Article
Green & Sustainable Science & Technology
Mar Alonso, Nemesio M. Perez, Pedro A. Hernandez, Eleazar Padron, Gladys Melian, Fatima Rodriguez, German Padilla, Jose Barrancos, Maria Asensio-Ramos, Thrainn Fridriksson, Hirochika Sumino
Summary: This study presents an extensive analysis of helium emissions and thermal energy released from volcanic systems, revealing a direct relationship between diffuse helium emissions and the rise of mantle fluids. These findings are important for inferring the existence of deep and hidden geothermal resources, especially in areas without obvious geothermal manifestations.
Article
Chemistry, Analytical
Alessandra Cofano, Francesca Cigna, Luigi Santamaria Amato, Mario Siciliani de Cumis, Deodato Tapete
Summary: The text discusses the study methodology and results of monitoring sulfur dioxide (SO2) at the Stromboli volcano using the TROPOspheric Monitoring Instrument (TROPOMI) onboard the Copernicus Sentinel-5 Precursor (Sentinel-5P) satellite, including data processing and analysis from 2018 to 2021, as well as comparisons of monitoring results during different activity periods.
Article
Geosciences, Multidisciplinary
Rosa Anna Corsaro, Lucia Miraglia
Summary: This study reveals the eruptive characteristics and magma processes variation of the South-East crater of Etna volcano through petrologic monitoring and analysis of other relevant data. The results demonstrate the crucial role of petrologic monitoring in understanding the volcanic plumbing system and pre-eruptive processes during volcanic crises.
FRONTIERS IN EARTH SCIENCE
(2022)
Article
Geochemistry & Geophysics
Z. Taracsak, T. A. Mather, S. Ding, T. Plank, M. Brounce, D. M. Pyle, A. Aiuppa
Summary: Sulfur is of crucial importance in the Earth system and plays a key role in various processes. Subduction zones significantly impact the global sulfur cycle, and arc magmas have distinct sulfur characteristics compared to mid-ocean ridge basalts. The study analyzes the sulfur isotopic composition of primary arc magmas and suggests that an oxidized slab component contributes to the elevated sulfur contents and oxidizing conditions observed in arc magmas globally.
EARTH AND PLANETARY SCIENCE LETTERS
(2023)
Article
Geosciences, Multidisciplinary
Michael R. Hudak, Ilya N. Bindeman, Matthew W. Loewen, Thomas Giachetti
Summary: Interaction between magma and water can greatly affect the explosivity of volcanic eruptions, with the hydrogen isotopes in volcanic glass recording syn-eruptive hydration. High temperatures during pyroclast-water interactions are more important than cooling rates in facilitating hydration processes.
GEOPHYSICAL RESEARCH LETTERS
(2021)
Article
Geochemistry & Geophysics
J-M Dudley, A. H. Peslier, R. L. Hervig
Summary: The assessment of water abundance and hydrogen isotopic signature in the Martian interior plays a crucial role in understanding the formation of inner solar-system planets, the origin of their volatiles, Martian volcanic history, and the potential for life on Mars. This study investigates the effect of shock on hydrogen in mineral phases of Martian meteorites, revealing diffusive loss of hydrogen during shock-melting. The research suggests that while the Martian mantle may be heterogeneous in water content, it is likely homogeneous within uncertainties for delta D.
GEOCHIMICA ET COSMOCHIMICA ACTA
(2022)
Article
Geochemistry & Geophysics
G. Boudoire, G. Pasdeloup, F. Schiavi, N. Cluzel, V. Rafflin, F. Grassa, G. Giuffrida, M. Liuzzo, A. Harris, D. Laporte, A. L. Rizzo
Summary: Developing monitoring strategies in long-quiescent volcanic provinces is challenging due to the lack of recordable signals and experienced eruptive phenomenology. This study in the Massif Central (France) focuses on the Pavin's Group of Volcanoes and proposes an innovative approach to understand the gas evolution in the magmatic system. By analyzing fluid inclusions, the study reveals insights into magma degassing, magma differentiation, and the origin of gas emissions in the region.
