A Holocene Sedimentary Record from Lake Silvana, SE Brazil - Evidence for Paleoclimatic Changes from Mineral, Trace-Metal and Pollen Data (Paperback)

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.

General

Imprint:	Springer-Verlag
Country of origin:	Germany
Series:	Lecture Notes in Earth Sciences, 88
Release date:	2001
First published:	1999
Authors:	Saulo Rodrigues-Filho • German M uller
Dimensions:	235 x 155 x 6mm (L x W x T)
Format:	Paperback
Pages:	98
ISBN-13:	978-3-540-66205-1
Categories:	Books > Science & Mathematics > Chemistry > Mineralogy > General Books > Earth & environment > Earth sciences > Geology & the lithosphere > Soil science, sedimentology Books > Earth & environment > Earth sciences > Geology & the lithosphere > Historical geology
LSN:	3-540-66205-7
Barcode:	9783540662051

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