Unit 4 Reading: Sedimentary Processes - Student Materials
The formation of a clastic sediment and sedimentary rocks involves five processes: Weathering - The first step is transforming solid rock into smaller fragments or dissolved ions by physical and chemical weathering as discussed in the last lecture.
When rocks (igneous, sedimentary, or metamorphic) are at or near the surface of the earth they are exposed to the processes of weathering. In mechanical weathering rocks are broken up into smaller pieces by frost-wedging (the freezing and thawing of water inside cracks in the rock), root-wedging ...
Which statement represents a fact about the rock cycle? A. All the processes involved in the rock cycle occur beneath the surface of Earth. B. Fossils, skeletal remains, and living organisms do not play a role in the rock cycle.
-- Rock particles are deposited somewhere else --the final step in the erosional-depositional system. · agents of erosion become agents of deposition · Final deposition of particles (sediments) usually occurs at the mouth of a stream--a process called horizontal sorting takes place:
Learning outcomes: Summarize the processes that act to make sedimentary rocks. Explain how sedimentary processes (especially chemical weathering, erosion and deposition, and crystallization) redistribute and ...
Like most Earth materials, rocks are created and destroyed in cycles. The rock cycle is a model that describes the formation, breakdown, and reformation of a rock as a result of sedimentary, igneous, and metamorphic processes.