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New application of alkenone paleothermometry to marine sections exposed on land and implications for Mediterranean Sea surface temperature reconstruction Laura Cleaveland - Brown University, Dept. of Geological Sciences This project investigates the validity of alkenone sea surface temperature (SST) estimates generated from marine sediments that have been uplifted and exposed on land. The alkenone proxy has been widely used to generate SST records from deep sea sediment cores retrieved by ocean drilling operations. If we can show that the alkenone proxy can also be applied to rocks that have been exposed on land, many avenues for future study will become available. Specifically, we hope to use this technique to document the SST history of the Mediterranean region over the course of the Miocene-Pliocene cooling trajectory that ultimately led to major northern hemisphere glaciation approximately 2.75 million years ago. ©2006 - 2001 Evolving Earth Foundation. All rights reserved |
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