芒果视频下载

雙(shuang)河洞(dong)(dong)(dong)，國家地質公(gong)園，2019年最(zui)新探(tan)測(ce)長(chang)(chang)度為257.4公(gong)里，成亞洲第(di)一(yi)、世(shi)(shi)界(jie)第(di)五(wu)長(chang)(chang)洞(dong)(dong)(dong)。雙(shuang)河洞(dong)(dong)(dong)國家地質公(gong)園，位于貴州省遵義市綏陽縣溫(wen)泉鎮(zhen)，是中(zhong)國最(zui)大的溶洞(dong)(dong)(dong)群，也是“世(shi)(shi)界(jie)最(zui)長(chang)(chang)的白云巖洞(dong)(dong)(dong)穴(xue)”、“世(shi)(shi)界(jie)最(zui)大的天青石洞(dong)(dong)(dong)穴(xue)”。

雙河洞(dong)(dong)(dong)(dong)(dong)結構復(fu)雜，水洞(dong)(dong)(dong)(dong)(dong)、旱洞(dong)(dong)(dong)(dong)(dong)并存，深度超(chao)過550米，由上中下四層(ceng)8條主洞(dong)(dong)(dong)(dong)(dong)，200多條支洞(dong)(dong)(dong)(dong)(dong)，5條地(di)下河，34個洞(dong)(dong)(dong)(dong)(dong)口(kou)組成，可(ke)謂洞(dong)(dong)(dong)(dong)(dong)挨洞(dong)(dong)(dong)(dong)(dong)、洞(dong)(dong)(dong)(dong)(dong)連洞(dong)(dong)(dong)(dong)(dong)、洞(dong)(dong)(dong)(dong)(dong)上有洞(dong)(dong)(dong)(dong)(dong)、洞(dong)(dong)(dong)(dong)(dong)下有洞(dong)(dong)(dong)(dong)(dong)、洞(dong)(dong)(dong)(dong)(dong)中套(tao)洞(dong)(dong)(dong)(dong)(dong)，被譽為“喀斯(si)特天然(ran)洞(dong)(dong)(dong)(dong)(dong)穴博物館(guan)”。

自1988年(nian)以來，雙河(he)(he)洞吸引了海外探(tan)(tan)險(xian)家(jia)持續探(tan)(tan)測31年(nian)之(zhi)久。截(jie)至(zhi)2017年(nian)4月，完成探(tan)(tan)測長度達200.427公里，是世界排名第十的(de)長洞。雙河(he)(he)洞也是目前(qian)世界最長的(de)白云巖和世界最大的(de)天(tian)青石(shi)洞穴。