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胶南县大村公社藏马山西流域面积10.63平方公里,山最高海拔432.6米。该流域沿白马河、藏马山之间,形成一个南北长10.05公里、东西宽5公里的狭长峁原地带。高山中部属白垩系燕山晚期侵入的火成岩,两侧为花岗岩,南部为部分闪长岩,分布在150米等高线以上,坡度70左右。山根部分以亚粘土为主,深处夹有厚度不等的卵石层,分布在50米等高线以上,坡约50°左右。山根至河岸为第四纪复盖层坡积,主要为黄色亚砂土,分布在40米以下
The Village of Jiaonan Dacun Horseshoe Shanxi basin covers an area of 10.63 square kilometers, the highest elevation of 432.6 meters. The basin along the White Horse River, Tibetan Masan, between the formation of a north-south length of 10.05 km, 5 km wide east-west narrow strip of the original area. The middle part of Alpine is a type of igneous rock intruded late Cretaceous Yanshanian, with granite on both sides and part of diorite in the south distributed above the contour of 150 meters with a slope of about 70. Yamane part of the main sub-clay, the depths of the folder with varying thickness of pebble layer, located in 50 meters above the contour line, about 50 ° slope. From the root to the bank of the Quaternary overburden slope plot, mainly yellow sub-sand, distributed in 40 meters below