Biostratigraphy of selected taxa and radiolarian events in ODP Hole 183-1138A sediments
Well-preserved radiolarian assemblages of late middle Miocene to early Pliocene age are found in Ocean Drilling Program (ODP) Hole 1138A (Cores 183-1138A-12R to 20R), which was rotary drilled into the Central Kerguelen Plateau. The faunas are typical for Antarctic assemblages of this time interval,...
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ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.785687 2024-09-15T17:40:20+00:00 Biostratigraphy of selected taxa and radiolarian events in ODP Hole 183-1138A sediments Vigour, Rachel Lazarus, David B LATITUDE: -53.551750 * LONGITUDE: 75.974880 * DATE/TIME START: 1999-01-07T23:30:00 * DATE/TIME END: 1999-01-31T06:15:00 2002 application/zip, 2 datasets https://doi.pangaea.de/10.1594/PANGAEA.785687 https://doi.org/10.1594/PANGAEA.785687 en eng PANGAEA https://doi.pangaea.de/10.1594/PANGAEA.785687 https://doi.org/10.1594/PANGAEA.785687 CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess Supplement to: Vigour, Rachel; Lazarus, David B (2002): Biostratigraphy of late Miocene-early Pliocene radiolarians from ODP Leg 183 Site 1138. In: Frey, FA; Coffin, MF; Wallace, PJ; Quilty, PG (eds.) Proceedings of the Ocean Drilling Program, Scientific Results, College Station, TX (Ocean Drilling Program), 183, 1-17, https://doi.org/10.2973/odp.proc.sr.183.007.2002 183-1138A DRILL Drilling/drill rig Indian Ocean Joides Resolution Leg183 Ocean Drilling Program ODP dataset publication series 2002 ftpangaea https://doi.org/10.1594/PANGAEA.78568710.2973/odp.proc.sr.183.007.2002 2024-07-24T02:31:21Z Well-preserved radiolarian assemblages of late middle Miocene to early Pliocene age are found in Ocean Drilling Program (ODP) Hole 1138A (Cores 183-1138A-12R to 20R), which was rotary drilled into the Central Kerguelen Plateau. The faunas are typical for Antarctic assemblages of this time interval, and the site appears to have been south of the Polar Front during the time period studied. Despite only moderate drilling recovery of the section, most late middle to early Pliocene radiolarian zones are present, although at the sample resolution used, subzones could not be identified. A significant discontinuity in the section is present at the boundary between lithologic Units I and II (between Cores 183-1138A-12R and 13R), corresponding to an interval from at least 4.6 to 6.1 Ma. Mixed late Miocene-early Pliocene assemblages are seen in the base of Core 183-1138A-12R (Sample 183-1138A-12R-3, 20 cm), and the overlying basal Pliocene Tau Zone appears to be absent. It cannot be determined if the discontinuity is due to incomplete recovery of the section and drilling disturbance or if it reflects a primary sedimentary structure - a hiatus or interval of condensed sedimentation. Other/Unknown Material Antarc* Antarctic PANGAEA - Data Publisher for Earth & Environmental Science ENVELOPE(75.974880,75.974880,-53.551750,-53.551750) |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
topic |
183-1138A DRILL Drilling/drill rig Indian Ocean Joides Resolution Leg183 Ocean Drilling Program ODP |
spellingShingle |
183-1138A DRILL Drilling/drill rig Indian Ocean Joides Resolution Leg183 Ocean Drilling Program ODP Vigour, Rachel Lazarus, David B Biostratigraphy of selected taxa and radiolarian events in ODP Hole 183-1138A sediments |
topic_facet |
183-1138A DRILL Drilling/drill rig Indian Ocean Joides Resolution Leg183 Ocean Drilling Program ODP |
description |
Well-preserved radiolarian assemblages of late middle Miocene to early Pliocene age are found in Ocean Drilling Program (ODP) Hole 1138A (Cores 183-1138A-12R to 20R), which was rotary drilled into the Central Kerguelen Plateau. The faunas are typical for Antarctic assemblages of this time interval, and the site appears to have been south of the Polar Front during the time period studied. Despite only moderate drilling recovery of the section, most late middle to early Pliocene radiolarian zones are present, although at the sample resolution used, subzones could not be identified. A significant discontinuity in the section is present at the boundary between lithologic Units I and II (between Cores 183-1138A-12R and 13R), corresponding to an interval from at least 4.6 to 6.1 Ma. Mixed late Miocene-early Pliocene assemblages are seen in the base of Core 183-1138A-12R (Sample 183-1138A-12R-3, 20 cm), and the overlying basal Pliocene Tau Zone appears to be absent. It cannot be determined if the discontinuity is due to incomplete recovery of the section and drilling disturbance or if it reflects a primary sedimentary structure - a hiatus or interval of condensed sedimentation. |
format |
Other/Unknown Material |
author |
Vigour, Rachel Lazarus, David B |
author_facet |
Vigour, Rachel Lazarus, David B |
author_sort |
Vigour, Rachel |
title |
Biostratigraphy of selected taxa and radiolarian events in ODP Hole 183-1138A sediments |
title_short |
Biostratigraphy of selected taxa and radiolarian events in ODP Hole 183-1138A sediments |
title_full |
Biostratigraphy of selected taxa and radiolarian events in ODP Hole 183-1138A sediments |
title_fullStr |
Biostratigraphy of selected taxa and radiolarian events in ODP Hole 183-1138A sediments |
title_full_unstemmed |
Biostratigraphy of selected taxa and radiolarian events in ODP Hole 183-1138A sediments |
title_sort |
biostratigraphy of selected taxa and radiolarian events in odp hole 183-1138a sediments |
publisher |
PANGAEA |
publishDate |
2002 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.785687 https://doi.org/10.1594/PANGAEA.785687 |
op_coverage |
LATITUDE: -53.551750 * LONGITUDE: 75.974880 * DATE/TIME START: 1999-01-07T23:30:00 * DATE/TIME END: 1999-01-31T06:15:00 |
long_lat |
ENVELOPE(75.974880,75.974880,-53.551750,-53.551750) |
genre |
Antarc* Antarctic |
genre_facet |
Antarc* Antarctic |
op_source |
Supplement to: Vigour, Rachel; Lazarus, David B (2002): Biostratigraphy of late Miocene-early Pliocene radiolarians from ODP Leg 183 Site 1138. In: Frey, FA; Coffin, MF; Wallace, PJ; Quilty, PG (eds.) Proceedings of the Ocean Drilling Program, Scientific Results, College Station, TX (Ocean Drilling Program), 183, 1-17, https://doi.org/10.2973/odp.proc.sr.183.007.2002 |
op_relation |
https://doi.pangaea.de/10.1594/PANGAEA.785687 https://doi.org/10.1594/PANGAEA.785687 |
op_rights |
CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1594/PANGAEA.78568710.2973/odp.proc.sr.183.007.2002 |
_version_ |
1810486345093611520 |