Article
Geochemistry & Geophysics
Julia Neukampf, Oscar Laurent, Peter Tollan, Anne-Sophie Bouvier, Tomas Magna, Peter Ulmer, Lyderic France, Ben S. Ellis, Olivier Bachmann
Summary: This study reconstructs the evolution of lithium element and isotope in the magma reservoir using lithium concentrations and isotopic compositions in glassy melt inclusions and groundmass glass. The study finds that there is diffusion exchange of lithium and hydrogen between quartz and melt during magma ascent, leading to changes in lithium content and isotopic compositions. This is important for understanding the degassing mechanism during volcanic eruptions.
GEOCHIMICA ET COSMOCHIMICA ACTA
(2022)
Article
Geochemistry & Geophysics
Jeffrey T. Cullen, Shaul Hurwitz, Jaime D. Barnes, John C. Lassiter, Sarah Penniston-Dorland, Anette Meixner, Frederike Wilckens, Simone A. Kasemann, R. Blaine McCleskey
Summary: The study reveals that chlorine, lithium, and boron in thermal waters in the Yellowstone Plateau Volcanic Field are significantly influenced by rhyolite, with their proportions varying under different temperature and fluid-rock reaction conditions.
GEOCHEMISTRY GEOPHYSICS GEOSYSTEMS
(2021)
Article
Geochemistry & Geophysics
Shuang-Qing Li, Axel K. Schmitt
Summary: The study analyzed zircon megacrysts from Quaternary intraplate basaltic volcanoes in northeastern Cambodia, revealing complex Li isotopic variations and suggesting multi-mode Li diffusion influenced by variable trace element inventories within individual crystals. The research also indicated diffusion-driven equilibration between zircon and basaltic melt, with pre-eruptive heating timescales estimated to be about 18 days.
GEOCHIMICA ET COSMOCHIMICA ACTA
(2021)
Article
Geochemistry & Geophysics
Pierre Delmelle, Elena C. Maters, Julie A. Calkins, Francois Gaspard, Sophie Opfergelt, Susanna F. Jenkins
Summary: The presence of fluoride-bearing compounds in volcanic ash poses significant environmental and health hazards. Research suggests the existence of silicon hexafluoride salts, particularly Na2SiF6, in magmatic ash, which affects the F- concentration, acidity, and dissolved silicon isotope values. This highlights the important role of Na2SiF6 in modulating the environmental and health effects of ash emissions from fluorine-rich magmatic eruptions.
Article
Geochemistry & Geophysics
Jin-Sheng Zhou, Qiang Wang, Yi-Gang Xu, Jan Cempirek, He Wang, Jin-Long Ma, Gang-Jian Wei, Tong-Yu Huang, Guan-Hong Zhu, Le Zhang
Summary: Identification of factors affecting Li-mineralizing potential is crucial for understanding Li pegmatites genesis. This study on the Bailongshan Li pegmatite district reveals that cooling rate plays a significant role in controlling Li isotopic compositions, with high cooling rate favoring the formation of Li pegmatites.
Article
Geosciences, Multidisciplinary
S. Engwell, L. Mastin, A. Tupper, J. Kibler, P. Acethorp, G. Lord, R. Filgueira
Summary: Understanding volcanic hazards such as location, intensity, and duration is crucial in reducing risks from eruptions. Using a near-real-time dataset of Volcanic Ash Advisories (VAAs) issued over 10 years, this study investigates global rates and durations of explosive volcanic activity. The increase in VAA issuances since 2015 does not directly correlate with an increase in volcanic activity, but rather represents improved observations and capabilities in detecting volcanic clouds.
BULLETIN OF VOLCANOLOGY
(2021)
Article
Geosciences, Multidisciplinary
Eemu Ranta, Saemundur A. Halldorsson, Peter H. Barry, Shuhei Ono, Johann Gunnarsson Robin, Barbara I. Kleine, Andrea Ricci, Jens Fiebig, Arny E. Sveinbjornsdottir, Andri Stefansson
Summary: Mantle volatiles are transported to Earth's crust and surface by basaltic volcanism. During subaerial eruptions, large amounts of carbon, sulfur, and halogens can be released to the atmosphere, with impacts ranging from local to global scales. Volcanic hydrothermal systems play a role in releasing volatiles from intrusive magmatism and can be used to assess the contribution of intrusive magmatism to volcanic volatile budgets.
