贝壳珍珠层微结构及成因理论

永颉同心

摘　要：珍珠层是由多边形文石板片和少量有机质(<5％)组成的兵微层理的结构单元，可分为砖墙型和堆垛型两种类型。珍珠层中文石板片晶体的结晶学方向、粒径及形统等严格受到控制，呈现出高度有序的结构。珍珠层的形成与软体动物的生理活动有关，目前珍珠层的成固理论主要有；与外套膜的外上皮细胞年龄有关；细胞内结晶细胞外组装说；隔室说；矿物桥说及模板说等。
关键词：贝壳珍珠层；微结构；成因理论
作者简介：张刚生 男 34岁 博士 矿物学专业 研究方向：生物矿物学
作者单位：张刚生（中国科学院广州地球化学研究所，广州 510640）　
　　　　　谢先德（中国科学院广州地球化学研究所，广州 510640）　
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