Stratigraphy of Cretaceous to Lower Pliocene sediments in the northern part of Cyprus based on comparative 87Sr/86Sr isotopic, nannofossil and planktonic foraminiferal dating
New age data from Sr isotope analysis and both planktonic foraminifera and nannofossils are presented and discussed here for the Upper Eocene–Upper Miocene sedimentary rocks of the Deg ̆irmenlik (Kythrea) Group. New dating is also given of some Cretaceous and Pliocene sediments. In a revised stratig...
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Online Access: | http://hdl.handle.net/11564/425483 https://doi.org/10.1017/S0016756812000465 |
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ftunivchietiiris:oai:ricerca.unich.it:11564/425483 2024-04-21T08:10:33+00:00 Stratigraphy of Cretaceous to Lower Pliocene sediments in the northern part of Cyprus based on comparative 87Sr/86Sr isotopic, nannofossil and planktonic foraminiferal dating MCCAY G. A. ROBERTSON A. H. F. KROON D. ELLAM R. M. NECDET M. RAFFI, Isabella Mccay, G. A. Robertson, A. H. F. Kroon, D. Raffi, Isabella Ellam, R. M. Necdet, M. 2013 STAMPA http://hdl.handle.net/11564/425483 https://doi.org/10.1017/S0016756812000465 eng eng info:eu-repo/semantics/altIdentifier/wos/WOS:000314295500007 volume:150 issue:2 firstpage:333 lastpage:359 numberofpages:27 journal:GEOLOGICAL MAGAZINE http://hdl.handle.net/11564/425483 doi:10.1017/S0016756812000465 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-84873349469 info:eu-repo/semantics/article 2013 ftunivchietiiris https://doi.org/10.1017/S0016756812000465 2024-03-25T01:33:39Z New age data from Sr isotope analysis and both planktonic foraminifera and nannofossils are presented and discussed here for the Upper Eocene–Upper Miocene sedimentary rocks of the Deg ̆irmenlik (Kythrea) Group. New dating is also given of some Cretaceous and Pliocene sediments. In a revised stratigraphy the Deg ̆irmenlik (Kythrea) Group is divided into ten formations. Different Upper Miocene formations are developed to the north and south of a regionally important, E–W- trending syn-sedimentary fault. The samples were dated wherever possible by three independent methods, namely utilizing Sr isotopes, calcareous nannofossils and planktonic foraminifera. Some of the Sr isotopic dates are incompatible with the nannofossil and/or the planktonic foraminiferal dates. This is mainly due to reworking within gravity-deposited or current-affected sediments. When combined, the reliable age data allow an overall biostratigraphy and chronology to be erected. Several of the boundaries of previously defined formations are revised. Sr data that are incompatible with well-constrained biostratigraphical ages are commonly of Early Miocene age. This is attributed to a regional uplift event located to the east of Cyprus, specifically the collision of the Anatolian (Eurasian) and Arabian (African) plates during Early Miocene time. This study, therefore, demonstrates that analytically sound Sr isotopic ages can yield geologically misleading ages, particularly where extensive sediment reworking has occurred. Convincing ages are obtained when isotopic dating is combined with as many forms of biostratigraphical dating as possible, and this may also reveal previously unsuspected geological events (e.g. tectonic uplift or current activity). Article in Journal/Newspaper Planktonic foraminifera ARUd'A - Archivio Istituzionale della ricerca dell'università Chieti-Pescara (IRIS) Geological Magazine 150 2 333 359 |
institution |
Open Polar |
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ARUd'A - Archivio Istituzionale della ricerca dell'università Chieti-Pescara (IRIS) |
op_collection_id |
ftunivchietiiris |
language |
English |
description |