JOURNAL OF VOLCANOLOGY AND GEOTHERMAL RESEARCH
(2023)
Article
Materials Science, Ceramics
Xiaojiao Yu, Mingzhong Wang, Yu Rao, Yinsheng Xu, Mengling Xia, Xianghua Zhang, Ping Lu
Summary: This article investigates the nucleation and crystallization of glass-ceramics, which are influenced by early phase separation. It also provides direct evidence of nanoscale clustering in the glassy phase prior to nucleation and crystallization. The effect of phase separation on nucleation and final crystallize products is elucidated.
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2023)
Article
Chemistry, Applied
Mona W. Minde, Merete V. Madland, Udo Zimmermann, Nina Egeland, Reidar I. Korsnes, Eizo Nakamura, Katsura Kobayashi, Tsutomu Ota
MICROPOROUS AND MESOPOROUS MATERIALS
(2020)
Review
Geosciences, Multidisciplinary
Giuseppe Re, Rosa Anna Corsaro, Claudia D'Oriano, Massimo Pompilio
Summary: The study aims to survey the common petrological monitoring procedures adopted by volcano monitoring institutions worldwide, with a sample from 18 participating institutions highlighting time, facilities, and staff as the major constraints hindering the development of petrological monitoring.
JOURNAL OF VOLCANOLOGY AND GEOTHERMAL RESEARCH
(2021)
Article
Astronomy & Astrophysics
Toru Yada, Masanao Abe, Tatsuaki Okada, Aiko Nakato, Kasumi Yogata, Akiko Miyazaki, Kentaro Hatakeda, Kazuya Kumagai, Masahiro Nishimura, Yuya Hitomi, Hiromichi Soejima, Miwa Yoshitake, Ayako Iwamae, Shizuho Furuya, Masayuki Uesugi, Yuzuru Karouji, Tomohiro Usui, Tasuku Hayashi, Daiki Yamamoto, Ryota Fukai, Seiji Sugita, Yuichiro Cho, Koki Yumoto, Yuna Yabe, Jean-Pierre Bibring, Cedric Pilorget, Vincent Hamm, Rosario Brunetto, Lucie Riu, Lionel Lourit, Damien Loizeau, Guillaume Lequertier, Aurelie Moussi-Soffys, Shogo Tachibana, Hirotaka Sawada, Ryuji Okazaki, Yoshinori Takano, Kanako Sakamoto, Yayoi N. Miura, Hajime Yano, Trevor R. Ireland, Tetsuya Yamada, Masaki Fujimoto, Kohei Kitazato, Noriyuki Namiki, Masahiko Arakawa, Naru Hirata, Hisayoshi Yurimoto, Tomoki Nakamura, Takaaki Noguchi, Hikaru Yabuta, Hiroshi Naraoka, Motoo Ito, Eizo Nakamura, Kentaro Uesugi, Katsura Kobayashi, Tatsuhiro Michikami, Hiroshi Kikuchi, Naoyuki Hirata, Yoshiaki Ishihara, Koji Matsumoto, Hirotomo Noda, Rina Noguchi, Yuri Shimaki, Kei Shirai, Kazunori Ogawa, Koji Wada, Hiroki Senshu, Yukio Yamamoto, Tomokatsu Morota, Rie Honda, Chikatoshi Honda, Yasuhiro Yokota, Moe Matsuoka, Naoya Sakatani, Eri Tatsumi, Akira Miura, Manabu Yamada, Atsushi Fujii, Chikako Hirose, Satoshi Hosoda, Hitoshi Ikeda, Takahiro Iwata, Shota Kikuchi, Yuya Mimasu, Osamu Mori, Naoko Ogawa, Go Ono, Takanobu Shimada, Stefania Soldini, Tadateru Takahashi, Yuto Takei, Hiroshi Takeuchi, Ryudo Tsukizaki, Kent Yoshikawa, Fuyuto Terui, Satoru Nakazawa, Satoshi Tanaka, Takanao Saiki, Makoto Yoshikawa, Sei-ichiro Watanabe, Yuichi Tsuda
Summary: Research on the samples returned from Ryugu by Hayabusa2 found that they mainly consist of rugged and smooth particles of millimetre to submillimetre size, with lower density than meteorites, suggesting high microporosity. The carbonaceous composition with indigenous aqueous alteration confirms the similarity of Ryugu to CI chondrites, but with lower albedo, higher porosity, and more fragile characteristics.
