hornfels

hornfels的音标为["hɔ:nfels]，基本翻译为“角页岩”，速记技巧可以考虑为：horn（角）+ fel（岩石）→角页岩。

Hornfels的英文词源可以追溯到拉丁语中的“cornu ferrum”，意为“铁矿石的角”。它的变化形式包括复数形式“hornfelses”和过去式“hornfelized”。

相关单词：

Felsite：由岩浆岩或变质岩形成的岩石。

Felsic：在火成岩分类中，指硅含量较高的岩石，如花岗岩。

Hornfelsization：变质作用的一种类型，将软弱的岩石转化为角砾岩。

Hornfels：一种角砾岩，主要由石英和长石等矿物组成。

Felsic Metal：一种富硅的金属矿物，如霞石。

Felsic Rocks：指硅含量较高的岩石，如花岗岩等。

Felsic Jorner：一种火山岩，主要由石英和长石等矿物组成。

Felsic Tuff：一种火山碎屑岩，主要由石英和长石等矿物组成。

Felsic Tuffaceous Rocks：指主要由火山碎屑物质组成的岩石。

Hornfels是一种常见的变质岩石，它的形成过程是将软弱的岩石经过变质作用转化为角砾岩。它具有较高的硅含量和较低的铝含量，因此具有较高的熔点和硬度。在地质学中，它与不同的岩石类型和地质作用相关联，具有重要的研究价值。

常用短语：

1. hornfels rock

2. hornfels formation

3. hornfels ore

4. hornfels texture

5. hornfels mineralogy

6. hornfels classification

7. hornfels analysis

例句：

1. The ore is composed of hornfels, which is rich in iron and manganese.

2. The geologist is studying the hornfels texture of the rock to determine its composition and grade.

3. The mining engineer is analyzing the hornfels ore to determine its potential for production.

4. The geological map shows the location of the hornfels formation, which is rich in coal resources.

5. The orebody is classified as a low-grade hornfels, which poses a challenge for mining operations.

6. The mineralogy of the hornfels ore indicates that it contains high levels of copper and zinc.

英文小作文：

Hornfels is a type of metamorphic rock that forms from the alteration of igneous or sedimentary rocks under high-pressure and temperature conditions. It is characterized by its fine-grained texture and rich mineralogy, which includes iron, manganese, and other metallic elements.

Hornfels is commonly found in coalfields, where it serves as a host rock for coal deposits. It also occurs in some gold and base metal deposits, where it can act as a carrier rock for mineralization.

However, hornfels can also be a challenging rock type to mine due to its low-grade nature and complex mineralogy. Understanding its characteristics and mineralogy is crucial for effective mining operations.

In conclusion, hornfels is a versatile rock type that can serve as a host or carrier rock for various minerals and deposits. Understanding its characteristics and mineralogy is essential for effective mining operations and resource development.