Potassium isotope anomalies in meteorites inherited from the protosolar molecular cloud

Y Ku, SB Jacobsen - Science Advances, 2020 - science.org
Potassium (K) and other moderately volatile elements are depleted in many solar system
bodies relative to CI chondrites, which closely match the composition of the Sun. These …

[HTML][HTML] Super-resolution of X-ray CT images of rock samples by sparse representation: applications to the complex texture of serpentinite

T Omori, S Suzuki, K Michibayashi, A Okamoto - Scientific Reports, 2023 - nature.com
X-ray computed tomography (X-ray CT) has been widely used in the earth sciences, as it is
non-destructive method for providing us the three-dimensional structures of rocks and …

[HTML][HTML] Metallogenic characteristics and formation mechanism of Naomugeng clay-type lithium deposit in central inner Mongolia, China

C Li, Z Li, T Wu, Y Luo, J Zhao, X Li, W Yang, X Chen - Minerals, 2021 - mdpi.com
A newly discovered Naomugeng lithium mineralization area is located to the east of the
Central Asian Orogenic Belt (CAOB). The lithium is hosted in the volcanic rocks of the …

Origin of bluish pectolite aka larimar from the Dominican Republic: Constraints from mineralogy and geochemistry

M Dumańska-Słowik, T Powolny, R Milovsky… - Journal of South …, 2024 - Elsevier
The commonly known larimar is usually a gem-quality, bluish pectolite (NaCa 2 Si 3 O 8
OH), intergrown with other associated minerals such as natrolite, prehnite, calcite, chlorite …

[HTML][HTML] Machine-learning techniques for quantifying the protolith composition and mass transfer history of metabasalt

S Matsuno, M Uno, A Okamoto, N Tsuchiya - Scientific Reports, 2022 - nature.com
The mass transfer history of rocks provides direct evidence for fluid–rock interaction within
the lithosphere and is recorded by compositional changes, especially in trace elements. The …

[HTML][HTML] Mass balance of complementary metasomatic processes using isocon analysis

EN Kozlov, EN Fomina - MethodsX, 2022 - Elsevier
This study develops a method to estimate the redistribution of elements during several
associated metasomatic processes simultaneously involved in the formation of a geological …

[HTML][HTML] Data-driven analysis of nonlinear heterogeneous reactions through sparse modeling and Bayesian statistical approaches

M Ito, T Kuwatani, R Oyanagi, T Omori - Entropy, 2021 - mdpi.com
Heterogeneous reactions are chemical reactions that occur at the interfaces of multiple
phases, and often show a nonlinear dynamical behavior due to the effect of the time-variant …

Constraints on protosolar planetary disk formation from the potassium-isotope compositions of the chondritic meteorites

Y Ku - 2022 - search.proquest.com
Potassium isotopes unveil some of the early geological activities and processes in the early
solar system. Due to its relative volatile and mobile characteristics, the chemical and isotopic …

A Protolith Reconstruction Model (PRM) for Metabasalt: Quantitative Protolith and Mass Transfer Estimation Based on Machine-learning Approach

S Matsuno, M Uno, A Okamoto, N Tsuchiya - 2021 - researchsquare.com
Mass transfer in rocks provides a direct record of fluid–rock interaction within the Earth,
including metamorphism, metasomatism, and hydrothermal alteration. However, mass …

変成岩から見た沈み込み帯の水―岩石相互作用

吉田健太 - 岩石鉱物科学, 2021 - jstage.jst.go.jp
抄録 Fluid inclusions in high-pressure type metamorphic rocks provide direct information of
the deep fluid activity. However, their small size occasionally prevent detailed geochemical …