甘肃内蒙古北山地区古生代地壳演化-西北地质-西北地调 关键词： 北山地区,古生代,板块构造体制,造山作用 [gap=1538]Key words： Beishan area, Palaeozoic, plate tectonic system, orogenesi
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这一构造-岩浆作用暗示着松嫩地块北缘在新元古代板块构造体制就开始运行。
The tectonic magmatism suggests that the plate tectonics had operated in the north margin of Songnen Massif in the Neoproterozoic.
北秦岭侵入岩带与同时代的蛇绿岩带有力地证明，北秦岭晋宁运动的构造体制是板块体制。
The intrusive rock belt and the ophiolite belt of the same time together demonstrate that the tectonic system of the North Qinling during the Jinning movement is plate tectonic system.
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