新疆托理县安齐金成矿带成矿规律及找矿标志

新疆托理县安齐金成矿带是西准噶尔地区最好的金成矿带，带内己发现金矿床、矿点近百处，它们均属于岩浆期后中低温热液矿床.主要赋矿地层为上石炭统包古图组和太勒古拉组，赋矿岩系为火山碎屑岩.华力西中期的中酸性岩与金矿的关系非常密切.北东向的安齐断裂为主干断裂，是主要的导矿构造，控制和限定了带内金矿的分布及产出.北西、近东西和北东向的次级断裂是主要的成矿、容矿构造.东西向构造与北东向主干断裂交汇地段及中酸性侵入体内部、边部和接触带是本区最主要的金矿找矿标志.

METALLOGENIC REGULARITY AND PROSPECTING CRITERIA OF GOLD DEPOSITS IN ANQI GOLD METALLOGENIC BELT IN XINJIANG

The Anqi gold metallogenic belt, located in Toli County, Xinjiang Region, is the best one in western Junggar, where nearly 100 gold deposits(spots) have been discovered. Genetically, they are post-magmatic meso-epithermal deposits, hosted in the volcanic clastic rocks of Upper Carboniferous Baogutu and Tailegula formations. These deposits are intimate with the middle Variscan acid-intermediate intrusive. The NE-trending Anqi fault is the major fault, which serves as main ore fluid passageway and controls the distribution and occurrence of the gold deposits in the belt. The secondary NW-, NE -and E-W-trending faults are main ore-forming and host structures. The junction zone of the NE-trending and E-W-trending faults, as well as the inside, margin and contact zone of the acid-intermediate intrusive, are the most important prospecting criteria for gold deposits.