Yahoo Answers is shutting down on May 4th, 2021 (Eastern Time) and beginning April 20th, 2021 (Eastern Time) the Yahoo Answers website will be in read-only mode. There will be no changes to other Yahoo properties or services, or your Yahoo account. You can find more information about the Yahoo Answers shutdown and how to download your data on this help page.
Trending News
The main difference between sedimentary,metamorphic,and igneous rocks is the?
1.- means by which they are located
2.- conditions under which they are formed
3.- minerals of which they are composed
4.- location in which they are found
2 Answers
- Dan SLv 71 decade agoFavorite Answer
2.- conditions under which they are formed; that is the primary difference between the three rocks.
- ?Lv 51 decade ago
2- conditions under which they are formed.
Geologists categorize rocks into three basic groups, of which sedimentary and metamorphic are two. Igneous is the third. Sedimentary rocks are laid down in layers of sediments such as mud, silt and sand that accumulate and harden over time. Igneous rocks are formed from the solidification of lava or magma. Metamorphic rocks are a bit of a combination. They are sedimentary rocks or igneous rocks that have been deformed and changed by high pressure and temperature deep in Earth, or by contact with, or close proximity to a magmatic intrusion.
http://library.thinkquest.org/04oct/00830/threeroc...
http://minerals.suite101.com/article.cfm/how_to_id...