Lecture 1 Notes

Lecture 1 Notes - Sediment Cement Review Rocks 3 Types...

Info iconThis preview shows pages 1–9. Sign up to view the full content.

View Full Document Right Arrow Icon
Cement Sediment
Background image of page 1

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

View Full DocumentRight Arrow Icon
Rocks – 3 Types Igneous, Sedimentary, and Metamorphic Review
Background image of page 2
Most of the crust is made of igneous and metamorphic rocks. BUT, sedimentary rocks are the most abundant rocks on the surface Review
Background image of page 3

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

View Full DocumentRight Arrow Icon
End of Material for exam 1 Also, read chapters 1-4
Background image of page 4
Igneous Rocks granite gabbro rhyolite porphyry basalt Read Chapter 5
Background image of page 5

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

View Full DocumentRight Arrow Icon
Igneous Rock: Rock formed by the solidification of magma or lava. If rock melts below the surface, the molten rock is called magma . Magma is buoyant (less- dense) than surrounding “country rock”, so it rises toward the surface. Magma that solidifies below the surface forms intrusive (plutonic) igneous rocks. Some magma may make it to the surface, forming lava which solidifies to become an extrusive (volcanic) igneous rock.
Background image of page 6
Some Terminology: Molten rock is called magma if it is below the Earth’s surface Molten rock is called lava if it is on the Earth’s surface Igneous rocks that are formed beneath the surface by magma are called intrusive (also called plutonic) Igneous rocks that are formed at the surface by lava are called extrusive (also called volcanic) The rock that magma intrudes into is given the general term “country rock
Background image of page 7

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

View Full DocumentRight Arrow Icon
Country rock
Background image of page 8
Image of page 9
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 03/03/2010 for the course GEOLOGY glg 321 taught by Professor Na during the Spring '10 term at ASU.

Page1 / 23

Lecture 1 Notes - Sediment Cement Review Rocks 3 Types...

This preview shows document pages 1 - 9. Sign up to view the full document.

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