Download Chemical, Organic, Clastic

Sedimentary Rocks
Types of Rocks
Particles
Many types
Dirt
Sand
Crystals
Organic
material
Compressed
Compacted
Different
sizes
1. Made from sediments
2. Deposition: Settling of sediments
in a location. Leads to…
3. Stratification: Layering of rock.
4. Characteristics determined by the
source of sediment.
5. Angularity: Caused by collisions
between sediments during erosion.
1. Size/shape/types of sediments
can vary.
2. Compaction and/or Cementation
3. Cross beds, reverse beds, graded beds.
Magma
Lava
4. Sed. Rock Formation Classes:
Chemical, Organic, Clastic
5. Uneven and angular.
6. Smooth and rounded.
Sediments: Loose fragments of rocks, minerals and/or
organic material.
Sandstone-small particles
Compaction: Weight/pressure of many layers squeezes
sediments together. Size of space (pores) in between
sediment varies.
Cementation: Water deposits certain minerals into pore
spaces in between sediments and act as glue to hold together.
Chemical: Evaporation of liquid leaves sediment behind.
Organic: Remains of living things.
Clastic: Erosion of sediments by wind, water, or ice creates large
fragments, smaller sand size sediments and very small, fine clay-like
sediments. Erosion can cause sediments to be rough or smooth.
All metal
Individual minerals
Igneous rocks
Metamorphic rocks
Sedimentary rocks within all types of rocks are made of sediments that are cemented and/or compacted
together. Sediment origin can vary, as well as, the size, shape and arrangement.