中国岩浆硫化物矿床新分类与小岩体成矿作用_汤中立.pdf

2006 2 25 1 Feb. , 2006 M INERAL DEPOSITS Vol. 25 No. 1 :0258_7106 (2006) 01_0001_0 X 1 1 1 2 汤中立, 闫海卿, 焦建刚 , 李小虎 ( 1 , 710054; 2 , 730000) ( ) , , : ¹ ; º ; » ; ¼ ( ) , , 3 3 __ , , , _, ; , , , , + : P611. 1 1 : A New classification of magmatic sulfide deposits in China and ore_forming processes of small intrusive bodies 1 1 1 2 TANG ZhongLi , YAN HaiQing , JIAO JianGang and LI XiaoHu ( 1 Changcan University , Xican 710054, Shaanxi, China; 2 Lanzhou University, Lanzhou 730000, Gansu, China) Abstract M any important metallic resources, such as Ni ( Cu, Co) and PGE, exist in magmatic sulfide deposits. Such ore deposits now constitute a hot spot in geological research. The authors have divided the magmatic sulfide deposits in China into four types based on such factors as their tectonic settings, intrusive forms, ore deposit modes and main metallogenic elements. They are: ( 1) small_intrusion deposits in paleo_continent; ( 2) small_in- trusion deposits in continental flood basalt; ( 3) small_intrusion deposits in orogenic belt; and (4) deposits con- nected w ith ophiolites. According to this classification, the authors hold that the main magmatic metallogenic type in China is small_intrusion mineralization. This paper describes characteristics of this type from small intr