Article
Geochemistry & Geophysics
Richen Zhong, Min Zhang, Chang Yu, Hao Cui
Summary: This study found that slab fluids play a critical role in releasing large amounts of K from eclogites in subduction zones, while Zr and other HFSEs are immobile in slab fluids. Adding NaCl to the fluid can enhance the solubility of K via a complex ion exchange mechanism.
Article
Geology
Stylianos F. Tombros, Stavros Triantafyllidis, Sotirios Kokkalas, Michalis Fitros, Degao Zhai, Joan Papavasiliou, Aikaterini Spiliopoulou, Konstantinos Kappis, Vasilios Skliros, Maria Perraki
Summary: Numerical, geochemical, hydraulic and thermodynamic modeling, along with fluid inclusion and fluid chemistry analyses, have provided insights into the mechanisms of ore formation and alteration patterns of the fossilized stringer ore in the Upper Cretaceous Mafic-Pelitic-type VMS hydrothermal system of Ermioni (Karakasi mine). The findings are significant for the exploration of VMS deposits associated with volcaniclastic rocks in back-arc geotectonic settings.
ORE GEOLOGY REVIEWS
(2022)
Article
Geochemistry & Geophysics
Michele Rinaldi, Sami Mikhail, Dimitri A. Sverjensky, Joanna Kalita
Summary: Mineral and fluid inclusions in mantle diamonds provide valuable information about mantle metasomatism and the role of fluids in Earth's interior. This study investigates the influence of carbon concentration on the composition of garnet and clinopyroxene in diamonds from the sub-continental lithospheric mantle. Using a deep earth water model, the researchers predicted the outcomes of metasomatism between silicic, carbonatitic, and peridotitic fluids and common mantle rocks. The results show that the initial geochemistry of fluids and rocks determine the compositions of metasomatic garnets and clinopyroxenes.
GEOCHIMICA ET COSMOCHIMICA ACTA
(2023)
Article
Geosciences, Multidisciplinary
Saeed Soltani-Mohammadi, Maliheh Abbaszadeh, Ardeshir Hezarkhani, Emmanuel John M. Carranza
Summary: This study focused on improving methods for analyzing fluid inclusion data and modeling these data to support mineral exploration efforts. By using a fuzzy kriging approach, estimates were made for thermodynamic variables in unsampled parts of a porphyry-Cu deposit, leading to the creation of a predictive fuzzy model for the spatial distribution of Cu concentration. Validation of this model with samples from boreholes showed its reliability, and it was further used to plan drilling in less explored areas.
NATURAL RESOURCES RESEARCH
(2022)
Article
Engineering, Manufacturing
Arash Samaei, Zhongsheng Sang, Jennifer A. Glerum, Jon-Erik Mogonye, Gregory J. Wagner
Summary: This paper presents a multiphysics modeling approach to investigate melt pool dynamics, keyhole and pore formation, and mixing phenomena in multicomponent powder beds for additive manufacturing of aluminum-based parts. The results show that the mixing of the alloying element, Zr, is heavily influenced by flow patterns in the melt region and keyhole formation.
ADDITIVE MANUFACTURING
(2023)
Review
Chemistry, Applied
Fabian Jirasek, Hans Hasse
Summary: Thermophysical properties of fluid mixtures are important in various fields, and prediction methods are essential due to the lack of experimental data. Physical prediction methods, including molecular models, equations of state, and excess property models, are being complemented by new methods from machine learning (ML). This review provides an overview of the interface between these approaches and showcases how physical modeling and ML can be combined to create hybrid models, with examples from recent research and an outlook on future developments.
ANNUAL REVIEW OF CHEMICAL AND BIOMOLECULAR ENGINEERING
(2023)
Article
Geochemistry & Geophysics
A. Maffeis, S. Ferrando, J. A. D. Connolly, C. Groppo, M. L. Frezzotti, D. Castelli
Summary: When studying the migration of subduction fluids within rocks, it is essential to consider the complex post-entrapment effects, such as solvent loss, chemical reactions, and water diffusion. Results from fluid inclusion analysis and thermodynamic modeling can qualitatively describe and explain the chemical characteristics of UHP fluid inclusions.
