alkaline basalt meaning in English
碱性玄武岩
Examples
- The rock assemblages of the bayinbuluke formation are mainly alkaline basalt - thick andesite - alkaline rhyolite
火山岩岩石组合以碱性玄武岩粗安岩碱性流纹岩为主。 - It belong series of the alkaline basalt , and have character of island ocean in geochemistry and petrochemistry
岩石化学、地球化学特征表明，该组火山岩属碱性玄武岩系列大西洋型（钠质类型） ，具洋岛特征。 - At last the rhythm of yanshanian volcanic rocks is classified into three series such as alkaline basalt , hkca , calc - alkaline shoshonite . 4 . based on the study of rock series , assemblage of igneous rock , characteristic of geochemistry , trace effect of isotope , the yanshanian volcanic rocks of yanshan - liaoning area are mainly calc - alkaline series , which should belong to the products of near continental margin of intracontinental tectonic setting
3 、在火山活动节律的划分、区域对比的基础上，研究了各级节律火山岩的岩石学、矿物学、地球化学和同位素地质学特征，将研究区燕山期火山岩划分为碱性玄武岩系列、高钾钙碱性系列和钾玄岩系列。 - The alkaline basalts in southern hunan are suggested to have formed by small degrees of decompression melting of the asthenosphere mantle during the initial extension . the transitional ( the chebu gabbro ) and tholeiitic basaltic magmas were generated by relatively larger degrees of partial melting of the mantle
在裂谷初期，软流圈地幔的小比例部分熔融形成碱性玄武岩(湘南) ，在裂谷拉张作用比较强、地幔部分熔融比例比较大时形成赣南和湘南的过渡型(车步辉长岩)及拉斑质玄武岩。 - On the basis of the study on the petrology , trace element , and isotopic geochemistry , the primary magma of volcanic rocks can be divided into two series according to their originated rocks and degree of partial melting . one is the basanite - alkaline basalt - olivine tholeiite magma series , which are generated by partial melting from spinel iherzolite ; the other is nephelinite magma - alkaline picritic basalt magma , which are generated by partial melting of the garnet iherzolite
岩石化学、微量元素、同位素地球化学证据都表明，华北、华南地区的火山岩根据源岩和局部熔融程度的不同，可以分为两个原生岩浆系列：一个是源岩为尖晶石二辉橄榄岩，随着局部熔融程度的增加，形成的碧玄岩岩浆-碱性玄武岩岩浆-橄榄拉斑玄武岩岩浆；另一个是源岩为石榴石二辉橄榄岩，随着局部熔融程度的增加形成的霞石岩岩浆-碱性苦橄玄武岩系列。