Eocene initiation of Ross Sea dextral faulting and implications for East Antarctic neotectonics
Eocene initiation of Ross Sea dextral faulting and implications for East Antarctic neotectonics
复制标题
始新世罗斯海右旋断层的起始及其对东南极新构造运动的影响
DOI：
10.1144/0016-764905-005
复制
发表时间：
2006
影响因子：
2.7
通讯作者：
F. Salvini
中科院分区：
文献类型：
--
作者：
F. Rossetti;F. Storti;M. Busetti;F. Lisker;G. Di Vincenzo;A. Läufer;S. Rocchi;F. Salvini
东南极板块的罗斯海地区为新生代板内构造活动提供了证据。这种板内构造作用的原因、时间和运动学仍未解决。通过综合和讨论新生代构造活动的不同信号(运动学和时间上的)，认为板内右行剪切作用是控制罗斯海地区中始新世(约40-50 Ma)以来构造格局的主要构造体制。我们推测，这一构造体系随时间的传播和持续构成了解释罗斯海地区过去和现在构造作用的一个可行的地震孕育框架。
The Ross Sea region of the East Antarctic plate provides evidence for intraplate tectonic activity in Cenozoic times. Still unresolved are the cause, timing and kinematics of this intraplate tectonism. By integrating and discussing the different (kinematic and temporal) signals of Cenozoic tectonism, intraplate dextral shearing is recognized as the main tectonic regime controlling the structural architecture of the Ross Sea region from the Mid-Eocene (c. 40–50 Ma) onward. We speculate that propagation and persistence of this tectonic regime through time constitutes a feasible seismogenetic framework to explain past and current tectonism in the Ross Sea region.