Chemical Fingerprint of Bulk Tephra from Late Pleistone Holocene Volcanoes in the Northern Antartic Peninsula Area

S. Kraus (Editor)
Instituto Antártico Chileno, Punta Arenas, Chile

A. Kurbatov (Editor)
University of Maine, Orono, USA

Series: Earth Sciences in the 21st Century
BISAC: SCI019000

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Volume 10

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Special issue: Resilience in breaking the cycle of children’s environmental health disparities
Edited by I Leslie Rubin, Robert J Geller, Abby Mutic, Benjamin A Gitterman, Nathan Mutic, Wayne Garfinkel, Claire D Coles, Kurt Martinuzzi, and Joav Merrick

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New tephra and lava samples were collected from volcanic centers in the northern part of the Antarctic Peninsula. Geochemical analyses of these samples provide a foundation for geochemical fingerprinting of volcanic products originated from these volcanoes. Melville Peak and Penguin Island appear to represent the most primitive magma source while Sail Rock and Bridgeman Island exhibit high Al content, and Paulet Island extremely high Sr levels. Volcanoes located along the Larsen Rift (Cape Purvis and Paulet Island) show Nb/Y ratios higher than 0.67 along with elevated Th/Yb and Ta/Yb ratios, and enriched LREE. The new geochemical data will provide a base for differentiation of tephra layers identified in ice and lake sediment cores drilled from the region and will help to establish time markers used in stratigraphy. This book reviews research for geochemical fingerprinting of volcanoes in the Antarctica peninsula area. (Imprint: Nova)

ABSTRACT

INTRODUCTION

GEOLOGICAL BACKGROUND

PREVIOUS WORK

ANTARCTIC PENINSULA TEPHRA LAYERS ORIGINATING FROM THE ANTARCTIC PLATE

RESULTS FROM FIELDWORK

SAMPLE DESCRIPTION AND METHODOLOGY

CLIMATE IMPACT

CONCLUSION

OUTLOOK

ACKNOWLEDGEMENTS

REFERENCES

INDEX

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