Neotectonics on the Arabian Sea coasts
Neotectonics on the Arabian Sea coasts
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阿拉伯海沿岸的新构造运动
DOI：
10.1144/gsl.sp.2002.195.01.06
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发表时间：
2002
期刊：
影响因子：
--
通讯作者：
C. Vita
中科院分区：
文献类型：
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作者：
C. Vita
阿拉伯海沿岸的全新世记录提供了有关印度、阿拉伯和欧亚板块之间相互作用所产生的变形的性质和速率的信息。全新世海洋阶地表明，南部马克兰已受到罕见的，但强烈的同震隆起（≤2米），其特征是其他俯冲环境，它们表明向陆旋转的叠瓦状断层之间的缩短分布。阿拉伯半岛东南海岸缺乏明显的全新世变形，这与其平行于转换的位置是一致的，尽管有证据表明东北部霍尔木兹海峡的收敛导致了大规模的屈曲。印度西南海岸局部隆起的地貌和验潮证据可能也代表了喜马拉雅碰撞的挤压屈曲。测深和大地测量数据可以帮助连接这些序列，从而提高其量化板块流变学和动力学的价值，特别是通过将板块边缘位移的变化与主要的海底走滑结构联系起来，并最终确认陆地上的短暂和持续压缩屈曲。
Abstract The Holocene record on the coasts of the Arabian Sea provides information on the nature and rate of deformation generated by the interaction between the Indian, Arabian and Eurasian Plates. Holocene marine terraces show that the southern Makran has been subject to the infrequent but vigorous coseismic uplift (≤2 m) that characterizes other subduction settings and they indicate landward rotation of the imbricate faults among which shortening is distributed. The lack of significant Holocene deformation on the SE coast of the Arabian peninsula is consistent with its position parallel to a transform, although there is evidence for large-scale buckling driven by convergence at the Strait of Hormuz in the NE. Geomorphological and tide-gauge evidence for localized uplift on the southwestern coast of India may represent compressional buckling here too in response to Himalayan collision. Bathymetric and geodetic data can help to bridge these sequences and thus enhance their value for quantifying plate rheology and dynamics, notably by linking variations in plate-margin displacement with major sea-floor strike-slip structures and by eventually confirming transitory as well as sustained compressive buckling on land.