Correlation of Eocene-Oligocene marine and continental records: orbital cyclicity, magnetostratigraphy and sequence stratigraphy of the Solent Group, Isle of Wight, UK
The magnetostratigraphy, clay mineralogy, cyclostratigraphy and sequence stratigraphy of the estuarine and continental Solent Group (Isle of Wight, Hampshire Basin, UK), which is of Late Eocene–Early Oligocene age, were investigated. A new magnetostratigraphy for the Solent Group is correlated to th...
Published in: | Journal of the Geological Society |
---|---|
Main Authors: | , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
2006
|
Subjects: | |
Online Access: | https://doi.org/10.1144/0016-764903-175 https://researchportal.port.ac.uk/portal/en/publications/correlation-of-eoceneoligocene-marine-and-continental-records-orbital-cyclicity-magnetostratigraphy-and-sequence-stratigraphy-of-the-solent-group-isle-of-wight-uk(75f6d149-e692-42de-9a76-3a40ad8bbe87).html |
id |
ftunivportsmpubl:oai:researchportal.port.ac.uk:publications/75f6d149-e692-42de-9a76-3a40ad8bbe87 |
---|---|
record_format |
openpolar |
spelling |
ftunivportsmpubl:oai:researchportal.port.ac.uk:publications/75f6d149-e692-42de-9a76-3a40ad8bbe87 2023-05-15T13:41:17+02:00 Correlation of Eocene-Oligocene marine and continental records: orbital cyclicity, magnetostratigraphy and sequence stratigraphy of the Solent Group, Isle of Wight, UK Gale, Andy Huggett, J. Palike, H. Laurie, E. Hailwood, E. Hardenbol, J. 2006-03 https://doi.org/10.1144/0016-764903-175 https://researchportal.port.ac.uk/portal/en/publications/correlation-of-eoceneoligocene-marine-and-continental-records-orbital-cyclicity-magnetostratigraphy-and-sequence-stratigraphy-of-the-solent-group-isle-of-wight-uk(75f6d149-e692-42de-9a76-3a40ad8bbe87).html eng eng info:eu-repo/semantics/restrictedAccess Gale , A , Huggett , J , Palike , H , Laurie , E , Hailwood , E & Hardenbol , J 2006 , ' Correlation of Eocene-Oligocene marine and continental records: orbital cyclicity, magnetostratigraphy and sequence stratigraphy of the Solent Group, Isle of Wight, UK ' Journal of the Geological Society , vol 163 , no. 2 , pp. 401-415 . DOI:10.1144/0016-764903-175 /dk/atira/pure/core/subjects/earthsci Earth Sciences article 2006 ftunivportsmpubl https://doi.org/10.1144/0016-764903-175 2017-09-28T19:32:12Z The magnetostratigraphy, clay mineralogy, cyclostratigraphy and sequence stratigraphy of the estuarine and continental Solent Group (Isle of Wight, Hampshire Basin, UK), which is of Late Eocene–Early Oligocene age, were investigated. A new magnetostratigraphy for the Solent Group is correlated to the chronostratigraphic standard using limited biostratigraphical data, and it is concluded that the base of the Oligocene falls close to the base of the Bembridge Limestone Formation. A long time-series of clay mineral XRD data was generated, which shows striking variation in illitic clay abundance. Illite is interpreted to have formed in gley palaeosols through repeated wetting and drying in response to high seasonality. High illitic clay values are tuned to c. 400 ka eccentricity maxima to develop an age model. In addition to a very strong c. 400 ka signal in the data, spectral analysis of the clay data also confirms the influence of short eccentricity (c. 100 ka) and obliquity (c. 40 ka) cycles. The succession displays seven conspicuous 10–20 m thick sequences, which represent transitions from transgressive estuarine environments through highstand floodplains to freshwater lakes. The sequences correspond exactly to the long eccentricity (c. 400 ka) cycles. A sea-level curve is derived using the amount of incision as a minimum measure of eustatic fall, but there is no evidence of a major eustatic drop of 30–90 m corresponding to the early Oligocene glaciation of Antarctica. It is likely that incision was suppressed by rapid rates of subsidence. Article in Journal/Newspaper Antarc* Antarctica University of Portsmouth: Portsmouth Research Portal Journal of the Geological Society 163 2 401 415 |
institution |
Open Polar |
collection |
University of Portsmouth: Portsmouth Research Portal |
op_collection_id |
ftunivportsmpubl |
language |
English |
topic |
/dk/atira/pure/core/subjects/earthsci Earth Sciences |
spellingShingle |
