What are the 4 processes that form a sedimentary rock?
The most important geological processes that lead to the creation of sedimentary rocks are erosion, weathering, dissolution, precipitation, and lithification. Erosion and weathering include the effects of wind and rain, which slowly break down large rocks into smaller ones.
What process begins the formation of sedimentary rock?
Weathering breaks down pre-existing rock into particles, while erosion moves the particles to a site of deposition. These processes begin the formation of sedimentary rock. Sediment can be moved by wind, running water, ice, or waves.
Which process leads to the formation of sedimentary rock quizlet?
Sedimentary rock that forms when rock fragments are squeezed together under high pressure. Sedimentary rock that forms from remains of organisms deposited in thick layers. Most sedimentary rocks are formed through a sequence of processes: weathering, erosion, deposition, compaction, and cementation.
What are the steps in the formation of sedimentary rocks?
Formation of Sedimentary Rocks Sedimentary rocks are the product of 1) weathering of preexisting rocks, 2) transport of the weathering products, 3) deposition of the material, followed by 4) compaction, and 5) cementation of the sediment to form a rock. The latter two steps are called lithification.
How are clastic and chemical sedimentary rocks classified?
Sedimentary rock is classified into two main categories: clastic and chemical. Clastic or detrital sedimentary rocks are made from pieces of bedrock, sediment, derived primarily by mechanical weathering. Clastic rocks may also include chemically weathered sediment. Clastic rocks are classified by grain shape, grain size, and sorting.
Which is the main cause of erosion and weathering?
Erosion is a mechanical process, usually driven by water, wind, gravity, or ice, which transports sediment (and soil) from the place of weathering. Liquid water is the main agent of erosion. Gravity and mass wasting processes (see Chapter 10, Mass Wasting) move rocks and sediment to new locations.
What makes up the solid products of sedimentary rocks?
1) Clastic (detrital) sedimentary rocks are composed of the solid products of weathering (gravel, sand, silt, and clay) cemented together by the dissolved weathering products.