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Do sedimentary rocks contain shells and skeletons of marine animals?
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Which type of material does biogenous sediment form?
Two types of biogenous sediments are calcareous ooze and siliceous ooze.
What are the two sources of calcium carbonate found in limestone?
Precipitation from solution, and skeletons of marine animals.
Is limestone made from clastic organis or chemical?
A purely chemical sedimentary limestone would contain no fossil remnants, organic limestone would.
Biogenous sediments are shells and skeletons of marine animals and algae what are two examples of this?
radiolaria; foraminifera radiolaria(single-celled animals) forminifera(marine plankton species)
What 3 kinds of sedimentary rocks make up coquina?
Coquina is a sedimentary rock made up of shells, shell fragments, and skeletons of small marine creatures.
What are shells of marine organisms composed of?
The bulk of marine skeletal remains are composed of the mineral calcite. Some marine organisms also have shells of aragonite or silica.
In what type of rock would geologist most likely find evidence of past life forms?
Sedimentary rock and limestone in particular, because it is normally formed from the skeletons of mostly minute dead marine organisms.
In what type of rocks would geologist most likely find evidence of past life forms?
Sedimentary rock and limestone in particular, because it is normally formed from the skeletons of mostly minute dead marine organisms.
Do skeletons exist on the ocean floor?
The ocean floor sediment contains unfathomable numbers of marine organism skeletons.
Compare and contrast the lifestyles of lampreys and sharks?
Lampreys are jawless fishes with cartilaginous skeletons. Most lampreys are parasites on other fishes and are marine animals. A few lamprey species live in freshwater. All sharks live in the sea and have cartilaginous skeletons. Most sharks are predators, but a few are filter feeders on marine plankton.
What type of rock are marine fossils found in?
sedimentary
What is lithified of tiny marine organisms with skeletons composed of silica?
Chalk
