酸性火成岩

基于实验岩石学成果，论述了无负Eu异常的中酸性火成岩类（正长岩、二长岩、石英闪长岩类）形成于加厚陆壳底部（或山根带）。

Based on the data from experimental petrology , the acid-intermediate igneous rocks ( synitic , monzonitic , QY-dioritic ) without negative Eu-anomaly seem to have formed at the base of thickened crust or in the mountain root zone .

中酸性火成岩岩石化学计算若干问题的讨论及解决方案

A discussion on some problems concerning Petrochemical calculations of acid - Intermediate igneous rocks and their solution approach

南方所产高岭土在成因上则与花岗岩等酸性火成岩有关，多属风化残积型与热液蚀变型。

The origin of Kaolins in the South China is related to acid igneous rocks , such as granite etc , and most of them belong to weathering ( residual ) types , or to hydrothermal alteration types .

主量和微量元素分析表明，研究区中生界中性和酸性火成岩形成于挤压背景下的岛弧环境，中生界和新生界基性火成岩形成于拉张背景下的初始裂谷环境。

The major and trace elements analysis showed that the Mesozoic intermediate and acid rocks in the study area were formed in the compressional island arc environment , the Mesozoic and Cenozoic basic igneous rocks formed in an extensional initial rift .

论酸性－中酸性火成岩中包体的分类与命名

Classification and nomenclature on the enclaves in acidic - Intermediate acidic igneous rocks