单词	phosphorite
释义	phosphorite /ˈfɒsfərʌɪt / noun [mass noun] A sedimentary rock containing a high proportion of calcium phosphate.Under such conditions biogenic carbonate may be replaced by phosphorite (as off the coast of South Africa beneath the Benguela Current).... The late Neoproterozoic Doushantuo Formation in South China contains several exceptionally preserved biotas in its cherts, phosphorites, and black shales. Fossiliferous, thin marine shales, associated with biochemical precipitates such as glauconite and phosphorite, are common in transgressive systems tracts. Origin Late 18th century: from phosphorus + -ite1.
随便看	powermongering power nap powernet power of agency power of appointment power of attorney power oil power-operated power outage power pack power package power pile power pitcher power plant power play power point PowerPoint power pole power-political power-politician power politics power pop power popster power projection power rating

英语词典包含243303条英英释义在线翻译词条，基本涵盖了全部常用单词的英英翻译及用法，是英语学习的有利工具。