This is a cliff composed of quartz sandstone that is well bedded. 由石英砂巖構成的懸崖，巖石層理發(fā)育。
The China fir grows well at basalt and quartz sandstone, but poor at clay and sand-shale. 其中以玄武巖與石英砂巖發(fā)育的土體上的杉木生長(cháng)最好，依次為長(cháng)石石英砂巖與變余砂巖，而以煤系砂頁(yè)巖和第四紀紅色粘土上的杉木生長(cháng)最差。
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