Perhaps you search for sink holes.
its called 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.
turn up dats it
carbonic acid
because 55 percent of Kentucky sits atop carbonate rocks prone to developing it.
Sinkholes are circular to elliptical closed depressions commonly found in karst areas. They form when underground caves collapse due to erosion of soluble rocks such as limestone or dolomite. Sinkholes can vary in size and depth, posing potential hazards to infrastructure and human safety.
The three features that characterize Karst topography are sinkholes (depressions in the ground), caves and underground drainage systems (such as caverns and disappearing streams), and dolines (closed depressions similar to sinkholes but shallower).
An area with many sinkholes is called a sinkhole-prone region. These regions often have underlying soluble rock such as limestone or gypsum that can dissolve over time, leading to the formation of sinkholes. It is important to be cautious in such areas to prevent accidents or property damage.
Swallets are shallow depressions or sinkholes in the ground that can collect and temporary store rainfall or surface runoff. They are typically found in areas with limestone bedrock and are important features in karst landscapes.
In karst areas, this is called a sinkhole.
Above limestone deposits
caverns
sinkholes
A circular to elliptical closed depression in karst areas, often referred to as a "sinkhole" or "doline," is a geologic feature formed by the dissolution of soluble bedrock, such as limestone, due to acidic water. This process creates a depression in the landscape as the ground collapses into an underground cavity. These depressions can vary in size and depth and are characteristic of karst topography, which is marked by features like caves, springs, and underground rivers. They can pose hazards to infrastructure and ecosystems, as well as provide unique habitats.
Common features in karst topography include sinkholes, caves, underground rivers, and disappearing streams. Karst landscapes are characterized by the dissolution of soluble rocks such as limestone, resulting in unique surface and subsurface landforms.
Common landforms in karst topography include sinkholes, which are depressions formed by the collapse of surface layers into underground voids; caves, created by the dissolution of soluble rocks like limestone; and limestone pillars or towers, which are steep rock formations that remain after surrounding material has been eroded. Additionally, features like disappearing streams and underground rivers are typical, reflecting the complex drainage systems in these landscapes. Overall, karst topography is characterized by its unique geological formations resulting from chemical weathering.
Limestone