1、

Early Mesozoic OIB type alkaline basalt in central Jiangxi Province and its tectonic implications

赣中地区早中生代OIB碱性玄武岩的厘定及构造意义

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2、

According to the characteristics of trace elements and isotope, the source of the basalt is similar to the OIB source.

微量元素和同位素特征显示,玄武岩起源于与洋岛玄武岩源区相似的富集地幔源。

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3、

Element geochemical modelling indicates that both alkaline OIB and E-MORB samples were generated from the enriched mantle source.

元素的地球化学模拟表明,碱性OIB和E-MORB样品是来自较原始地幔还要富集的地幔源区。

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4、

The MORB and OIB of the Sanjiang area were generated from the depleted mantle and the primitive mantle respectively.

它们均属南半球地幔域。亏损地幔和近原始地幔分别是三江地区MORB和OIB的源区物质。

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5、

The study indicates strong composition differences between noble gases from MORB and OIB supporting two-layer mantle structure. Mantle degassing process is controlled mainly by SCD model.

研究表明,MORB源和OIB源玄武岩稀有气体组成差异强烈支持地幔双层结构的存在,地幔脱气过程主要受溶解度控制脱气模式(SCD)控制;

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6、

And ( 4) that the volcanic rocks mentioned above are ocean-island basalt ( OIB).

由岩石化学成分判别的结果表明,灰岩块体之下的火山岩为洋岛火山岩。

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7、

Based on more geochemical signatures, two types of basalt are recognized, namely, ocean island basalt ( OIB) and mid ocean ridge basalt ( MORB).

进一步的地球化学研究表明,这套玄武岩为洋岛型玄武岩(OIB)和洋中脊型玄武岩(MORB)的组合。

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8、

Some of basic rocks contaminated by the crust materials could be formed by the AFC process, but the magma source are N-MORB compostion, rather than alkaline OIB or E-MORB compostions.

而受到地壳组分混染的基性岩,部分可能是通过AFC作用形成,但是其岩浆源非本研究中的碱性OIB或E-MORB样品,而是类似于N-MORB成分。

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