Dolomite microstructures and reaction mechanisms of dolomitization on the triassic Latemar buildup, Dolomites, northern Italy

被引：0

作者：

Kathryn A. Schubel

David R. Veblen

David C. Elbert

机构：

[1] Lafayette College,Department of Geology and Environmental Geosciences

[2] Johns Hopkins University,Morton K. Blaustein Department of Earth and Planetary Sciences

来源：

Carbonates and Evaporites | 2005年 / 20卷

关键词：

Dolomite; Dolomitization; Middle Triassic; SAED Pattern; Dolomite Crystal;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

The wavelengths of nanometer-scale structural modulations in calcium-rich dolomite on the Latemar buildup, Dolomites, northern Italy vary as a function of composition, which is controlled by the temperature of dolomitizing fluids, and contact time with these fluids. Dolomites formed at the highest temperatures are the most magnesian and those formed at the lowest temperatures are the most calcian. The wavelengths of structural modulations, which are visible in brightfield and high-resolution transmission electron microscope images, increase with increasing temperature of formation. Long wavelength modulations are associated with more magnesium rich dolomite that formed at high temperatures.

引用

页码：116 / 130

页数：14

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