…No boundaries at all are revealed along the basement of the East Siberian Shelf and the Lomonosov Ridge. A possible slip fault between the Lomonosov Ridge and the Siberian Shelf is discussed in [Pease et al, 2014;Doré et al, 2016]. In fact, structures of probable transpression are seen on some seismic lines in the zone of the slope [Gaina et al, 2015] (Figs.…”

Section: рис 17mentioning

confidence: 99%

“…The Eurasian Basin has oceanic crust. Opening of the ocean started approximately at the Paleocene and Eocene boundary (about 56 Ma) and continues till the present time [Glebovsky et al, 2006;Gaina et al, 2014;Pease et al, 2014;Nikishin et al, 2014].…”

Section: Structure Of the Deep-water Part Of The Arctic Oceanmentioning

confidence: 99%

“…1) [e.g., Laverov et al, 2013;Vernikovsky et al, 2013;Gaina et al, 2014;Pease et al, 2014;Nikishin et al, 2014;Petrov et al, 2016;Drachev, 2016]. Different versions of the stratigraphy of the ocean's sedimentary cover were presented in [Kim, Glezer, 2007;Backman et al, 2008;Bruvoll et al, 2010Bruvoll et al, , 2012Rekant, Gusev, 2012;Mosher et al, 2012;Døssing et al, 2013;Dobretsov et al, 2013;Weigelt et al, 2014;Jokat, Ickrath, 2015;Nikishin et al, 2014;Brumley, 2014;Rekant et al, 2015;Evangelatos, Mosher, 2016].…”

Section: Introductionmentioning

confidence: 99%

“…An abandoned Mesozoic (Early Cretaceous ?) oceanic rift is known along the axis of the Canada Basin [Pease et al, 2014;Chian et al, 2016]. Intraplate normal faults are known on the Lomonosov and Mendeleev Ridges [Bruvoll et al, 2010;Nikishin et al, 2014;Brumley, 2014].…”

Section: Introductionmentioning

confidence: 99%

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Rift systems of the Russian Eastern Arctic shelf and Arctic deep water basins: link between geological history and geodynamics

Nikishin¹,

Petrov²,

Малышев³

et al. 2017

Geodin. tektonofiz.

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Abstract:In our study, we have developed a new tectonic scheme of the Arctic Ocean, which is based mainly on seismic profiles obtained in the Arctic-2011, Arctic-2012 and Arctic-2014 Projects implemented in Russia. Having interpreted many seismic profiles, we propose a new seismic stratigraphy of the Arctic Ocean. Our main conclusions are drawn from the interpretation of the seismic profiles and the analysis of the regional geological data. The results of our study show that rift systems within the Laptev, the East Siberian and the Chukchi Seas were formed not earlier than Aptian. The geological structure of the Eurasian, Podvodnikov, Toll and Makarov Basins is described in this paper. Having synthesized all the available data on the study area, we propose the following model of the geological history of the Arctic Ocean: 1. The Canada Basin formed till the Aptian (probably, during Hauterivian-Barremian time). 2. During the Aptian-Albian, large-scale tectonic and magmatic events took place, including plume magmatism in the area of the De Long Islands, Mendeleev Ridge and other regions. Continental rifting started after the completion of the Verkhoyansk-Chukotka orogenу, and rifting occurred on the shelf of the Laptev, East Siberian, North Chukchi and South Chukchi basins, and the Chukchi Plateau; simultaneously, continental rifting started in the Podvodnikov and Toll basins. 3. Perhaps the Late Cretaceous rifting continued in the Podvodnikov and Toll basins. 4. At the end of the Late Cretaceous and Paleocene, the Makarov basin was formed by rifting, although local spreading of oceanic crust during its formation cannot be excluded. 5. The Eurasian Basin started to open in the Early Eocene. We, of course, accept that our model of the geological history of the Arctic Ocean, being preliminary and debatable, may need further refining. In this paper, we have shown a link between the continental rift systems on the shelf and the formation history of the Arctic Ocean. Аннотация: На основе российских сейсмических профилей, полученных в рамках проектов Арктика-2011, Арктика-2012 и Арктика-2014, составлена новая тектоническая схема Арктического океана. Приведены ре-зультаты интерпретации многих сейсмических профилей, представлена новая сейсмостратиграфия для Арк-тического океана. Основные выводы сделаны на основе интерпретации сейсмических профилей и на базе анализа региональных геологических данных. Показано, что рифтовые системы в пределах морей Лаптевых, Восточно-Сибирского и Чукотского были образованы не раньше аптского времени. Дано описание геологиче-ского строения бассейнов Евразийского, Подводников, Толля, Макарова и других. На основе синтеза всех дан-ных получена следующая модель истории Арктического океана. 1. Канадский бассейн был образован до апт-ского времени (вероятно, в готериве-барреме). 2. В апте-альбе были крупномасштабные тектонические и магматические события: плюмовый магматизм был в районе поднятия Де-Лонга, на хребте Менделеева и в других областях. Континентальный рифтинг произошел сразу после оконча...

