Aya Alygeo chapter 7

Aya Alygeo chapter 7 - Professor Ohan Chapter 7 1-...

Info iconThis preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: Professor Ohan Chapter 7 1- Sedimentary rock is a type of rock that is formed by sedimentation of material at the Earth's surface and within bodies of water. Sedimentation is the collective name for processes that cause mineral and/or organic particles ( detritus ) to settle and accumulate or minerals to precipitate from a solution . 2- Particles that form a sedimentary rock by accumulating are called sediment . Before being deposited, sediment was formed by weathering and erosion in a source area, and then transported to the place of deposition by water , wind , mass movement or glaciers which are called agents of denudation. 3- The sedimentary rock cover of the continents of the Earth's crust is extensive, but the total contribution of sedimentary rocks is estimated to be only 5% of the total volume of the crust. Sedimentary rocks are only a thin veneer over a crust consisting mainly of igneous and metamorphic rocks . 4- Sedimentary rocks are deposited in layers as strata , forming a structure called bedding . The study of sedimentary rocks and rock strata provides information about the subsurface that is useful for civil engineering , for example in the construction of roads , houses , tunnels , canals or other constructions. Sedimentary rocks are also important sources of natural resources like coal , fossil fuels , drinking water or ores . 5- The study of the sequence of sedimentary rock strata is the main source for scientific knowledge about the Earth's history , including palaeogeography , paleoclimatology and the history of life . 6- The scientific discipline that studies the properties and origin of sedimentary rocks is called sedimentology . Sedimentology is both part of geology and physical geography and overlaps partly with other disciplines in the Earth sciences , such as pedology , geomorphology , geochemistry or structural geology ....
View Full Document

This note was uploaded on 02/05/2012 for the course GEOLOGY 101-101 taught by Professor Ohan during the Spring '11 term at CUNY City.

Page1 / 4

Aya Alygeo chapter 7 - Professor Ohan Chapter 7 1-...

This preview shows document pages 1 - 2. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online