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Diagenesis - Diagenesis is the process that turns sediment into rock. The first stage of the process is compaction. Compaction occurs as the weight of the overlying material increases. Compaction forces the grains closer together, reducing pore space and eliminating some of the contained water. Some of this water may carry mineral components in solution, and these constituents may later precipitate as new minerals in the pore spaces. This causes cementation, which will then start to bind the individual particles together. Further compaction and burial may cause recrystallization of the minerals to make the rock even harder.
Other conditions present during diagenesis, such as the presence of absence of free oxygen may cause other alterations to the original sediment. In an environment where there is excess oxygen (Oxidizing Environment) organic remains will be converted to carbon dioxide and water. Iron will change from Fe2+ to Fe3+, and will change the color of the sediment to a deep red (rust) color. In an environment where there is a depletion of oxygen (Reducing Environment), organic material may be transformed to solid carbon in the form of coal, or may be converted to hydrocarbons, the source of petroleum.
What else can I help you with?
Is chert metamorphic sedimentary or igneous?
Brick is baked mud, and as such, can be considered to be sedimentary.
What features of sedimentary rocks are unlikely to be found in metamorphic rocks what features of metamorphic rocks do not occur in sedimentary rocks?
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What is the or-gin of sedimentary rocks?
weathering of preexisting rocks form clastic sedimentary rocks, Oversaturated water basins form chemical sedimentary rocks after the water evaporates and dead sea organisms settle at the bottom forming biochemical sedimentary rocks.
Are sedimentary rocks chemically weathered?
Sedimentary rocks can be both chemically and mechanically weathered.
Is sedimentary rocks formed the same way normal rocks are?
No, because a sedimentary rock is formed from pieces of other rocks.
Is iron pyrite fools gold sedimentary igneous or metamorphic?
Iron pyrite, also known as fools gold, is mainly found in sedimentary rocks. It forms as a result of sedimentation and diagenesis processes.
How do rocks breakdown?
diagenesis
Is chert metamorphic sedimentary or igneous?
Brick is baked mud, and as such, can be considered to be sedimentary.
What parts of the Rock cycle occur at the Earth's surface?
Mostly the sedimentary part which involves the process of weathering, and diagenesis occurs at the earths surface.
Diagenesis refers to?
Diagenesis refers to the physical and chemical changes that sediments undergo as they are compressed and cemented into sedimentary rocks. It occurs at relatively low temperatures and pressures and can involve processes like mineral growth, recrystallization, and compaction.
Rocks formed from weathered debris from preexisisting rocks are called?
They are called clastic sedimentary rocks.
What has the author Mark Vernon Mauritsen written?
Mark Vernon Mauritsen has written: 'Studies of diagenesis of bermuda limestones' -- subject(s): Carbonate Rocks, Diagenesis, Limestone, Rocks, Carbonate
What are the major processes involved in the formation of sedimentary rocks?
The major processes involved in the formation of sedimentary rocks are weathering, erosion, transportation, deposition, compaction, and cementation. Weathering breaks down rocks into smaller particles, which are then transported by water, wind, or ice. The sediments are deposited in layers, compacted by the weight of overlaying sediments, and cemented together over time to form sedimentary rocks.
Why do some rocks have different minerals?
the reason is because rocks can have different depositional environments and diagenesis history.
What has the author Sam Boggs written?
Sam Boggs has written: 'Petrology of sedimentary rocks' -- subject(s): Sedimentary Rocks 'Petrology of sedimentary rocks' -- subject(s): Rocks, Sedimentary, Sedimentary Rocks
Are sedimentary rocks formed from fragments of other rocks chemical sedimentary rocks?
No, sedimentary rocks formed from fragments of other rocks are called clastic sedimentary rocks. Chemical sedimentary rocks form from minerals that are dissolved in water and precipitate out to form rocks like limestone or halite.
Are there any fossils in sedimentary rocks?
Yes all fossils occur in sedimentary rocks or rocks that began as sedimentary rocks.
