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硅質(zhì)巖的礦物成分以微晶石英為主,少量玉髓,混有不等量的黏土礦物、碳酸鹽礦物、錳質(zhì)和磷質(zhì),包括硅質(zhì)巖、鈣質(zhì)硅質(zhì)巖、含泥硅質(zhì)巖、泥質(zhì)硅質(zhì)巖、錳質(zhì)硅質(zhì)巖、含錳泥質(zhì)硅質(zhì)巖、含磷泥質(zhì)硅質(zhì)巖、(含)放射蟲硅質(zhì)巖、含硅質(zhì)巖、 ......（本文共 393 字 ）     [閱讀本文] >>