Occurence of foraminifera and other microfossils in sediment core CRP-2/2A (Table 1)
Sparse to moderately abundant foraminiferal assemblages from Oligocene and Lower Miocene sediments in the CRP-2/2A drillhole contain C.27 genera and 42 species of calcareous benthic foraminifera. No planktic or agglutinated taxa were observed. On the basis of their faunal characteristics, four Foram...
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ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.183510 2023-05-15T13:45:35+02:00 Occurence of foraminifera and other microfossils in sediment core CRP-2/2A (Table 1) Strong, C Percy Webb, Peter-Noel LATITUDE: -77.005983 * LONGITUDE: 163.719450 * DATE/TIME START: 1998-10-01T00:00:00 * DATE/TIME END: 1998-10-01T00:00:00 * MINIMUM ELEVATION: -177.9 m * MAXIMUM ELEVATION: -177.9 m 2000-03-16 text/tab-separated-values, 1117 data points https://doi.pangaea.de/10.1594/PANGAEA.183510 https://doi.org/10.1594/PANGAEA.183510 en eng PANGAEA https://doi.pangaea.de/10.1594/PANGAEA.183510 https://doi.org/10.1594/PANGAEA.183510 CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess CC-BY Supplement to: Strong, C Percy; Webb, Peter-Noel (2000): Oligocene and Miocene foraminifera from CRP-2/2A, Victoria Land Basin, Antarctica. Terra Antartica, 7(4), 461-472, hdl:10013/epic.28260.d001 14.2 km at 096° true from Cape Roberts Abundance estimate Ammoelphidiella pustulosa Ammoelphidiella sp. Ammoelphidiella uniforamina Anomalinoides sp. Bulimina sp. Cape Roberts Project Cassidulinoides aequilatera Cassidulinoides braziliensis Cassidulinoides chapmani Cibicides lobatulus Cibicides refulgens Cibicides spp. Core wireline system Cribroelphidium sp. CRP CRP-2 CWS Depth bottom/max top/min Diatom abundance Diatom fragments Echinodermata fragments Elphidium excavatum group Elphidium magellanicum Epistominella exigua Eponides bradyi Fissurina bisulcata Fissurina sp. Fursenkoina schreibersiana Lenticulina sp. Lithologic unit/sequence Marginulina sp. Marginulina tumida Marginulinopsis sp. Melonis affinis Melonis barleeanus Miliolidae Nodosaria spp. Nonionella bradii Nonionella iridea Nonionella magnalingua Number of species off Cape Roberts Ross Sea Antarctica Oolina aqiculata Dataset 2000 ftpangaea https://doi.org/10.1594/PANGAEA.183510 2023-01-20T07:49:47Z Sparse to moderately abundant foraminiferal assemblages from Oligocene and Lower Miocene sediments in the CRP-2/2A drillhole contain C.27 genera and 42 species of calcareous benthic foraminifera. No planktic or agglutinated taxa were observed. On the basis of their faunal characteristics, four Foraminiferal Units are defined in drillhole succession: Foraminiferal Unit I (26.91-193.95 mbsf), mostly sparse assemblages with Elphidium magellanicum and Cribroelphidium sp.; Foraminiferal Unit II (193.95-342.42 mbsf), mostly moderately abundant assemblages with Cassidulinoides aequilatera and Eponides bradyi; Foraminiferal Unit III (342.42-486.19 mbsf), moderately abundant to sparse assemblages characterised by Cassidulinoides chapmani and Stainforthia sp.; and Foraminiferal Unit IV, Improverished (486.19-624.15, total depth, mbsf), with mostly barren residues, but with large Milioliidae recorded in situ at various horizons in the drill core. Foraminiferal Units I-IV lack taxa allowing correlation to standard zonal schemes. Inspection of faunal records from CIROS-1 and DSDP 270 indicates that, although the faunas show an overall similarity, CRP-2/2A Foraminiferal Units I-IV are not identifiable at these sites. The