气候变化领域集成服务门户(CCPortal): Phase transitions in natural C-O-H-N-S fluid inclusions - implications for gas mixtures and the behavior of solid H2S at low temperatures

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DOI	10.1038/s41467-021-27269-6
	Phase transitions in natural C-O-H-N-S fluid inclusions - implications for gas mixtures and the behavior of solid H2S at low temperatures
	Sośnicka M.; Lüders V.
发表日期	2021
ISSN	2041-1723
卷号	12 期号:1
英文摘要	C–O–H–N–S-bearing fluids are known as one of the most challenging geochemical systems due to scarcity of available experimental data. H2S-rich fluid systems were recognized in a wide array of world-class mineral deposits and hydrocarbon reservoirs. Here we report on a nature of low-temperature (T ≥ −192 °C) phase transitions observed in natural CH4–H2S–CO2–N2–H2O fluid inclusions, which are modeled as closed thermodynamic systems and thus serve as natural micro-laboratories representative of the C–O–H–N–S system. For the first time, we document solid–solid H2S (α ↔ β ↔ γ) transitions, complex clathrates and structural transformations of solid state H2S in natural inclusion gas mixtures. The new data on Raman spectroscopic features and a complete sequence of phase transition temperatures in the gas mixtures contribute to scientific advancements in fluid geochemistry. Enhanced understanding of the phase equilibria in the C–O–H–N–S system is a prerequisite for conscientious estimation of P-T-V-X properties, necessary to model the geologic evolution of hydrocarbon and mineral systems. Our findings are a driver for the future research expeditions to extraterrestrial H2S-rich planetary systems owing to their low temperature environments. © 2021, The Author(s).
语种	英语
scopus关键词	fluid dynamics; fluid inclusion; geochemical phenomena; low temperature; phase transition; thermodynamics
来源期刊	Nature Communications
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/251297
作者单位	GFZ German Research Centre for Geosciences, Telegrafenberg, Potsdam, 14473, Germany; Institute of Geosciences, Friedrich Schiller University Jena, Burgweg 11, Jena, 07749, Germany
推荐引用方式 GB/T 7714	Sośnicka M.,Lüders V.. Phase transitions in natural C-O-H-N-S fluid inclusions - implications for gas mixtures and the behavior of solid H2S at low temperatures[J],2021,12(1).
APA	Sośnicka M.,&Lüders V..(2021).Phase transitions in natural C-O-H-N-S fluid inclusions - implications for gas mixtures and the behavior of solid H2S at low temperatures.Nature Communications,12(1).
MLA	Sośnicka M.,et al."Phase transitions in natural C-O-H-N-S fluid inclusions - implications for gas mixtures and the behavior of solid H2S at low temperatures".Nature Communications 12.1(2021).