GEOCHIMICA ET COSMOCHIMICA ACTA
(2021)
Article
Energy & Fuels
Alexander Begemann, Theresa Trummler, Alexander Doehring, Michael Pfitzner, Markus Klein
Summary: Mixing under high pressure conditions is crucial in engineering applications such as direct-injection engines and liquid rocket engines. Numerical flow simulations are used to study this process but require complex thermodynamic modeling and validation with experimental data. In this study, experiments of supercritical single-phase jet mixing are used as a reference to develop a thermodynamic model and calculate the mixture speed of sound. Large-eddy simulations are performed to compare the results with experimental data and assess the sub-grid scale modeling effect. The comprehensive simulation data combined with the experimental data provide a benchmark for numerical simulations of jet mixing in high pressure conditions.
Article
Chemistry, Physical
Tao He, Shaohe Zhang, Xiangwang Kong, Jingjing Wu, Lei-lei Liu, Dongyu Wu, Zhou Su
Summary: This study investigates the influence of diamond parameters on diamond tools manufactured using FDMS technology. Copper-tin-diamond composite samples with different diamond concentrations and particle sizes were prepared, and the influence on morphological characteristics, mechanical properties, and structure of the samples was explored. The results show that diamond concentration and particle size have a significant impact on the performance of the samples.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Materials Science, Multidisciplinary
Asuka Suzuki, Hideto Nakatani, Makoto Kobashi
Summary: Metal additive manufacturing enables the fabrication of lattice-structured heat sinks with enhanced heat transfer properties. This study proposes 11 structural parameters and uses a neural network model to describe the structural features dominating heat transfer and pressure loss. The study finds that only four parameters are sufficient for describing the heat transfer and pressure loss.
MATERIALS & DESIGN
(2023)
Article
Chemistry, Physical
Tomohiro Kiyosawa, Masahiro Shimizu, Jun Matsuoka, Kento Nakashima, Kenzo Sato, Masayuki Nishi, Yasuhiko Shimotsuma, Kiyotaka Miura
Summary: This study demonstrates that the modified Kempers model can accurately predict the composition dependence of the Soret coefficient in molecular liquids with negative enthalpies of mixing. It provides a framework for predicting and understanding the Soret effect based on equilibrium thermodynamic properties.
JOURNAL OF CHEMICAL PHYSICS
(2022)
Article
Geochemistry & Geophysics
Chunyuan Lan, Renbiao Tao, Fang Huang, Runze Jiang, Lifei Zhang
Summary: In this study, the solubility of different carbonates (calcite/aragonite, dolomite, and magnesite) under high-pressure and high-temperature conditions relevant to subduction zones was systematically determined. The dissolution of dolomite was found to be an incongruent process, while magnesite had much lower solubility compared to aragonite and dolomite. Based on the experimental results, the decarbonation fluxes from carbonate dissolution were about three times larger than those from metamorphism in cold or intermediate subducting slabs.
EARTH AND PLANETARY SCIENCE LETTERS
(2023)
Article
Geosciences, Multidisciplinary
Ruicong Tian, Haiqin Wang, Jingxiang Tian, Wei Shan, Xiufeng Wang, Naijie Chi, Xiaodong Ma, Zhiyuan Chu, Shenghu Li, Qing Lv
Summary: Kimberlite in the Mengyin area provides important insights into the characteristics and evolution of the Paleozoic mantle. In this study, in situ carbonate U-Pb dating was conducted to determine the age of the primary calcite within the kimberlite, and the results suggest an age of approximately 383 +/- 18 Ma. This age provides constraints on the eruption of the kimberlite and the subsequent formation of marble through thermal alteration of limestone xenoliths. Further analysis of fluid inclusions in the marble helps estimate the formation temperature, salinity, and pressure conditions.
FRONTIERS IN EARTH SCIENCE
(2023)
Article
Chemistry, Physical
Adam Debski, Wladyslaw Gasior, Wojciech Gierlotka, Marek Polanski
Summary: In this study, a drop calorimetric method was used to measure the mixing enthalpies of liquid Ag-Mg-Pb alloys. The partial mixing enthalpies of Ag, Mg, and Pb were calculated based on the obtained data. It was found that the ternary Ag-Mg-Pb liquid solutions deviate from ideal solutions with negative deviations.