units are therefore most likely to reflect local environmental changes, and probably will prove useful for local correlation, but their lateral extent is undetermined. All four assemblages apparently represent various glacially-influenced shelf environments, and appear to reflect a long term deepening trend from Units IV to II, from perhaps inner to mid or outer-shelf depths, followed by a return to shallower, inner shelf, conditios for Unit I. Dataset Antarc* Antarctica Ross Sea PANGAEA - Data Publisher for Earth & Environmental Science Cape Roberts ENVELOPE(-70.467,-70.467,-68.950,-68.950) Ross Sea ENVELOPE(163.719450,163.719450,-77.005983,-77.005983) |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
topic |
14.2 km at 096° true from Cape Roberts Abundance estimate Ammoelphidiella pustulosa Ammoelphidiella sp. Ammoelphidiella uniforamina Anomalinoides sp. Bulimina sp. Cape Roberts Project Cassidulinoides aequilatera Cassidulinoides braziliensis Cassidulinoides chapmani Cibicides lobatulus Cibicides refulgens Cibicides spp. Core wireline system Cribroelphidium sp. CRP CRP-2 CWS Depth bottom/max top/min Diatom abundance Diatom fragments Echinodermata fragments Elphidium excavatum group Elphidium magellanicum Epistominella exigua Eponides bradyi Fissurina bisulcata Fissurina sp. Fursenkoina schreibersiana Lenticulina sp. Lithologic unit/sequence Marginulina sp. Marginulina tumida Marginulinopsis sp. Melonis affinis Melonis barleeanus Miliolidae Nodosaria spp. Nonionella bradii Nonionella iridea Nonionella magnalingua Number of species off Cape Roberts Ross Sea Antarctica Oolina aqiculata |
spellingShingle |
14.2 km at 096° true from Cape Roberts Abundance estimate Ammoelphidiella pustulosa Ammoelphidiella sp. Ammoelphidiella uniforamina Anomalinoides sp. Bulimina sp. Cape Roberts Project Cassidulinoides aequilatera Cassidulinoides braziliensis Cassidulinoides chapmani Cibicides lobatulus Cibicides refulgens Cibicides spp. Core wireline system Cribroelphidium sp. CRP CRP-2 CWS Depth bottom/max top/min Diatom abundance Diatom fragments Echinodermata fragments Elphidium excavatum group Elphidium magellanicum Epistominella exigua Eponides bradyi Fissurina bisulcata Fissurina sp. Fursenkoina schreibersiana Lenticulina sp. Lithologic unit/sequence Marginulina sp. Marginulina tumida Marginulinopsis sp. Melonis affinis Melonis barleeanus Miliolidae Nodosaria spp. Nonionella bradii Nonionella iridea Nonionella magnalingua Number of species off Cape Roberts Ross Sea Antarctica Oolina aqiculata Strong, C Percy Webb, Peter-Noel Occurence of foraminifera and other microfossils in sediment core CRP-2/2A (Table 1) |
topic_facet |
14.2 km at 096° true from Cape Roberts Abundance estimate Ammoelphidiella pustulosa Ammoelphidiella sp. Ammoelphidiella uniforamina Anomalinoides sp. Bulimina sp. Cape Roberts Project Cassidulinoides aequilatera Cassidulinoides braziliensis Cassidulinoides chapmani Cibicides lobatulus Cibicides refulgens Cibicides spp. Core wireline system Cribroelphidium sp. CRP CRP-2 CWS Depth bottom/max top/min Diatom abundance Diatom fragments Echinodermata fragments Elphidium excavatum group Elphidium magellanicum Epistominella exigua Eponides bradyi Fissurina bisulcata Fissurina sp. Fursenkoina schreibersiana Lenticulina sp. Lithologic unit/sequence Marginulina sp. Marginulina tumida Marginulinopsis sp. Melonis affinis Melonis barleeanus Miliolidae Nodosaria spp. Nonionella bradii Nonionella iridea Nonionella magnalingua Number of species off Cape Roberts Ross Sea Antarctica Oolina aqiculata |
