摘要
广东大峡谷是广东著名的旅游风景区,是省内罕有的地质景观。本文通过野外地质调查和室内综合研究认为大峡谷的形成受中泥盆世沉积环境、燕山期构造-岩浆事件以及新构造时期地壳抬升所制约。峡谷地貌是以石英砂岩系为物质基础,以平缓地层与垂直节理为构造基础,在地壳抬升背景下以流水侵蚀和重力崩塌为营力塑造而成。
As a famous tourist scenic area in Guangdong province, the Guangdong Grand Valley (GGV) is rare in geological Landscape resources of Guangdong province. Based on field geological investigation and comprehensive study, the evolution of GGV is restricted by sedimentary environment in middle Devonian, Yanshanian tectono-magmatic events and crust uplift in neotectonic movement stage. GGV was formed by fluvial erosion and gravitational collapse, which built on quartz sandstone formation as material foundation and that placid stratum and vertical joints as tectonic foundation.
基金
中国地质调查局“广东大布公社等四幅区域地质矿产调查”项目(项目编号:12120114024301)。
