1) intermediate igneous rocks
中性火成岩
2) intermediate-basic igneous rocks
中基性火成岩
1.
The author believedthat the origin of ilvaite relate to the intermediate-basic igneous rocks and its disintergrate relateto the paticipate in of borium, through the comparison of geological features between theShangqing ilvaite-rich iron deposit,Qinghai,and the Makeng ilvaite-bearing iron deposit, Fu-jian.
通过富含黑柱石的青海省双庆铁矿区与仅含少量黑柱石的福建省马坑铁矿区矿床地质特征的对比,认为矿床中黑柱石的产生与中基性火成岩的参与有关;黑柱石的解体与硼的参与有关。
3) Intermediate-acid igneous rock
中酸性火成岩
1.
There fore, it is very significant to study the evolution and formation of the Tarim Basin- Through systematic investigations of field geology, drilling records, geophysical results and isotope geology, the occurrence of a Permian intermediate-acid igneous rock zone in the northern part of the Tarim Basin has been confirmed.
研究发现塔里木盆地北部发育一条二叠纪中酸性火成岩带，岩性主要有中酸性的安山岩、英安岩、流纹岩、花岗闪长岩、花岗岩、花岗斑岩、凝灰岩等，同位素年代为247。
4) intermediate igneous rocks
中性火成岩<地>
5) acidic-intermediate acidic igneous rocks
酸性-中酸性火成岩
6) mafic igneous rocks
基性火成岩
1.
Geochemical investigations on late Mesozoic(early Cretaceous)mafic igneous rocks from both areas separated by Tan -Lu Fault show clear geochemical and isotopic zonation.
华北陆块晚中生代(早白垩世)基性火成岩沿着郯庐断裂带存在显著的元素-同位素地球化学分区。
补充资料：中性
1.谓不表示性别。 2.化学上指既不呈酸性又不呈碱性的性质，如纯水的性质。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条