Ändra sökning
RefereraExporteraLänk till posten
Permanent länk

Direktlänk
Referera
Referensformat
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Annat format
Fler format
Språk
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Annat språk
Fler språk
Utmatningsformat
  • html
  • text
  • asciidoc
  • rtf
Late Jurassic–Early Cretaceous hydrocarbon seep boulders from NovayaZemlya and their faunas
Naturhistoriska riksmuseet, Enheten för paleobiologi.
Visa övriga samt affilieringar
2015 (Engelska)Ingår i: Palaeogeography, Palaeoclimatology, Palaeoecology, ISSN 0031-0182, E-ISSN 1872-616X, Vol. 436, s. 231-244Artikel i tidskrift (Refereegranskat) Published
Abstract [en]

The paper describes Late Jurassic–Early Cretaceous seep carbonate boulders from the Russian Arctic island of Novaya Zemlya, collected in 1875 by A.E. Nordenskiöld during his expedition to Siberia. The carbonates are significantly depleted in heavy carbon isotopes (δ13C values as low as ca. − 40‰) and show textures typical for carbonates formed under the influence of hydrocarbons, such as fibrous carbonate cements and corrosion cavities. The rocks contain index fossils of Late Oxfordian–Early Kimmeridgian, Late Tithonian (Jurassic) and latest Berriasian–Early Valanginian (Cretaceous) age. The fossil fauna is species rich and dominated by molluscs, with subordinate brachiopods, echinoderms, foraminifera, serpulids and ostracods. Most of the species, including two chemosymbiotic bivalve species, likely belong to the ‘background’ fauna. Only a species of a hokkaidoconchid gastropod, and a possible abyssochrysoid gastropod, can be interpreted as restricted to the seep environment. Other seep faunas with similar taxonomic structure are suggestive of rather shallow water settings, but in case of Novaya Zemlya seep faunas such structure might result also from high northern latitude.

Ort, förlag, år, upplaga, sidor
Elsevier, 2015. Vol. 436, s. 231-244
Nyckelord [en]
Hydrocarbon seeps, Jurassic, Cretaceous, Boreal, Molluscs, Novaya Zemlya
Nationell ämneskategori
Annan geovetenskap och miljövetenskap
Forskningsämne
Ekosystem och arthistoria
Identifikatorer
URN: urn:nbn:se:nrm:diva-1303DOI: 10.1016/j.palaeo.2015.06.036OAI: oai:DiVA.org:nrm-1303DiVA, id: diva2:854715
Tillgänglig från: 2015-09-17 Skapad: 2015-09-17 Senast uppdaterad: 2017-12-04Bibliografiskt granskad

Open Access i DiVA

Fulltext saknas i DiVA

Övriga länkar

Förlagets fulltext
Av organisationen
Enheten för paleobiologi
I samma tidskrift
Palaeogeography, Palaeoclimatology, Palaeoecology
Annan geovetenskap och miljövetenskap

Sök vidare utanför DiVA

GoogleGoogle Scholar

doi
urn-nbn

Altmetricpoäng

doi
urn-nbn
Totalt: 42 träffar
RefereraExporteraLänk till posten
Permanent länk

Direktlänk
Referera
Referensformat
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Annat format
Fler format
Språk
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Annat språk
Fler språk
Utmatningsformat
  • html
  • text
  • asciidoc
  • rtf