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鄂霍次克海东南部OS03-1岩心重矿物分布特征及物质来源

王昆山 石学法 吴永华 邹建军 姜晓黎

王昆山, 石学法, 吴永华, 邹建军, 姜晓黎. 鄂霍次克海东南部OS03-1岩心重矿物分布特征及物质来源[J]. 海洋学报, 2014, 36(5): 177-185. doi: 10.3969/j.issn.0253-4193.2014.05.020
引用本文: 王昆山, 石学法, 吴永华, 邹建军, 姜晓黎. 鄂霍次克海东南部OS03-1岩心重矿物分布特征及物质来源[J]. 海洋学报, 2014, 36(5): 177-185. doi: 10.3969/j.issn.0253-4193.2014.05.020
Wang Kunshan, Shi Xuefa, Wu Yonghua, Zou Jianjun, Jiang Xiaoli. Characteristics and provenance implications of heavy mineral in core OS03-1 from the east-southern Okhotsk Sea[J]. Haiyang Xuebao, 2014, 36(5): 177-185. doi: 10.3969/j.issn.0253-4193.2014.05.020
Citation: Wang Kunshan, Shi Xuefa, Wu Yonghua, Zou Jianjun, Jiang Xiaoli. Characteristics and provenance implications of heavy mineral in core OS03-1 from the east-southern Okhotsk Sea[J]. Haiyang Xuebao, 2014, 36(5): 177-185. doi: 10.3969/j.issn.0253-4193.2014.05.020

鄂霍次克海东南部OS03-1岩心重矿物分布特征及物质来源

doi: 10.3969/j.issn.0253-4193.2014.05.020
基金项目: 国家自然科学基金项目(40431002,40706030,40906035);国家海洋局第一海洋研究所基本科研业务费项目(2007T09)。

Characteristics and provenance implications of heavy mineral in core OS03-1 from the east-southern Okhotsk Sea

  • 摘要: 对鄂霍次克海东南部科学院隆起区OS03-1岩心碎屑重矿物及火山灰层进行了详细分析。岩心重矿物以紫苏辉石、绿帘石和普通角闪石为主,特征矿物为钛磁铁矿和普通辉石,矿物特征表明本岩心的物质主要来源于冰筏搬运(陆源)和火山喷发。陆源物质大部分来源于鄂霍次克海西部和北部地区,少量来自堪察加半岛冰川携带沉积物;火山物质则来源于堪察加半岛和千岛群岛的火山喷发产物。在岩心中识别出3个火山灰层,各种证据表明火山灰层1与已知的K2火山灰层相同,形成年代为26 ka BP;火山灰层3具有明显火山物质与陆源物质混合特征,而火山灰层2则只能通过碎屑矿物的含量特征来判定,外在颜色不明显,已经明显的被陆源物质所稀释。研究表明,碎屑矿物组分参数可以有效地指示物质来源,也是识别火山灰层存在(特别是被陆源物质稀释)的可靠指标。
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出版历程
  • 收稿日期:  2013-05-04
  • 修回日期:  2014-01-04

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