位置:成果数据库 > 期刊 > 期刊详情页
Deep geodynamics of far field intercontinental back-arc extension: Formation of Cenozoic volcanoes in northeastern China
  • ISSN号:1674-4519
  • 期刊名称:《地震学报:英文版》
  • 时间:0
  • 分类:P541[天文地球—构造地质学;天文地球—地质学]
  • 作者机构:[1]Laboratory of Computational Geodynamics, Graduate School of Chinese Academy of Sciences, Beijing 100039,China Laboratory of Computational Geodynamics, Graduate School of Chinese Academy of Sciences, Beijing 100039,China
  • 相关基金:National Natural Science Foundation of China (40234042 and 40174027).
中文摘要:

There are three cases of variation of trench location possible to occur during subduction: trench fixed, trench advancing, and trench retreating. Retreat of trench may lead to back-arc extension. The Pacific plate subducts at low angle beneath the Eurasia plate, tomographic results indicate that the subducted Pacific slab does not penetrate the 670 km discontinuity, instead, it is lying flat above the interface. The flattening occurred about 28 Ma ago. Geodynamic computation suggests: when the frontier of the subducted slab reaches the phase boundary of lower and upper mantle, it may be hindered and turn flat lying above the boundary, facilitates the retreat of trench and back-arc extension. Volcanism in northeastern China is likely a product of such retreat of subduction, far field back-arc extension, and melting due to reduce of pressure while mantle upwelling.

同期刊论文项目
期刊论文 31 会议论文 8 著作 1
同项目期刊论文
期刊信息
  • 《地震学报:英文版》
  • 主管单位:中国科协
  • 主办单位:中国地震学会
  • 主编:陈运泰
  • 地址:北京民族学院南路5号(北京8116信箱)
  • 邮编:100081
  • 邮箱:dzxbqks@126.com
  • 电话:010-68729330
  • 国际标准刊号:ISSN:1674-4519
  • 国内统一刊号:ISSN:11-5695/P
  • 邮发代号:
  • 获奖情况:
  • 1992年获国家地震局首次科技期刊评比国际交流奖,中国科协首届优秀学术期刊评比一等奖,1996年获国家地震局科技期刊评比二等奖
  • 国内外数据库收录:
  • 俄罗斯文摘杂志,荷兰文摘与引文数据库,美国地质文献预评数据库,美国剑桥科学文摘,英国科学文摘数据库
  • 被引量:357