Article
Physics, Fluids & Plasmas
Hamid Arian Zad, Vadim Ohanyan, Azam Zoshki, Jozef Strecka
Summary: This study rigorously investigates the ground state, entropy, and magnetic Gruneisen parameter of the antiferromagnetic spin-1/2 IsingHeisenberg model on a double sawtooth ladder using the classical transfer-matrix technique. The results reveal the existence of a quadruple point where four different ground states coexist and the presence of enhanced magnetocaloric effect near this point. Comparisons with the purely quantum Heisenberg ladder model show some indications of intermediate magnetization plateaus and the absence of certain quantum Luttinger spin-liquid phase regions in the Ising-Heisenberg model.
Article
Geochemistry & Geophysics
Fang Huang, Dimitri A. Sverjensky
GEOCHIMICA ET COSMOCHIMICA ACTA
(2019)
Article
Geochemistry & Geophysics
Jihua Hao, Andrew H. Knoll, Fang Huang, Robert M. Hazen, Isabelle Daniel
GEOCHIMICA ET COSMOCHIMICA ACTA
(2020)
Article
Geochemistry & Geophysics
Nanfei Cheng, David M. Jenkins, Fang Huang
JOURNAL OF PETROLOGY
(2019)
Article
Multidisciplinary Sciences
Ji-Lei Li, Esther M. Schwarzenbach, Timm John, Jay J. Ague, Fang Huang, Jun Gao, Reiner Klemd, Martin J. Whitehouse, Xin-Shui Wang
NATURE COMMUNICATIONS
(2020)
Article
Geochemistry & Geophysics
Jihua Hao, Andrew H. Knoll, Fang Huang, Juergen Schieber, Robert M. Hazen, Isabelle Daniel
GEOCHIMICA ET COSMOCHIMICA ACTA
(2020)
Review
Geosciences, Multidisciplinary
Samuel Barbier, Fang Huang, Muriel Andreani, Renbiao Tao, Jihua Hao, Ahmed Eleish, Anirudh Prabhu, Osama Minhas, Kathleen Fontaine, Peter Fox, Isabelle Daniel
FRONTIERS IN EARTH SCIENCE
(2020)
Article
Geosciences, Multidisciplinary
Fang Huang, Samuel Barbier, Renbiao Tao, Jihua Hao, Pablo Garcia del Real, Steve Peuble, Andrew Merdith, Vladimir Leichnig, Jean-Philippe Perrillat, Kathy Fontaine, Peter Fox, Muriel Andreani, Isabelle Daniel
Summary: Serpentinization refers to the alteration of ultramafic rocks that produces serpentines and secondary (hydr)oxides under hydrothermal conditions. The process can generate H-2 and organic molecules, but there is significant variability in the experimental results. Building a comprehensive database is essential for better interpretation of data and identification of key parameters controlling the reactions.
GEOSCIENCE DATA JOURNAL
(2021)
Review
Geochemistry & Geophysics
Yuyang He, You Zhou, Tao Wen, Shuang Zhang, Fang Huang, Xinyu Zou, Xiaogang Ma, Yueqin Zhu
Summary: The article introduces the applications of machine learning in geochemistry and cosmochemistry, including rock and sediment identification, digital mapping, water and soil quality prediction, and deep space exploration. Through improvements in research methods such as spectroscopy interpretation, numerical modeling, and molecular machine learning, there are vast opportunities to implement artificial intelligence and develop databases in these fields, while also promoting communication between geochemists/cosmochemists and data scientists.
APPLIED GEOCHEMISTRY
(2022)
Article
Geochemistry & Geophysics
Ben Qin, Fang Huang, Shichun Huang, Andre Python, Yunfeng Chen, J. ZhangZhou
Summary: This study used machine learning methods to analyze the chemical compositions of clinopyroxenes from mantle xenoliths and investigate their relationship with mantle metasomatism. The results suggest that metasomatism may be globally widespread and influenced by unobserved factors.
JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH
(2022)
Article
Multidisciplinary Sciences
Jihua Hao, Christopher R. Glein, Fang Huang, Nathan Yee, David C. Catling, Frank Postberg, Jon K. Hillier, Robert M. Hazen
Summary: Saturn's moon Enceladus has a potentially habitable subsurface water ocean that contains a significant amount of phosphorus. The phosphorus exists mainly in the form of orthophosphate and its concentration is relatively high. Through modeling, researchers found that the rapid release of phosphorus from seafloor weathering could provide sufficient phosphorus supply for the ocean, ensuring that any oceanic life would not be inhibited by low phosphorus availability.
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
(2022)
Article
Geochemistry & Geophysics
Chunyuan Lan, Renbiao Tao, Fang Huang, Runze Jiang, Lifei Zhang
Summary: In this study, the solubility of different carbonates (calcite/aragonite, dolomite, and magnesite) under high-pressure and high-temperature conditions relevant to subduction zones was systematically determined. The dissolution of dolomite was found to be an incongruent process, while magnesite had much lower solubility compared to aragonite and dolomite. Based on the experimental results, the decarbonation fluxes from carbonate dissolution were about three times larger than those from metamorphism in cold or intermediate subducting slabs.
EARTH AND PLANETARY SCIENCE LETTERS
(2023)
Article
Multidisciplinary Sciences
Craig R. Walton, Jihua Hao, Fang Huang, Frances E. Jenner, Helen Williams, Aubrey L. Zerkle, Alex Lipp, Robert M. Hazen, Shanan E. Peters, Oliver Shorttle
Summary: Through measurements of preserved rocks, we reconstructed the lithological and chemical evolution of Earth's continental crust. We found a threefold increase in crustal phosphorus (P) concentrations across the Neoproterozoic-Phanerozoic boundary, indicating the progressive concentration of P within the continental crust due to preferential biomass burial. This compositional change was facilitated by the removal of ancient P-poor rock and deposition of young P-rich sediment during a period of enhanced global erosion, leading to increased riverine P fluxes to the ocean. Our results highlight the significance of global erosion and sedimentary P-enrichment in shaping a nutrient-rich crust during the Phanerozoic.
Article
Geosciences, Multidisciplinary
Anirudh Prabhu, Shaunna M. Morrison, Ahmed Eleish, Hao Zhong, Fang Huang, Joshua J. Golden, Samuel N. Perry, Daniel R. Hummer, Jolyon Ralph, Simone E. Runyon, Kathleen Fontaine, Sergey Krivovichev, Robert T. Downs, Robert M. Hazen, Peter Fox
Summary: Minerals serve as crucial clues to understanding the geologic history of Earth and other planets, and a wealth of mineral occurrence datasets around the world have been documented. The main goal of geoinformatics is to inspire and validate hypotheses applicable to modeling Earth's past environments by merging datasets from various scientific fields. GEMI, as a network with each node representing different features of mineral datasets, provides researchers with valuable insights and is accessible through the DCO Data Portal.
GEOSCIENCE DATA JOURNAL
(2021)
Article
Geochemistry & Geophysics
J. Huang, J. Hao, F. Huang, D. A. Sverjensky
GEOCHEMICAL PERSPECTIVES LETTERS
(2019)
Article
Geochemistry & Geophysics
Xinze Lu, Geoffrey J. Gilleaudeau, Brian Kendall
Summary: The Late Ordovician mass extinction is the first major extinction event in the Phanerozoic, but the reasons for the decline in global biodiversity before the extinction are not well understood.
GEOCHIMICA ET COSMOCHIMICA ACTA
(2024)
Article
Geochemistry & Geophysics
Junyao Kang, Daniel D. Gregory, Benjamin Gill, Shiqiang Huang, Changxin Lai, Zhaoshan Chang, Huan Cui, Ivan Belousov, Shuhai Xiao
Summary: Sedimentary pyrite is an important geological archive, but it can be altered by diagenetic and hydrothermal processes. This study successfully trained machine learning algorithms to distinguish pyrite origins using trace element data. The approach was validated and applied to identify the origins of pyrite in two sedimentary successions in South China.
GEOCHIMICA ET COSMOCHIMICA ACTA
(2024)