Constraints on hydrological and paleotemperature variations in the Eastern Mediterranean region in the last 140 ka given by the delta D values of speleothem fluid inclusions
Speleothem fluid inclusions potentially provide vital data on the paleohydrological conditions in glacial and interglacial periods. We show here that δD analyses of fluid inclusions from speleothems in three caves in the Eastern Mediterranean region (Israel) provide a basis for understanding hydrolo...
| Main Authors: | , , , , , |
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| Format: | Conference item |
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2004
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| _version_ | 1826303847202553856 |
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| author | McGarry, S Bar-Matthews, M Matthews, A Vaks, A Schilman, B Ayalon, A |
| author_facet | McGarry, S Bar-Matthews, M Matthews, A Vaks, A Schilman, B Ayalon, A |
| author_sort | McGarry, S |
| collection | OXFORD |
| description | Speleothem fluid inclusions potentially provide vital data on the paleohydrological conditions in glacial and interglacial periods. We show here that δD analyses of fluid inclusions from speleothems in three caves in the Eastern Mediterranean region (Israel) provide a basis for understanding hydrological and temperature variations in the last 140ka. Using measured δD fluid inclusion values and temperature ranges constrained by the present-day Mediterranean Meteoric Water Line (MMWL) and the global MWL, we show a strong compatibility between the land and marine temperature records, with the highest land temperatures occurring at 120-130ka (17-22°C) and the present (18°C) and the lowest temperatures during the LGM, about 10°C lower than present. Interglacial waters are constrained to follow the MMWL and most glacial waters also plot close to the MMWL, with a slight shift towards the MWL. However, during two remarkable brief periods at the termination of the LGM, the waters plot on the MWL, suggesting that both sharp cooling and an increase in relative humidity above the EM Sea reduced d-excess values to those of the global system. © 2004 Elsevier Ltd. All rights reserved. |
| first_indexed | 2024-03-07T06:08:54Z |
| format | Conference item |
| id | oxford-uuid:eecb2a8e-bdee-4ab0-b341-d2c35d785eef |
| institution | University of Oxford |
| last_indexed | 2024-03-07T06:08:54Z |
| publishDate | 2004 |
| record_format | dspace |
| spelling | oxford-uuid:eecb2a8e-bdee-4ab0-b341-d2c35d785eef2022-03-27T11:35:30ZConstraints on hydrological and paleotemperature variations in the Eastern Mediterranean region in the last 140 ka given by the delta D values of speleothem fluid inclusionsConference itemhttp://purl.org/coar/resource_type/c_5794uuid:eecb2a8e-bdee-4ab0-b341-d2c35d785eefSymplectic Elements at Oxford2004McGarry, SBar-Matthews, MMatthews, AVaks, ASchilman, BAyalon, ASpeleothem fluid inclusions potentially provide vital data on the paleohydrological conditions in glacial and interglacial periods. We show here that δD analyses of fluid inclusions from speleothems in three caves in the Eastern Mediterranean region (Israel) provide a basis for understanding hydrological and temperature variations in the last 140ka. Using measured δD fluid inclusion values and temperature ranges constrained by the present-day Mediterranean Meteoric Water Line (MMWL) and the global MWL, we show a strong compatibility between the land and marine temperature records, with the highest land temperatures occurring at 120-130ka (17-22°C) and the present (18°C) and the lowest temperatures during the LGM, about 10°C lower than present. Interglacial waters are constrained to follow the MMWL and most glacial waters also plot close to the MMWL, with a slight shift towards the MWL. However, during two remarkable brief periods at the termination of the LGM, the waters plot on the MWL, suggesting that both sharp cooling and an increase in relative humidity above the EM Sea reduced d-excess values to those of the global system. © 2004 Elsevier Ltd. All rights reserved. |
| spellingShingle | McGarry, S Bar-Matthews, M Matthews, A Vaks, A Schilman, B Ayalon, A Constraints on hydrological and paleotemperature variations in the Eastern Mediterranean region in the last 140 ka given by the delta D values of speleothem fluid inclusions |
| title | Constraints on hydrological and paleotemperature variations in the Eastern Mediterranean region in the last 140 ka given by the delta D values of speleothem fluid inclusions |
| title_full | Constraints on hydrological and paleotemperature variations in the Eastern Mediterranean region in the last 140 ka given by the delta D values of speleothem fluid inclusions |
| title_fullStr | Constraints on hydrological and paleotemperature variations in the Eastern Mediterranean region in the last 140 ka given by the delta D values of speleothem fluid inclusions |
| title_full_unstemmed | Constraints on hydrological and paleotemperature variations in the Eastern Mediterranean region in the last 140 ka given by the delta D values of speleothem fluid inclusions |
| title_short | Constraints on hydrological and paleotemperature variations in the Eastern Mediterranean region in the last 140 ka given by the delta D values of speleothem fluid inclusions |
| title_sort | constraints on hydrological and paleotemperature variations in the eastern mediterranean region in the last 140 ka given by the delta d values of speleothem fluid inclusions |
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