description |
Sparse to moderately abundant foraminiferal assemblages from Oligocene and Lower Miocene sediments in the CRP-2/2A drillhole contain C.27 genera and 42 species of calcareous benthic foraminifera. No planktic or agglutinated taxa were observed. On the basis of their faunal characteristics, four Foraminiferal Units are defined in drillhole succession: Foraminiferal Unit I (26.91-193.95 mbsf), mostly sparse assemblages with Elphidium magellanicum and Cribroelphidium sp.; Foraminiferal Unit II (193.95-342.42 mbsf), mostly moderately abundant assemblages with Cassidulinoides aequilatera and Eponides bradyi; Foraminiferal Unit III (342.42-486.19 mbsf), moderately abundant to sparse assemblages characterised by Cassidulinoides chapmani and Stainforthia sp.; and Foraminiferal Unit IV, Improverished (486.19-624.15, total depth, mbsf), with mostly barren residues, but with large Milioliidae recorded in situ at various horizons in the drill core. Foraminiferal Units I-IV lack taxa allowing correlation to standard zonal schemes. Inspection of faunal records from CIROS-1 and DSDP 270 indicates that, although the faunas show an overall similarity, CRP-2/2A Foraminiferal Units I-IV are not identifiable at these sites. The units are therefore most likely to reflect local environmental changes, and probably will prove useful for local correlation, but their lateral extent is undetermined. All four assemblages apparently represent various glacially-influenced shelf environments, and appear to reflect a long term deepening trend from Units IV to II, from perhaps inner to mid or outer-shelf depths, followed by a return to shallower, inner shelf, conditios for Unit I. |
format |
Dataset |
author |
Strong, C Percy Webb, Peter-Noel |
author_facet |
Strong, C Percy Webb, Peter-Noel |
author_sort |
Strong, C Percy |
title |
Occurence of foraminifera and other microfossils in sediment core CRP-2/2A (Table 1) |
title_short |
Occurence of foraminifera and other microfossils in sediment core CRP-2/2A (Table 1) |
title_full |
Occurence of foraminifera and other microfossils in sediment core CRP-2/2A (Table 1) |
title_fullStr |
Occurence of foraminifera and other microfossils in sediment core CRP-2/2A (Table 1) |
title_full_unstemmed |
Occurence of foraminifera and other microfossils in sediment core CRP-2/2A (Table 1) |
title_sort |
occurence of foraminifera and other microfossils in sediment core crp-2/2a (table 1) |
publisher |
PANGAEA |
publishDate |
2000 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.183510 https://doi.org/10.1594/PANGAEA.183510 |
op_coverage |
LATITUDE: -77.005983 * LONGITUDE: 163.719450 * DATE/TIME START: 1998-10-01T00:00:00 * DATE/TIME END: 1998-10-01T00:00:00 * MINIMUM ELEVATION: -177.9 m * MAXIMUM ELEVATION: -177.9 m |
long_lat |
ENVELOPE(-70.467,-70.467,-68.950,-68.950) ENVELOPE(163.719450,163.719450,-77.005983,-77.005983) |
geographic |
Cape Roberts Ross Sea |
geographic_facet |
Cape Roberts Ross Sea |
genre |
Antarc* Antarctica Ross Sea |
genre_facet |
Antarc* Antarctica Ross Sea |
op_source |
Supplement to: Strong, C Percy; Webb, Peter-Noel (2000): Oligocene and Miocene foraminifera from CRP-2/2A, Victoria Land Basin, Antarctica. Terra Antartica, 7(4), 461-472, hdl:10013/epic.28260.d001 |
op_relation |
https://doi.pangaea.de/10.1594/PANGAEA.183510 https://doi.org/10.1594/PANGAEA.183510 |
op_rights |
CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1594/PANGAEA.183510 |
_version_ |
1766227755014291456 |