The mafic-ultramafic complex and volcanic rock series from Yanbian and Shimisn,westernSichuan,China are recognized as a rare Proterozoic high-Ti ophiolite suite in the world.

• 川西盐边、石棉两地的基性超基性杂岩和火山岩系为世界上少见的元古代高钛到蛇绿岩，这意味着该区曾经历过海洋化过程和板块运动。