Early Cretaceous palynomorphes from ODP Hole 113-692B, supplement to: Mohr, Barbara A R (1990): Early Cretaceous palynomorphs from ODP Sites 692 and 693, the Weddell Sea, Antarctica. In: Barker, PF, Kennett, JP; et al. (eds.), Proceedings of the Ocean Drilling Program, Scientific Results, College Station, TX (Ocean Drilling Program), 113, 449-464
Detailed descriptions of in situ ?Valanginian to Albian Antarctic palynofloras are presented from Weddell Sea claystones with high percentages of organic matter ("black shales") and intercalated volcanic ash layers. The claystones were recovered from two sites (ODP Leg 113, Sites 692 and 6...
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ftdatacite:10.1594/pangaea.746424 2023-05-15T13:46:22+02:00 Early Cretaceous palynomorphes from ODP Hole 113-692B, supplement to: Mohr, Barbara A R (1990): Early Cretaceous palynomorphs from ODP Sites 692 and 693, the Weddell Sea, Antarctica. In: Barker, PF, Kennett, JP; et al. (eds.), Proceedings of the Ocean Drilling Program, Scientific Results, College Station, TX (Ocean Drilling Program), 113, 449-464 Mohr, Barbara A R 1990 application/zip https://dx.doi.org/10.1594/pangaea.746424 https://doi.pangaea.de/10.1594/PANGAEA.746424 en eng PANGAEA - Data Publisher for Earth & Environmental Science https://dx.doi.org/10.2973/odp.proc.sr.113.207.1990 Creative Commons Attribution 3.0 Unported https://creativecommons.org/licenses/by/3.0/legalcode cc-by-3.0 CC-BY Drilling/drill rig Leg113 Joides Resolution Ocean Drilling Program ODP Supplementary Collection of Datasets Collection article 1990 ftdatacite https://doi.org/10.1594/pangaea.746424 https://doi.org/10.2973/odp.proc.sr.113.207.1990 2022-02-08T16:02:21Z Detailed descriptions of in situ ?Valanginian to Albian Antarctic palynofloras are presented from Weddell Sea claystones with high percentages of organic matter ("black shales") and intercalated volcanic ash layers. The claystones were recovered from two sites (ODP Leg 113, Sites 692 and 693) on the continental margin of Dronning Maud Land. Palynological investigations of these Cretaceous sediments revealed a ?Valanginian-Hauterivian age for the Site 692 sediments and an Aptian-Albian age for Site 693. This paper is focused on the palynomorphs of Site 692. Miospores, dinoflagellate cysts, and acritarchs are listed and compared with early Cretaceous microfloras from the Antarctic Peninsula, Australia, and South America. The dinocyst assemblage of Site 692 seems to be very similar in composition to an assemblage from the South Shetlands (?Valanginian-Hauterivian-Barremian). It also agrees well with associations described from early Early Cretaceous sequences from the Perth Basin, southwestern Australia. According to the Australian miospore zonation schemes, the sporomorph flora from Site 692 belongs to the South Australian Foraminisporis wonthaggiensis Zone (early Valanginian to Hauterivian) or the lower part of the dinocyst Muderongia Superzone (Valanginian to Hauterivian). Article in Journal/Newspaper Antarc* Antarctic Antarctic Peninsula Antarctica Dronning Maud Land Weddell Sea DataCite Metadata Store (German National Library of Science and Technology) Antarctic Antarctic Peninsula Dronning Maud Land Kennett ENVELOPE(-65.167,-65.167,-67.117,-67.117) The Antarctic Weddell Weddell Sea |
institution |
Open Polar |
collection |
DataCite Metadata Store (German National Library of Science and Technology) |
op_collection_id |
ftdatacite |
language |
English |
topic |
Drilling/drill rig Leg113 Joides Resolution Ocean Drilling Program ODP |
spellingShingle |
Drilling/drill rig Leg113 Joides Resolution Ocean Drilling Program ODP Mohr, Barbara A R Early Cretaceous palynomorphes from ODP Hole 113-692B, supplement to: Mohr, Barbara A R (1990): Early Cretaceous palynomorphs from ODP Sites 692 and 693, the Weddell Sea, Antarctica. In: Barker, PF, Kennett, JP; et al. (eds.), Proceedings of the Ocean Drilling Program, Scientific Results, College Station, TX (Ocean Drilling Program), 113, 449-464 |
topic_facet |
Drilling/drill rig Leg113 Joides Resolution Ocean Drilling Program ODP |
description |
