Reply to Comment on “Uranium series dating of Great Artesian Basin travertine deposits: Implications for palaeohydrogeology and palaeoclimate” by Uysal et al. (2019).

Stacey C. Priestley, Karl E. Karlstrom, Andrew J. Love, Laura J. Crossey, Victor J. Polyak, Yemane Asmerom, Karina T. Meredith, Ryan Crow, Mark N. Keppel, Marie A. Habermehl

Research output: Contribution to journalComment/debate

Abstract


1. Reply
Tonguc Uysal and co-authors (this issue) propose that at least some of the U-series ages reported by Priestley et al. (2018) and Ring et al. (2016) provide minimum ages of movement at the Norwest Fault Zone in central Australia resulting from significant CO2 production due to mantle degassing related to active tectonics. We thank Tonguc Uysal and co-authors for their discussion on the role of tectonics and CO2 degassing in travertine precipitation and note that we had previously published (and agree with) the importance of mantle degassing as a source of CO2 that closely interacts with palaeohydrogeologic and palaeoclimatic forcings in explaining the rate and distribution of travertine deposition in the southwestern Great Artesian Basin (GAB) of central Australia. Based in part on western U.S. analogues (Crossey et al., 2016; Karlstrom et al., 2013a), we proposed and explored a model for these processes and their implications for the GAB in previous publications (Crossey et al., 2013; Karlstrom et al., 2013b) whereas Priestley et al. (2018) focused more specifically on palaeoclimate implications.
Original languageEnglish
Article number109421
Number of pages5
JournalPalaeogeography, Palaeoclimatology, Palaeoecology
Volume537
DOIs
Publication statusPublished - 1 Jan 2020

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