| _version_ | 1867171360259702784 |
|---|---|
| author | Thunell, Robert C Williams, Douglas F Tappa, Eric Rio, Domenico Raffi, Isabella |
| author_facet | Thunell, Robert C Williams, Douglas F Tappa, Eric Rio, Domenico Raffi, Isabella |
| collection | Datos científicos de ciencias marinas y ambientales |
| contents | Planktonic foraminiferal oxygen and carbon isotope analyses from Tyrrhenian Sea Ocean Drilling Program (ODP) Site 653 provide a continuous record of the Pliocene-Pleistocene paleoceanographic history of the Mediterranean. Long-term trends in oxygen isotopes primarily reflect changes in global climatic conditions, with a more local or regional signal superimposed on this record. For example, significant enrichments in 18O due to decreases in surface water temperature and/or increases in continental ice volume occurred at 3.1, 2.7, 2.1, 1.6, and 0.4 Ma. In contrast to most open-ocean results, the early Pliocene 6lsO record of Site 653 exhibits high-amplitude fluctuations indicative of very unstable climatic conditions in this region. Another unique aspect of this Mediterranean d18Orecord is the pronounced cooling at the Pliocene/Pleistocene boundary. The carbon isotope record for Site 653 also exhibits high-amplitude variability throughout the Pliocene-Pleistocene. This variability most probably reflects changes in the carbon isotopic composition of the source of Mediterranean surface waters. |
| format | Dataset Open Access |
| id | pangaea_https___doi_org_10_1594_PANGAEA_746042 |
| institution | PANGAEA |
| language | en |
| publishDate | 1990 |
| publisher | PANGAEA |
| record_format | pangaea |
| spellingShingle | Pliocene-Pleistocene stable isotope record of ODP Site 107-653 Thunell, Robert C Williams, Douglas F Tappa, Eric Rio, Domenico Raffi, Isabella 107-653; 107-653A; 107-653B; CLIVAMPcruises; COMPCORE; Composite Core; DRILL; Drilling/drill rig; Joides Resolution; Leg107; Ocean Drilling Program; ODP; PC; Piston corer; Ship of opportunity; Tirreno Sea; TR171-06; TR171-09; V10; V10-73; Vema Planktonic foraminiferal oxygen and carbon isotope analyses from Tyrrhenian Sea Ocean Drilling Program (ODP) Site 653 provide a continuous record of the Pliocene-Pleistocene paleoceanographic history of the Mediterranean. Long-term trends in oxygen isotopes primarily reflect changes in global climatic conditions, with a more local or regional signal superimposed on this record. For example, significant enrichments in 18O due to decreases in surface water temperature and/or increases in continental ice volume occurred at 3.1, 2.7, 2.1, 1.6, and 0.4 Ma. In contrast to most open-ocean results, the early Pliocene 6lsO record of Site 653 exhibits high-amplitude fluctuations indicative of very unstable climatic conditions in this region. Another unique aspect of this Mediterranean d18Orecord is the pronounced cooling at the Pliocene/Pleistocene boundary. The carbon isotope record for Site 653 also exhibits high-amplitude variability throughout the Pliocene-Pleistocene. This variability most probably reflects changes in the carbon isotopic composition of the source of Mediterranean surface waters. |
| title | Pliocene-Pleistocene stable isotope record of ODP Site 107-653 |
| topic | 107-653; 107-653A; 107-653B; CLIVAMPcruises; COMPCORE; Composite Core; DRILL; Drilling/drill rig; Joides Resolution; Leg107; Ocean Drilling Program; ODP; PC; Piston corer; Ship of opportunity; Tirreno Sea; TR171-06; TR171-09; V10; V10-73; Vema |
| url | https://doi.org/10.1594/PANGAEA.746042 |