No. They can be made of any type of rock that was weathered, eroded, and squished back togather again.
Perhaps.
Clastic sedimentary rocks are formed from particles of pre-existing sedimentary, metamorphic, or igneous rock that are deposited, compacted, and cemented together by natural processes.Clastic sedimentary rock is made of fragments of rocks cemented together by a mineral such as calcite or quartz.
Organic Sedimentary Rocks are formed from remains of plants and animals.
Clastic sedimentary rocks and Cataclasites (a form of metamorphic rock) are formed from broken rocks.
Sandstone rocks are formed from sedimentary rocks. It is when sedimentary rocks are broke down into small pieces.
They are called clastic sedimentary rocks.
No. The rocks you describe are clastic or detrital sedimentary rocks.
No, because a sedimentary rock is formed from pieces of other rocks.
Clastic Sedimentary Rock- Sedimnetary rocks formed from fragments of rocks cemented together by minerals such as calcite.Chemical Sedimentary Rock- Sedimentary rocks formed from a solution of minerals (such as halite) and water.Organice Sedimentary Rocks- Sedimentary Rocks formed from the remaints of dead sea animals and seashells.
Clastic and nonclastic
Chemically formed sedimentary rocks are formed from dead remains of plants and animals that is from an organic sediment.
sedimentary rocks