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Title: A geologist looks at a piece of rock from Yosemite National Park under a microscope and sees tiny cr Post by: Fochaian on Apr 2, 2016 A geologist looks at a piece of rock from Yosemite National Park under a microscope and sees tiny crystals of olivine, pyroxene, and plagioclase feldspar. What process might have formed this rock?
A) melting underground, flowing to Earth's surface, and solidification above ground B) solidification underground, violent volcanic eruption of ash and solid rock C) both melting and crystallization underground D) melting underground, violent volcanic eruption, and solidification above ground Title: Re: A geologist looks at a piece of rock from Yosemite National Park under a microscope and sees tin Post by: Gursh on May 14, 2016 Content hidden
Title: Re: A geologist looks at a piece of rock from Yosemite National Park under a microscope and sees tiny cr Post by: Fochaian on May 18, 2016 This community is seriously awesome, thank you
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