目的:分析菱壳粉末中挥发性成分。
Objective: To analyze the constituents of essential oil from the skin of water caltrop.
菱铁矿等含铁碳酸盐在风化作用中向褐铁矿转化;在古风化壳中褐铁矿变为赤铁矿。
Under weathering carbonates, such as siderite are usually turned into limonite which finally occur as hematite in the Weathering crusts.
菱铁矿等含铁碳酸盐在风化作用中向褐铁矿转化;在古风化壳中褐铁矿变为赤铁矿。
Under weathering carbonates, such as siderite are usually turned into limonite which finally occur as hematite in the Weathering crusts.
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