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Precipitation trapped in datable rock-forming minerals: estimating Antarctic palaeoelevations - a discussion

Wendt, Anke S.; Vaughan, Alan P.M.; Boyce, Adrian J.. 2006 Precipitation trapped in datable rock-forming minerals: estimating Antarctic palaeoelevations - a discussion. Antarctic Science, 18 (1). 123-139. 10.1017/S0954102006000125

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Abstract/Summary

Meteoric water that interacted with minerals during retrogressive metamorphism and hydrothermalism in the late-stage of mountain building processes contains hydrogen and oxygen isotopes that are potential proxies for palaeoelevation reconstruction in Antarctica. The effects of temperature on meteoric isotopic signatures, meteoric crustal infiltration processes, and the mechanisms of capture and preservation of meteoric δD and δ18O values in rock-forming minerals are discussed. Special emphasis is given to Antarctica’s geographical high-latitude position and climatic fluctuations over time and to the highmountain ranges of continental Antarctica, which were tectonically active regions in the past. In this context, a new compilation of recent Antarctic snow and ice δD and δ18O data is presented, by which we demonstrate that net elevations versus isotopic depletions are positively correlated for continental Antarctica - a prime requisite when estimating palaeoelevations.

Item Type: Publication - Article
Digital Object Identifier (DOI): 10.1017/S0954102006000125
Programmes: BAS Programmes > Antarctic Science in the Global Context (2000-2005) > Antarctica in the Dynamic Global Plate System
ISSN: 0954-1020
Format Availability: Electronic, Print
Additional Information. Not used in RCUK Gateway to Research.: Full text not available from this repository
Additional Keywords: Minerals ; Isotopes ; Hydrogen ; Oxygen ; Water
NORA Subject Terms: Earth Sciences
Date made live: 24 Jul 2007 09:30
URI: http://nora.nerc.ac.uk/id/eprint/155

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