摘要
竹园沟—下坪磷矿位于宜昌磷矿田北部中磷层富集区,震旦系下统陡山沱组胡集段下亚段地层中,主要发育中磷层二矿层,次为中磷层一矿层。矿石自然类型主要为云岩条带状磷块岩。初步估算Ph22＋Ph21矿层333＋334资源量达4.5亿t,为大型化学沉积磷块岩矿床。
Zhuyuangou-Xiapingphosphate rock is located in enrichment area of middle-phosphate-bed in the northern of Yichang phosphorus ore field,Huji sub strata of Doushantuo group of Sinian system.Natural types of ores are mainly banded dolomite phosphate rock.333＋334 ore reserves of Ph22＋ Ph21 ore seam up to 4.5 tons,is the large-scale chemical sedimentary phosphorite deposit.
出处
《资源环境与工程》
2016年第2期165-170,共6页
Resources Environment & Engineering
关键词
磷块岩
矿层特征
矿石结构
phosphate rock
characteristics of seam
ore structure
