title: Origin of the coarse-grained (> 1 cm) clasts from the Mendeleev Ridge area (Central Arctic Ocean)
metadata.name: dc.contributor.author
metadata.value: Krylov, Alexey A.
metadata.lang: -
metadata.name: dc.contributor.author
metadata.value: Matthiessen, Jens
metadata.lang: -
metadata.name: dc.contributor.author
metadata.value: Nam, Seung-Il
metadata.lang: -
metadata.name: dc.contributor.author
metadata.value: Stein, Ruediger
metadata.lang: -
metadata.name: dc.contributor.author
metadata.value: Bazhenova, Evgenia A.
metadata.lang: -
metadata.name: dc.contributor.author
metadata.value: Mirolubova, Elena S.
metadata.lang: -
metadata.name: dc.contributor.author
metadata.value: Gusev, Evgeny A.
metadata.lang: -
metadata.name: dc.contributor.author
metadata.value: Malyshev, Sergey A.
metadata.lang: -
metadata.name: dc.contributor.author
metadata.value: Makarov, Alexander S.
metadata.lang: -
metadata.name: dc.date.accessioned
metadata.value: 2021-02-11T20:44:21Z
metadata.lang: -
metadata.name: dc.date.available
metadata.value: 2021-02-11T20:44:21Z
metadata.lang: -
metadata.name: dc.date.issued
metadata.value: 2020-12
metadata.lang: -
metadata.name: dc.identifier.citation
metadata.value: Krylov, A. A., Matthiessen, J., Nam, S.-I., Stein, R., Bazhenova, E. A., Mirolubova, E. S., Gusev, E. A., Malyshev, S. A., Makarov, A. S. (2020). Origin of the coarse-grained (> 1 cm) clasts from the Mendeleev Ridge area (Central Arctic Ocean). Vestnik of Saint Petersburg University. Earth Sciences, 65 (4), 795–809.
metadata.lang: en_GB
metadata.name: dc.identifier.other
metadata.value: https://doi.org/10.21638/spbu07.2020.411
metadata.lang: -
metadata.name: dc.identifier.uri
metadata.value: http://hdl.handle.net/11701/23895
metadata.lang: -
metadata.name: dc.description.abstract
metadata.value: The morphometric and petrographic characteristics of coarse-grained clasts (> 1 cm) sampled
  from sediments of the Amerasian Basin, Central Arctic Ocean, were studied. Most of the
  clasts are represented by dolomites (46.4 %), sandstones (22.8 %) and limestones (19.8 %); the
  amount of other rock fragments (chert, shale, igneous) is about 10 %. A variety of lithological
  types were identified among the studied rock fragments. Limestones and dolomitic limestones
  often contain fragments of fauna. The majority of clasts are poorly rounded and characterized
  by a wide variety of shapes. More than 50 % of the studied clasts have a size of 1–2 cm, 25 %
  are 2–3 cm, and larger clasts only occur in insignificant amounts. Geophysical surveys across
  the sampling sites showed a lack of bedrock outcrops, so the studied coarse-grained clasts are
  not of local origin. It is concluded that they were predominantly delivered from the Canadian
  Arctic Archipelago (likely from the platform area, e. g., Victoria Island), mainly due to iceberg
  rafting during deglaciation periods. The maximum possible contribution of clasts from Siberian
  sources is less than 23 %. The distribution of coarse-grained clasts argues for the existence
  of quite a stable ice drift path in the past, which is similar to the modern Beaufort Gyre.
metadata.lang: en_GB
metadata.name: dc.language.iso
metadata.value: en
metadata.lang: en_GB
metadata.name: dc.publisher
metadata.value: St Petersburg State University
metadata.lang: en_GB
metadata.name: dc.relation.ispartofseries
metadata.value: Vestnik of St Petersburg University. Earth Sciences;Volume 65; Issue 4
metadata.lang: -
metadata.name: dc.subject
metadata.value: Mendeleev Ridge
metadata.lang: en_GB
metadata.name: dc.subject
metadata.value: Arctic Ocean
metadata.lang: en_GB
metadata.name: dc.subject
metadata.value: dropstones
metadata.lang: en_GB
metadata.name: dc.subject
metadata.value: iceberg rafting
metadata.lang: en_GB
metadata.name: dc.title
metadata.value: Origin of the coarse-grained (> 1 cm) clasts from the Mendeleev Ridge area (Central Arctic Ocean)
metadata.lang: en_GB
metadata.name: dc.type
metadata.value: Article
metadata.lang: en_GB
resources.filename: 795-809.pdf
resources.url: https://dspace.spbu.ru/bitstream/11701/23895/1/795-809.pdf
resources.format: Adobe PDF
resources.size: 2,59 MB