“feldspathic graywacke”的概念、定义、翻译、参考文献-科学参考

单词	feldspathic graywacke
释义	feldspathic graywacke [fel`spath·ik `grā´wak·ǝ] ^PETROLOGY Sandstone containing less than 75% quartz and chert and 15-75% detrital clay matrix, and having feldspar grains in greater abundance than rock fragments. Also known as arkosic wacke; high- rank graywacke.
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