Moaning Cavern is a solution, or karst, cave formed as all such caves are, by dissolution of calcium carbonate by slightly acidic ground-water. In this case the rock is marble, metamorphosed limestone, but still the same chemical.
Try just putting its name in Wikipedia as I did to answer this - it also tells you the origin of its name!
It is a show-cave now, offering as many show-caves now do, "adventure caving" as well as the straightforward walking tours.
It's a normal karst cave, but I think (from memory) in marble rather than unaltered limestone.
There are several unique attractions in the Calaveras County. Some of them include the Mercer Caverns, the Moaning Caverns, New Melones Lake and Sierra Nevada Logging Museum.
water
caverns, sinkholes, etc.
The Florida Caverns are limestone caves and were formed by rain water dissolving the limestone.
The two features formed by underground weathering are caves and caverns. Caves are natural underground chambers typically formed in limestone, while caverns are larger caves that often have unique formations such as stalactites and stalagmites.
Carlsbad Caverns is primarily formed by dissolution, a type of chemical weathering, of the limestone bedrock by acidic groundwater. This process creates the spectacular caves and caverns found in the area.
Caverns are typically formed through a process known as karstification, where groundwater dissolves soluble rocks like limestone and carbonate rocks over time. This dissolution, along with other factors such as erosion and tectonic forces, can create underground cavities and passageways that eventually turn into caverns.
Sea caves (formed in cliffs by wave action)?
the oldest layer is made of fgh a type of cavemen pets formed from sub. teachers beating the kids pets
calcium carbonate
No, most caverns form below the water table. Caverns are typically formed by the dissolution of underground limestone or other soluble rocks by water, and this process usually occurs below the water table where the rocks are saturated with water.