111-pp12 - UNIVERSITY OF SOUTH ALABAMA Last time (before...

Info iconThis preview shows pages 1–3. Sign up to view the full content.

View Full Document Right Arrow Icon
1 GY 111: Physical Geology GY 111: Physical Geology UNIVERSITY OF SOUTH ALABAMA Lecture 12: Weathering Erosion and Soil Lecture 12: Weathering Erosion and Soil Last time (before the test) we covered… 1) Intrusive igneous rocks and the bodies they form 2) Summary diagram of all igneous rock types Today’s Agenda 1) Mineral Stability 2) Types of weathering (Physical, Chemical, Biological) 3) Chemical weathering reactions 4) Soils Web notes 12a (weathering) Web notes 12b (soils) Mineral Stability Bowen’s Reaction Series Mineral Stability Bowen’s Reaction Series Mineral Stability First to form (most stable at high temperature)
Background image of page 1

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

View Full DocumentRight Arrow Icon
2 Bowen’s Reaction Series Mineral Stability First to form (most stable at high temperature) Last to form (most stable at low temperature) Bowen’s Reaction Series Mineral Stability First to form (most stable at high temperature) Last to form (most stable at low temperature) Consider what happens when these minerals are exposed at the surface of the Earth (low temp, low pressure, rain fall) Bowen’s Reaction Series Mineral Stability Least stable at the surface Most stable at the surface Bowen’s Reaction Series Mineral Stability Least stable at the surface Most stable at the surface Kaolinite (clay) Fe & Al-oxides (hematite, limonite, bauxite) Weathering: the breakdown of rocks at the surface of the Earth. There are 3 types of weathering: Weathering Weathering: the breakdown of rocks at the surface of the Earth. There are 3 types of weathering: Weathering 1) Physical – mechanical reduction in the size of rock components.
Background image of page 2
Image of page 3
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 02/04/2012 for the course GLY 111 taught by Professor Haywick during the Fall '11 term at S. Alabama.

Page1 / 7

111-pp12 - UNIVERSITY OF SOUTH ALABAMA Last time (before...

This preview shows document pages 1 - 3. Sign up to view the full document.

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