溶洞(dong)是(shi)石(shi)(shi)灰巖地(di)區(qu)地(di)下水長期溶蝕的結果,由(you)于灰巖層(ceng)各部分含石(shi)(shi)灰質多少不同(tong),被侵蝕的程度(du)不同(tong),也就(jiu)形(xing)成了如今我們看到的千(qian)姿百態的奇(qi)異景觀(guan),這(zhe)種地(di)面稱之為喀斯(si)特地(di)貌。本期小編為您(nin)推薦這(zhe)組溶洞(dong)的圖(tu)片(pian),包括天(tian)然溶洞(dong)的圖(tu)片(pian),石(shi)(shi)鐘乳石(shi)(shi)筍圖(tu)片(pian)和(he)溶洞(dong)景區(qu)圖(tu)片(pian)大全供(gong)您(nin)欣(xin)賞(shang)!