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High-resolution seismic reflection profiles from Lake Titicaca, Peru-Bolivia; evidence for Holocene aridity in the tropical Andes

Geoffrey O. Seltzer, Paul Baker, Scott Cross, Robert Dunbar and Sherilyn C. Fritz
High-resolution seismic reflection profiles from Lake Titicaca, Peru-Bolivia; evidence for Holocene aridity in the tropical Andes
Geology (Boulder) (February 1998) 26 (2): 167-170

Abstract

High-resolution seismic reflection profiles of the sediments of Lake Titicaca, Peru-Bolivia, suggest that lake levels in the recent past were considerably lower than today. Incised channels on the major deltas extend to depths of 85 m below modern lake level. Erosional truncation of onlapping seismic reflectors is found at similar depths. This interpretation of the seismic data is supported by analyses of sediment cores from the lake, which indicate that there was a significant drop in lake level during the early to mid-Holocene.


ISSN: 0091-7613
EISSN: 1943-2682
Coden: GLGYBA
Serial Title: Geology (Boulder)
Serial Volume: 26
Serial Issue: 2
Title: High-resolution seismic reflection profiles from Lake Titicaca, Peru-Bolivia; evidence for Holocene aridity in the tropical Andes
Affiliation: Syracuse University, Department of Earth Sciences, Syracuse, NY, United States
Pages: 167-170
Published: 199802
Text Language: English
Publisher: Geological Society of America (GSA), Boulder, CO, United States
References: 25
Accession Number: 1998-022960
Categories: Quaternary geologyApplied geophysics
Document Type: Serial
Bibliographic Level: Analytic
Illustration Description: sects., sketch maps
S16°16'00" - S15°19'00", W70°02'60" - W68°43'60"
Secondary Affiliation: Duke University, Durham, NC, USA, United StatesStanford University, Stanford, CA, USA, United StatesLehigh University, Bethlehem, PA, USA, United States
Country of Publication: United States
Secondary Affiliation: GeoRef, Copyright 2017, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States
Update Code: 199809
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