Pliocene Paleoclimate and East Antarctic Ice-Sheet History from Surficial Ash Deposits

• Published in: Science (American Association for the Advancement of Science) Vol. 260; no. 5108; pp. 667 - 670
• Main Authors: Marchant, David R., Swisher, Carl C., Lux, Daniel R., West, David P., Denton, George H.
• Format: Journal Article
• Language: English
• Published: United States American Society for the Advancement of Science 30.04.1993; American Association for the Advancement of Science
• Subjects: 540110; AMBIENT TEMPERATURE; ANTARCTIC REGIONS; ANTARCTICA; Atmospheric temperature; CENOZOIC ERA; Climate models; CLIMATIC CHANGE; CRYOSPHERE; Crystals; Desert pavements; ENVIRONMENTAL IMPACTS; ENVIRONMENTAL SCIENCES; GEOLOGIC AGES; Glacial ablation; Global warming; GREENHOUSE EFFECT; ICE; ICE CAPS; Ice sheets; MELTING; PALEOCLIMATOLOGY; PALEONTOLOGY; PHASE TRANSFORMATIONS; Pliocene; PLIOCENE EPOCH; POLAR REGIONS; TERTIARY PERIOD; Valleys; Volcanic ash; Antarctica

The preservation, age, and stratigraphic relation of an in situ ashfall layer with an underlying desert pavement in Arena Valley, southern Victoria Land, indicate that a cold-desert climate has persisted in Arena Valley during the past 4.3 million years. These data indicate that the present East Ant...