Article
Engineering, Civil
Haitao Zhang, Guangquan Xu, Hongbin Zhan, Jianbin Zheng, Minhua Wang, Mancai Liu, Shengqiang Pan, Nan Wang
Summary: This study investigated the formation mechanisms and characteristics of paleokarst and karst collapse columns in the Middle Cambrian-Lower Ordovician carbonates in the Huainan coalfield, China. The main types of corrosive fluids identified were meteoric water, formation water, hydrothermal fluids, and mixing fluids, each contributing to the development of different karst features. Additionally, the development of paleokarst and KCCs was found to be influenced by stratigraphic lithology, geological structures, and migration channels of corrosive fluids.
JOURNAL OF HYDROLOGY
(2021)
Article
Geochemistry & Geophysics
Camille Dusseaux, Aude Gebelin, Gilles Ruffet, Andreas Mulch
Summary: The study presents the first stable isotope paleoaltimetry estimates for the hinterland of the eroded Variscan Belt of Western Europe based on hydrogen isotope ratios of muscovite from syntectonic leucogranites. The significant difference in hydrogen isotope values between the Millevaches massif and the Bourbon l'Archambault foreland basin supports paleoaltimetry estimates, indicating that the Variscan belt of western Europe acted as a barrier to moisture transport and induced an orographic rain shadow effect.
EARTH AND PLANETARY SCIENCE LETTERS
(2021)
Review
Geosciences, Multidisciplinary
C. Page Chamberlain, Daniel E. Ibarra, Tyler Kukla, Katharina A. Methner, Yuan Gao
Summary: Triple oxygen isotopes of hydrothermally altered minerals from crystalline rocks can help determine past elevations of mountain ranges by creating arrays that can be traced back to the meteoric water line. This method offers an advantage by relying solely on oxygen isotopes, providing an independent check on the reliability of hydrogen isotope studies used in previous research.
FRONTIERS IN EARTH SCIENCE
(2021)
Article
Pharmacology & Pharmacy
Tiago Porfirio, Francisco J. Galindo-Rosales, Laura Campo-Deano, Joao Vicente, Viriato Semiao
Summary: The study provides rheological characterization of commonly used polymers and solvents for formulating amorphous solid dispersions using spray drying. Different polymers exhibit distinct rheological behaviors, which can aid in understanding spray drying processes.
EUROPEAN JOURNAL OF PHARMACEUTICAL SCIENCES
(2021)
Article
Geochemistry & Geophysics
Ivan Koulakov, Viktoria Komzeleva, Sergey Z. Smirnov, Svetlana B. Bortnikova
Summary: The study reveals a columnar anomaly of high Vp, low Vs, and high Vp/Vs ratio beneath Akutan volcano, representing a steady conduit feeding the volcano. The upper part of the volcano shows highly heterogeneous structures associated with shallow magmatic sources, meteoric and magmatic fluids interactions. A prominent anomaly of high Vp/Vs beneath the summit area may indicate a shallow magma reservoir responsible for recent eruption activity.
JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH
(2021)
Article
Geosciences, Multidisciplinary
Guoding Yu, Jing Yuan, Keyu Liu, Xianzhang Yang, Daotao Dong, Pengjie Ma, Chiqiang Huang
Summary: By investigating the diagenesis of the sandstones from the DN2 Gas Field in the Kuqa Foreland Basin, we were able to infer the timing of fluid migration and discuss its connection to tectonic processes. The results suggest that the migration of high salinity fluids is related to the rapid uplift of the Tianshan Mts and associated tectonic activities.
ACTA GEOLOGICA SINICA-ENGLISH EDITION
(2023)
Article
Physics, Condensed Matter
Sushil Dubey, Sukh Veer, R. V. Seshagiri Rao, Chirag Kalelkar, Pramod A. Pullarkat
Summary: This article introduces a versatile device for conducting extensional deformation studies of samples at microscopic scales with simultaneous imaging. The operational features of this device are discussed, and several applications are presented.
