论文部分内容阅读
恩施大峡谷位于清江,峡谷全长108千米,总面积300多平方千米。峡谷之中,有一根“擎天一柱”拔地而起,直冲云霄,当地人都称这根石柱叫“一炷香”。“一炷香”高达150米,直径却只有4米,似“定海神针”屹立于峡谷之中,堪称世界奇观。恩施大峡谷里的岩石是由容易被水溶蚀的坚硬的化学沉积层与相对松软的沙石沉积层交替组成。由于沙石在水的冲刷下首先被侵蚀,岩层之间就会出现裂缝,但这些裂缝并不整齐,在重力的作用下,上面的岩石失去了平衡,就
Enshi Grand Canyon is located in Qingjiang, a total length of 108 km canyon, with a total area of over 300 square kilometers. Among the canyons, there is a “Qingtian a column ” Uprising, straight into the sky, the locals call the pillars called “a fragrant incense ”. “A fragrant incense ” up to 150 meters, but only 4 meters in diameter, like “Dinghai Shen Zhen ” standing in the gorge, called the wonders of the world. Rocks in the Enshi Grand Canyon are composed of alternating layers of hard chemical deposits that are prone to water erosion and relatively soft sand deposits. As sand and gravel were first eroded by the erosion of the water, cracks were formed between the layers, but the cracks were not neat and the rock above the surface was out of balance due to gravity