GEOLOGY MID TERM STUDY GUIDE Part 2
How are divisions of geologic time scale defined?
Important events that happened in earths history
During what geologic time periods did the following events occur?
Earliest Fossils- Precambrian
Major Glaciers- Cenoz
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8 March 2013
When Methane Made Climate by James F. Kasting
During the first two billion years, methanogens of oxygen-detesting existing on
Earth, and the greenhouse effect from the methane caused future consequence
15 March 2013
Refugees for Life in a Hostile Universe
CHZ: considered to be the region around a star where liquid water can persist on the
surface of a terrestrial, or Earth-like, planet for at least a fe
GEOLOGY MID TERM STUDY GUIDE part 1
Rocks and Rock Cycle
How are igneous rocks classified?
Intrusive: solidified from magma under the surface
Extrusive: solidified from magma at or near the surface
Felsic: higher in silica and aluminum (light in color)
EES 50 Final Study Sheet Part 2
What evidence is there for each of these extinctions?
Global cooling assoc
Deposits found that slowed
Global cooling assoc.
3 May 2013
An Extraterrestrial Impact by: Walter Alvarez and Frank Asaro
65 million years ago an asteroid or comet hit the earth at a high speed with an impact that created devastating disasters causing a great ext
26 April 2013
Fossils Versus Clock by: Anne D. Yoder
The article described the fossil record and the use of molecular phylogenetic.
Around 200 million years ago the giant continent Pangea split apart to form the va
EES 50 Final Study Sheet Part 1
What evidence is there for a snowball earth?
- Massive carbonate rocks (cap carbonates) rest directly on Sturtian, Marinoan,
and Gaskers tillites.
- Formed only where there are massive precipitation of calcium carbonate
EES 50 Final Study Sheet Part 3
What are the major types of plate boundaries? And a geologic feature.
1) Divergent boundaries where the two go in opposite directions
- Upper crust pulls apart, produces mafic magmas
-Bands of normal and reversed polarity t
14 March 2013
ND Representative wants to block EPA carbon dioxide Regs by Dale Wetzel
In North Dakota, Representative Earl Pomeroy wants limit the Environmental
Protection Agency from writing their own greenhouse gas