Identification of the last glacial maximum in the Upper Paleolithic of Portugal using magnetic susceptibility measurements of Caldeirão Cave sediments
✍ Scribed by Brooks B. Ellwood; João Zilhão; Francis B. Harrold; William Balsam; Burke Burkart; Gary J. Long; André Debénath; Abdeljalil Bouzouggar
- Publisher
- John Wiley and Sons
- Year
- 1998
- Tongue
- English
- Weight
- 245 KB
- Volume
- 13
- Category
- Article
- ISSN
- 0883-6353
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✦ Synopsis
We have sampled Upper and Middle Paleolithic sediments in Caldeira ˜o Cave, Portugal, for paleoclimatic analysis. This work involved measuring magnetic susceptibility (MS) on continuous vertical profiles of a series of ȁ8 cc sediment samples, and using the MS data as a paleoclimate proxy. Previous work has shown that caves can be ideal recorders of paleoclimatic variations because they are protected environments. Pedogenesis outside the cave during time of cool climate produces sediments with low MS magnitudes, while warmer climates yield higher MS magnitudes. Eroded soils collect in caves in sediment sequences where further pedogenesis and biological disturbance is mini-