Brucite in Carbonate Secreted by the Red Alga Goniolithon sp
Brucite in Carbonate Secreted by the Red Alga Goniolithon sp
复制标题
红藻 Goniolithon sp 分泌的碳酸盐中的水镁石
作者：
Robert F. Schmalz
x射线衍射研究、化学分析、红外吸收研究和核磁共振波谱分析表明，红藻Goniolithon sp分泌的骨骼碳酸盐中存在水镁石矿物Mg(OH)2。碳酸盐的电子探针检查表明，水镁石集中在骨骼结构的某些区域。这些结果解释了早期研究者观察到的异常高溶解度和大细胞尺寸的“碳酸盐”。
X-ray diffraction studies, chemical analyses, infrared-absorption studies, and nuclear-magnetic-resonance spectrum analysis demonstrate the existence of the mineral brucite, Mg(OH)2, in the skeletal carbonate secreted by the red marine alga Goniolithon sp. Electron microprobe examination of the carbonate shows that the brucite is concentrated in certain areas of the skeletal structure. These results explain the anomalously high solubility and large cell size of the Goniolithon "carbonate" observed by earlier investigators.