volcanic rock

The deformation belts are formed by Late Carboniferous rocks, mainly mylonitization volcanic rocks and volcanic clastic sedimentary rocks.

变形带由下石统干墩组组成，为一套糜棱岩化山岩、山积岩。

We do the thermoluminescence research systemly for deep volcanic rocks section, this will possibly demarcate eruptible gyration and evolvment character.

4、对巨厚的山岩剖面进行系统的热释光研究,可能标定其喷发旋回和演化特。

The present application of the nuclear log to the studies of the volcanic rocks and superpressure metamorphic rocks is outlined.

最后略述当前成岩和超高压变质岩地层研究中核测井的应用。

Volcanicity was violent during the Early Carboniferous in Santanghu region.The volcanic rocks consist of basalts,andesites and dacite liparite,with andesites playing the main part.

三塘湖地区早石山活动强烈，发育以安山岩类为主的玄武岩、安山岩、英安流纹岩的岩石组合。

The volcanogenic deposits hosted in differential yolcanic rock series and cogenetic deposits hosted in undifferential baste volcanic rock series have been divided and studied in this paper.

笔者通过研究，分出了分异山岩系中的山成因矿床和未分异基性山岩系中的共生矿床，认为前者的金属聚集与岩浆分异有密切关系。