/dk/atira/pure/core/subjects/earthsci Earth Sciences Gale, Andy Huggett, J. Palike, H. Laurie, E. Hailwood, E. Hardenbol, J. Correlation of Eocene-Oligocene marine and continental records: orbital cyclicity, magnetostratigraphy and sequence stratigraphy of the Solent Group, Isle of Wight, UK |
topic_facet |
/dk/atira/pure/core/subjects/earthsci Earth Sciences |
description |
The magnetostratigraphy, clay mineralogy, cyclostratigraphy and sequence stratigraphy of the estuarine and continental Solent Group (Isle of Wight, Hampshire Basin, UK), which is of Late Eocene–Early Oligocene age, were investigated. A new magnetostratigraphy for the Solent Group is correlated to the chronostratigraphic standard using limited biostratigraphical data, and it is concluded that the base of the Oligocene falls close to the base of the Bembridge Limestone Formation. A long time-series of clay mineral XRD data was generated, which shows striking variation in illitic clay abundance. Illite is interpreted to have formed in gley palaeosols through repeated wetting and drying in response to high seasonality. High illitic clay values are tuned to c. 400 ka eccentricity maxima to develop an age model. In addition to a very strong c. 400 ka signal in the data, spectral analysis of the clay data also confirms the influence of short eccentricity (c. 100 ka) and obliquity (c. 40 ka) cycles. The succession displays seven conspicuous 10–20 m thick sequences, which represent transitions from transgressive estuarine environments through highstand floodplains to freshwater lakes. The sequences correspond exactly to the long eccentricity (c. 400 ka) cycles. A sea-level curve is derived using the amount of incision as a minimum measure of eustatic fall, but there is no evidence of a major eustatic drop of 30–90 m corresponding to the early Oligocene glaciation of Antarctica. It is likely that incision was suppressed by rapid rates of subsidence. |
format |
Article in Journal/Newspaper |
author |
Gale, Andy Huggett, J. Palike, H. Laurie, E. Hailwood, E. Hardenbol, J. |
author_facet |
Gale, Andy Huggett, J. Palike, H. Laurie, E. Hailwood, E. Hardenbol, J. |
author_sort |
Gale, Andy |
title |
Correlation of Eocene-Oligocene marine and continental records: orbital cyclicity, magnetostratigraphy and sequence stratigraphy of the Solent Group, Isle of Wight, UK |
title_short |
Correlation of Eocene-Oligocene marine and continental records: orbital cyclicity, magnetostratigraphy and sequence stratigraphy of the Solent Group, Isle of Wight, UK |
title_full |
Correlation of Eocene-Oligocene marine and continental records: orbital cyclicity, magnetostratigraphy and sequence stratigraphy of the Solent Group, Isle of Wight, UK |
title_fullStr |
Correlation of Eocene-Oligocene marine and continental records: orbital cyclicity, magnetostratigraphy and sequence stratigraphy of the Solent Group, Isle of Wight, UK |
title_full_unstemmed |
Correlation of Eocene-Oligocene marine and continental records: orbital cyclicity, magnetostratigraphy and sequence stratigraphy of the Solent Group, Isle of Wight, UK |
title_sort |
correlation of eocene-oligocene marine and continental records: orbital cyclicity, magnetostratigraphy and sequence stratigraphy of the solent group, isle of wight, uk |
publishDate |
2006 |
url |
https://doi.org/10.1144/0016-764903-175 https://researchportal.port.ac.uk/portal/en/publications/correlation-of-eoceneoligocene-marine-and-continental-records-orbital-cyclicity-magnetostratigraphy-and-sequence-stratigraphy-of-the-solent-group-isle-of-wight-uk(75f6d149-e692-42de-9a76-3a40ad8bbe87).html |
genre |
Antarc* Antarctica |
genre_facet |
Antarc* Antarctica |
op_source |
Gale , A , Huggett , J , Palike , H , Laurie , E , Hailwood , E & Hardenbol , J 2006 , ' Correlation of Eocene-Oligocene marine and continental records: orbital cyclicity, magnetostratigraphy and sequence stratigraphy of the Solent Group, Isle of Wight, UK ' Journal of the Geological Society , vol 163 , no. 2 , pp. 401-415 . DOI:10.1144/0016-764903-175 |
op_rights |
info:eu-repo/semantics/restrictedAccess |
op_doi |
https://doi.org/10.1144/0016-764903-175 |
container_title |
Journal of the Geological Society |
container_volume |
163 |
container_issue |
2 |
container_start_page |
401 |
op_container_end_page |
415 |
_version_ |
1766148591691235328 |