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Updated: Jul 5, 2025

$Synchrotron X-ray Microdiffraction and Fluorescence Imaging of Mineral and Rock Samples$

Synchrotron X-ray Microdiffraction and Fluorescence Imaging of Mineral and Rock Samples

Published on: June 19, 2018

在现代巨型贝 (Tridacna squamosa和Hippopus hippopus) 中的微观结构和晶体纹理数据

Kimberley Mills¹, Duncan D Muir¹, Anthony Oldroyd¹

¹Cardiff University, School of Earth and Environmental Sciences, United Kingdom.

|January 16, 2024

概括

来自珊瑚三角的巨型贝揭示了详细的微观结构和结晶学数据. 这项研究增强了对外生物矿物化的理解,并优化了对生物碳酸盐的电子反射散射衍射 (EBSD) 方法.

科学领域:

海洋生物学海洋生物学
地质地质地质地质地质地
材料科学材料科学材料科学

背景情况:

巨型贝 (Tridacna squamosa,Hippopus hippopus) 拥有复杂的阿拉贡岩结构.
的内部层提供了保存完好的生长和生物矿物化的记录.
了解外微观结构对于古气候和古环境重建至关重要.

研究的目的:

提供关于巨型内层微观结构和晶体结构的新数据.
详细介绍扫描电子显微镜 (SEM) 和电子反射散射 (EBSD) 分析生物碳酸盐的优化方法.
提供一个数据集,有助于理解巨生物矿物化和贝生长.

主要方法:

贝被纵向切割,并以薄片的形式准备好.
扫描电子显微镜 (SEM) 用于分析外微观结构.
基于SEM的电子反射散射衍射 (EBSD) 用于定量晶体学定向和纹理分析.

主要成果:

描述了内部外层的详细微观结构和晶体结构.
确定了优化的EBSD数据采集和处理参数.
数据包括带对比图像,定向图和多重均密度 (MUD) 值.

结论:

该数据集增强了对巨贝生长和生物矿物化过程的理解.
该研究提供了一种方法框架,用于改进生物原材料中的EBSD分析.
这项研究支持未来对软体动物的古老环境意义的调查.

关键词:

阿拉戈尼特是阿拉戈尼特的一种.两贝的外是双的珊瑚礁中的珊瑚礁欧洲银行股票监督管理局 (EBSDD)微观结构的微观结构这就是SEM SEM.质地质地质地

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