Article
Geosciences, Multidisciplinary
Michel Pichavant, Ida Di Carlo, Massimo Pompilio, Nolwenn Le Gall
Summary: This study presents new textural and petrological data on five paroxysms at Stromboli volcano and uses this data to explore the timescales and triggering models of these eruptions. The results show variations in magma type and composition among the paroxysm samples, as well as fast ascent rates for LP magma. The findings also shed light on the different roles of the deep and shallow feeding systems at the volcano.
BULLETIN OF VOLCANOLOGY
(2022)
Article
Geosciences, Multidisciplinary
Gilda Risica, Alessio Di Roberto, Fabio Speranza, Paola Del Carlo, Massimo Pompilio, Stavros Meletlidis, Alessandro Todrani
Summary: This study reconstructs the timing of Holocene eruptions in El Hierro and finds uneven distribution of eruptions along three main rifts. The study identifies two periods of high eruption frequency, which are crucial for correctly assessing the volcanic hazard in the area.
JOURNAL OF VOLCANOLOGY AND GEOTHERMAL RESEARCH
(2022)
Article
Geochemistry & Geophysics
Nghiem Van Dao, Hiroshi Kitagawa, Eizo Nakamura, Katsura Kobayashi, Thanh Xuan Ngo, Son Hai Trinh
Summary: Vietnam is a major area of volcanic activity in Southeast Asia. This study presents new geochronological and geochemical data for Cenozoic basalts in Vietnam to provide constraints on their origin. The results show chemically distinct sources of basalts in Central and Southern Vietnam, with a clear boundary at 13.5 degrees N. The basalts north of the boundary have isotopic features similar to Enriched Mantle type 2 (EM2) ocean island basalts, while the basalts south of the boundary have isotopic features similar to Enriched Mantle type 1 (EM1) ocean island basalts. These features suggest that the sources of the basalts are generated through the recycling of deeply-subducted crustal lithologies. The subduction of dense oceanic lithosphere can also induce a convecting cell in the upper mantle. Therefore, the different chemistries of basalts in Central and Southern Vietnam represent the surface expression of melting in two different convecting cells, driven by subduction of the Pacific plate and the Indo-Australian plate, respectively.
JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH
(2022)
Article
Geosciences, Multidisciplinary
Claudia D'Oriano, Paola Del Carlo, Daniele Andronico, Raffaello Cioni, Pietro Gabellini, Antonio Cristaldi, Massimo Pompilio
Summary: Low-intensity emission of volcanic ash is the most frequent eruptive activity worldwide, characterized by heterogeneous texture and composition. Lack of precursor signals makes petrological monitoring the only way to understand the mechanisms and evolution.
