Oxidative mafic rock weathering through geological time
Citation:
Michael G. Babechuk, 'Oxidative mafic rock weathering through geological time', [thesis], Trinity College (Dublin, Ireland). Department of Geology, 2015, pp 318Download Item:
Abstract:
Oxidative chemical weathering requires the presence of free oxygen in the Earth's atmosphere.
Reconstructing the terrestrial oxidation history in the ancient rock record has helped to detect the
intrinsic links between atmospheric composition and biological evolution of oxygenic
photosynthesis. This thesis contributes to this theme via the study of oxidative chemical weathering
at different stages of Earth's history and at different weathering intensities. It presents detailed
geochemical investigations of three profiles developed on mafic rock. Laterite (Bidar) and saprolite
(Chhindwara) profiles hosted on Deccan Traps basalt (India) capture weathering in the
Phanerozoic, while the ca. 1.85 Ga Flin Flon paleosol (Canada) hosted on greenstone captures
weathering after the Great Oxidation Event (GOE, ca. 2.4-2.3 Ga).
Author: Babechuk, Michael G.
Advisor:
Kamber, BaltzQualification name:
Doctor of Philosophy (Ph.D.)Publisher:
Trinity College (Dublin, Ireland). Department of GeologyNote:
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Full text availableKeywords:
Geology, Ph.D., Ph.D. Trinity College Dublin.Metadata
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