jinis
Thermal Travertine lan Tufa
gandheng tuff, tuff rhyolitic, basaltic tuff, trachyte tuff, tuff andesitic lan ignimbrite.
fitur
stalactites lan stalagmites sing kawangun saka watu iki, lumahan asring mengilap, rock grained banget nggoleki
tansah ditemokake minangka pipo vulkanik liwat lemah ndhuwur Continental jero
monumen misuwur
Colosseum ing Roma, Italia, Sacre coeur in paris, prancis, Trevi Fountain in rome, italy
pulo Paskah ing segitiga Polinesia, pacific segara