摘要
新汨(新宁—汨罗)大断裂”,其南西段确实存在,与印支褶皱带越城岭隆起有关,称资新(资源—新宁)大断裂;北东段也存在,斜切雪峰隆起带,与中新生代断陷洞庭盆地有关,称宁汨(宁乡—汨罗)大断裂。两者均为压剪性复合正断裂。而中间段只是印支褶断带祁阳弧的一部分,即邵娄(邵阳—娄底)弧形断褶带,为浅层滑脱断裂构造。三者各具有截然不同的地质特征和各自的发展演化历史,没有成因上的联系。
The 'Xinning-Miluo fault zone', its southwestern part do exist, which is related to the Indo-Sinian fold belt--Yuechengling upheaval, and is called Ziyuan-Xinning fault zone; its northeastern Part also exists, which slantly cuts through Xuefeng upwarped region, and is related to the Meso-Neozoic fault depression--Dongting basin, and is called Ningxiang--Miluo fault zone; Both are compresso-shear normal faults.But its middle part is just a section of the Indo-Sinian Qiyang arc-shaped fold-fault structural system, i. e., Shaoyang--Loudi arc-shaped fold--fault zone, which is a shallow nappe structure. The above three parts have heir own distinct geologic features and evolution history of development, and have no genetic connection among them.
出处
《湖南地质》
1990年第3期75-82,共8页
Hunan Geology
关键词
断裂
褶皱带
地震
Xinning-Miluo fault zone
Ziyuan-Xianing fault zone
Ningxiang-Miluo fault zone
Shaoyang-Loudi arc-shaped rold-fault zone
Compresso-sheae normal fault
Earthquake
