Radiocarbon and Thermoluminescence Studies of the Karst Pipe Systems in Southwest England and South Wales
Paleokarst forms in raised beach deposits of Southwest England and South Wales and generally known as “pipes” were dated by 14 C and thermoluminescence (TL) methods. Current geological opinion is that these pipes are features that developed under the cover of periglacial-solifluctional deposits due...
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Cambridge University Press (CUP)
1995
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crcambridgeupr:10.1017/s003382220003054x 2024-03-03T08:45:27+00:00 Radiocarbon and Thermoluminescence Studies of the Karst Pipe Systems in Southwest England and South Wales Pazdur, Mieczysław F. Bluszcz, Andrzej Pazdur, Anna Morawiecka, Iwona 1995 http://dx.doi.org/10.1017/s003382220003054x https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S003382220003054X en eng Cambridge University Press (CUP) https://www.cambridge.org/core/terms Radiocarbon volume 37, issue 2, page 111-117 ISSN 0033-8222 1945-5755 General Earth and Planetary Sciences Archeology journal-article 1995 crcambridgeupr https://doi.org/10.1017/s003382220003054x 2024-02-08T08:33:26Z Paleokarst forms in raised beach deposits of Southwest England and South Wales and generally known as “pipes” were dated by 14 C and thermoluminescence (TL) methods. Current geological opinion is that these pipes are features that developed under the cover of periglacial-solifluctional deposits due to periglacial conditions prevalent in the Late Devensian. In the present study, TL was used to determine the age of quartz grains forming the raised beaches. 14 C ages were obtained from carbonate cements within sandrock and on the pipe walls. TL ages measured for quartz grains separated from sandrock samples are older than 80 ka bp, whereas the corresponding TL dates obtained from the sandy material of pipe infills center around 40 ka bp. All carbonates yielded finite apparent 14 C dates that range from ca . 45 ka bp to 27 ka bp for sandrock. The apparent 14 C dates obtained on carbonate cements from the pipe walls fall into two groups, one ranging from 30 ka bp to 22 ka bp and the other from 15 ka bp to 7 ka bp. On the basis of geochemical considerations, we conclude that the sandrock cements formed between 35 and 25 ka bp and pipe walls cemented between 30 and 2 ka bp with a break during the climate deterioration caused by last ice sheet advance. Article in Journal/Newspaper Ice Sheet Cambridge University Press Raised Beach ENVELOPE(163.783,163.783,-74.983,-74.983) Radiocarbon 37 2 111 117 |
institution |
Open Polar |
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Cambridge University Press |
op_collection_id |
crcambridgeupr |
language |
English |
topic |
General Earth and Planetary Sciences Archeology |
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General Earth and Planetary Sciences Archeology Pazdur, Mieczysław F. Bluszcz, Andrzej Pazdur, Anna Morawiecka, Iwona Radiocarbon and Thermoluminescence Studies of the Karst Pipe Systems in Southwest England and South Wales |
topic_facet |
General Earth and Planetary Sciences Archeology |
description |
Paleokarst forms in raised beach deposits of Southwest England and South Wales and generally known as “pipes” were dated by 14 C and thermoluminescence (TL) methods. Current geological opinion is that these pipes are features that developed under the cover of periglacial-solifluctional deposits due to periglacial conditions prevalent in the Late Devensian. In the present study, TL was used to determine the age of quartz grains forming the raised beaches. 14 C ages were obtained from carbonate cements within sandrock and on the pipe walls. TL ages measured for quartz grains separated from sandrock samples are older than 80 ka bp, whereas the corresponding TL dates obtained from the sandy material of pipe infills center around 40 ka bp. All carbonates yielded finite apparent 14 C dates that range from ca . 45 ka bp to 27 ka bp for sandrock. The apparent 14 C dates obtained on carbonate cements from the pipe walls fall into two groups, one ranging from 30 ka bp to 22 ka bp and the other from 15 ka bp to 7 ka bp. On the basis of geochemical considerations, we conclude that the sandrock cements formed between 35 and 25 ka bp and pipe walls cemented between 30 and 2 ka bp with a break during the climate deterioration caused by last ice sheet advance. |
format |
Article in Journal/Newspaper |
author |
Pazdur, Mieczysław F. Bluszcz, Andrzej Pazdur, Anna Morawiecka, Iwona |
author_facet |
Pazdur, Mieczysław F. Bluszcz, Andrzej Pazdur, Anna Morawiecka, Iwona |
author_sort |
Pazdur, Mieczysław F. |
title |
Radiocarbon and Thermoluminescence Studies of the Karst Pipe Systems in Southwest England and South Wales |
title_short |
Radiocarbon and Thermoluminescence Studies of the Karst Pipe Systems in Southwest England and South Wales |
title_full |
Radiocarbon and Thermoluminescence Studies of the Karst Pipe Systems in Southwest England and South Wales |
title_fullStr |
Radiocarbon and Thermoluminescence Studies of the Karst Pipe Systems in Southwest England and South Wales |
title_full_unstemmed |
Radiocarbon and Thermoluminescence Studies of the Karst Pipe Systems in Southwest England and South Wales |
title_sort |
radiocarbon and thermoluminescence studies of the karst pipe systems in southwest england and south wales |
publisher |
Cambridge University Press (CUP) |
publishDate |
1995 |
url |
http://dx.doi.org/10.1017/s003382220003054x https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S003382220003054X |
long_lat |
ENVELOPE(163.783,163.783,-74.983,-74.983) |
geographic |
Raised Beach |
geographic_facet |
Raised Beach |
genre |
Ice Sheet |
genre_facet |
Ice Sheet |
op_source |
Radiocarbon volume 37, issue 2, page 111-117 ISSN 0033-8222 1945-5755 |
op_rights |
https://www.cambridge.org/core/terms |
op_doi |
https://doi.org/10.1017/s003382220003054x |
container_title |
Radiocarbon |
container_volume |
37 |
container_issue |
2 |
container_start_page |
111 |
op_container_end_page |
117 |
_version_ |
1792501015971364864 |