Geochronology and Geochemistry of Granite Pluton in the North of Qiaowan, Beishan Mountain, Gansu Province, China, and Its Geological Significance
FENG Jicheng,ZHANG Wen,WU Tairan,ZHENG Rongguo,LUO Hongling,HE Yuankai
Acta Scientiarum Naturalium Universitatis Pekinensis . 2012, (1): 61 -70 .