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西藏大竹卡蛇绿岩中地幔橄榄岩铂族元素（ＰＧＥ），总量为 ２８．３７－５０．６７ｎｇ／ｇ，比原始地幔和世界范围内一些典型蛇绿岩中地幔橄榄岩及阿尔卑斯型地幔橄榄岩偏高，ＰＧＥ分布型式也不同于部分熔融残留成因地慢橄榄岩中通常所观察到的负斜车型或平坦型，而以ＰＧＥ总量高，Ｐｔ，Ｐｄ，Ｒｕ富集及“正倾斜型”或“燕子型”分布型式为特征，反映本区上地幔及其过程的特殊性．Ｐｔ和Ｐｄ以及Ｃｕ，Ａｕ，Ｃｓ，Ｒｂ，Ｂａ，Ｔｈ，Ｕ，ＬＲＥＥ等不相容组分的富集暗示本区残留地幔橄榄岩遭受了含高度不相容元素的熔体／流体的渗透混合．
The PGE of the mantle peridotite in the Dazhuka ophiolites of Tibet is 28.37-50.67ng / g, which is higher than that of the original mantle and some typical ophiolite mantle peridotites and Alpine mantle in the world The peridotite is high and the PGE distribution pattern is also different from that of negative-inclined models or flat types generally observed in the slow peridotites with partial melting remnant. However, with the high total PGE, enrichment of Pt, Pd and Ru and “positive tilt Type ”or“ swallow-type ”distribution pattern, reflecting the particularity of the upper mantle and its processes in this area. The enrichment of Pt and Pd and the incompatible components such as Cu, Au, Cs, Rb, Ba, Th, U and LREE suggests that the residual mantle peridotite in this region is exposed to the melt / fluid infiltration of highly incompatible elements mixing.