原来微粒的方 解石重结晶成显晶质粗晶;岩石呈等粒变晶结 构,多种颜色,以白色最常见。 角岩 (hornfels ) :富泥质岩石,在温度增高, 压力不高条件下变成的岩石,有时可见有新生 的黑云母、红柱石等矿物。
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hornfels facies [岩] 角页岩相
hornfels texture 角页岩构造 ; 角岩结构
calc-silicate hornfels 钙质硅酸盐角岩 ; [岩] 钙质硅酸盐角页岩 ; 钙硅角岩
pelitic hornfels [岩] 泥质角页岩
quartzo-feldspathic hornfels 石英长石质角岩
Cordierite hornfels 堇青石角页岩
N a hard compact fine-grained metamorphic rock formed by the action of heat from a magmatic intrusion on neighbouring sedimentary rocks 角页岩 (Also called hornstone)
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