SEDIMENTARY ROCK IDENTIFICATION

Question 1

how to identify a sedimentary rock

Answer 1

presence of:
-transported grains
-laying 
-fossils
minerals
sedimentary structureson bedding surface or within beds

Question 2

3 main types of sedimentary clasts

Answer 2

• terrigenous clastic sediments
• carbonate sediments
• volcanic clastic sediments

Question 3

volcanic clastic sediments

Answer 3

volcanic material transported and deposited by sedimentary processes

Question 4

carbonate sediments

Answer 4

mostly found in shallow marine environments

comp largely material produce by biological/chemically

formation often controlled, water depth, salinity, terrigenous clastic input

Question 5

terrigenous clastic sediments

Answer 5

composed fragments of older rock that have undergone erosion, transport and deposition

often very fine grained but can be large