{"database":"biostudies-literature","file_versions":[],"scores":null,"additional":{"omics_type":["Unknown"],"volume":["10(9)"],"submitter":["Xia Z"],"pubmed_abstract":["The surficial cycling of Mg is coupled with the global carbon cycle, a predominant control of Earth's climate. However, how Earth's surficial Mg cycle evolved with time has been elusive. Magnesium isotope signatures of seawater (δ<sup>26</sup>Mg<sub>sw</sub>) track the surficial Mg cycle, which could provide crucial information on the carbon cycle in Earth's history. Here, we present a reconstruction of δ<sup>26</sup>Mg<sub>sw</sub> evolution over the past 2 billion years using marine halite fluid inclusions and sedimentary dolostones. The data show that δ<sup>26</sup>Mg<sub>sw</sub> decreased, with fluctuations, by about 1.4‰ from the Paleoproterozoic to the present time. Mass balance calculations based on this δ<sup>26</sup>Mg<sub>sw</sub> record reveal a long-term decline in net dolostone burial (NDB) over the past 2 billion years, due to the decrease in dolomitization in the oceans and the increase in dolostone weathering on the continents. This underlines a previously underappreciated connection between the weathering-burial cycle of dolostone and the Earth's climate on geologic timescales."],"journal":["Science advances"],"pagination":["eadj5474"],"full_dataset_link":["https://www.ebi.ac.uk/biostudies/studies/S-EPMC10906924"],"repository":["biostudies-literature"],"pubmed_title":["The evolution of Earth's surficial Mg cycle over the past 2 billion years."],"pmcid":["PMC10906924"],"pubmed_authors":["Zhang F","Lowenstein TK","Xia Z","Weldeghebriel MF","Hu Z","Chen J","Bialik O","Fan Q","Xu H","Li W","Li S","Fan J","Ji Z","Shen S","Wang X","Chen T","An S"],"additional_accession":[]},"is_claimable":false,"name":"The evolution of Earth's surficial Mg cycle over the past 2 billion years.","description":"The surficial cycling of Mg is coupled with the global carbon cycle, a predominant control of Earth's climate. However, how Earth's surficial Mg cycle evolved with time has been elusive. Magnesium isotope signatures of seawater (δ<sup>26</sup>Mg<sub>sw</sub>) track the surficial Mg cycle, which could provide crucial information on the carbon cycle in Earth's history. Here, we present a reconstruction of δ<sup>26</sup>Mg<sub>sw</sub> evolution over the past 2 billion years using marine halite fluid inclusions and sedimentary dolostones. The data show that δ<sup>26</sup>Mg<sub>sw</sub> decreased, with fluctuations, by about 1.4‰ from the Paleoproterozoic to the present time. Mass balance calculations based on this δ<sup>26</sup>Mg<sub>sw</sub> record reveal a long-term decline in net dolostone burial (NDB) over the past 2 billion years, due to the decrease in dolomitization in the oceans and the increase in dolostone weathering on the continents. This underlines a previously underappreciated connection between the weathering-burial cycle of dolostone and the Earth's climate on geologic timescales.","dates":{"release":"2024-01-01T00:00:00Z","publication":"2024 Mar","modification":"2025-04-18T14:16:10.784Z","creation":"2025-04-04T20:41:02.656Z"},"accession":"S-EPMC10906924","cross_references":{"pubmed":["38427740"],"doi":["10.1126/sciadv.adj5474"]}}