Chapter 4 (Geology) Flashcards
(22 cards)
The strength of Earth’s gravity is designed for life
Mass and Structure
It’s gravity pulls on the earth to cause tides
Our Moon
If the earth’s tilt were perpendicular’ there would be no seasons, and the livable area would be very small
Tilt and Rotation (I)
No other planet has liquid water on its surface
Liquid Water
Its filters many harmful rays and particles
Atmosphere
Responsible for filtering particles from the solar wind before they reach the earth
Magnetic Field
Its mass and composition are important for life
Sun
The gas giants deflect many comets and meteors from hitting earth
Location in the Solar System
There is probably a black hole at the center of the galaxy, make it a more dangerous location
Location in the Milky Way
The study of the earth
Geology
Geology as a science has existed, probably since the _______!
Flood
A geologist and deist who first introduced the ideas and principles that later became known as uniformitarianism
James Hutton
The idea that earth-forming processes are natural, has always been the same, and have always happened at the same gradual rate
Uniformitarianism
Published the principles of geology
Charles Lyell (I)
Charles Lyell was called what
“Father of geology”
The idea of an ancient earth
Deep-time View
Suggested that the earth was once a large single landmass that broke up into pieces over time and drifted aart
Alfred Wegener (I)
Alfred Wegener gave rise to the _______ ________ theory!
Plate Tectonics
Identifies rocks and minerals through their makeup and properties
Operational Geology
- draw maps showing where to find different kinds of rocks and the vertical order of rocker layers
- study cracks the rocks in the rocks to look for movement where building foundations will go
- identify different layers of soil and learn how underlying rocks made these layers
Also Operational Geology
All scientists believe the world is regular and (somewhat) predictable, but the principles of uniformity cannot be made to apply to the unobservable past
Historical Geology
The principle of cause and effect cannot be worked “backward”
A Fact under Historical Geology
