自然(ran)溶(rong)洞(dong)(dong)(dong)有(you)(you)各種天(tian)然(ran)的(de)(de)奇異(yi)景(jing)觀，有(you)(you)些天(tian)然(ran)溶(rong)洞(dong)(dong)(dong)美不勝收(shou)。溶(rong)洞(dong)(dong)(dong)是(shi)可溶(rong)性(xing)巖石(shi)中因喀斯特作用所形(xing)成(cheng)的(de)(de)地下(xia)空間(jian)，溶(rong)洞(dong)(dong)(dong)的(de)(de)形(xing)成(cheng)是(shi)石(shi)灰(hui)巖地區地下(xia)水長期溶(rong)蝕的(de)(de)結果。你知道哪些溶(rong)洞(dong)(dong)(dong)是(shi)自然(ran)形(xing)成(cheng)的(de)(de)嗎？世界自然(ran)形(xing)成(cheng)的(de)(de)溶(rong)洞(dong)(dong)(dong)有(you)(you)哪些呢？本文整(zheng)理(li)了世界十(shi)大(da)自然(ran)形(xing)成(cheng)溶(rong)洞(dong)(dong)(dong)，包(bao)括猛(meng)犸洞(dong)(dong)(dong)、韓松洞(dong)(dong)(dong)、斯科契揚溶(rong)洞(dong)(dong)(dong)、歐若(ruo)恩多加(jia)洞(dong)(dong)(dong)穴、越南蝕洞(dong)(dong)(dong)、芬格洞(dong)(dong)(dong)穴等，一起(qi)來看看吧。