华蓥山矿区位于四川盆地东部 ,行政区划为广安地区、达川市所共辖（图略）。矿区北端有谢家槽石膏矿 ,由于矿层厚度大、延伸远、埋藏浅、矿石品位优、含量丰等特点 ,早在６０年代就闻名全国① 。南端为隐伏矿床 ,１３６队施工的部分钻孔见到石膏矿层。随着地方经济的飞速发展 , Huayingshan mining area is located in the eastern Sichuan Basin, the administrative division of Guang’an area, Dachuan City, the total jurisdiction (Figure omitted). There Xiejiagou gypsum mine at the northern end of the mining area, due to the thickness of the mine, extended, burial shallow, ore grade excellent, rich content characteristics, as early as the 60s known around the country ①. The southern tip is a hidden deposit, part of the 136 team to see the construction of gypsum mining holes. With the rapid development of local economy,