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Geology Final (Past exams)
Terms in this set (114)
List the Earth's 4 major spheres
geosphere, biosphere, atmosphere, hydrosphere
About what percent of the Earth's total water is in the ocean?
According to geological science, what is the age of the Earth?
4.6 billion years
In some minerals, there is a tendency to break along planes of weak bonding. This is called _______
Three main type of rocks that make up the rock cycle
igneous, sedimentary, metamorphic
three types of tectonic plate boundaries
convergent, divergent, transform
typical rate of seafloor spreading
5 cm per year
Lava that erupts onto the Earth's surface produces what type of igneous rocks?
texture associated with fast rates of cooling, resulting in small crystals
5 characteristics that define a mineral
- orderly crystalline structure
- naturally occurring
- definite chemical composition
most abundant mineral group in Earth's crust
What type of plate boundary is the mid-Atlantic Ridge?
What common silicate mineral exhibits conchoidal fracture?
A dike is what type of intrusion?
Process where only a small percentage of mantle rock melts in most tectonic settings
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