Where does Micritic limestone come from?

Where does Micritic limestone come from?

Most of what people call ” limestone” is largely or exclusively micrite. As with clay (shale) it is deposited in generally quiet water, and appears in any environment where those conditions exist. This specimen could have come from a tidal lake, or a subtidal lagoon, or some similar environment.

Where is fossiliferous limestone found?

Fossiliferous Limestone: Ammonite fossils found in limestone quarry in Germany. Ammonite fossils are abundant in the area around Nuremberg and Stuttgart.

Where is limestone formation today?

How does limestone form? Limestone originates mainly through the lithification of loose carbonate sediments. Modern carbonate sediments are generated in a variety of environments: continental, marine, and transitional, but most are marine. The present-day Bahama banks is the best known modern carbonate setting.

Where is organic limestone formed?

Limestone is formed in two ways. It can be formed with the help of living organisms and by evaporation. Ocean-dwelling organisms such as oysters, clams, mussels and coral use calcium carbonate (CaCO3) found in seawater to create their shells and bones.

How is Oolitic limestone formed?

Oolitic limestone is made up of small spheres called ooiliths that are stuck together by lime mud. They form when calcium carbonate is deposited on the surface of sand grains rolled (by waves) around on a shallow sea floor.

How many years does it take for limestone to form?

Cementing takes place rapidly in carbonate sediments, typically within less than a million years of deposition. Some cementing occurs while the sediments are still under water, forming hardgrounds.

How is fossiliferous limestone?

Fossiliferous limestone is of the second category. Certain marine organisms, such as coral, remove calcium carbonate from their watery environment to make the hard parts of their bodies. When the marine organisms die, these hard parts collect on the sea floor and become limestone.

What is the difference between limestone and fossiliferous limestone?

Fossiliferous limestone is any type of limestone, made mostly of calcium carbonate (CaCO3) in the form of the minerals calcite or aragonite, that contains an abundance of fossils or fossil traces. The fossils in these rocks may be of macroscopic or microscopic size.

Where is limestone found in the United States?

Limestone is most often mined from a quarry. However, underground limestone mines are found at places in the central and eastern United States, especially in and near cities. Underground mining of lime- stone has some advantages over surface quarrying and will probably increase in the future.

How is fossil limestone formed?

Certain marine organisms, such as coral, remove calcium carbonate from their watery environment to make the hard parts of their bodies. When the marine organisms die, these hard parts collect on the sea floor and become limestone. The fossil remains can be found embedded in samples of limestone.

What is the composition of oolitic limestone?

Oolitic Limestone

What environment does oolitic limestone form?

marine water
Oolites form today in warm, supersaturated, shallow, highly aggitated marine water. They are commonly associated with zones of high tidal activity in a subtidal or lower intertidal environment.