ELEMENTARY DISCUSSION ON THE TECTONIC BACKGROUND OF DEPOSIT-CONCENTRATED QIANLISHAN-QITIANLING AREA IN HUNAN
ELEMENTARY DISCUSSION ON THE TECTONIC BACKGROUND OF DEPOSIT-CONCENTRATED QIANLISHAN-QITIANLING AREA IN HUNAN
复制标题
DOI：
--
复制
发表时间：
2005
期刊：
影响因子：
--
通讯作者：
Che Qinjian;Liu Jindong;Wei Shaoliu
中科院分区：
文献类型：
--
作者：
Che Qinjian;Liu Jindong;Wei Shaoliu
千里山骑田岭是南岭成矿带中段重要的矿集区。许多学者对单个矿床或矿区的地质产状进行了广泛的讨论，但这些工作并不能用来解释整个矿集区的地质背景。通过地层分析、构造力学体系分析以及岩浆岩分布、地球物理地球化学特征分析，认为炎陵-南山构造岩浆岩带两侧下泥盆统地质体具有明显的差异性。通过对两块陆块假设下的平面变形和应力作用分析，认为炎陵-南山NE向构造岩浆岩带可作为两块陆块的拼接线，郴州-邵阳NW向构造岩浆岩带为两块陆块拼接时的应力集中带。这可能是千里山-骑田岭矿集区形成和两条成矿带在此交汇的最根本原因。
Qianlishan-Qitianling is an important deposit-concentrated area in the middle section of Nanling metallogenic belt. Many scholars made extensive discussions on the geological occurrences of individual deposits or mine fields, but the works can not be used to explain the geological background for the occurrence of the whole deposit-concentrated area. Through stratigraphic analysis, tectonic mechanical system analysis as well as analysis on magmatite distribution, geophysical geochemical traits, a suggestion was put forward that the geologic bodies of Lower Devonian on both sides of Yanling-Nanshan tectonic magmatite belt were distinct from each other. Through analysis on plane deformation and stress action based on the assumption of two land-blocks, the authors think that the magmatite belt of Yanling-Nanshan NE structure can be the line by which the two terranes are put together, and the magmatite belt of Chenzhou-Shaoyang NW orientation structure is stress-concentrated belt when the masses are joined together. This could be the most essential cause to account for the fact that Qianlishan-Qitianling deposit-concentrated area was formed and the two metallogenetic belts were intersected here.