JOURNAL OF PHYSICS-CONDENSED MATTER
(2021)
Article
Geosciences, Multidisciplinary
Jennifer C. McIntosh, Grant Ferguson
Summary: The maximum depths of meteoric water circulation across North America vary greatly, with the deepest circulation in Western North America and shallower circulation in sedimentary and shield-type environments with subdued topography. The presence of active flow systems in the upper few kilometers of the Earth's crust and stagnant brines trapped by negative buoyancy provides a new framework for understanding deep groundwater systems.
GEOPHYSICAL RESEARCH LETTERS
(2021)
Article
Mechanics
Jianyi Du, Hiroko Ohtani, Crystal E. Owens, Lenan Zhang, Kevin Ellwood, Gareth H. McKinley
Summary: This text describes a customized Capillary Breakup Extensional Rheometer (CaBER) with improved dynamic performance and added features for temperature control, aiming to characterize the extensional rheological behavior of weakly rate-thickening fluids in the automotive industry. Comparing the rheological properties of two commercially available automotive fluids, it was found that they exhibit significant and distinct rate-thickening behavior in the extensional flow. A simple Inelastic Rate-Thickening (IRT) model was proposed to more robustly describe the material response of weakly rate-thickening fluids.
JOURNAL OF NON-NEWTONIAN FLUID MECHANICS
(2021)
Article
Polymer Science
Abigail K. Grosskopf, Joseph L. Mann, Julie Baillet, Hector Lopez Hernandez, Anton A. A. Autzen, Anthony C. Yu, Eric A. Appel
Summary: Designing high water content nanocomposite hydrogel materials with desired functional properties is a significant challenge. The dynamic cross-linking interactions within the polymer network can be controlled by modulating the chemical composition of the materials, leading to high extensibility and yielding of stress fluids.
Article
Multidisciplinary Sciences
Katharina Gensowski, Maximilian Much, Elisabeth Bujnoch, Stefan Spahn, Sebastian Tepner, Florian Clement
Summary: This article presents a method of reducing silver consumption in the metallization of heterojunction solar cells through filament stretching of polymer-based low-temperature curing Ag pastes, while also offering high production throughput potential. The experiments show that filament stretching can significantly reduce the width of Ag-electrodes and the amount of Ag laydown.
SCIENTIFIC REPORTS
(2022)
Article
Mathematics, Applied
Tao Cheng, Lihua Feng, Weijun Liu, Lu Lu
Summary: This paper investigates the extensional eigenvalues of graphs, develops some basic theories about extensional eigenvalues, and presents connections between extensional eigenvalues and the structure of graphs.
APPLIED MATHEMATICS AND COMPUTATION
(2021)
Article
Multidisciplinary Sciences
Shohei Ueki, Yoji Mine, Kazuki Takashima
Summary: Meteoric iron, comprising kamacite, taenite, and cohenite, was the first metal obtained and used by humans in the earliest stage of metal culture. Through micro-tensile tests, it was found that the taenite matrix in meteoric iron exhibits a better balance between yield strength and ductility compared to the kamacite matrix. This indicates that solid-solution strengthening via nitrogen is highly effective for the Fe-Ni system, suggesting insights for developing advanced high-strength steel.
SCIENTIFIC REPORTS
(2021)
Review
Pediatrics
Jaime Fernandez-Sarmiento, Carolina Casas-Certain, Sarah Ferro-Jackaman, Fabian H. Solano-Vargas, Jesus angel Dominguez-Rojas, Francisco Javier Pilar-Orive
Summary: Crystalloids like normal saline and Ringer's lactate, commonly used in intravenous fluid therapy, have been questioned for their composition and quantity due to associated complications and worse clinical outcomes.
FRONTIERS IN PEDIATRICS
(2023)
Review
Ophthalmology
Rashmi Deshmukh, Sridevi Nair, Darren Shu Jeng Ting, Tushar Agarwal, Jacqueline Beltz, Rasik B. Vajpayee
Summary: Graft detachment is a common complication in endothelial keratoplasty, with various risk factors and management strategies needing consideration to prevent and address this issue effectively. Advancements in understanding and techniques have led to improved outcomes in managing graft detachments.
