【广西乐业发现新天坑最大深度192米】自然资源部中国地质调查局岩溶地质研究所组织科考探险队在广西乐业县探险结束后，5月7日确认发现1个标准天坑。至此，“世界天坑之都”乐业县的天坑数量增至30个。经测量，坑口直径东西长306米、南北宽150米，最大深度192米，容积超过500万立方米。A cave exploration team has discovered a giant karst sinkhole in south China's Guangxi Zhuang Autonomous Region, bringing the number of such sinkholes in the county to 30. The sinkhole measures 306 meters in length, 150 meters in width and 192 meters in depth, with its volume exceeding 5 million cubic meters, and can be categorized as a large sinkhole. The bottom of the sinkhole has a well-preserved primitive forest. http://t.cn/A6XtmgYY