Insights into the Middle–Late Miocene palaeoceanographic development of Cyprus (eastern Mediterranean) from a new δ18O and δ13C stable isotope composite record

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Publicado en:Climate of the Past vol. 21, no. 12 (2025), p. 2501-2524
Autor principal: Cannings, Torin
Otros Autores: Robertson, Alastair H. F., Kroon, Dick
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Copernicus GmbH
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Acceso en línea:Citation/Abstract
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024 7 |a 10.5194/cp-21-2501-2025  |2 doi 
035 |a 3278147181 
045 2 |b d20250101  |b d20251231 
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100 1 |a Cannings, Torin  |u School of GeoSciences, Grant Institute, University of Edinburgh, James Hutton Road, Edinburgh EH9 3FE, UK; present address: Department of Earth Sciences, University of Geneva, Geneva, 1205, Switzerland 
245 1 |a Insights into the Middle–Late Miocene palaeoceanographic development of Cyprus (eastern Mediterranean) from a new δ18O and δ13C stable isotope composite record 
260 |b Copernicus GmbH  |c 2025 
513 |a Journal Article 
520 3 |a The Middle to Late Miocene was a time of significant global climate change. In the eastern Mediterranean region, these climatic changes coincided with important tectonic events, which resulted in changes to the organisation of oceanic gateways, altering oceanic circulation patterns. The Miocene Climatic Optimum (MCO) is regarded as the most recent CO2-driven warming event in Earth's climate history and has been proposed as an analogue for future climate change. We present a ca. 12 Ma record of oxygen and carbon stable isotopes from the island of Cyprus to help constrain the nature and extent of Miocene palaeoceanographic changes in the eastern Mediterranean region. Cyprus exposes Neogene deep-sea pelagic sedimentary rocks which are suitable for stable isotope studies. Our composite geochemical record integrates data from the Lower to Upper Miocene succession at Kottaphi Hill along the northern margin of the Troodos ophiolite, with the Upper Miocene succession at Lapatza Hill in the north of Cyprus. Calcareous nannofossil biostratigraphy reveals that the composite record spans the Miocene Climatic Optimum's onset to the beginning of the Messinian Salinity Crisis (MSC). The new stable isotopic record reveals a complex interplay between global climate change and regional to local tectonic changes. In the earlier part of the record, global climate changes dominated; however, by the end of the Late Miocene, tectonic events culminated in isolation of the Mediterranean basins, resulting in a deviation from global open-ocean trends. Strontium (Sr) isotope analysis is used primarily to help constrain the age of the Miocene successions sampled and implies changes in the connectivity of the eastern Mediterranean basins during the Late Miocene. The combined data provide a useful reference for oceanographic changes in the eastern Mediterranean basins during the Miocene, compared to the global oceans. 
651 4 |a United States--US 
651 4 |a Indian Ocean 
651 4 |a Cyprus 
651 4 |a Mediterranean Sea 
651 4 |a Atlantic Ocean 
653 |a Strontium 
653 |a Carbon 13 
653 |a Carbon dioxide 
653 |a Sea level 
653 |a Isotope studies 
653 |a Ocean circulation patterns 
653 |a Oceans 
653 |a Strontium isotopes 
653 |a Salinity 
653 |a Climate change 
653 |a Deep sea 
653 |a Cooling 
653 |a Isotopes 
653 |a Carbon 
653 |a Miocene 
653 |a Stable isotopes 
653 |a Basins 
653 |a Neogene 
653 |a Plate tectonics 
653 |a Deep water 
653 |a Sedimentary rocks 
653 |a Circulation patterns 
653 |a Global climate 
653 |a Temperature 
653 |a Biostratigraphy 
653 |a Future climates 
653 |a Ocean circulation 
653 |a Tectonics 
653 |a Messinian 
653 |a Environmental 
700 1 |a Robertson, Alastair H. F.  |u School of GeoSciences, Grant Institute, University of Edinburgh, James Hutton Road, Edinburgh EH9 3FE, UK 
700 1 |a Kroon, Dick  |u School of GeoSciences, Grant Institute, University of Edinburgh, James Hutton Road, Edinburgh EH9 3FE, UK 
773 0 |t Climate of the Past  |g vol. 21, no. 12 (2025), p. 2501-2524 
786 0 |d ProQuest  |t Continental Europe Database 
856 4 1 |3 Citation/Abstract  |u https://www.proquest.com/docview/3278147181/abstract/embedded/7BTGNMKEMPT1V9Z2?source=fedsrch 
856 4 0 |3 Full Text  |u https://www.proquest.com/docview/3278147181/fulltext/embedded/7BTGNMKEMPT1V9Z2?source=fedsrch 
856 4 0 |3 Full Text - PDF  |u https://www.proquest.com/docview/3278147181/fulltextPDF/embedded/7BTGNMKEMPT1V9Z2?source=fedsrch