铁镁质
- 网络Mafic;ferromagnesian
铁镁质-
δ34S多数与（超）铁镁质岩石接近，最大值小于且靠近现代海水。
Most of the δ 34 S datum are close to ultramafic rock and mafic rock , the biggest of all is less than and close to modern seas water 's.
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在胶北隆起南缘新太古代TTG质片麻岩中发育了大量的超铁镁质-铁镁质岩包体，呈NEE向群带状展布。
Lots of mafic-ultramafic enclaves are developed in Neoarchaean TTG gneisses in south of Jiaobei uplift with the trend of NEE .
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超铁镁质岩浆强烈活动与大规模喷溢；
Intense activity and outpouring of ultramafic magma ;
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石榴辉石麻粒岩主要产在北大别，以团块状，沿铁镁质超基性岩块走势分布。
Garnet-pyroxene granulites occur in the Northern Dabie mountain and are distributed as blocks and lens along the margin of mafic-ultrabasic rocks .