TODAY Get out you ESRT and a piece of paper The following questions are from your ESRT. You’ll have a minute per question…

Question 1 What are 2 types of weathering?

Question 2 What is the difference between the focus and epicenter?

Question 3 Name a felsic igneous rock that cooled slowly.

Question 4 What is New York's main type of weathering?

Answers What are 2 types of weathering? –Physical and Chemical What is the difference between the focus and epicenter? –Focus in ground, epicenter point above focus. Name a felsic igneous rock that cooled slowly. –Granite or pegmatite What is New York's main type of weathering? –Frost action

Permeability

Vocab Infiltration Permeability Porosity

Infiltration This is the process of fluids flowing into the ground. What controls the rate? –Water –Composition –Size

Permeability This is the speed to allow fluids to pass thought sediments. The available amount of space controls this.

Causes Poor drainage & permeability –Slope –Composition of material –Grain size –Vegetation How can we use this?? –Water –Spills –Sewage

Porosity This is the amount of space available. Grain size!