SEDIMENT IS COOL
The process that produces rock and mineral fragments.
What is weathering
The first step in sedimentary rock formation
What is Weathering?
Breccia
What is a type of clastic rock that has sharp, angular edges?
When sedimentary rocks are classified based on the size of the fragments (pieces/grains)
What are clastic rocks?
The two groups limestone can be classified as...
What are chemical rock & biochemical rock?
Small,solid pieces of matierial that come from rocks or living things.
What is sediment?
Compaction
What is the first step in lithification? (Or any other acceptable answer)
List three major groups of sedimentary rocks.
What are clastic,biochemical,chemical?
An example of a clastic rock that has fine grained (1/256mm-1/16mm) tiny particles of clay
What is siltstone?
How chemical rocks can be formed?
What are evaporation and precipitation?
Water or wind loosen and carry away fragments of rock from one location to another.
What is Erosion?
The last step in sedimentary rock formation
What is Cementation?
A black(low silica) biochemical rock that rhymes with bowl
What is coal?
A clastic rock that has different-sized rock fragments that have sharp edges
What is breccia?
Rock salt crystallizes from which mineral?
What is Halite?
Four main agents of erosion.
What are wind, running water, glaciers and gravity?
The material that glue the grains that have been compacted?
What are calcite, and iron oxide? (or any other acceptable answer)
This is a clastic rock with medium grained, small particles of sand
What is sandstone?
List 2 important biochemical (organic)rocks.
What are coal and limestone? (chert, chalk, coquina also accepted)
Sedimentary rocks formed by coarse grained gravels (more than 2mm in size) that are rounded and smooth.
What are Conglomerates?
The process that follows erosion. (erosion=sediments are carried by wind, rain, glaciers and gravity from one location to another)
What is deposition?
Particles squeezed together under great pressure
What is the definition of compaction?
The remains of plants and animals are deposited in thick layers
What is a biochemical rock?
Which rock can be classified in 2 catergories?
What is limestone?
An example of a medium grained sedimentary rock that has high porosity (30% pores)
What is sandstone?