The trace element spider diagrams clearly display Nb-Ti negative anomalies, which is similar to the cases with the alkaline basalts in Grenada and L. Antilles. The andesite is linked to the basalt of Takezhale ophiolite belt.
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- 微量元素蛛網(wǎng)圖顯示其均具Nb-Ti負異常,與Grenada和LAntilles那種堿性玄武巖類(lèi)相當,且與塔克札勒蛇綠巖帶中的玄武巖有成因聯(lián)系。