Nunatak
A crevasse at the head of a mountain glacier is called a "bergschrund." This feature typically forms where the glacier begins to separate from the surrounding terrain, often due to differential movement between the glacier and the mountain slope. Bergschrunds can be quite deep and wide, posing challenges for climbers and hikers navigating the glacier.
A small mountain lake that forms in a cirque after a glacier melts is called a "tarn." Tarns are typically surrounded by steep cliffs and are often found in mountainous regions where glaciers once existed. They can vary in size and depth, and their formation is a result of glacial activity that carves out the landscape.
Depending on when it was formed, the size and speed it is moving it could be either an Avalanche or Glacier. If it is an incredibly old, slow moving, large, ice mass it is likely a Glacier; however if it is a quickly moving, small (relatively), ice mass it is an Avalanche.
The glacier that has frozen to the bedrock is called a "frozen glacier." When a glacier becomes warm enough to melt at its base, the meltwater effectively 'glues' the glacier to the underlying bedrock. This process allows the glacier to adhere strongly to the bedrock and can help stabilize it.
It is a glacier. As more snow and ice is added at the top, in the mountains, so the extra weight helps to push the front of the glacier downhill.
Nunatak
A crevasse at the head of a mountain glacier is called a "bergschrund." This feature typically forms where the glacier begins to separate from the surrounding terrain, often due to differential movement between the glacier and the mountain slope. Bergschrunds can be quite deep and wide, posing challenges for climbers and hikers navigating the glacier.
An isolated boulder left by a glacier is called a glacial erratic. These boulders are often different in composition compared to the surrounding rocks, as they have been transported and deposited by glaciers.
Hills and tablelands
Being an island, being isolated, being cut off.
This isolated boulder left behind by a glacier is called a glacial erratic. Glacial erratics are large rocks that are carried by glaciers and deposited in a different location when the glacier melts. They can vary in size from small pebbles to massive boulders and are often composed of different rock types than the surrounding landscape.
Depending on when it was formed, the size and speed it is moving it could be either an Avalanche or Glacier. If it is an incredibly old, slow moving, large, ice mass it is likely a Glacier; however if it is a quickly moving, small (relatively), ice mass it is an Avalanche.
The glacier that has frozen to the bedrock is called a "frozen glacier." When a glacier becomes warm enough to melt at its base, the meltwater effectively 'glues' the glacier to the underlying bedrock. This process allows the glacier to adhere strongly to the bedrock and can help stabilize it.
Its a mountain because it isn't moving while glaciers are constantly. It's just covered in snow and ice.
Glacial horn
It is a glacier. As more snow and ice is added at the top, in the mountains, so the extra weight helps to push the front of the glacier downhill.
Rocks surrounded by sea are called sea stacks or coastal stacks. These are isolated pillars of rock that have been eroded by the sea over time, often standing off the coast or in the water.