揭示巴西南部巴拉那盆地里奥博尼托地层的 CCS 潜力:道森岩的发现

IF 1.4 4区 地球科学 Q3 GEOCHEMISTRY & GEOPHYSICS Mineralogy and Petrology Pub Date : 2024-09-06 DOI:10.1007/s00710-024-00871-4
Letícia L. Mallmann, Augusto G. Nobre, Farid Chemale, Renata G. Netto, Paulo Sérgio G. Paim, Rita Fabiane G. de Oliveira
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引用次数: 0

摘要

道森石是一种水合碳酸盐,是碳捕集与封存(CCS)计划研究的一种关键矿物。它在高二氧化碳浓度环境中形成,能够在地质储层中以固态储存气体,从而有助于减少温室气体排放。里约博尼托地层(Rio Bonito Formation)因其孔隙度、渗透性、深度、厚度、有机质含量等有利特征,以及存在有效的密封层(巴勒莫地层)而作为潜在的二氧化碳储层受到关注,尤其是在巴拉那盆地的中部地区。本研究揭示了巴西南里奥格兰德州巴拉那盆地南部 Rio Bonito 地层中天然存在的道森石。通过岩相分析,在石英砂岩中发现了道逊石,这表明道逊石是在介层成因过程中形成的,它在模孔中结晶。通过扫描电子显微镜结合能量色散 X 射线光谱(SEM-EDX)和 X 射线衍射(XRD)技术,进一步证实了道森石的存在。这一发现标志着在里奥博尼托地层中首次出现了有文献记载的道森石。它表明,在类似条件下,里奥博尼托地层的其他部分也可能包含道森石,从而扩大了巴拉那盆地陆上 CCS 的潜力。
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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Unveiling CCS Potential of the Rio Bonito Formation, Paraná Basin, southern Brazil: The Dawsonite Discovery

Dawsonite, a hydrated carbonate, is a key mineral studied for Carbon Capture and Storage (CCS) initiatives. It forms in high pCO2 environments, enabling gas storage in a solid state within geological reservoirs, thereby helping mitigate greenhouse gas emissions. The Rio Bonito Formation has gained attention as a potential CO2 reservoir due to its favorable characteristics such as porosity, permeability, depth, thickness, organic matter content, and the presence of an effective sealing layer (Palermo Formation), particularly in the central region of the Paraná Basin. This study reveals the natural occurrence of dawsonite within the Rio Bonito Formation in the southern part of the Paraná Basin, in Rio Grande do Sul State, Brazil. Dawsonite was identified in quartz sandstones through petrographic analysis, indicating its formation during mesodiagenesis, where it crystallized within moldic pores. The presence of dawsonite was further confirmed through scanning electron microscopy coupled with energy-dispersive X-ray spectroscopy (SEM–EDX) and X-ray diffraction (XRD) techniques. This discovery marks the first documented occurrence of dawsonite within the Rio Bonito Formation. It suggests that under similar conditions, other sections of the Rio Bonito Formation may also include dawsonite, thereby expanding the potential for onshore CCS in the Paraná Basin.

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来源期刊
Mineralogy and Petrology
Mineralogy and Petrology 地学-地球化学与地球物理
CiteScore
2.60
自引率
0.00%
发文量
0
审稿时长
1 months
期刊介绍: Mineralogy and Petrology welcomes manuscripts from the classical fields of mineralogy, igneous and metamorphic petrology, geochemistry, crystallography, as well as their applications in academic experimentation and research, materials science and engineering, for technology, industry, environment, or society. The journal strongly promotes cross-fertilization among Earth-scientific and applied materials-oriented disciplines. Purely descriptive manuscripts on regional topics will not be considered. Mineralogy and Petrology was founded in 1872 by Gustav Tschermak as "Mineralogische und Petrographische Mittheilungen". It is one of Europe''s oldest geoscience journals. Former editors include outstanding names such as Gustav Tschermak, Friedrich Becke, Felix Machatschki, Josef Zemann, and Eugen F. Stumpfl.
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