BRITISH JOURNAL OF OPHTHALMOLOGY
(2022)
Article
Geology
Zuo-Chen Li, Xian-Zhi Pei, Paul D. Bons, Rui-Bao Li, Lei Pei, Guo-Chao Chen, You-Xin Chen, Cheng-Jun Liu, Meng Wang, Shao-Wei Zhao, Xiao-Bing Li, Feng Gao
Summary: The study of the Xiangjiananshan granitic plutons in the East Kunlun Orogenic Belt of the northern Tibetan Plateau reveals that these rocks were formed by partial melting and mixing of the lower crust, influenced by the subduction of the Buqingshan-A'nyemaqing Ocean.
INTERNATIONAL GEOLOGY REVIEW
(2022)
Article
Geosciences, Multidisciplinary
Ao Su, Paul D. Bons, Honghan Chen, Yue-xing Feng, Jian-xin Zhao, Jingwen Song
Summary: This study provides a comprehensive analysis of beef veins in the mature Eocene lacustrine Hetaoyuan Formation in the Nanxiang Basin, China. The results show that these beef veins mainly occur in calcite-rich laminated shales with high organic matter contents and shallow burial depth. The formation of beef veins can be explained by a two-stage model involving horizontal hydro fracturing triggered by biogenetic gas generation and the mobilization of materials into unhealed fractures through pressure solution of host-rock calcite.
GEOLOGICAL SOCIETY OF AMERICA BULLETIN
(2022)
Article
Geosciences, Multidisciplinary
Enrique Gomez-Rivas, Juan Diego Martin-Martin, Paul D. Bons, Daniel Koehn, Albert Griera, Anna Trave, Maria-Gema Llorens, Elliot Humphrey, Joyce Neilson
Summary: This study demonstrates how stylolites can act as barriers or conduits for different diagenetic reactions, influencing fluid transport and diagenesis processes in carbonate rocks. Stylolites were found to inhibit some reactions while promoting others, highlighting the importance of considering their collective role in influencing geological processes.
MARINE AND PETROLEUM GEOLOGY
(2022)
Editorial Material
Geochemistry & Geophysics
Enrique Gomez-Rivas, Paul D. Bons, Rudy Swennen, Antonio Benedicto
Article
Geosciences, Multidisciplinary
Jun Wu, Tailiang Fan, Enrique Gomez-Rivas, Qian Cao, Anna Trave, Zhiqian Gao, Zhihong Kang, Daniel Koehn, Paul D. Bons
Summary: We analyzed the sealing effectiveness of different types of stylolite-bearing cap rocks using a combination of characterization techniques. The study was based on carbonate cap rocks in the Tarim Basin. Samples from drill cores and outcrop analogues were used to quantify the influence of morphology on sealing capacity. The sealing capacity varied based on pore structure connections and stylolite types. Samples with simple wave-like stylolites showed the best sealing capacity, while those with seismogram pinning types had the lowest. The study provides examples for predicting sealing potential in other geological settings.
GEOLOGICAL SOCIETY OF AMERICA BULLETIN
(2023)
Article
Geography
Eloi Gonzalez-Esvertit, Angels Canals, Paul D. Bons, Henrique Murta, Josep Maria Casas, Enrique Gomez-Rivas
Summary: This article presents detailed geological maps and interpretations of three key areas in the Eastern Pyrenees where Giant Quartz Veins (GQVs) are well exposed. The studied rocks record different styles of deformation and representative settings where GQVs are present. GQVs in these areas formed along pre-existing structures or at locations with lithological heterogeneities, and have alteration haloes of silicified host rocks. These geological maps and interpretations contribute to gaining insights into the formation mechanisms of GQVs and the structural constraints on fluid flow and mineral reactions at different depths of the Earth's crust.
Article
Geosciences, Multidisciplinary
Shasha Sun, Saipeng Huang, Enrique Gomez-Rivas, Albert Griera, Bo Liu, Lulu Xu, Yaru Wen, Dazhong Dong, Zhensheng Shi, Yan Chang, Yin Xing
Summary: This study characterizes the microfracture morphology of deep-marine shale gas reservoirs using detailed shale drill core descriptions, 3D Computed Tomography scans, and Formation MicroScanner Image data acquisition. The results show a decrease in natural fracture density, length, and aperture with increasing burial depth and formation thickness. The study also identifies natural fracture density, host rock formation thickness, total organic carbon, and effective porosity as important factors for evaluating shale gas reservoirs.
