Land–sea correlation of Middle Pleistocene temperate sub-stages using high-precision uranium-series dating of tufa deposits from southern England |
| |
Affiliation: | 1. Università di Torino, Dipartimento di Scienze della Terra, Via Valperga Caluso 35, 10125 Torino, Italy;2. Università di Modena e Reggio Emilia, Dipartimento di Scienze Chimiche e Geologiche, Piazza S. Eufemia 19, 41100 Modena, Italy;3. Università di Parma, Dipartimento di Fisica e Scienze della Terra, Parco Area delle Scienze 157/A, 43100 Parma, Italy;4. Alpine Laboratory of Palaeomagnetism (ALP), Via G.U. Luigi Massa 6, 12016 Peveragno, CN, Italy;1. Institute of Geology, University of Innsbruck, Innrain 52, 6020 Innsbruck, Austria;2. Department of Human Evolution, Max Planck Institute for Evolutionary Anthropology, D-04103 Leipzig, Germany |
| |
Abstract: | High-precision U-series dating allows a direct correlation to be made between terrestrial records of the penultimate interglacial (Marine Oxygen Isotope Stage 7 (MIS 7)) in Britain and sub-stage climate forcing in the marine oxygen isotope sequence. U-series ages of surficial tufa deposits are of sufficient precision to correlate discrete episodes of temperate conditions with individual warm sub-stages within MIS 7. Furthermore, detailed biostratigraphy allows periods of faunal turnover to be correlated with cold climates and lowered sea level. Ecological and environmental conditions in Britain during MIS 7 are therefore driven by the short-lived, sub-stage climate forcing that is observable in the marine isotope record. It is clear that interglacial climates are highly dynamic, producing multiple climatic optima and a diverse range of environments within single warm episodes. Consequently sub-stage records of climate forcing are crucial frameworks for reconstructing terrestrial records of environmental change. |
| |
Keywords: | |
本文献已被 ScienceDirect 等数据库收录! |
|