【摘要】 实验室合成柯石英(Coesite)静态最小合成压力Pcos,min数值的大小与地球深度的关系,是判断地球板块"深折返"或"浅折返"假说的依据。本文结合石英-柯石英的静高压实验数据,分别阐述了地球板块"深折返"和"浅折返"假说,提出了"地表柯石英无需经过板块折返,而可以通过强地震波和/或较大的局域应力作用于地表石英而形成;对于地表中处于失稳的局域状态石英,即使不大的地震波和/或较大的局域应力也可能触发而起作用导致柯石英的形成"的新假说。更多还原

【Abstract】 The relation between Pcos,min values of Coesite synthesized in the laboratory and the depth of the earth is the basis for judging the hypothesis of "deep exhumation" and "shallow exhumation" of plate.This article,combining with the static high pressure experimental data of quartz-coesite,respectively expounds the hypothesis of "deep exhumation" and "shallow exhumation" of plate and puts forward the new hypothesis that the formation of Coesite in the earth’s crust does not need plate exhumation but by violent seismic waves and/or the impact of larger local stress on surface quartz,and as for instable local state quartz,even weak seismic waves and/or larger local stress may trigger and lead to the formation of Coesite.更多还原