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Long-term cycles of Triassic climate change: a new δ18O record from conodont apatite

Trotter, Julie A.; Williams, Ian S.; Nicora, Alda; Mazza, Michele; Rigo, Manuel

Description

A new oxygen isotope (δ18O) record derived from conodont apatite reveals variable long-term climate trends throughout the Triassic period. This record shows several major, first order, negative shifts reflecting intense warming episodes, not only the well-known extreme PTB–Early Triassic event (∼5‰), but also two large cycles of similar magnitude (∼1.5, ∼1.7‰) and duration (∼7 Myrs) during the late Carnian and late Norian. Between the PTB–Early Triassic and Carnian major episodes, three rapid...[Show more]

CollectionsANU Research Publications
Date published: 2015-04-01
Type: Journal article
URI: http://hdl.handle.net/1885/13090
Source: Earth and Planetary Science Letters
DOI: 10.1016/j.epsl.2015.01.038

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