英语词汇“black shale”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

单词	black shale
释义	DictionarySeeshale black shale black shale [¦blak ′shāl] (petrology) Very thinly bedded shale rich in sulfides such as pyrite and organic material deposited under barred basin conditions so that there was an anaerobic accumulation. Also known as biopelite.
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