铬铁矿及(或)菱镁矿化通常是与蛇绿岩有关.Chromite and / or magnesite mineralization is usually related to the ophiolites.来自同位素年龄鉴定的证据指出,绿岩带在年龄上彼此变化相当大.Evidence from isotopic dating suggests that the greenstone belts vary considerably in age...
通过微观分析,在鄂尔多斯盆地白垩系钻孔岩样中发现方沸石类矿物.Analcite mineral was found rock specimen of cretaceous system in the Ordos Basin via using micro - analysis.柱状的钠沸石在方沸石上, 有著像是放射状的晶簇.与内含赤铁矿而成红色的杆沸石.Prismatic crystals of Natrolite on Analcim...
衣着则会受到微尘 、 羽毛和粪便的污染.Clothing can also become contaminated with dust, feathers, and excrement.粪便的成分及结构在后面一章再讨论.The composition and structure of the casts will be discussed in a later chapter.鸡舍的清洁设备和运输工具通常都会有垫料和粪便的积垢.Poul...