Diyanqinamu basalt emplaced at ~260 Ma and located at the eastern part of Central Asian Orogenic Belt(CAOB). Geochemical results show that these basalts are enriched in LREE and depleted in HREE with distinct positive Eu anomaly and minor/no Ce anomaly. In the view of trace elements composition normalized to primitive mantle, they are also enriched in LILES(such as Rb, Ba and Th) and depleted in HFSES(such as Nb, Ta, Zr and Hf). In addition, they are consistent with relatively high Nb/Ta ratios(>17), low in...
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