New age data from Sr isotope analysis and both planktonic foraminifera and nannofossils are presented and discussed here for the Upper Eocene–Upper Miocene sedimentary rocks of the Deg ̆irmenlik (Kythrea) Group. New dating is also given of some Cretaceous and Pliocene sediments. In a revised stratigraphy the Deg ̆irmenlik (Kythrea) Group is divided into ten formations. Different Upper Miocene formations are developed to the north and south of a regionally important, E–W- trending syn-sedimentary fault. The samples were dated wherever possible by three independent methods, namely utilizing Sr isotopes, calcareous nannofossils and planktonic foraminifera. Some of the Sr isotopic dates are incompatible with the nannofossil and/or the planktonic foraminiferal dates. This is mainly due to reworking within gravity-deposited or current-affected sediments. When combined, the reliable age data allow an overall biostratigraphy and chronology to be erected. Several of the boundaries of previously defined formations are revised. Sr data that are incompatible with well-constrained biostratigraphical ages are commonly of Early Miocene age. This is attributed to a regional uplift event located to the east of Cyprus, specifically the collision of the Anatolian (Eurasian) and Arabian (African) plates during Early Miocene time. This study, therefore, demonstrates that analytically sound Sr isotopic ages can yield geologically misleading ages, particularly where extensive sediment reworking has occurred. Convincing ages are obtained when isotopic dating is combined with as many forms of biostratigraphical dating as possible, and this may also reveal previously unsuspected geological events (e.g. tectonic uplift or current activity). |
author2 |
Mccay, G. A. Robertson, A. H. F. Kroon, D. Raffi, Isabella Ellam, R. M. Necdet, M. |
format |
Article in Journal/Newspaper |
author |
MCCAY G. A. ROBERTSON A. H. F. KROON D. ELLAM R. M. NECDET M. RAFFI, Isabella |
spellingShingle |
MCCAY G. A. ROBERTSON A. H. F. KROON D. ELLAM R. M. NECDET M. RAFFI, Isabella Stratigraphy of Cretaceous to Lower Pliocene sediments in the northern part of Cyprus based on comparative 87Sr/86Sr isotopic, nannofossil and planktonic foraminiferal dating |
author_facet |
MCCAY G. A. ROBERTSON A. H. F. KROON D. ELLAM R. M. NECDET M. RAFFI, Isabella |
author_sort |
MCCAY G. A. |
title |
Stratigraphy of Cretaceous to Lower Pliocene sediments in the northern part of Cyprus based on comparative 87Sr/86Sr isotopic, nannofossil and planktonic foraminiferal dating |
title_short |
Stratigraphy of Cretaceous to Lower Pliocene sediments in the northern part of Cyprus based on comparative 87Sr/86Sr isotopic, nannofossil and planktonic foraminiferal dating |
title_full |
Stratigraphy of Cretaceous to Lower Pliocene sediments in the northern part of Cyprus based on comparative 87Sr/86Sr isotopic, nannofossil and planktonic foraminiferal dating |
title_fullStr |
Stratigraphy of Cretaceous to Lower Pliocene sediments in the northern part of Cyprus based on comparative 87Sr/86Sr isotopic, nannofossil and planktonic foraminiferal dating |
title_full_unstemmed |
Stratigraphy of Cretaceous to Lower Pliocene sediments in the northern part of Cyprus based on comparative 87Sr/86Sr isotopic, nannofossil and planktonic foraminiferal dating |
title_sort |
stratigraphy of cretaceous to lower pliocene sediments in the northern part of cyprus based on comparative 87sr/86sr isotopic, nannofossil and planktonic foraminiferal dating |
publishDate |
2013 |
url |
http://hdl.handle.net/11564/425483 https://doi.org/10.1017/S0016756812000465 |
genre |
Planktonic foraminifera |
genre_facet |
Planktonic foraminifera |
op_relation |
info:eu-repo/semantics/altIdentifier/wos/WOS:000314295500007 volume:150 issue:2 firstpage:333 lastpage:359 numberofpages:27 journal:GEOLOGICAL MAGAZINE http://hdl.handle.net/11564/425483 doi:10.1017/S0016756812000465 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-84873349469 |
op_doi |
https://doi.org/10.1017/S0016756812000465 |
container_title |
Geological Magazine |
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150 |
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2 |
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333 |
op_container_end_page |
359 |
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