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Y. C. Unruh J.-F. Donati J. M. Oliveira A. Collier Cameron C. Catala H. F. Henrichs C. M. Johns-Krull B. Foing J. Hao H. Cao J. D. Landstreet H. C. Stempels J. A. de Jong J. Telting N. Walton P. Ehrenfreund A. P. Hatzes J. E. Neff T. Böhm T. Simon L. Kaper K. G. Strassmeier Th. Granzer 《Monthly notices of the Royal Astronomical Society》2004,348(4):1301-1320
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XUE Quan ZHANG Liwei XU Liang Matthew MYERS Cameron WHITE MEI Kaiyuan WANG Hanwen LI Qi LI Xiaochun 《《地质学报》英文版》2023,97(3):946-955
In order to improve CO2 capture, utilization and storage (CCUS) to solve carbon emission, sandstone from the Triassic Liujiagou Formation (LF) from the Ordos Basin in China was investigated using permeability tests and computed X-ray tomography (CT) scanning. The presence of reactive minerals within the geological CO2 sequestration target storage formation can allow reaction with injected CO2, which changes the porosity and permeability of the LF beds, affecting storage effectiveness. To investigate the effect of chemical reactions on the pore structure and permeability of sandstone cores representing the LF CO2 storage, tests were conducted to analyze the changes in porosity and permeability of sandstone cores induced by CO2-saturated brine at different reaction times (28-day maximum reaction period). Porosity and permeability of the sandstone increased after reaction with CO2-saturated brine due to mineral dissolution. The sandstone exhibited an increase in porosity and permeability after 15 days of reaction with CO2-saturated brine. Moreover, there was an increase in the volume of large pores in the sandstone after the 28-day period. The pore network of the sandstone was established through CT results, and the porosity calculated based on the obtained pore network was close to that measured in the test, demonstrating the feasibility to use CT to study the evolution of the microstructure of sandstone after long-time exposure to CO2-saturated brine. 相似文献
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Acta Geotechnica - Expansive soils, or reactive soils, experience moisture changes under the prevailing climate conditions, leading to shrink during dry periods and swell in wet months. Houses... 相似文献
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Equipped to deal with uncertainty in climate and impacts predictions: lessons from internal peer review 总被引:1,自引:0,他引:1
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Cameron M. Mercer Kip V. Hodges Bradley L. Jolliff Matthijs C. Van Soest Jo‐Anne Wartho John R. Weirich 《Meteoritics & planetary science》2019,54(4):721-739
40Ar/39Ar incremental heating experiments on whole‐rock lunar samples commonly provide evidence of varying degrees of radiogenic 40Ar (40Ar*) loss. However, these experiments provide limited information about whether or not 40Ar* is preferentially lost from specific glasses, minerals, or polyphase domains. Ultraviolet laser ablation microprobe (UVLAMP) 40Ar/39Ar dating and electron probe microanalysis of mineral clasts and polyphase melt assemblages in Apollo 17 poikilitic impact melt rock 77135 show evidence of geochemical controls on 40Ar/39Ar dates. Potassium‐rich glass and K‐feldspar in the mesostasis are the dominant sources for Ar released during low‐temperature steps of published 40Ar/39Ar release spectra for this rock, while pyroxene oikocrysts with enclosed plagioclase chadacrysts contribute Ar predominantly to intermediate‐ to high‐temperature steps. Additionally, UVLAMP analysis of a mm‐scale plagioclase clast demonstrates the potential to use stranded 40Ar* diffusive loss profiles to constrain the thermal evolution of lunar impact melt deposits and indicates that the melt component of 77135 cooled quickly. While some submillimeter clasts of plagioclase are distinctly older than the melt, other small clasts yield dates younger than the oldest melt components in 77135, plausibly due to subgrain fast diffusion pathways and/or 40Ar* loss during brief episodes of reheating at high temperatures. Our data suggest that integrated petrologic and microanalytical geochronologic studies are necessary complements to bulk sample geochronologic studies in order to fully evaluate competing models for the impactor flux during the first billion years of the Moon's evolution. 相似文献
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