Holographic characterization of typical silicate minerals by terahertz time-domain spectroscopy

IF 5.3 2区地球科学 Q2 CHEMISTRY, PHYSICAL

Applied Clay Science Pub Date : 2025-02-01 DOI:10.1016/j.clay.2025.107720

Haochong Huang , Xinyu Li , Zhiyuan Zheng , Hanhan Fan , Caiqin Liu , Enhui Yuan , Jialu Gu , Yutong Ma , Qian Xu , Spozmai Panezai , Shanshan Li , Zhuo Zhang , Dexin Sun , Kunfeng Qiu

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引用次数: 0

Abstract

The Deep-Time Digital Earth Plan aims to develop a comprehensive digital representation of Earth's global systems, a goal that requires extensive mineralogical data and substantial scientific information. While traditional mineralogical characterization provides critical insights into the mantle's water cycle and geological evolution, existing geological methodologies face challenges due to electromagnetic band gaps and limitations in phase utilization. Leveraging the unique properties of water-sensitive, coherent, and fingerprint spectra, this study introduced Terahertz (THz) spectroscopy as a new method for validating holographic “THz colors” under pyrolytic and optical conditions. This approach enabled the simultaneous analysis of amplitude, phase, and spectral distribution for typical silicate minerals, facilitating the development of a comprehensive library of THz spectra for mineral materials. This library was constructed with support from conventional X-ray and infrared tools. Our research identified several minerals with THz characteristic absorption peaks, including pyrophyllite at 1.10 THz and chamosite at 1.15 THz. These findings challenged existing perceptions in the THz community regarding raw mineral. The experimental results demonstrated the potential of THz technology as a transformative tool for mineral detection and geological analysis, integrating optics and geophysics. Moreover, this advancement provides significant insights and enhances the development of digital Earth models and study of mineral morphology on Earth's surface.

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来源期刊

Applied Clay Science 地学-矿物学

CiteScore

10.30

自引率

10.70%

发文量

289

审稿时长

39 days

期刊介绍： Applied Clay Science aims to be an international journal attracting high quality scientific papers on clays and clay minerals, including research papers, reviews, and technical notes. The journal covers typical subjects of Fundamental and Applied Clay Science such as: • Synthesis and purification • Structural, crystallographic and mineralogical properties of clays and clay minerals • Thermal properties of clays and clay minerals • Physico-chemical properties including i) surface and interface properties; ii) thermodynamic properties; iii) mechanical properties • Interaction with water, with polar and apolar molecules • Colloidal properties and rheology • Adsorption, Intercalation, Ionic exchange • Genesis and deposits of clay minerals • Geology and geochemistry of clays • Modification of clays and clay minerals properties by thermal and physical treatments • Modification by chemical treatments with organic and inorganic molecules(organoclays, pillared clays) • Modification by biological microorganisms. etc...