Compare and contrast cratons and mobile belts. What types of rocks are they composed of and what are the relative
ages of these rocks? Provide specific examples of cratons and mobile belts. What will be an ideal response?
Cratons are relatively stable and immobile cores of continents and commonly are composed
of a crystalline Precambrian shield surrounded by a platform covered by Phanerozoic
sedimentary rocks. Mobile belts, in contrast, are elongated areas of mountain building that
are located along the margins of continents and have recent marine sedimentary rocks that are
deformed and intruded by igneous rocks.
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In 1979, a power plant at this nuclear facility experienced a loss of coolant that contributed to a partial meltdown of the reactor core
A) Fukushima B) Three Mile Island C) Darlington Three Island D) Guangdong-2 (Wangong-2) E) Chernobyl (Chornobyl)
What is magmatic differentiation? How might this process lead to the formation of several different igneous rocks from a single magma?
What will be an ideal response?
Mangrove swamps tend to occur at higher latitudes
Indicate whether the statement is true or false
The jet stream takes place at high altitudes and produces very high wind speeds.
a. true b. false