FRONTIERS IN EARTH SCIENCE
(2022)
Article
Multidisciplinary Sciences
Eizo Nakamura, Katsura Kobayashi, Ryoji Tanaka, Tak Kunihiro, Hiroshi Kitagawa, Christian Potiszil, Tsutomu Ota, Chie Sakaguchi, Masahiro Yamanaka, Dilan M. Ratnayake, Havishk Tripathi, Rahul Kumar, Maya-Liliana Avramescu, Hidehisa Tsuchida, Yusuke Yachi, Hitoshi Miura, Masanao Abe, Ryota Fukai, Shizuho Furuya, Kentaro Hatakeda, Tasuku Hayashi, Yuya Hitomi, Kazuya Kumagai, Akiko Miyazaki, Aiko Nakato, Masahiro Nishimura, Tatsuaki Okada, Hiromichi Soejima, Seiji Sugita, Ayako Suzuki, Tomohiro Usui, Toru Yada, Daiki Yamamoto, Kasumi Yogata, Miwa Yoshitake, Masahiko Arakawa, Atsushi Fujii, Masahiko Hayakawa, Naoyuki Hirata, Naru Hirata, Rie Honda, Chikatoshi Honda, Satoshi Hosoda, Yu-ichi Iijima, Hitoshi Ikeda, Masateru Ishiguro, Yoshiaki Ishihara, Takahiro Iwata, Kosuke Kawahara, Shota Kikuchi, Kohei Kitazato, Koji Matsumoto, Moe Matsuoka, Tatsuhiro Michikami, Yuya Mimasu, Akira Miura, Tomokatsu Morota, Satoru Nakazawa, Noriyuki Namiki, Hirotomo Noda, Rina Noguchi, Naoko Ogawa, Kazunori Ogawa, Chisato Okamoto, Go Ono, Masanobu Ozaki, Takanao Saiki, Naoya Sakatani, Hirotaka Sawada, Hiroki Senshu, Yuri Shimaki, Kei Shirai, Yuto Takei, Hiroshi Takeuchi, Satoshi Tanaka, Eri Tatsumi, Fuyuto Terui, Ryudo Tsukizaki, Koji Wada, Manabu Yamada, Tetsuya Yamada, Yukio Yamamoto, Hajime Yano, Yasuhiro Yokota, Keisuke Yoshihara, Makoto Yoshikawa, Kent Yoshikawa, Masaki Fujimoto, Sei-ichiro Watanabe, Yuichi Tsuda
Summary: This comprehensive analysis of 16 particles returned from the C-type asteroid Ryugu by the Hayabusa2 mission reveals important findings about its composition and origin. The particles consist of phyllosilicate matrix, porosity, minor phases, and organic matter. The abundances of elements in the particles are similar to those found in CI chondrites, suggesting that Ryugu sampled the most primitive protosolar nebula reservoirs. The analysis also suggests that complex soluble organic matter formed during aqueous alteration on the Ryugu progenitor planetesimal.
PROCEEDINGS OF THE JAPAN ACADEMY SERIES B-PHYSICAL AND BIOLOGICAL SCIENCES
(2022)
Article
Multidisciplinary Sciences
Giuseppe Re, Massimo Pompilio, Paola Del Carlo, Alessio Di Roberto
Summary: The article reports on the ash cloud caused by the collapse of the Stromboli volcano crater rim on May 19, 2021. The ash cloud spread eastward and deposited a layer of fine pinkish ash over the village of Stromboli. The study compares the ash deposit with previous deposits related to other volcanic events and provides insights into the characteristics of the ash cloud. The results suggest that the distribution of mass and grain size is not correlated with the distance from the source, and the fine ash is mainly attributed to the fragmentation of clasts.
SCIENTIFIC REPORTS
(2022)
Article
Geosciences, Multidisciplinary
S. Calvari, F. Di Traglia, G. Ganci, V. Bruno, F. Ciancitto, B. Di Lieto, S. Gambino, A. Garcia, F. Giudicepietro, S. Inguaggiato, F. Vita, M. Cangemi, C. Inguaggiato, G. Macedonio, M. Mattia, L. Miraglia, T. Nolesini, M. Pompilio, P. Romano, G. Salerno, N. Casagli, G. Re, P. Del Carlo, A. Di Roberto, A. Cappello, C. Corradino, E. Amato, F. Torrisi, C. Del Negro, A. M. Esposito, W. De Cesare, T. Caputo, M. F. Buongiorno, M. Musacchio, V. Romaniello, M. Silvestri, E. Marotta, R. Avino, G. Avvisati, P. Belviso
Summary: This paper presents the preparatory phase and eruptive activity of Stromboli volcano from December 2020 to June 2021. The authors integrate multidisciplinary monitoring data to analyze the volcano's activity comprehensively and highlight the significant implications of these complex eruption scenarios for hazard assessment.