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Section: рис 17mentioning

confidence: 99%

Section: Structure Of the Deep-water Part Of The Arctic Oceanmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Rift systems of the Russian Eastern Arctic shelf and Arctic deep water basins: link between geological history and geodynamics

Nikishin¹,

Petrov²,

Малышев³

et al. 2017

Geodin. tektonofiz.

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“…Note the oblique orientation relative to the Gakkel Ridge of two features visible in the gravity data (labelled Ra-Ridge in the Amundsen Basin, and Rnridge in the Nansen Basin). The contour of these features and adjacent contours are shown in white in d (see review papers by [18,31,34]). It is now postulated that the oldest oceanic basin-the Canada Basin-is formed by all three types of crusts mentioned above (e.g., [32]).…”

Section: Tectonic Setting Of the Eastern Eurasian Basinmentioning

confidence: 99%

Ultraslow spreading, ridge relocation and compressional events in the East Arctic region: A link to the Eurekan orogeny?

Gaina

Nikishin

Petrov³

2015

Arktos

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New and available geophysical data from the Eastern Arctic (around the Siberian tip of the Lomonosov Ridge) indicate a change in the tectonic regime at the Eocene time. Oceanic crust identified on the new seismic reflection data in the Amundsen Basin displays an asymmetric fabric also visible in the gravity and magnetic gridded data. Tentative dating of the weak magnetic anomalies suggests asymmetric spreading or ridge relocation from ca. 49 to 33 Ma. Three seismic reflection transects through the Laptev Sea, Lomonosov Ridge and adjacent basins image several compressional features, most likely initiated in the Eocene. According to a regional plate tectonic model, the Greenland plate has pushed the Lomonosov Ridge by ca. 30 mm/year from 54 to 49 Ma and by ca. 13.5 mm/year afterwards, until Early Miocene. We suggest that intraplate stresses triggered by the Eocene to Oligocene northern movement of the Greenland plate and subsequent collision with the North American plate that created the Eurekan deformation, have propagated through the Arctic region and affected part of the East Siberian Shelf, Podvodnikov Basin, Laptev Sea and modified the spreading direction in the eastern Eurasia Basin. We estimate that these changes started at the same time as the peak compressional phase in North Greenland dated 49-47 Ma and lasted until Oligocene time when the large-scale tectonic regime changed by incorporating Greenland into the North American plate.

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Surface heat flow measurements from the East Siberian continental slope and southern Lomonosov Ridge, Arctic Ocean

O’Regan

Preto

Stranne

et al. 2016

Geochem. Geophys. Geosyst.

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Surface heat flow data in the Arctic Ocean are needed to assess hydrocarbon and methane hydrate distributions, and provide constraints into the tectonic origins and nature of underlying crust. However, across broad areas of the Arctic, few published measurements exist. This is true for the outer continental shelf and slope of the East Siberian Sea, and the adjoining deep water ridges and basins. Here we present 21 new surface heat flow measurements from this region of the Arctic Ocean. On the Southern Lomonosov Ridge, the average measured heat flow, uncorrected for effects of sedimentation and topography, is 57 6 4 mW/m 2 (n 5 4). On the outer continental shelf and slope of the East Siberian Sea (ESS), the average is 57 6 10 mW/m 2 (n 5 16). An anomalously high heat flow of 203 6 28 mW/m 2 was measured at a single station in the Herald Canyon. With the exception of this high heat flow, the new data from the ESS are consistent with predictions for thermally equilibrated lithosphere of continental origin that was last affected by thermotectonic processes in the Cretaceous to early Cenozoic. Variability within the data likely arises from differences in radiogenic heat production within the continental crust and overlying sediments. This can be further explored by comparing the data with geophysical constraints on sediment and crustal thicknesses.

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Arctic lithosphere — A review

Cited by 109 publications

References 138 publications

Rift systems of the Russian Eastern Arctic shelf and Arctic deep water basins: link between geological history and geodynamics

Rift systems of the Russian Eastern Arctic shelf and Arctic deep water basins: link between geological history and geodynamics

Ultraslow spreading, ridge relocation and compressional events in the East Arctic region: A link to the Eurekan orogeny?

Surface heat flow measurements from the East Siberian continental slope and southern Lomonosov Ridge, Arctic Ocean

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