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4 Apr 2011
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Chapter 1
INTRODUCTION TO PHYSICAL GEOLOGY & THE ENVIRONMENT
What is Geology?
-the study of the earth
-the industrial revolution in the 1800s sparked geology because needing new minerals
forced new ways of investigating planet earth by a profession called a geologist
-earliest detailed geologic maps was made my William Smith in England 1815; referred to
Father of Geology
-earth approximately 4.55 billion years old
Moving Continents
-Alfred Wegener; continental drift & Pangea
-Tuzo Wilson; plate tectonics & transform faults
Time & Geology
-geology needs great time, referred to as deep time
-some things can be fast like a landslide or volcanic eruption
-rate of plate motion relatively fast
-animal life forms from 545 million years
-reptiles 230 million years ago
-dinosaurs evolved & extinct 65 million
-humans here only last 3 million
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What Do Geoscientists Do?
-old school geologists spend their time travelling & looking at rock & earth formations
-exploration geologists look for gold, silver, diamonds, etc
-need to protect water, etc
-geochemists: work in the lab to discover the chemistry of rocks and minerals
-petrologists: study the makeup of rocks & how they form
-geoscientists use boats, planes, ships, helicopters, satellites to learn more
-geophysicists: learn the nature of the physical conditions on or under earths surface
-all are professionals & have qualifications
Environmental Geology: New Challenges for Geoscientists
-new challenges are finding safe drinking water, and dealing with waste products
-environmental geoscientists
-engineering geoscientists dealing with safe building conditions & land stability
-geomatician collects, organizes, analyzes, and creates images from any spatial and
geographic data available in digital form
Common Themes
-geoscientists work with teams of biologists, lawyers, engineers, planners, etc
-society needs geoscientists because they appreciate & understand geological processes
What is the Scientific Method?
-problem or question
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Document Summary

The industrial revolution in the 1800s sparked geology because needing new minerals forced new ways of investigating planet earth by a profession called a geologist. Earliest detailed geologic maps was made my william smith in england 1815; referred to. Geology needs great time, referred to as deep time. Some things can be fast like a landslide or volcanic eruption. Old school geologists spend their time travelling & looking at rock & earth formations. Exploration geologists look for gold, silver, diamonds, etc. Geochemists: work in the lab to discover the chemistry of rocks and minerals. Petrologists: study the makeup of rocks & how they form. Geoscientists use boats, planes, ships, helicopters, satellites to learn more. Geophysicists: learn the nature of the physical conditions on or under earth"s surface. New challenges are finding safe drinking water, and dealing with waste products. Engineering geoscientists dealing with safe building conditions & land stability.

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