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27 terms

Exam 3 Geo 101 Everything Else

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Batholith
Intrusive Volcanic Feature: 40 Square miles or more
Stock
Intrusive Volcanic Feature: Less than 40 square miles
Lacolith
Intrusive Volcanic Feature: Like a stock but doesn't melt the top layers
Dike
Intrusive Volcanic Feature: Wall of magma solidified (Devil's Slide)
Sill
Intrusive Volcanic Feature: Magma displaced laterally
Evidence of Continental Drift
1. Puzzle-like fit
2. Similar fossils in areas
3. Similarities in rock and mountain formations
Evidence of Seafloor Spreading
1. Paleomagnetism
2. Relative dating of rocks show same as symmetrically
Pacific Plate
NW
Nazca Plate
E
N. American Plate
W
S. American Plate
W
African Plate
E
Eurasian Plate
E
Indo-Australian Plate
N
Juan de Fuca Plate
E, subducting under N. American plate
Subduction zone islands
Aleutians
Salt Wedging
Water enter, salt expands, cracks are made (Similar to Frost Wedging)
Speleotherm
Cave features
Silicate
Oxygen and Silicon
Oxide
Oxygen and any element but Silicon
Sulfate
Sulfur w/ another element
Halide
Salty minerals
Native elements - noncompounding
Gold - Silver
Granite
Gneiss
Sandstone
Quartzite
Limestone
Marble
Shale
Slate