Limestone
Carbonic acid is what forms when carbon dioxide dissolves in water. It is a weak acid but will over time, dissolve many rocks, especially carbonates such as limestone. To see what a very weak solution can do over millions of years one only has to visit Carlsbad Caverns or other karst caves found throughout the world.
There are a variety of places throughout the world of course but New Orleans and area are covered in them. Answer: In areas of karst topography, where limestone has been eroded by the acididity and flow of rainwater.
A spring may be the result of karst topography where surface water has infiltrated the Earth's surface (recharge area), becoming part of the area groundwater. The groundwater then travels though a network of cracks and fissures - openings ranging from intergranular spaces to large caves. The water eventually emerges from below the surface, in the form of a spring. The forcing of the spring to the surface can be the result of a confined aquifer in which the recharge area of the spring water table rests at a higher elevation than that of the outlet. Spring water forced to the surface by elevated sources are artesian wells. This is possible even if the outlet is in the form of a 300-foot deep cave. In this case the cave is used like a hose by the higher elevated recharge area of groundwater to exit through the lower elevation opening. Nonartesian springs may simply flow from a higher elevation through the earth to a lower elevation and exit in the form of a spring, using the ground like a drainage pipe. Still other springs are the result of pressure from an underground source in the earth, in the form of volcanic activity. The result can be water at elevated temperature as a hot spring. The action of the groundwater continually dissolves permeable bedrock such as limestone and dolmite creating vast cave systems
limestone
Karst topography is usually created by dissolved limestone. Therefore, limestone makes up Karst topography.
carbonic acid
No, this is not one of the active ingredients in the formation of Karst topography.
Limestone is usually associated with karst topography.
Limestone is usually associated with karst topography.
Limestone is usually associated with karst topography.
It is called a karst topography.
Karst topography is formed by chemical weathering, and affects the underlying carbonate rock (limestone or dolomite). This occurs under specific drainage conditions. Slightly acidic water (carbonic acid in solution) is the active agent.
The physical weathering and chemical weathering process creates Karst topography and landscapes. Caves and Caverns are common of Karst topography.
Sinkholes are common in areas of karst topography
In places that are mostly humid where Karst topography can usually be found. Karst topography can be best described as landscapes that have underground systems like caves.