globalchange  > 气候变化与战略
DOI: 10.1016/j.earscirev.2021.103607
论文题名:
Reply to comment on “Bekker, A., Krapež, B., Karhu, J.A., 2020. Correlation of the stratigraphic cover of the Pilbara and Kaapvaal cratons recording the lead up to Paleoproterozoic Icehouse and the GOE. Earth-Science Reviews, 211, 103,389” by Pascal Philippot, Bryan A. Killingsworth, Jean-Louis Paquette, Svetlana Tessalina, Pierre Cartigny, Stefan V. Lalonde, Christophe Thomazo, Janaina N. Ávila, Vincent Busigny
作者: Bekker A.; Krapež B.; Karhu J.A.; Chamberlain K.
刊名: Earth Science Reviews
ISSN: 00128252
出版年: 2021
卷: 218
语种: 英语
中文关键词: Chemostratigraphy ; Early Paleoproterozoic global correlations ; Great oxidation event ; Paleoproterozoic glaciations ; Pilbara Craton ; Turee Creek Basin
英文关键词: chemostratigraphy ; correlation ; craton ; geochemistry ; geochronology ; glaciation ; oxidation ; paleoclimate ; Proterozoic ; tectonostratigraphy ; Australia ; Kaapvaal Craton ; Pilbara Block ; Western Australia
英文摘要: Bekker et al. (2020) and Philippot et al. (2018) discussed implications of the geological and geochemical records of the Turee Creek Basin in Western Australia with regards to the understanding of the Great Oxidation Episode (GOE). Whereas Bekker et al. (2020) inferred that, due to its deposition in a foreland basin with high sedimentation rates, the succession bears a high-resolution record leading to, and of, the early stage of the GOE, Philippot et al. (2018) maintained that it provides a detailed and continuous (i.e., stratigraphically unbroken) record spanning 2.45 Ga to 2.22 Ga. The disagreement is largely rooted in different readings of the geochronological data presented in Caquineau et al. (2018) and Philippot et al. (2018), but also in different views on the tectonostratigraphic evolution of the Turee Creek Basin, chemostratigraphic records of the succession, and correlation with other early Paleoproterozoic sequences. The disagreement has far-reaching implications for the GOE and its relationship to early Paleoproterozoic climate changes. Philippot et al. (2021) provided a detailed critique of our approach, allowing us to clarify our original interpretations. Based on the analysis provided below, we stand by our original reading, and provide a more nuanced view of the early Paleoproterozoic global correlations and events. By combining global records, we infer that the ~2.45–2.22 Ga time interval experienced so-far underappreciated large-scale swings in atmospheric oxygen level across the 10−5 PAL threshold that were associated with, and likely led to, early Paleoproterozoic glaciations by impacting atmospheric levels of methane, a powerful greenhouse gas in an anoxic atmosphere. © 2021 Elsevier B.V.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/166339
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作者单位: Department of Earth and Planetary Sciences, University of California, Riverside, CA 92521, United States; Department of Geology, University of Johannesburg, Johannesburg, 2006, South Africa; School of Earth Sciences, The University of Western Australia, Perth, Western Australia 6009, Australia; Department of Geosciences and Geography, University of Helsinki, Helsinki, 00014, Finland; Department of Geology and Geophysics, University of Wyoming, Laramie, WY 82071, United States

Recommended Citation:
Bekker A.,Krapež B.,Karhu J.A.,et al. Reply to comment on “Bekker, A., Krapež, B., Karhu, J.A., 2020. Correlation of the stratigraphic cover of the Pilbara and Kaapvaal cratons recording the lead up to Paleoproterozoic Icehouse and the GOE. Earth-Science Reviews, 211, 103,389” by Pascal Philippot, Bryan A. Killingsworth, Jean-Louis Paquette, Svetlana Tessalina, Pierre Cartigny, Stefan V. Lalonde, Christophe Thomazo, Janaina N. Ávila, Vincent Busigny[J]. Earth Science Reviews,2021-01-01,218
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