涑水岩群残存于西姚片麻岩之中，是由斜长角闪岩、磁铁石英岩、黑云变粒岩、钙质片岩和白云质大理岩组成。
Shushui rock group remains in Xiyao gneiss, and made up of amphibolite, magnetite quartzite, biotite granulite, calc-schist and dolomitic marble.
通过对次生成岩磁铁矿产状分析及已知区实测资料分析总结出陕北富油区上方三种磁异常模式。
We got three types of magnetic anomalous patterns in the northern Shaanxl by means of analysis of diagenetic-magnetite occurrence and surveying data.
接触部位形成角岩、矽卡岩化，并发生磁铁矿、硫铁矿及金矿化。
Hornfels, skarnization, troilite and gold mineralization were formed in their contact segment.
区内沉积岩和花岗岩磁性微弱或无磁性，与硼矿密切相关的矽卡岩及硼矿石中磁铁矿含量较高。
The sedimentary rocks and granite in the region are of very weak or no magnetism, while the boron ore and skarn with close relation to boron mineralization are of quite high content of magnetite.
测区内发现磁铁石英岩残留体、粗面斑岩、大理岩、钠长岩等新岩石类型。
The new type of rocks such as the residuum of magnetite quartzite, trachyte porphyry, marble and sodaclase are found in the survey area.
在变质作用中，菱铁矿在较高温度和压力下转变成磁铁矿，其他含铁碳酸盐转变成夕卡岩。
During metamorphization the siderite is transformed into magnetite under the action of high temperature and high pressure, while other Fe-bearing carbonate rocks are changed in to skarns.
研究温度变化对磁铁石英岩和赤铁石英岩微结构的影响。
The effect of temperature on the structures of two kinds of ore is studied.
矿石工业类型为需选弱磁性铁矿石，主要成因类型为磁铁黑云片岩型、磁铁变粒岩型。
Its industrial types of ore bodies are weak magnetic type which should be chosen. Its ore-forming types are magnetic biotite schist and magnetic granulite type.
磁铁矿片麻岩的泥质矿物特征和碎屑锆石的存在表明，原岩不是一个纯化学沉积体。
The pelitic mineralogy of the magnetite gneiss and presence of detrital zircon demonstrate that the protoliths were not a pure chemical sediment.
大桥磁铁硫化物型铅锌矿床是一新的矿化类型，可细分为磁铁硫化物和层状矽卡岩两种亚型。
The Daqiao magnetite-sulfide type Ph-Zn deposit, which is a new Ph-Zn type, can be subdivided two series: magnetite-sulfide and banded skarn.
大桥磁铁硫化物型铅锌矿床是一新的矿化类型，可细分为磁铁硫化物和层状矽卡岩两种亚型。
The Daqiao magnetite-sulfide type Ph-Zn deposit, which is a new Ph-Zn type, can be subdivided two series: magnetite-sulfide and banded skarn.
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