karst landforms in mallorca
TRANSCRIPT
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Karst Landforms in Mallorca(Some Karst Formations)
Karst landforms are generally the result of mildly acidic water acting on soluble bedrock.
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The name, “Karst” comes from the Karst region in Croatia, where this landscape is very common.
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The water, rich in CO2, acidifies and dissolves the limestone rock to create different formations both under ground as well as the above gournd.H20 + CO2 + CaCO3 Ca (CO3H)2
Acidic water Limestone
(insoluble)
Calcium Bicarbonate
(Soluble)
This chemical reaction is reversible. This is to say that the calcium bicarbonate can precipitate, forming new limestone rock.
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The acidic water:
I. It erodes the earth’s surface.
II. It is filtered through permeable soil.
III. It erodes the limestone under ground, forming caverns and caves.
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Karst Formations Found Above
Ground
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Limestone Pavement: The runoff water erodes rock furrows.
It is as if they were the claws of a giant spider rock.
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Karst Canyon:
This is formed by the erosion of a river or a flood.
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Karst Formations Found Below
Ground
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Caves: Water, which seeps into the ground, erodes the limestone, forming caves. Due to the precipitation of calcium bicarbonate inside the caves, this can lead to different formations in the rocks.
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STALACTITES: limesto-ne formations hanging from the cracks in the ceiling of the caves.
COLUMNS.
Formations formed when a stalactite and stalagmite meet and bind together.
STALAGMITES: Limestone formations on the floor of caves fromed by precipitation of water falling from the stalactites.
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This is the group of students who worked on this project.
Five of them are coming to Estonia