Geochemical investigations of Quaternary paleoclimate and environmental change from Lake Titicaca, South America and Prydz Bay, Antarctica

Author(s): Theissen, Kevin Matthew
Source: 205p. Institution: Stanford University, Stanford, CA, United States
Note: In English. 202 refs. Doctoral dissertation
Summary: This dissertation is comprised of multi-proxy investigations of Quaternary paleoclimatic and environmental change from two regions of importance to the global climate system: the Central Andes of South America and East Antarctica. The results of this study indicate that the mid-Holocene multi-millennial drought featured at least three multi-decadal-centrury scale arid episodes in which lake level dropped by up to 30 meters. Changes in the size of the Lambert Glacier-Amery Ice Shelf system serve as a proxy for the larger East Antarctic ice sheet. (modified jour. abstr.)
Year of Publication: 2003
Research Program: ODP Ocean Drilling Program
Key Words: 02 Geochemistry; 24 Surficial Geology, Quaternary Geology; Algae; Alkenones; Altiplano; Amery Ice Shelf; Andes; Antarctic ice sheet; Antarctica; Cenozoic; Central Andes; Drought; East Antarctica; Fatty acids; Foraminifera; Glacial geology; Glaciation; Globigerinacea; Holocene; Ice sheets; Interglacial environment; Invertebrata; Isotope ratios; Isotopes; Ketones; Lacustrine environment; Lake Titicaca; Lake sediments; Lake-level changes; Lambert Glacier; Leg 188; Lipids; Mac Robertson Land; Microfossils; Middle Holocene; Neogloboquadrina; Neogloboquadrina pachyderma; O-18/O-16; ODP Site 1167; Ocean Drilling Program; Organic acids; Organic compounds; Oxygen; Paleoclimatology; Plantae; Pleistocene; Protista; Prydz Bay; Quaternary; Rotaliina; Sediments; South America; Southern Ocean; Stable isotopes
Coordinates: S161600 S151900 W0684400 W0700300
S662400 S662400 E0721800 E0721700
Record ID: 2004005505
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