A Holocene Sedimentary Record from Lake Silvana, SE Brazil
Evidence for Paleoclimatic Changes from Mineral, Trace-Metal and Pollen Data
Authors: Rodrigues-Filho, Saulo, Müller, German
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- About this book
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Mineralogical-sedimentological and geochemical investigations in combination with pollen data of a 12.7-m-long dated sediment core from Lake Silvana, SE Brazil, permit the reconstruction of the climatic history over the past 10,000 years. The lowermost section (I) reflects a coarse paleosol-type sediment with abundant plant debris and rootlets; pollen indicates grassland vegetation. Section II represents fine-grained lake sediments; pollen indicates a savanna-like vegetation. Section III represents a pollen-free, coarse-grained allogenic sediment deposited under high transportation energy (increased precipitation). Section IV, a greenish sequence with increasing C content towards the top, has a pollen spectrum of present-day vegetation (semideciduous forest). The different sediment sections show a connection with erosional phases in the catchment of the lake, based on mineralogy and geochemistry, which are a response to climate development.
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Bibliographic Information
- Bibliographic Information
-
- Book Title
- A Holocene Sedimentary Record from Lake Silvana, SE Brazil
- Book Subtitle
- Evidence for Paleoclimatic Changes from Mineral, Trace-Metal and Pollen Data
- Authors
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- Saulo Rodrigues-Filho
- German Müller
- Series Title
- Lecture Notes in Earth Sciences
- Series Volume
- 88
- Copyright
- 1999
- Publisher
- Springer-Verlag Berlin Heidelberg
- Copyright Holder
- Springer-Verlag Berlin Heidelberg
- eBook ISBN
- 978-3-540-48679-4
- DOI
- 10.1007/BFb0048176
- Softcover ISBN
- 978-3-540-66205-1
- Series ISSN
- 0930-0317
- Edition Number
- 1
- Number of Pages
- XII, 98
- Number of Illustrations
- 51 b/w illustrations
- Topics
