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

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 sed...

Πλήρης περιγραφή

Λεπτομέρειες βιβλιογραφικής εγγραφής
Κύριοι συγγραφείς: Rodrigues-Filho, Saulo (Συγγραφέας, http://id.loc.gov/vocabulary/relators/aut), Müller, German (http://id.loc.gov/vocabulary/relators/aut)
Συγγραφή απο Οργανισμό/Αρχή: SpringerLink (Online service)
Μορφή: Ηλεκτρονική πηγή Ηλ. βιβλίο
Γλώσσα:English
Έκδοση: Berlin, Heidelberg : Springer Berlin Heidelberg : Imprint: Springer, 1999.
Έκδοση:1st ed. 1999.
Σειρά:Lecture Notes in Earth Sciences, 88
Θέματα:
Διαθέσιμο Online:Full Text via HEAL-Link
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245 1 2 |a A Holocene Sedimentary Record from Lake Silvana, SE Brazil  |h [electronic resource] :  |b Evidence for Paleoclimatic Changes from Mineral, Trace-Metal and Pollen Data /  |c by Saulo Rodrigues-Filho, German Müller. 
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505 0 |a Abstract -- Methods -- Results -- Discussion -- Conclusions. 
520 |a 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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