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What forms when underground layers of limestone are dissolved by ground water?
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.
What kind of weathering is limestone dissolved by carbonic acid?
Limestone is dissolved by carbonic acid through a process called chemical weathering. Carbonic acid forms when rainwater combines with carbon dioxide in the atmosphere or soil, creating a weak acid that gradually breaks down the calcium carbonate in limestone over time.
What is groundwater that forms caves like?
Acidic ground water (rain-water that has absorbed atmospheric carbon dioxide to form carbonic acid) forms caves by dissolving the limestone as it flows through the joints & other discontinuities in the rock mass.
Which of these is formed from surface runoff that cannot penetrate the ground?
Surface runoff that cannot penetrate the ground forms streams, rivers, or lakes.
When melted rock cools or hardens in or under earth surface it forms to what?
When melted rock cools and hardens in or under the Earth's surface, it forms igneous rock. This process can happen above ground, forming volcanic rocks, or below ground, forming intrusive rocks.
What forms when underground layers of limestone are dissolved by ground water?
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.
Are stalactites found anywhere else other than caves?
No. Stalactites are formed of limestone that is dissolved in slightly acidic ground water that precipitates and deposits a fraction of the dissolved limestone where the solution drips from the roof of a cavern to the floor. On the floor, below the stalactite, a stalagmite forms. The stalactite grows downward, and the stalagmite grows upward. This whole process requires a limestone cavern.
Are there 2 types of groundwater deposition in limestone caves and what do they have in comin?
The primary one is calcite precipitated from the ground-water that had dissolved it from the surrounding limestone, and though the deposits themselves take various forms such as stalactites and stalagmites they are all still calcite formations.
What is one characteristic of the round water that forms caves?
Ground water I think you meant! It is slightly acidic, primarily from dissolved atmospheric CO2, so can dissolve limestone given enough time.
What sedimentary forms near the earth surface?
igneous rock and/or limestone
What dissolved the limestone to form the caves?
The forests that grows over the limestone forms mulch that produces the acid required. That's true but the prime solvent is Carbonic Acid: atmospheric carbon dioxide dissolved into rain-water.
What forms when weak acids in ground water come in contact with limestone?
caves
When limestone dissolves what happenns to the dissolved material?
When limestone dissolves, the dissolved material forms ions, primarily calcium and bicarbonate ions, in the water. These ions can then be carried away by the water through rivers or groundwater. Over time, this process can lead to the formation of caves and sinkholes.
Does limestone turn water blue?
No, limestone is a sedimentary rock that is the basis for marble if it is compressed by millions of years of pressure. Limestone consists of calcium carbonate, CaCO3. Limestone dissolved in slightly acidic water forms the basis of stalactites and stalagmites in limestone caves.
What kind of weathering is limestone dissolved by carbonic acid?
Limestone is dissolved by carbonic acid through a process called chemical weathering. Carbonic acid forms when rainwater combines with carbon dioxide in the atmosphere or soil, creating a weak acid that gradually breaks down the calcium carbonate in limestone over time.
What are the three causes of sinkholes in Florida?
Florida has a lot of porous limestone underneath the surface. It can hold lots of water in underground aquifers. As groundwater flows through the limestone, it forms an eroded landscape called karst, known for caves, springs and sinkholes.
What substance in rainwater makes it so limestone weather easier than sandstone?
Carbon dioxide dissolved in rain water forms a weak acid which slowly weathers limestone, a carbonate which reacts with acids.
