单石英δ18O：碎屑物源分析的新前沿（孟加拉扇，IODP 354）

IF 3.6 2区地球科学 Q1 GEOCHEMISTRY & GEOPHYSICS

Chemical Geology Pub Date : 2024-12-03 DOI:10.1016/j.chemgeo.2024.122525

Mara Limonta, Christian France-Lanord, Albert Galy, Andrey Gurenko, Nordine Bouden, Eduardo Garzanti

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引用次数: 0

摘要

石英是沉积物和沉积岩中最丰富的矿物，但迄今为止，可靠地确定其来源的努力只取得了部分成果。即使是阴极发光、拉曼光谱、同步加速器x射线吸收光谱和激光烧蚀光谱等先进方法也取得了有限的成功。本文演示了碎屑石英的δ18O如何提供有用的额外见解。氧同位素特征主要取决于烃源岩及其形成条件，不同地壳烃源岩的氧同位素特征差异很大，碳酸盐岩的氧同位素特征最大。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Single quartz δ18O: A new frontier in detrital provenance analysis (Bengal Fan, IODP Expedition 354)

Quartz is the most abundant mineral in sediments and sedimentary rocks but efforts to reliably identify its provenance have been only partially fruitful so far. Even advanced methods such as cathodo-luminescence, Raman spectroscopy, synchrotron X-ray absorption spectroscopy, and laser ablation spectrometry have led to limited success. This article demonstrates how the δ18O of detrital quartz provides useful additional insight. The oxygen-isotope signature primarily depends on source rocks and their formation conditions, being highly different for different crustal sources and highest for carbonate rocks.

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来源期刊

Chemical Geology 地学-地球化学与地球物理

CiteScore

7.20

自引率

10.30%

发文量

374

审稿时长

3.6 months

期刊介绍： Chemical Geology is an international journal that publishes original research papers on isotopic and elemental geochemistry, geochronology and cosmochemistry. The Journal focuses on chemical processes in igneous, metamorphic, and sedimentary petrology, low- and high-temperature aqueous solutions, biogeochemistry, the environment and cosmochemistry. Papers that are field, experimentally, or computationally based are appropriate if they are of broad international interest. The Journal generally does not publish papers that are primarily of regional or local interest, or which are primarily focused on remediation and applied geochemistry. The Journal also welcomes innovative papers dealing with significant analytical advances that are of wide interest in the community and extend significantly beyond the scope of what would be included in the methods section of a standard research paper.