(Table 1) Stratigraphical distribution of Cenozoic terrestrial palynomorphs from sediment core CRP-3
Sparse low diversity early Oligocene spore-pollen assemblages above c. 410 mbsf (meters blow sea floor) in CRP-3 are dominated by Nothofagus pollen, and are very similar in composition to those from the lower part of CRP-2A. Anther-derived pollen aggregates, and a Nothofagus leaf at 44.12 mbsf show...
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Online Access: | https://doi.pangaea.de/10.1594/PANGAEA.183928 https://doi.org/10.1594/PANGAEA.183928 |
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ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.183928 2023-05-15T13:45:35+02:00 (Table 1) Stratigraphical distribution of Cenozoic terrestrial palynomorphs from sediment core CRP-3 Raine, J Ian Askin, R A LATITUDE: -77.006000 * LONGITUDE: 163.719000 * DATE/TIME START: 1999-10-09T00:00:00 * DATE/TIME END: 1999-11-19T00:00:00 * MINIMUM DEPTH, sediment/rock: 7.730 m * MAXIMUM DEPTH, sediment/rock: 798.035 m 2001-04-22 text/tab-separated-values, 3868 data points https://doi.pangaea.de/10.1594/PANGAEA.183928 https://doi.org/10.1594/PANGAEA.183928 en eng PANGAEA https://doi.pangaea.de/10.1594/PANGAEA.183928 https://doi.org/10.1594/PANGAEA.183928 CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess CC-BY Supplement to: Raine, J Ian; Askin, R A (2001): Terrestrial palynology of Cape Roberts Project drillhole CRP-3, Victoria Land Basin, Antarctica. Terra Antartica, 8(4), 389-400, hdl:10013/epic.28233.d001 Aggregates Asteraceae Campanulaceae Cape Roberts Project Caryophyllaceae Chenopodipollis sp. Cophosfora spp. Core wireline system Counting palynology CRP CRP-3 CWS Cyathidites minor Cyperaceaepollis sp. Depth bottom/max sediment/rock top/min Dilwynites granulatus Fungal mycelia Fungal spore indeterminata Laevigatosporites spp. Lycopodiumsporites sp. Microcachrydites antarcticus Myricipites harrisii Myrtaceidites sp. Nothofagidites asperus Nothofagidites cf. flemingii Nothofagidites flemingii Nothofagidites lachlaniae Nothofagidites spp. Peninsulapollis cf. gillii Podcarpidites cf. exiguus Podcarpidites sp. Podcarpidites spp. Pollen angiosperm indeterminata Proteacidites sp. Ranunculaceae Ross Sea Rugulatisporites sp. Sampling/drilling from ice Specimen count Spores indeterminata Stylidiaceae Trichotomosulcites sp. Trichotomosulcites subgranulatus Dataset 2001 ftpangaea https://doi.org/10.1594/PANGAEA.183928 2023-01-20T07:49:52Z Sparse low diversity early Oligocene spore-pollen assemblages above c. 410 mbsf (meters blow sea floor) in CRP-3 are dominated by Nothofagus pollen, and are very similar in composition to those from the lower part of CRP-2A. Anther-derived pollen aggregates, and a Nothofagus leaf at 44.12 mbsf show that the palynomorphs were derived from vegetation growing at the time of deposition. This woody vegetation included several species of Nothofagus and podocarpaceous conifers, a few other angiosperm families, and few cryptogams except for bryophytes, In favourable sites the vegetation may have comprised a low scrub or closed forest intermediate stature and floristic richness between that of the Eocene and the limited vegetation of the late Oligocene to earl Miocene. It may have similar to Nothofagus woodland of the present-day Magellanic region, with summer mean daily temperatures at sea level of c. 10-12° C. More stunted vegetation would have existed in exposed and upland sites. Wetland vegetation appears to have been minor, although