That's called a stalagmite. A similar object descending from the roof of a cave = is a stalactite.
stalagmite
Stalagmite.
It is called a stalaGMite. StalaCTites hang from the top. Memory key: the C in stalactite means Ceiling - and G in stalagmite means ground.
Cone shaped deposits that rise from the floor of a cave are called Stalagmites. This is easy to remember as it contains a letter 'G' as does ground. While a Stalactite, which hangs down from a cave ceiling, contains a letter 'C.'
It is called a stalaGMite. StalaCTites hang from the top. Memory key: the C in stalactite means Ceiling - and G in stalagmite means ground.
It is called a stalaGMite. StalaCTites hang from the top. Memory key: the C in stalactite means Ceiling - and G in stalagmite means ground.
The formation in a cave that rises from the floor are called stalagmites
sea floor spreading
When magma rises and carves a tube-shaped structure, it forms a volcanic conduit or lava tube. These can serve as pathways for magma to travel from the magma chamber to the surface during volcanic eruptions.
seamount
The crack in the ocean floor where magma rises is called a mid-ocean ridge. At these underwater mountain ranges, tectonic plates separate and magma rises to fill the gap, creating new oceanic crust. This process is known as seafloor spreading.
seamount