{"database":"biostudies-literature","file_versions":[],"scores":null,"additional":{"omics_type":["Unknown"],"volume":["8(12)"],"submitter":["Zhao SY"],"pubmed_abstract":["Arc volcanics are more oxidized than mid-ocean ridge basalts (MORB), but it is debated whether this is a mantle feature or a result of magmatic evolution. Copper, a sulfur-loving element, has been used to trace the behavior of redox-sensitive sulfur during mantle melting and infer similar redox states of sub-arc and sub-ridge mantle. Previous studies, however, neglected elevated sulfur contents in the sub-arc mantle, leading to underestimation of oxygen fugacities, and did not recognize systematic Cu variations in arc volcanics. Here, we show that the Cu/Zr ratio is a sensitive indicator that responds to sulfur content, oxygen fugacity, and extent of melting of the mantle. Because of higher mantle S contents, Cu systematics of arc magmas require one log unit higher oxygen fugacities of sub"],"journal":["Science advances"],"pagination":["eabk0718"],"full_dataset_link":["https://www.ebi.ac.uk/biostudies/studies/S-EPMC8942352"],"repository":["biostudies-literature"],"pubmed_title":["Oxidized primary arc magmas: Constraints from Cu/Zr systematics in global arc volcanics."],"pmcid":["PMC8942352"],"pubmed_authors":["Zhao TP","Langmuir CH","Zhao SY","Yang AY"],"additional_accession":[]},"is_claimable":false,"name":"Oxidized primary arc magmas: Constraints from Cu/Zr systematics in global arc volcanics.","description":"Arc volcanics are more oxidized than mid-ocean ridge basalts (MORB), but it is debated whether this is a mantle feature or a result of magmatic evolution. Copper, a sulfur-loving element, has been used to trace the behavior of redox-sensitive sulfur during mantle melting and infer similar redox states of sub-arc and sub-ridge mantle. Previous studies, however, neglected elevated sulfur contents in the sub-arc mantle, leading to underestimation of oxygen fugacities, and did not recognize systematic Cu variations in arc volcanics. Here, we show that the Cu/Zr ratio is a sensitive indicator that responds to sulfur content, oxygen fugacity, and extent of melting of the mantle. Because of higher mantle S contents, Cu systematics of arc magmas require one log unit higher oxygen fugacities of sub","dates":{"release":"2022-01-01T00:00:00Z","publication":"2022 Mar","modification":"2025-04-04T19:10:29.7Z","creation":"2025-04-04T19:10:29.7Z"},"accession":"S-EPMC8942352","cross_references":{"pubmed":["35319995"],"doi":["10.1126/sciadv.abk0718"]}}