FratFiles

• Save Paper

Sedimentary and Metamorphic rocks

� Rocks formed when sediments are cemented or compacted once these sediments are deposited.
� Constitutes about 5% of the Earths crust.
� Many of these rocks also contain fossils.
� Many of these rocks are important economically. (Energy resources)
Classification of sedimentary rocks

� Can be classified as 1) detrital and 2) chemical

� 1.Detrital: Rocks formed mostly by mechanical weathering
� Grouped based on particle size:
-Coarse (Ex . Conglomerate, breccia)
-Medium (ex. Sandstone)
-Fine (Ex. Siltstone)
-Very Fine (Ex. Shale

� 2. Sedimentary rock that is formed from chemical sediments, which are precipitated from solution.
� Formed from chemical weathering
� EX. Limestone, travertine, coal, coquina, rock gypsum, rock salt.
Metamorphic rocks

� Rocks formed from metamorphism (transformation of one rock to another)
� Metamorphism occurs when preexisting rock is subjected to temperatures and......

View the rest of this paper...

Approximate Word Count: 402
Approximate Pages: 2 (250 words per double-spaced page)

Similar Essays

1. Earth Science- Rocks
   

   earth science- rocks Sedimentary and Metamorphic rocks � Rocks formed when sediments are cemented or compacted once these sediments are deposited. � Constitutes about 5% of

2. Earth Science Rocks
   

   Earth Science Rocks The 8 most common elements in the earth's crust are Oxygen, Silicon, Aluminum, Iron, Calcium, Sodium, Potassium, & Magnesium. They compose 98.5% of the total

3. Martian Rocks
   

   Martian Rocks H. G. Wells wrote in his book, "War of the Worlds", about Martian invasion toward earth. He mentioned, "No one would have believed, in the last years of the

4. Power Of The Quake
   

   Power of the Quake POWER OF THE QUAKE Jason Conley Professor Tim Born Earth Science-ES 1010 20 February, 2002 Power of the quake When humans are under tremendous pressure, they

5. Branches Of Chemistry
   

   heat of formation, etc. Geochemistry involves study of the chemical composition of the Earth and other planets, chemical processes and reactions that govern the composition of