tholeiitic series

They were derived from different magma series: the gabbro was derived from tholeiitic magma series with higher TiO_2, REE abundance and Fe~ ( 3+)/ Fe ( 2+) ratio;

它们分属两个不同的岩浆系列：辉长岩属拉斑系列，TiO2，Fe~（3+）/Fe~（2+）和REE丰度较高；

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Their original rocks are volcanic rocks, epicontinental clastic sedimentary rocks, and ophiolite of volcanic and island arc tholeiitic series or calcium alkali series.

其原岩岩石类型有火山岩，陆缘碎屑沉积岩，火山、岛弧拉斑系列或钙碱系列火山岩、蛇绿岩等。

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The basic volcanic rocks of the first cycle belong to the alkali basalt magma series and those of the second and the third cycles the tholeiitic magma series.

第一旋回基性火山岩属碱性系列，第二、三旋回基性火山岩属拉斑玄武岩系列。

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The magma originated from the upper mantle and belongs to the tholeiitic series which has undergone immiscible separation of metal sulfide.

岩浆起源于上地幔，属于拉斑玄武岩系列，发生过金属硫化物的熔离作用。

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The basic end-member of the bimodal volcanics can be divided to alkaline and sub-alkaline series, and the sub alkaline series can be subdivided to calc-alkaline and tholeiitic series.

基性端员属碱性系列和亚碱性系列，亚碱性系列又可分为钙碱性系列和拉斑玄武岩系列。

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They include mainly high-alumina basalt, basaltic andesite, a few of andesite and dacite as well, belonging to calc alkaline series but somewhat tholeiitic series in the early stage.

它们属于同一钙碱性岩浆演化系列，其中高铝玄武岩是其它火山岩的母岩。

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The basic rocks, which belong to alkali and tholeiitic magma series, enriched in LREE and LIL. The magmatic source of basic volcanic rocks was enrichment mantle being analogous to oceanic island basalts sources.

基性火山岩有磁性玄武岩与拉斑玄武岩两个岩浆系列，且富集LREE与LIL，其岩浆源区为与洋岛玄武岩源相似的富集地幔柱源。

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