FRONTIERS OF EARTH SCIENCE
(2023)
Article
Engineering, Civil
Xiaolong Sun, Yingchang Cao, Keyu Liu, Juan Alcalde, Patricia Cabello, Anna Trave, David Cruset, Enrique Gomez-Rivas
Summary: This study investigates the effects of variable fluvial lithofacies associations on CO2 storage. It finds that low-permeable facies in medial-distal lithofacies associations can act as flow barriers, increasing the amount of permanently trapped CO2 and reducing leakage risks. Based on multicriteria decision-making, the proximal-medial fluvial lithofacies associations are assessed as the most suitable for CO2 storage. This study provides new insights for the screening and selection of potential geological sites for CO2 storage.
JOURNAL OF HYDROLOGY
(2023)
Article
Computer Science, Interdisciplinary Applications
Johanna Heeb, David Healy, Nicholas E. Timms, Enrique Gomez-Rivas
Summary: A semi-automated MATLABTM toolbox called GBPaQ was introduced, which utilizes different methods to quantitatively analyze grain boundary patterns for applications such as seismic wave attenuation estimation. Results from testing two example patterns showed that a combination of grain ellipse, grain boundary segment orientation, and grain boundary segment intercept density rose diagrams can provide a complete quantification of grain boundary pattern anisotropy. The study also proposed a new grain boundary network parameter, the minimum intensity of grain boundary intercepts (Imin), which has a power law relationship with the average axial ratio of grain-fitted ellipses (r) during grain shape preferred orientation (SPO) development.
COMPUTERS & GEOSCIENCES
(2023)
Article
Geosciences, Multidisciplinary
Eloi Gonzalez-Esvertit, Juan Alcalde, Enrique Gomez-Rivas
Summary: Evaporites have unique mechanical properties and play key roles in structural and stratigraphical architecture, as well as mineral deposits and petroleum systems. The Iberian Evaporite Structure Database (IESDB) is the first comprehensive assessment of evaporite structures and provides valuable information for geoscience-based technologies and addressing societal challenges.
EARTH SYSTEM SCIENCE DATA
(2023)
Article
Geochemistry & Geophysics
B. Hao, M. -g. Llorens, A. Griera, P. D. Bons, R. A. Lebensohn, Y. Yu, E. Gomez-Rivas
Summary: This study presents novel results of full-field numerical simulations of rock salt deformation, specifically the behavior of halite during simple shear deformation. The study successfully replicates laboratory experiments and reveals the competition between grain size reduction and grain growth, controlled by dislocation glide and subgrain rotation recrystallization versus grain boundary migration. The relationship between subgrain misorientation and strain deviates from a power law relationship with increasing strain, indicating the influence of dynamic recrystallization. Understanding rock salt behavior is important for various geological applications, and these findings contribute to accurate estimation of strain and deformation conditions.
JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH
(2023)
Article
Geosciences, Multidisciplinary
Till Sachau, Haibin Yang, Justin Lang, Paul D. Bons, Louis Moresi
Summary: Numerical models are essential for understanding and predicting ice sheet and glacier flow, and the Underworld software package provides a full-Stokes solution and mechanical anisotropy for glaciological research. The use of a material point method allows for tracking the full history of material points, stratigraphic layers, and free surfaces. The software successfully reproduces results from other full-Stokes models and highlights the need for adaptive finite-element grids for discontinuous material interfaces.
GEOSCIENTIFIC MODEL DEVELOPMENT
(2022)
Article
Geography, Physical
Maria-Gema Llorens, Albert Griera, Paul D. Bons, Ilka Weikusat, David J. Prior, Enrique Gomez-Rivas, Tamara de Riese, Ivone Jimenez-Munt, Daniel Garcia-Castellanos, Ricardo A. Lebensohn
Summary: This study investigates the influence of ice deformation history on the development of crystallographic preferred orientations (CPOs) using full-field numerical simulations. The results show that the second deformation event tends to destroy the first inherited fabric, but the transition is slow when crystallographic axes are critically oriented with respect to the second imposed regime. Therefore, caution must be exercised when interpreting observed CPOs in areas with complex deformation histories.