遂川-热水走滑断裂带特征及其对丰州盆地铀成矿的控制作用

SUICHUAN-RESHUI STRIKE-SLIP FAULT ZONE AND ITS CONTROL ON URANIUM MINERALIZATION IN FENGZHOU BASIN

本文以322矿田为例，对穿越矿田的遂川-热水走滑断裂带的特征及其对铀成矿的控制予以讨论。论述了矿田内铀矿床的形成、分布与遂川-热水走滑断裂带的关系，揭示了丰州拉分盆地的形成与铀成矿的内在联系，认为遂川-热水走滑断裂系是322矿田的主控条件，走滑断裂的脉动性控制了铀成矿的多期多阶段性。最后简要地分析了322矿田的找矿前景和走滑断裂的找矿意义。

This paper,taking the uranium ore field No. 322 as an example,discusses structural features of the Suichuan-Reshui strike-slip fault zone straddling the ore field and its control on uranium mineralization such as the formation and the distribution of uranium deposits and their relations to the fault zone. The inherent relationship between uranium mineralization and the Fengzhou pullapart basin has been described as well. The Suichuan-Reshui strike-slip fault zone is considered to be a main factor controlling the ore field No. 322,and the multiple stages and phases of uranium mineralization are related to the pulse activities of the strike-slip fault zone. Finally,the metallogenic potencial of the ore field No. 322 and prospecting significance of the strike-slip fault for uranium exploration have been briefly discussed.