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白云鄂博区位于包头正北145公里。该区主要是中下古生代(可能包括震旦纪)地层。震旦纪以前的地层约分3层:1.石英岩(S_1,S_2);2.具矽质条带的白云质大理岩,有Gymnosolen(苏会),(S_8);3黑色千枚岩、石英岩、变质灰岩等互层(S_3)。此系地层很可
Bayan Obo District is located 145 kilometers north of Baotou. The area is dominated by the Middle-Lower Paleozoic (possibly Sinian) strata. Pre-Sinian strata were divided into three layers: 1. quartzite (S_1, S_2); 2. dolomitic marble with silicotic bands with Gymnosolen (S_8); 3 black phyllite , Quartzite, metamorphic limestone and other layers (S_3). This is very stratigraphic