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.

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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.

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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.

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