Ophiolite type belongs to products of distinct period and developing stage oceanization of Kazakstan plate.
蛇绿岩型岩体系哈萨克斯坦板块不同时期和不同发展阶段的大洋化过程产物。
In early Ordovician North Qilian region again stretched and suffered second oceanization, up to middle Ordovician a mature ocean basin with a trough-arc-basin system already formed.