岩石圈形成后的去气作用（Degassing after the formation of lithosphere）.docVIP

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岩石圈形成后的去气作用（Degassing after the formation of lithosphere）.doc

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岩石圈形成后的去气作用（Degassing after the formation of lithosphere）

岩石圈形成后的去气作用（Degassing after the formation of lithosphere） Degassing after the formation of the lithosphere, does.Txt45 want to take a bath? Dont wait outside for rain; want to succeed? Dont wait for the arrival of the opportunity. How long can a beautiful flower be plucked? How long can you indulge in a moment of indulgence? A willing man is always striving for the goal of life. Its young boy crazy, Miao Kunlun, Lvliang smile; sword for several years, this will try to edge. Pretentious is not desirable, but not improperly belittle oneself. 24 of the principles of Earth Science: degassing after the formation of lithosphere Guangdong Ocean University Yong Yan Liao (e-mail: rock6783@126.com) Last time, we analyzed the degassing before the formation of lithosphere. Here we analyze the degassing of lithosphere formation. 1 Overview After the formation of the original crust, the earth still has degassing effects. Due to the earths lithosphere form outside the shell, the shell gas can be discharged, only in the shell rupture or for some reason, negative pressure cavity can occur. When the temperature of the earths interior is still relatively high, that is to say, the earth is liquid except the lithosphere. The formation or ablation of polar or unipolar glaciers, causing isostatic expansion and contraction as a result of isostatic adjustment. When a glacier forms, the earth expands and the earths crust breaks where it is most likely to form cracks (such as mid ocean ridges). A sudden drop in the earths pressure results in the accumulation of large amounts of inland gas. At this time, the mid ocean ridge, in addition to the eruption of a large number of basalt magma, but also the eruption of large amounts of gas. When glaciers melt, the earth shrinks and forms island arcs and geosyncline. In the course of the formation of island arc and geosyncline, negative pressure cavity is formed. A large amount of gas is collected at the negative pressure chamber. When the lithosphere