An origin of the along-arc compositional variation in the Izu-Bonin arc system

• 作 者: Kathryn Durkin Paterno R.Casti
• 机 构: ScrippsInstitutionofOceanography,Lamont-DohertyEarthObservatory,JapanAgencyforMarine-EarthScienceand
• 出 处: 地学前缘:英文版
• 发表日期: 2020年5期
• 关键词: IZU-BONIN AOC Pb-isotopes Indian-type Zone-refining
• 基金项目: funded by the United States National Science Foundation grants(NSF-1333698)to P.Castillo,(NSF-1333235)to S.Straub

The Izu-Bonin arc system is sediment-poor(~400 m thick with no accretionary prism)and,therefore,the influence of the altered oceanic crust(AOC)is most likely the source of the documented along-arc lava compositional variations,especially in Pb isotopes.Iz