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The bulk of marine skeletal remains are composed of the mineral calcite. Some marine organisms also have shells of aragonite or silica.
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∙ 10y ago
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∙ 9y agoCalcium carbonate, or CaCO3 is the compound that is found in shells of marine animals and that makes up limestone.
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∙ 13y agoShells and skeletons of sea animals
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∙ 12y agoShelly limestone
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∙ 13y agoCaCO3
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Which of these rocks formed in a marine environment?
Limestone is made by the accumulation of shells and marine organisms.
Is diatomaceous earth similar to limestone?
Diatomaceous earth and limestone are both sedimentary rocks composed of the remains of ancient organisms. However, they are chemically different. Diatomaceous earth is mainly composed of the silica cell walls of diatoms, while limestone is mainly composed of calcium carbonate from the shells and skeletons of marine organisms.
What is lithified of tiny marine organisms with skeletons composed of silica?
Chalk
Which sedementray rock is composed of fragment skeletons and shells of sea organisms compacted and cemented together?
limestone
Is the ocean floor a good place for fossils to form?
A lot of shells of marine organisms wind up on the ocean floor. Bones do not last on the ocean floor, they get eaten. But shells can last.
What is an organic sedimentary rock composed of cemented shells?
Coquina is an organic sedimentary rock composed primarily of cemented shells of marine organisms.
Which of these rocks formed in a marine environment?
Limestone is made by the accumulation of shells and marine organisms.
Which type of material does biogenous sediment form?
Two types of biogenous sediments are calcareous ooze and siliceous ooze.
Which kind of sedimentary rock is formed by cemented shells of marine organisms?
Limestone
Is diatomaceous earth similar to limestone?
Diatomaceous earth and limestone are both sedimentary rocks composed of the remains of ancient organisms. However, they are chemically different. Diatomaceous earth is mainly composed of the silica cell walls of diatoms, while limestone is mainly composed of calcium carbonate from the shells and skeletons of marine organisms.
What is lithified of tiny marine organisms with skeletons composed of silica?
Chalk
Cemented shells of marine organisms form which kind of sedimentary rock?
Bioclastic sedimentary rock--coquina.
Which sedementray rock is composed of fragment skeletons and shells of sea organisms compacted and cemented together?
limestone
How was the rock made?
Chalk is a form of limestone composed of the skeletons and secretions of small marine organisms.
When marine organisms die their shells eventually become what rock?
They can become sedimentary rock, most likely limestone.
Can shells become limestone?
They can, and do. Chalk and coquina are examples of limestone formed from skeletal or shell remains of marine organisms.
How was the rock chalk made?
Chalk is a form of limestone composed of the skeletons and secretions of small marine organisms.
