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在地质历史上,每次构造运动产生地壳隆起上升过程中,都有岩溶作用发生,在地壳演化到地洼阶段,由于构造运动频繁而强烈,地貌反差大,加之气候适宜,植物繁茂,岩溶作用发育,岩溶堆积物广泛分布。过去由于对岩溶研究重视不够,一些古岩溶堆积岩被认为是其它地质作用产生的,如构造角砾岩、同生砾屑灰(云)岩等,因而妨碍某些地质问题的研究。另外很多有用资源与岩溶有关,如湘南铅—锌、铜、铀常赋存于燕山岩溶期充填物中。故进行古岩溶研究,就更为重要。笔者以湘南为例,依据实际资料,探讨本区中生代和第三纪岩溶作用
In geologic history, karstification occurred during the tectonic uplifting and crustal uplift of each tectonic movement. During the evolution of the crust to the diwa stage, the tectonic movements are frequent and intense with large landform contrasts. In addition, the climate is suitable and the plants are lush and karstified Development, karst deposits are widely distributed. In the past, due to inadequate attention paid to karst research, some paleokarst accretions were considered to be produced by other geological processes, such as the construction of breccia, symbiotic gravel (cloud) rock, etc., which hindered the study of some geological problems. In addition, many useful resources are related to karstification. For example, the lead, zinc, copper and uranium in southern Hunan are often deposited in the filling of the Yanshan karst. Therefore, ancient karst research is even more important. Taking Shonan as an example, the author discusses the Mesozoic and Tertiary karstification in this area based on actual data