符合的藏品

共找到 9 筆符合的資料

中文名稱：砂岩(風化)

' weathering" 臺灣大學地質科學典藏數位化計畫地質分佈：NULL 產狀：2~0.05mm的碎屑含量達50％以上者，稱為砂岩。形成於多種地質環境中，可由其礦物組成及沈積構造判斷母岩來源、搬運過程及.....more

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weathering 臺灣大學地質科學典藏數位化計畫產狀：板塊隱沒後的熔融岩漿，黏稠度相當高，且含大量氣體，故造成威力強大的噴發情形，而冒出地表的中性岩漿冷卻、凝固形成安山岩，為台灣最常見、分佈最廣.....more

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weathering, whose strength is greater to marcasite than to pyrite. Hence, there is by far less.....more

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be identified according to the different colors, silver and light brass yellow. After weathering.....more

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tarnishing to copper green when exposed to the air and weathering. Chalcopyrite and pyrite are much alike.....more

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occurs in massive or irregular form. Pure bornite has the color of reddish bronze; after weathering.....more

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specific gravity, and lower hardness. When exposed to the air and weathering, cinnabar decomposes.....more

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, purple or brown. Weathered cordierites may carry shades of green, and if the weathering continues.....more

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gold mining areas. 　　Gold deposit or minerals after weathering is likely to be disintegrated into sand.....more

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