| 单词 | porcellanitic |
| 释义 | > as lemmasˌporcellaˈnitic ˌporcellaˈnitic adj. Geology of the nature of or resembling porcellanite. ΚΠ 1960 J. B. Reeside & W. A. Cobban Stud. Mowry Shale 1/1 In the United States the deposits are largely the product of a long series of volcanic eruptions that are now represented by porcelanite, porcelanitic shale and sandstone. 1961 Trans. & Papers Inst. Brit. Geographers No. 29. 103 This zone is silicified in varying degree: locally, it is a grey-brown silcrete..; elsewhere, it may be porcellanitic. 1996 Sedimentary Geol. 107 45 Diagenetic precipitation of silica in diatomaceous beds through progressive sediment burial formed porcelanitic rocks. < as lemmas |
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