Detailed descriptions of in situ ?Valanginian to Albian Antarctic palynofloras are presented from Weddell Sea claystones with high percentages of organic matter ("black shales") and intercalated volcanic ash layers. The claystones were recovered from two sites (ODP Leg 113, Sites 692 and 693) on the continental margin of Dronning Maud Land. Palynological investigations of these Cretaceous sediments revealed a ?Valanginian-Hauterivian age for the Site 692 sediments and an Aptian-Albian age for Site 693. This paper is focused on the palynomorphs of Site 692. Miospores, dinoflagellate cysts, and acritarchs are listed and compared with early Cretaceous microfloras from the Antarctic Peninsula, Australia, and South America. The dinocyst assemblage of Site 692 seems to be very similar in composition to an assemblage from the South Shetlands (?Valanginian-Hauterivian-Barremian). It also agrees well with associations described from early Early Cretaceous sequences from the Perth Basin, southwestern Australia. According to the Australian miospore zonation schemes, the sporomorph flora from Site 692 belongs to the South Australian Foraminisporis wonthaggiensis Zone (early Valanginian to Hauterivian) or the lower part of the dinocyst Muderongia Superzone (Valanginian to Hauterivian). |
format |
Article in Journal/Newspaper |
author |
Mohr, Barbara A R |
author_facet |
Mohr, Barbara A R |
author_sort |
Mohr, Barbara A R |
title |
Early Cretaceous palynomorphes from ODP Hole 113-692B, supplement to: Mohr, Barbara A R (1990): Early Cretaceous palynomorphs from ODP Sites 692 and 693, the Weddell Sea, Antarctica. In: Barker, PF, Kennett, JP; et al. (eds.), Proceedings of the Ocean Drilling Program, Scientific Results, College Station, TX (Ocean Drilling Program), 113, 449-464 |
title_short |
Early Cretaceous palynomorphes from ODP Hole 113-692B, supplement to: Mohr, Barbara A R (1990): Early Cretaceous palynomorphs from ODP Sites 692 and 693, the Weddell Sea, Antarctica. In: Barker, PF, Kennett, JP; et al. (eds.), Proceedings of the Ocean Drilling Program, Scientific Results, College Station, TX (Ocean Drilling Program), 113, 449-464 |
title_full |
Early Cretaceous palynomorphes from ODP Hole 113-692B, supplement to: Mohr, Barbara A R (1990): Early Cretaceous palynomorphs from ODP Sites 692 and 693, the Weddell Sea, Antarctica. In: Barker, PF, Kennett, JP; et al. (eds.), Proceedings of the Ocean Drilling Program, Scientific Results, College Station, TX (Ocean Drilling Program), 113, 449-464 |
title_fullStr |
Early Cretaceous palynomorphes from ODP Hole 113-692B, supplement to: Mohr, Barbara A R (1990): Early Cretaceous palynomorphs from ODP Sites 692 and 693, the Weddell Sea, Antarctica. In: Barker, PF, Kennett, JP; et al. (eds.), Proceedings of the Ocean Drilling Program, Scientific Results, College Station, TX (Ocean Drilling Program), 113, 449-464 |
title_full_unstemmed |
Early Cretaceous palynomorphes from ODP Hole 113-692B, supplement to: Mohr, Barbara A R (1990): Early Cretaceous palynomorphs from ODP Sites 692 and 693, the Weddell Sea, Antarctica. In: Barker, PF, Kennett, JP; et al. (eds.), Proceedings of the Ocean Drilling Program, Scientific Results, College Station, TX (Ocean Drilling Program), 113, 449-464 |
title_sort |
early cretaceous palynomorphes from odp hole 113-692b, supplement to: mohr, barbara a r (1990): early cretaceous palynomorphs from odp sites 692 and 693, the weddell sea, antarctica. in: barker, pf, kennett, jp; et al. (eds.), proceedings of the ocean drilling program, scientific results, college station, tx (ocean drilling program), 113, 449-464 |
publisher |
PANGAEA - Data Publisher for Earth & Environmental Science |
publishDate |
1990 |
url |
https://dx.doi.org/10.1594/pangaea.746424 https://doi.pangaea.de/10.1594/PANGAEA.746424 |
long_lat |
ENVELOPE(-65.167,-65.167,-67.117,-67.117) |
geographic |
Antarctic Antarctic Peninsula Dronning Maud Land Kennett The Antarctic Weddell Weddell Sea |
geographic_facet |
Antarctic Antarctic Peninsula Dronning Maud Land Kennett The Antarctic Weddell Weddell Sea |
genre |
Antarc* Antarctic Antarctic Peninsula Antarctica Dronning Maud Land Weddell Sea |
genre_facet |
Antarc* Antarctic Antarctic Peninsula Antarctica Dronning Maud Land Weddell Sea |
op_relation |
https://dx.doi.org/10.2973/odp.proc.sr.113.207.1990 |
op_rights |
Creative Commons Attribution 3.0 Unported https://creativecommons.org/licenses/by/3.0/legalcode cc-by-3.0 |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1594/pangaea.746424 https://doi.org/10.2973/odp.proc.sr.113.207.1990 |
_version_ |
1766241021969039360 |