GEOL 104 Lecture Notes - Lecture 11: Drilling And Blasting, Hydrolysis, Spheroidal Weathering

20 views2 pages

Document Summary

Weathering: involves the physical breakdown and chemical alterations of rock at or near earths surface, with no transportation, two types: Physical forces breaking rocks into smaller pieces. Chemical transformation of rock into new compounds: both types work simultaneously and reinforce each other. Mechanical weathering increases surface area: surface controlled processes. As mechanical weathering breaks rock into smaller pieces, more surface area is exposed to chemical weathering. Water works its way into cracks in rocks and the freezing enlarges the cracks in the rocks. Lenses of ice grow larger as they attract liquid water from surrounding areas. Can wedge out rock material and split rocks: salt crystal growth. Sea spray or salty groundwater penetrates crevices and pore spaces in rocks. As the water evaporates, salt crystals form and enlarge the crevices: sheeting/unloading. Large masses of igneous rock are exposed by erosion and concentric slabs break loose.

Get access

Grade+20% off
$8 USD/m$10 USD/m
Billed $96 USD annually
Grade+
Homework Help
Study Guides
Textbook Solutions
Class Notes
Textbook Notes
Booster Class
40 Verified Answers
Class+
$8 USD/m
Billed $96 USD annually
Class+
Homework Help
Study Guides
Textbook Solutions
Class Notes
Textbook Notes
Booster Class
30 Verified Answers

Related Documents