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辽东古元古代侵入岩广泛分布于太子河凹陷以南的营口、宽甸、丹东、桓仁等地。本文概述了侵入岩地质、岩石、岩石化学及地球化学等特征 ,探讨了其源区有幔源型、壳幔混源型、壳源型的属性。岩浆演化规律为:造山前富 Mg质玄武岩、拉斑玄武岩系列与钙碱系列双向演化;造山期由中酸性→酸性,由钠质→钾质;造山后崩塌期由基性→中性→酸性,由拉斑玄武岩系列→钙碱系列,由钠质→钾质。构造岩浆大陆动力学演化过程和模式为造山前毗芦寺超基性-基性杂岩侵喷就位,造山早期条痕状花岗岩同构造底劈侵位,造山主期片麻状黑云-二云母二长花岗岩同构造中高位侵入,造山晚期块状花岗闪长岩-二长花岗岩组合高位侵入,造山期后构造崩塌期辉长-辉绿岩组合、闪长岩-斜长花岗岩-钾长花岗岩组合伸展就位。
Paleoproterozoic intrusions in Liaodong are widely distributed in Yingkou, Kuandian, Dandong, Huanren and other places south of Taizihe depression. In this paper, the characteristics of intrusive rocks such as geology, rock, rock chemistry and geochemistry are summarized. The characteristics of mantle, crust-mantle mixed source and crust source are discussed. The magmatic evolvement law is: two-way evolution of pre-orogenic Mg rich basalts, tholeiite basalt series and calc-alkaline series; moderate or acid → acidic, sodium → potassium; orogenic → neutral → acidic , By tholei basalt series → calcium series, from sodium → potassium. The tectonic magmatic continental dynamics evolution process and mode are that the Pailusi ultramafic-mafic complex was invaded and invaded before the orogenic anomations, that is, Permian-granodiorite intrusive high-level intrusive, high-level intrusive granitic diorite-monzogranite assemblage at late stage of orogenic or post-orogenic tectonic collapse-gabbroic-diabase assemblage, diorite-plagiogranite- Potash combination of granite stretching in place.