caves
If limestone undergoes contact metamorphism, it will typically turn into marble. Marble forms from the recrystallization of limestone under high temperature and pressure conditions.
Carbonic acid can dissolve limestone, a common rock type in many regions, which then forms caves through a process of chemical weathering. When rainwater, containing carbon dioxide from the atmosphere, seeps through the ground and comes into contact with limestone rocks, it forms carbonic acid. This carbonic acid slowly dissolves the limestone over time, creating cave systems underground.
The sedimentary rock that forms calcium carbonate and fizzes in acid is likely limestone. Limestone is a common sedimentary rock primarily composed of calcite, a form of calcium carbonate. When exposed to acids such as vinegar or hydrochloric acid, limestone will fizz or effervesce due to the release of carbon dioxide gas.
Carbon dioxide dissolved in rain water forms a weak acid which slowly weathers limestone, a carbonate which reacts with acids.
limestone forms from skeletons and shells
Karst topography forms when underground layers of limestone are dissolved by groundwater. This process creates unique landforms such as sinkholes, caves, and underground drainage systems. The dissolution of limestone occurs due to its chemical composition and the acidic nature of groundwater.
it the limestone is acidic
When limestone on the surface is dissolved by groundwater, it forms features such as caves, sinkholes, and disappearing streams, through a process known as karst topography. This occurs because limestone is a rock that can easily be dissolved by the slightly acidic nature of groundwater, creating these unique geological formations over time.
Marble is a nonfoliated rock that forms only in contact metamorphism. It is predominantly composed of the mineral calcite, which is recrystallized from limestone under high temperature and pressure near igneous intrusions.
Limestone or dolostone forms marble. This encompasses all types, from Chalk to Oolitic Limestone.
limestone
Limestone can metamorphose into marble, a regional metamorphic rock, or into skarn, a contact metamorphic rock.