非洲大西洋陆棚磷块岩的岩石学特点

• 作 者: Г.С.哈林 黄宝亲
• 出 处: 地质地球化学
• 发表日期: 1978年03期
• 关键词: 磷块岩 岩石 大西洋 新第三纪 泛分布 胶结物 碎屑 有孔虫 砂岩 磷酸盐化

近年来发现,在非洲陆棚上广泛分布着晚自垩世、老第三纪和新第三纪磷块岩(1971; Parker, Siesser,1972等)。在该陆棚上,早在上一世纪末就已发现了少量的磷块岩(Murray, Renard, 1891; Collet,1905等)。我们从1961年开始,在不同时期采集了磷块岩和与其伴生的岩石标本,并作了研究(图1)。

In recent years, it has been found that Late Cretaceous, Old Tertiary and Neogene phosphorites (1971; Parker, Siesser, 1972, etc.) are widely distributed on continental shelf. On this shelf, a small amount of phosphorite had been found as early as the end of the last century (Murray, Renard, 1891; Collet, 1905, etc.). Since 1961, we collected phosphorite and associated rock specimens at different times and studied (Figure 1).