鄂尔多斯盆地中部白于山附近白垩系地下水径流特征  

GROUNDWATER FLOW OF THE CRETACEOUS SYSTEM NEAR BY BAIYUSHAN MOUNTAIN AT CENTRAL PART OF THE ORDOS BASIN

作　　者：但永平 王佳武 李敏杰 董小恒 郝永红 王平 牛宝琪 王宝庆 

机构地区：[1]陕西省地矿局综合地质大队,渭南714000 [2]渭南市临渭区水政监察大队,渭南714000

出　　处：《陕西地质》2012年第2期62-67,共6页Geology of Shaanxi

摘　　要：鄂尔多斯盆地中部的白于山呈东西向展布,横亘于陕西北部,属黄土低中山。通过水动力场、水化学场和同位素场分析,白于山是无定河与洛河地表分水岭,也是第四系松散层和白垩系环河组地下水分水岭,而不是深层(埋深较大)的白垩系洛河组地下水分水岭。洛河组地下水分水岭在白于山北侧4 km～17 km。由于白垩系洛河组地下水分水岭的北移,为白垩系洛河组地下水的合理开发利用提供了依据。Baiyu Mountain lies in central part of the 0rdos Basin at east-west＂ direction, spanning the north of Shaanxi Province and belonging tO low-medium loess hills. Based on field analysis of hy-drodynamic force, hydrochemistry and isotope, Baiyu Mountain is a watershed in between the Wuding River and the Luohe River onthe surface, and also an underground watershed between the Qua-ternary loosed beds and the Cretaceous Huanhe Formation, which is not an underground watershed of deep buried Cretaceous＇Luohe Formation. The underground watershed of the Luohe Formation is 4 km - 17 km north to Baiyu Mountain, which would be favorable for further development of under- ground water from the Cretaceous Luohe Formation.

关 键 词：白于山 白垩系 水动力场 水化学场 同位素场 

分 类 号：P641[天文地球—地质矿产勘探]