变质砂岩

研究表明，矿源主要源于花岗岩岩体，其次来源于钙镁质碳酸盐岩、变质砂岩等围岩。北北西向断裂是主要控岩构造，从而也是间接控矿构造。

The study show that the main source of ore is granite , partly from the surrounding rock , which consists chiefly of the calcium magnesium carbonatite and metasandstone .

这种效应广泛存在，其发育程度受到岩石类别的控制。在试验所用的4种岩石中，板岩和千枚岩的波速比的各向异性明显，而糜棱岩和变质砂岩则不甚发育。

The anisotropic effect is controlled by the lithologic characteristics , and apparent for slate and phyllite , while not for the other two kinds of rocks , mylonite and metasandstone .

金矿化以含金黄铁矿为特征，产出于盖县组变质砂岩段厚层状变质砂岩、薄层状变质砂岩和石墨化片岩的互层带中，矿体产状与地层一致；

The gold metallogeny is characterized by auriferous pyrite and occurred in the alternating layer of heavy-layer metasandstone , flaggy metasandstone and graphitization schist .

采用显微观测法和双曝光全息干涉法研究了单轴压力作用下岩石损伤特征，得出了变质砂岩变形与损伤演化的关系。

The characteristics of rock damage development under uniaxial compression was observed by using microscope and double-exposure holographic interferometry . The relationship between metamorphic rock deformation and its damage growth is presented .

元素地球化学研究表明：广西龙胜地区上元古界浅变质含砾砂岩、细砂岩、粉砂岩及大理岩的成矿元素丰度普遍较高，具有显著浓集和后期叠加作用；

Study of element geochemistry shows that the Late proterozoic light metamorphic gravel bearing sandston , fine sandstone , siltstone and marble in Longsheng area , Guangxi , are commonly higher in element abundance , indicating obvious concentration and later superposition ;

D型是变质的长石石英砂岩。

Type D has only one sample , which comes from the metamorphosed arkose sandstone . coarse to fine-grained quartz-syenite ;

根据典型剖面研究，该套浊积岩系由一套轻微区域变质的中细砂岩、粉砂岩、粉砂质泥岩组成，局部夹碳酸盐岩。

According to the study on the typical section , the turbidite series is composed of a set of medium-fine sandstone , siltstone and silty mudstone with partly intercalated carbonate rocks .