it is dissolved by weak acids in rainwater
Limestone can come in grey, yellow, white and a bunch of other colors too.
actually, limestone is used in making concrete, not the other way around.
A what rock...?Limestone is sedimentary - the other two classes are igneous and metamorphic.Limestone will metamorphose in suitable conditions of heat and pressure, into marble.
Well, Simple..."NONE / NOTHING"If you continue seeding, the other people who download the particular file/files make it faster & easier for them to finished....=)-AeiByCi
Organic limestone, also known as biogenic limestone, is primarily formed from the accumulation of biological debris, such as shells, coral, and other calcareous organisms. This type of limestone is typically found in marine environments where conditions promote the growth and deposition of these organisms. The most common varieties include chalk, composed of microscopic coccolithophores, and coquina, made up of shell fragments. Organic limestone plays a significant role in the carbon cycle and can also serve as an important resource in construction and industry.
Limestone weathers faster than granite because it is more susceptible to chemical weathering due to its composition of calcium carbonate. Granite, on the other hand, is a more resistant rock as it is composed of harder minerals like quartz and feldspar.
I'll say granite because the limestone as you know, is faster to it's weathering.
The main processes that affect limestone are weathering, erosion, and dissolution. Weathering breaks down the rock, erosion transports the broken material, and dissolution occurs when rainwater or acidic water dissolves the limestone. These processes can lead to the formation of caves, sinkholes, and other unique landforms.
Limestone weathering does not remove carbon dioxide from the atmosphere because the carbon dioxide released during the weathering process is eventually reabsorbed by other chemical reactions, such as the formation of bicarbonate ions in water. The overall effect of limestone weathering on atmospheric carbon dioxide levels is neutral.
It is susceptible to chemical weathering more than other rocks from exposure to naturally acidic rainfall and groundwater.
Quartzite contains mostly quartz, which is a very hard and durable mineral that is resistant to weathering. Limestone, on the other hand, is made mostly of calcite, which is more easily dissolved and eroded by acidic water. This difference in mineral composition accounts for quartzite's greater resistance to weathering compared to limestone.
Rainwater is slightly acidic and will react with the calcium carbonate found in limestone and other rocks. The resultant erosion is an example of chemical weathering.
Limestone would likely have the fastest rate of weathering in a warm wet climate. This is because limestone is more soluble in water compared to other rocks like granite or basalt, leading to quicker dissolution and weathering when exposed to moisture in a warm climate.
Yes, it is possible for a scene to be affected by both mechanical and chemical weathering simultaneously. For example, a limestone cliff can be subject to both physical breakdown due to mechanical weathering like freeze-thaw cycles, and chemical weathering from acid rain slowly dissolving the limestone. This combination can lead to the formation of caves and other unique rock formations.
Limestone typically weathers slowly due to its composition of calcium carbonate, which is relatively resistant to chemical weathering processes. However, the rate of weathering can be influenced by factors such as climate, presence of acid rain, and biological activity. Over time, limestone can be eroded by natural processes such as water and wind, forming unique landforms like caves and sinkholes.
Speleothems are formed as a result of chemical weathering processes. Groundwater percolating through limestone or other soluble rocks dissolves minerals, and when the water reaches the cave, these minerals are deposited as speleothems such as stalactites and stalagmites through precipitation.
There are two types of weathering: chemical and physical. Chemical weathering is said to occur when the chemical compounds of rocks are changed. Physical weathering happens due to wind, rain, or other natural occurrences.