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      A Unified Clumped Isotope Thermometer Calibration (0.5–1,100°C) Using Carbonate‐Based Standardization

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          Most cited references43

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          Unified equations for the slope, intercept, and standard errors of the best straight line

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            13C–18O bonds in carbonate minerals: A new kind of paleothermometer

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              The magnitude and duration of Late Ordovician-Early Silurian glaciation.

              Understanding ancient climate changes is hampered by the inability to disentangle trends in ocean temperature from trends in continental ice volume. We used carbonate "clumped" isotope paleothermometry to constrain ocean temperatures, and thereby estimate ice volumes, through the Late Ordovician-Early Silurian glaciation. We find tropical ocean temperatures of 32° to 37°C except for short-lived cooling by ~5°C during the final Ordovician stage. Evidence for ice sheets spans much of the study interval, but the cooling pulse coincided with a glacial maximum during which ice volumes likely equaled or exceeded those of the last (Pleistocene) glacial maximum. This cooling also coincided with a large perturbation of the carbon cycle and the Late Ordovician mass extinction.
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                Author and article information

                Contributors
                Journal
                Geophysical Research Letters
                Geophys Res Lett
                American Geophysical Union (AGU)
                0094-8276
                1944-8007
                April 16 2021
                April 2021
                April 16 2021
                : 48
                : 7
                Affiliations
                [1 ]Department of Earth, Atmospheric, and Planetary Sciences Massachusetts Institute of Technology Cambridge MA USA
                [2 ]Department of Earth and Environmental Sciences University of Michigan Ann Arbor MI USA
                [3 ]Institute for Geological and Geochemical Research Research Centre for Astronomy and Earth Sciences Budapest Hungary
                [4 ]Laboratoire des Sciences du Climat et de l’Environnement LSCE/IPSL, CEA‐CNRS‐UVSQ Université Paris‐Saclay Gif‐sur‐Yvette Cedex France
                [5 ]Université de Paris Institut de Physique du Globe de Paris CNRS Paris France
                [6 ]Department of Geosciences Texas Tech University Lubbock TX USA
                [7 ]Department of Earth and Planetary Sciences University of New Mexico Albuquerque NM USA
                [8 ]Department of Earth Science and Engineering Imperial College London, UK
                [9 ]Institute of Applied Geosciences Karlsruhe Institute of Technology Karlsruhe Germany
                [10 ]Department of Earth Sciences ETH Zürich Zürich Switzerland
                [11 ]Department of Earth and Space Sciences and Quaternary Research Center University of Washington Seattle WA USA
                Article
                10.1029/2020GL092069
                5806a75b-340e-4f36-9be7-7d405c1b9af6
                © 2021

                http://onlinelibrary.wiley.com/termsAndConditions#vor

                http://doi.wiley.com/10.1002/tdm_license_1.1

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