腾冲-梁河地区斑岩地质特征及含矿性判别

GEOLOGICAL FEATURES AND METALLOGENESIS DISCRIMINATION OF THE PORPHYRY IN TENGCHONG--LLANGHE AREA

腾冲－梁河地区含矿斑岩主要分布在东部花岗岩带中的构造极复杂地段，斑岩种类复杂，岩体裂隙发育，岩石破碎，岩体自蚀变和围岩蚀变强烈，蚀变种类复杂，特征副矿物和微量元素总含量高，岩体形态为岩株、岩筒、大岩脉，接触面产状陡，围岩为泥盆—二叠系碎屑岩。

AbstractThe metallogenetic porphyry in Tengchong--Lianghe area is mainly distributed in the complicated structural section of the eastem granite zone. The types of porphyry are very complex. Fissures are developed in the rock body and rocks are very fractured. The alterations of wall rock and rock-body itself are intensive and complicated. The content of characteristic accessory mineral and trace element is very high. The forms of rock bodies include stock, pipe, large vein, etc, with steep contact plane. The wall rocks are Devonian--Permian clastic or carbonate rock.