Coptospora may in part represent a mire community. Below c. 410 mbsf samples are mostly barren, probably due to non-deposition of fine particles and dilution by high sediment deposition. A meagre but relatively high diversity assemblage at 781.36 mbsf contains Casuarina-type pollen, unknown in the higher CRP sequence in Eocene strata of CIROS-1 and glacial erratics of the McMurdo Sound region. This limited data is consistent with Eocene dating of basal CRP-3 Cenozoic sediments from magnetostratigraphy. Dataset Antarc* antarcticus McMurdo Sound Ross Sea PANGAEA - Data Publisher for Earth & Environmental Science Cape Roberts ENVELOPE(-70.467,-70.467,-68.950,-68.950) McMurdo Sound Ross Sea ENVELOPE(163.719000,163.719000,-77.006000,-77.006000) |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
topic |
Aggregates Asteraceae Campanulaceae Cape Roberts Project Caryophyllaceae Chenopodipollis sp. Cophosfora spp. Core wireline system Counting palynology CRP CRP-3 CWS Cyathidites minor Cyperaceaepollis sp. Depth bottom/max sediment/rock top/min Dilwynites granulatus Fungal mycelia Fungal spore indeterminata Laevigatosporites spp. Lycopodiumsporites sp. Microcachrydites antarcticus Myricipites harrisii Myrtaceidites sp. Nothofagidites asperus Nothofagidites cf. flemingii Nothofagidites flemingii Nothofagidites lachlaniae Nothofagidites spp. Peninsulapollis cf. gillii Podcarpidites cf. exiguus Podcarpidites sp. Podcarpidites spp. Pollen angiosperm indeterminata Proteacidites sp. Ranunculaceae Ross Sea Rugulatisporites sp. Sampling/drilling from ice Specimen count Spores indeterminata Stylidiaceae Trichotomosulcites sp. Trichotomosulcites subgranulatus |
spellingShingle |
Aggregates Asteraceae Campanulaceae Cape Roberts Project Caryophyllaceae Chenopodipollis sp. Cophosfora spp. Core wireline system Counting palynology CRP CRP-3 CWS Cyathidites minor Cyperaceaepollis sp. Depth bottom/max sediment/rock top/min Dilwynites granulatus Fungal mycelia Fungal spore indeterminata Laevigatosporites spp. Lycopodiumsporites sp. Microcachrydites antarcticus Myricipites harrisii Myrtaceidites sp. Nothofagidites asperus Nothofagidites cf. flemingii Nothofagidites flemingii Nothofagidites lachlaniae Nothofagidites spp. Peninsulapollis cf. gillii Podcarpidites cf. exiguus Podcarpidites sp. Podcarpidites spp. Pollen angiosperm indeterminata Proteacidites sp. Ranunculaceae Ross Sea Rugulatisporites sp. Sampling/drilling from ice Specimen count Spores indeterminata Stylidiaceae Trichotomosulcites sp. Trichotomosulcites subgranulatus Raine, J Ian Askin, R A (Table 1) Stratigraphical distribution of Cenozoic terrestrial palynomorphs from sediment core CRP-3 |
topic_facet |
Aggregates Asteraceae Campanulaceae Cape Roberts Project Caryophyllaceae Chenopodipollis sp. Cophosfora spp. Core wireline system Counting palynology CRP CRP-3 CWS Cyathidites minor Cyperaceaepollis sp. Depth bottom/max sediment/rock top/min Dilwynites granulatus Fungal mycelia Fungal spore indeterminata Laevigatosporites spp. Lycopodiumsporites sp. Microcachrydites antarcticus Myricipites harrisii Myrtaceidites sp. Nothofagidites asperus Nothofagidites cf. flemingii Nothofagidites flemingii Nothofagidites lachlaniae Nothofagidites spp. Peninsulapollis cf. gillii Podcarpidites cf. exiguus Podcarpidites sp. Podcarpidites spp. Pollen angiosperm indeterminata Proteacidites sp. Ranunculaceae Ross Sea Rugulatisporites sp. Sampling/drilling from ice Specimen count Spores indeterminata Stylidiaceae Trichotomosulcites sp. Trichotomosulcites subgranulatus |