FRONTIERS IN EARTH SCIENCE
(2022)
Article
Multidisciplinary Sciences
Christian Potiszil, Tsutomu Ota, Masahiro Yamanaka, Chie Sakaguchi, Katsura Kobayashi, Ryoji Tanaka, Tak Kunihiro, Hiroshi Kitagawa, Masanao Abe, Akiko Miyazaki, Aiko Nakato, Satoru Nakazawa, Masahiro Nishimura, Tatsuaki Okada, Takanao Saiki, Satoshi Tanaka, Fuyuto Terui, Yuichi Tsuda, Tomohiro Usui, Sei-ichiro Watanabe, Toru Yada, Kasumi Yogata, Makoto Yoshikawa, Eizo Nakamura
Summary: All life on Earth contains amino acids, and carbonaceous chondrite meteorites have been suggested as their source at the origin of life on Earth. This study reports the concentrations of amino acids from two particles (TD1 and TD2) from the Ryugu asteroid fragments. The results show that N,N-dimethylglycine (DMG) is the most abundant amino acid in the TD1 particle, but below detection limit in the other. The mineral components of the TD1 particle indicate it experienced more aqueous alteration, and the relationships between the amino acids and the geochemistry suggest that DMG formed during aqueous alteration on the Ryugu progenitor body. The findings highlight the importance of aqueous chemistry in determining the concentrations of amino acids in primitive extraterrestrial samples.
NATURE COMMUNICATIONS
(2023)
Review
Astronomy & Astrophysics
Tsutomu Ota, Christian Potiszil, Katsura Kobayashi, Ryoji Tanaka, Hiroshi Kitagawa, Tak Kunihiro, Chie Sakaguchi, Masahiro Yamanaka, Eizo Nakamura
Summary: The Hayabusa2 mission brought back primitive samples from the C-type asteroid Ryugu, which holds important clues to the origin of Earth's water and the building blocks of life. The rubble pile structure of C-type asteroids is crucial to their origin and evolution, and the analysis of the Ryugu samples revealed high microporosity, suggesting that Ryugu is not just a loosely bound agglomeration of rocky debris. To better understand the rubble pile asteroid, the current hypothesis needs to be verified and improved based on observations and laboratory analyses.
Article
Chemistry, Physical
Chen Chen, Ruiqin Yi, Motoko Igisu, Chie Sakaguchi, Rehana Afrin, Christian Potiszil, Tak Kunihiro, Katsura Kobayashi, Eizo Nakamura, Yuichiro Ueno, Andre Antunes, Anna Wang, Kuhan Chandru, Jihua Hao, Tony Z. Jia
Summary: Alpha-hydroxy acids can react to form polyester gels that can arrange into membraneless microdroplets. These microdroplets, proposed as protocells, can segregate and compartmentalize primitive molecules/reactions. Different primitive aqueous environments with various salts could have allowed the formation of polyester microdroplets. This study investigates the interactions between polyester and salt ions, using spectroscopic and biophysical methods to analyze salt uptake and its effects on microdroplet properties.
Review
Biology
Christian Potiszil, Masahiro Yamanaka, Chie Sakaguchi, Tsutomu Ota, Hiroshi Kitagawa, Tak Kunihiro, Ryoji Tanaka, Katsura Kobayashi, Eizo Nakamura
Summary: Organic matter, which is essential for life on Earth, can also be found in the Solar System and the universe in general. The Japan Aerospace Exploration Agency (JAXA) sent the Hayabusa2 spacecraft to collect samples from the near-earth asteroid Ryugu in order to study the organic matter. This review provides information about the mission, the nature of the analyzed organic matter, and the interpretations of the analytical findings, highlighting the current theories and remaining questions regarding Ryugu's formation and evolution. The review is important for interdisciplinary fields such as planetary science, astrobiology, the origin of life, and astronomy.
Article
Geochemistry & Geophysics
C. Potiszil, R. Tanaka, T. Ota, T. Kunihiro, K. Kobayashi, E. Nakamura
GEOCHEMICAL PERSPECTIVES LETTERS
(2020)