Palynology of the Marambio Group (Upper Cretaceous) of northern Humps Island
Palynological analyses of the Marambio Group sediments of Humps Island (Santa Marta and López de Bertodano formations) indicates that there is minor displacement across a prominent NW–SE trending normal fault which passes beneath the southern bluff. No major compositional differences were perceived...
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Cambridge University Press
1992
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Online Access: | http://nora.nerc.ac.uk/id/eprint/518431/ https://doi.org/10.1017/S0954102092000476 |
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ftnerc:oai:nora.nerc.ac.uk:518431 2023-05-15T13:49:34+02:00 Palynology of the Marambio Group (Upper Cretaceous) of northern Humps Island Dolding, Philip J.D. 1992-09 http://nora.nerc.ac.uk/id/eprint/518431/ https://doi.org/10.1017/S0954102092000476 unknown Cambridge University Press Dolding, Philip J.D. 1992 Palynology of the Marambio Group (Upper Cretaceous) of northern Humps Island. Antarctic Science, 4 (03). 311-326. https://doi.org/10.1017/S0954102092000476 <https://doi.org/10.1017/S0954102092000476> Botany Publication - Article PeerReviewed 1992 ftnerc https://doi.org/10.1017/S0954102092000476 2023-02-04T19:45:38Z Palynological analyses of the Marambio Group sediments of Humps Island (Santa Marta and López de Bertodano formations) indicates that there is minor displacement across a prominent NW–SE trending normal fault which passes beneath the southern bluff. No major compositional differences were perceived between the palynomorph assemblages either side of the fault. A late Campanian age is suggested for both sequences, based on comparison with Australasian dinoflagellate cyst zonations. A new species of the dinoflagellate cyst Bourkidinium has been recorded from strata on either side of the fault. A significant number of recycled Permian and Early Cretaceous palynomorphs were recorded. Most are miospores and exhibit significant variation in preservational states, implying derivation from several sources. More thermally mature Permian gymnosperm pollen is most likely derived from the nearby Trinity Peninsula Group, exposed on the Antarctic Peninsula. The source of the relatively well preserved Permian pollen is problematic. Article in Journal/Newspaper Antarc* Antarctic Antarctic Peninsula Antarctic Science Natural Environment Research Council: NERC Open Research Archive Antarctic The Antarctic Antarctic Peninsula Marambio ENVELOPE(-56.750,-56.750,-64.283,-64.283) Trinity Peninsula ENVELOPE(-58.000,-58.000,-63.500,-63.500) Humps ENVELOPE(-57.450,-57.450,-63.983,-63.983) Humps Island ENVELOPE(-57.409,-57.409,-63.988,-63.988) Antarctic Science 4 3 311 326 |
institution |
Open Polar |
collection |
Natural Environment Research Council: NERC Open Research Archive |
op_collection_id |
ftnerc |
language |
unknown |
topic |
Botany |
spellingShingle |
Botany Dolding, Philip J.D. Palynology of the Marambio Group (Upper Cretaceous) of northern Humps Island |
topic_facet |
Botany |
description |
Palynological analyses of the Marambio Group sediments of Humps Island (Santa Marta and López de Bertodano formations) indicates that there is minor displacement across a prominent NW–SE trending normal fault which passes beneath the southern bluff. No major compositional differences were perceived between the palynomorph assemblages either side of the fault. A late Campanian age is suggested for both sequences, based on comparison with Australasian dinoflagellate cyst zonations. A new species of the dinoflagellate cyst Bourkidinium has been recorded from strata on either side of the fault. A significant number of recycled Permian and Early Cretaceous palynomorphs were recorded. Most are miospores and exhibit significant variation in preservational states, implying derivation from several sources. More thermally mature Permian gymnosperm pollen is most likely derived from the nearby Trinity Peninsula Group, exposed on the Antarctic Peninsula. The source of the relatively well preserved Permian pollen is problematic. |
format |
Article in Journal/Newspaper |
author |
Dolding, Philip J.D. |
author_facet |
Dolding, Philip J.D. |
author_sort |
Dolding, Philip J.D. |
title |
Palynology of the Marambio Group (Upper Cretaceous) of northern Humps Island |
title_short |
Palynology of the Marambio Group (Upper Cretaceous) of northern Humps Island |
title_full |
Palynology of the Marambio Group (Upper Cretaceous) of northern Humps Island |
title_fullStr |
Palynology of the Marambio Group (Upper Cretaceous) of northern Humps Island |
title_full_unstemmed |
Palynology of the Marambio Group (Upper Cretaceous) of northern Humps Island |
title_sort |
palynology of the marambio group (upper cretaceous) of northern humps island |
publisher |
Cambridge University Press |
publishDate |
1992 |
url |
http://nora.nerc.ac.uk/id/eprint/518431/ https://doi.org/10.1017/S0954102092000476 |
long_lat |
ENVELOPE(-56.750,-56.750,-64.283,-64.283) ENVELOPE(-58.000,-58.000,-63.500,-63.500) ENVELOPE(-57.450,-57.450,-63.983,-63.983) ENVELOPE(-57.409,-57.409,-63.988,-63.988) |
geographic |
Antarctic The Antarctic Antarctic Peninsula Marambio Trinity Peninsula Humps Humps Island |
geographic_facet |
Antarctic The Antarctic Antarctic Peninsula Marambio Trinity Peninsula Humps Humps Island |
genre |
Antarc* Antarctic Antarctic Peninsula Antarctic Science |
genre_facet |
Antarc* Antarctic Antarctic Peninsula Antarctic Science |
op_relation |
Dolding, Philip J.D. 1992 Palynology of the Marambio Group (Upper Cretaceous) of northern Humps Island. Antarctic Science, 4 (03). 311-326. https://doi.org/10.1017/S0954102092000476 <https://doi.org/10.1017/S0954102092000476> |
op_doi |
https://doi.org/10.1017/S0954102092000476 |
container_title |
Antarctic Science |
container_volume |
4 |
container_issue |
3 |
container_start_page |
311 |
op_container_end_page |
326 |
_version_ |
1766251718057656320 |