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金沙江缝合带反映三叠纪时羌塘地块北缘向南,潜没到松潘-甘孜地块下方。在侏罗纪,拉萨地体与羌塘地块的南缘沿班公湖缝合带熔合。[1]:Geologic setting, p. 475这一缝合带也是特提斯洋的闭合线,使羌塘地块变成了巨大的背斜。[2]:Geologic setting, pp. 32–33
羌塘地块目前海拔约5km,不过其抬升的具体时间存在争议,从上新世-更新世(3–5 Ma)到始新世(35 Ma)的估计都有。后者的估计基于高原第一次遭受剥蚀作用的时间。[2]:Introduction, pp. 31–32
羌塘地块相关(由南向北)
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