Caves are more likely to form in areas with limestone or other soluble rock that is easily dissolved by water. The presence of underground waterways and geological processes like erosion also contribute to cave formation. Additionally, factors like climate, topography, and time play a role in determining where caves are more likely to form.
You would likely find sedimentary rock in caves, as it is common for caves to form in limestone, dolomite, or sandstone due to the processes of erosion and underground water flow. Igneous and metamorphic rocks are less common in caves, but can also be present in certain geological settings.
Right - rain absorns atmospheric CO2 to become slightly acid. When this water percolates through discontinuities in limestone, the rock is dissolved by this carbonic acid (an example of chemical weathering), and over time the conduits this creates enlarge and coalesce to form caves.
The creature you are referring to is most likely the "troll." In Scandinavian folklore, trolls are often depicted as ugly, large beings that live in remote areas like forests, mountains, or caves. They are known for their strength and often portrayed as hostile towards humans.
Feldspar is a constituent of igneous rocks, primarily granite, and does not form rock masses alone. Also, although it does weather, very slowly, neither it nor the igneous rocks generally have the solubility of limestone. Caves do form in granite etc by subaeriel, sea or riverine erosion, but they are generally small, shallow rock-shelters, not conduits as in limestone caves.
Most caves are made out of limestone, which is a sedimentary rock composed of calcium carbonate. This rock is easily dissolved by acidic water, leading to the formation of caves through a process called chemical weathering and erosion. Other types of caves can also form in volcanic or igneous rock, such as lava tubes.
Within caves in carbonate rocks.
Ogres are mythical creatures that are typically depicted as living in remote, secluded areas such as caves, forests, or mountains. In folklore and fairy tales, ogres are often portrayed as being solitary beings who prefer to live away from human settlements.
Caves usually form in areas with limestone or other soluble rocks that can be dissolved by water over long periods of time. Common locations for cave formation include regions with karst topography, such as in limestone landscapes or near volcanic activity, where lava tubes can create caves.
Caves typically form in rocks that are soluble in water, such as limestone and gypsum. These rocks can be dissolved by carbonic acid in rainwater, creating cavities over time. So, caves are more likely to form in rocks that are easily eroded by water.
Ocean trenches form at areas of subduction.
how do caves form
Pahoehoe lava, which has a smooth, rope-like texture and forms by flowing rapidly and cooling quickly, is more likely to form lava tube caves due to its ability to retain heat and flow for long distances before solidifying. Aa lava, with its jagged and blocky texture, tends to move more sluggishly and is less likely to create extensive tube structures.
Sea caves form by ocean waves pounding at the base of seashore cliffs.
in caves
in caves
Because limestone uplands with appropriate internal geology and surface drainage in areas of long-term, suitable climatic conditions are so widespread. Not all limestone areas support caves though.
The main types of caves are solution caves, lava caves, sea caves, glacier caves, and talus caves. Solution caves form from the dissolution of soluble rocks like limestone; lava caves are created by flowing lava; sea caves are carved by the action of waves on coastal cliffs; glacier caves form within glaciers due to melting and refreezing processes; and talus caves are formed by fallen rocks creating cave-like structures.