description |
Sparse low diversity early Oligocene spore-pollen assemblages above c. 410 mbsf (meters blow sea floor) in CRP-3 are dominated by Nothofagus pollen, and are very similar in composition to those from the lower part of CRP-2A. Anther-derived pollen aggregates, and a Nothofagus leaf at 44.12 mbsf show that the palynomorphs were derived from vegetation growing at the time of deposition. This woody vegetation included several species of Nothofagus and podocarpaceous conifers, a few other angiosperm families, and few cryptogams except for bryophytes, In favourable sites the vegetation may have comprised a low scrub or closed forest intermediate stature and floristic richness between that of the Eocene and the limited vegetation of the late Oligocene to earl Miocene. It may have similar to Nothofagus woodland of the present-day Magellanic region, with summer mean daily temperatures at sea level of c. 10-12° C. More stunted vegetation would have existed in exposed and upland sites. Wetland vegetation appears to have been minor, although Coptospora may in part represent a mire community. Below c. 410 mbsf samples are mostly barren, probably due to non-deposition of fine particles and dilution by high sediment deposition. A meagre but relatively high diversity assemblage at 781.36 mbsf contains Casuarina-type pollen, unknown in the higher CRP sequence in Eocene strata of CIROS-1 and glacial erratics of the McMurdo Sound region. This limited data is consistent with Eocene dating of basal CRP-3 Cenozoic sediments from magnetostratigraphy. |
format |
Dataset |
author |
Raine, J Ian Askin, R A |
author_facet |
Raine, J Ian Askin, R A |
author_sort |
Raine, J Ian |
title |
(Table 1) Stratigraphical distribution of Cenozoic terrestrial palynomorphs from sediment core CRP-3 |
title_short |
(Table 1) Stratigraphical distribution of Cenozoic terrestrial palynomorphs from sediment core CRP-3 |
title_full |
(Table 1) Stratigraphical distribution of Cenozoic terrestrial palynomorphs from sediment core CRP-3 |
title_fullStr |
(Table 1) Stratigraphical distribution of Cenozoic terrestrial palynomorphs from sediment core CRP-3 |
title_full_unstemmed |
(Table 1) Stratigraphical distribution of Cenozoic terrestrial palynomorphs from sediment core CRP-3 |
title_sort |
(table 1) stratigraphical distribution of cenozoic terrestrial palynomorphs from sediment core crp-3 |
publisher |
PANGAEA |
publishDate |
2001 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.183928 https://doi.org/10.1594/PANGAEA.183928 |
op_coverage |
LATITUDE: -77.006000 * LONGITUDE: 163.719000 * DATE/TIME START: 1999-10-09T00:00:00 * DATE/TIME END: 1999-11-19T00:00:00 * MINIMUM DEPTH, sediment/rock: 7.730 m * MAXIMUM DEPTH, sediment/rock: 798.035 m |
long_lat |
ENVELOPE(-70.467,-70.467,-68.950,-68.950) ENVELOPE(163.719000,163.719000,-77.006000,-77.006000) |
geographic |
Cape Roberts McMurdo Sound Ross Sea |
geographic_facet |
Cape Roberts McMurdo Sound Ross Sea |
genre |
Antarc* antarcticus McMurdo Sound Ross Sea |
genre_facet |
Antarc* antarcticus McMurdo Sound Ross Sea |
op_source |
Supplement to: Raine, J Ian; Askin, R A (2001): Terrestrial palynology of Cape Roberts Project drillhole CRP-3, Victoria Land Basin, Antarctica. Terra Antartica, 8(4), 389-400, hdl:10013/epic.28233.d001 |
op_relation |
https://doi.pangaea.de/10.1594/PANGAEA.183928 https://doi.org/10.1594/PANGAEA.183928 |
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.183928 |
_version_ |
1766227761319378944 |