Search Results - "Yasuhito Osanai"

Removal of lead and other toxic metals in heavily contaminated soil using biodegradable chelators: GLDA, citric acid and ascorbic acid by Thinh, Nguyen Van, Osanai, Yasuhito, Adachi, Tatsuro, Vuong, Bui Thi Sinh, Kitano, Ippei, Chung, Nguyen Thuy, Thai, Phong K.

“…In this study, we investigated the level of contamination of agricultural soil near an old recycling lead smelter in Vietnam and proposed an effective…”
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Age, petrologic significance and provenance analysis of the Hamedan low-pressure migmatites; Sanandaj-Sirjan Zone, west Iran by Sepahi, Ali Asghar, Jafari, Seyedeh Razieh, Osanai, Yasuhito, Shahbazi, Hossein, Moazzen, Mohssen

“…Meta-pelitic rocks with interlayers of meta-psammites within the inner thermal aureole of the Alvand plutonic complex (Sanandaj-Sirjan Zone (SaSZ), western…”
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Timing of high-grade metamorphism in the Kontum Massif, Vietnam: Constraints from zircon–monazite multi-geochronology and trace elements geochemistry of zircon–monazite–garnet by Bui, Vuong Thi Sinh, Osanai, Yasuhito, Nakano, Nobuhiko, Adachi, Tatsuro, Kitano, Ippei, Owada, Masaaki

“…[Display omitted] •New zircon–monazite ages constrained the timings of HT metamorphism, Kontum Massif.•HT-metamorphism, Kannak Complex, happened at ca. 250 Ma,…”
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Petrology and zircon U–Pb geochronology of pelitic gneisses and granitoids from the Dai Loc Complex in the Truong Son Belt, Vietnam: Implication for the Silurian magmatic-metamorphic event by Bui Thi Sinh, Vuong, Osanai, Yasuhito, Nakano, Nobuhiko, Kitano, Ippei, Adachi, Tatsuro, Tran Tuan, Anh, Pham, Binh

“…[Display omitted] •Garnet porphyroblasts in the Dai Loc metapelites preserved two metamorphic stages.•High temperature metamorphism happened at 430–440 Ma,…”
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Tectonic evolution of high-grade metamorphic terranes in central Vietnam: Constraints from large-scale monazite geochronology by Nakano, Nobuhiko, Osanai, Yasuhito, Owada, Masaaki, Nam, Tran Ngoc, Charusiri, Punya, Khamphavong, Keo

“…•Age mapping of high-grade metamorphic terranes in central Vietnam was performed.•Triassic, Ordovician–Silurian, and Mesoproterozoic ages were obtained.•PT…”
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Petrology and geochronology of andalusite- and sillimanite-bearing kyanite metapelites from the Gobi Altai Mountains: Evidence for prolonged convergent tectonics in the Central Asian Orogenic Belt by Nakano, Nobuhiko, Osanai, Yasuhito, Jargalan, Sereenen, Adachi, Tatsuro, Dolzodmaa, Boldbaatar, Kundyz, Syeryekkhaan, Owada, Masaaki, Satish-Kumar, M.

“…To further constrain the tectonic evolution of the convergent margin of the West Mongolian segment in the Paleo–Asian Ocean, we have investigated…”
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Experimental evidence of bulk chemistry constraint on SiO2 solubility in clinopyroxene at high-pressure conditions by Kawasaki, Toshisuke, Osanai, Yasuhito

“…We have experimentally confirmed that the solubility of SiO2 in clinopyroxene at ultrahigh-pressure metamorphic conditions is buffered by coesite and kyanite…”
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Arsenic Speciation and Extraction and the Significance of Biodegradable Acid on Arsenic Removal—An Approach for Remediation of Arsenic-Contaminated Soil by Nguyen Van, Thinh, Osanai, Yasuhito, Do Nguyen, Hai, Kurosawa, Kiyoshi

“…A series of arsenic remediation tests were conducted using a washing method with biodegradable organic acids, including oxalic, citric and ascorbic acids…”
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Timing of magmatism and ultrahigh- to high-grade metamorphism in the Kannak Complex, Kon Tum Massif, Vietnam: Magmatic activity and its tectonic implications by Owada, Masaaki, Osanai, Yasuhito, Nakano, Nobuhiko, Kitano, Ippei, Adachi, Tatsuro, Binh, Pham, Tri, Tran Van

“…•Magmatic activity started at 260 Ma and ceased at 240 Ma in the Kon Tum Massif.•Tectonothermal event in occurred with relation to upwelling of mantle…”
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Bauxite to eclogite: Evidence for late Permian supracontinental subduction at the Red River shear zone, northern Vietnam by Nakano, Nobuhiko, Osanai, Yasuhito, Nam, Nguyen Van, Tri, Tran Van

“…We have investigated the geological processes recorded in aluminous granulites from the Red River shear zone in northern Vietnam using mineral and whole-rock…”
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Geologic evolution of the Sør Rondane Mountains, East Antarctica: Collision tectonics proposed based on metamorphic processes and magnetic anomalies by Osanai, Yasuhito, Nogi, Yoshifumi, Baba, Sotaro, Nakano, Nobuhiko, Adachi, Tatsuro, Hokada, Tomokazu, Toyoshima, Tsuyoshi, Owada, Masaaki, Satish-Kumar, Madhusoodhan, Kamei, Atsushi, Kitano, Ippei

“…•The Sør Rondane Mountains is subdivided into two different crustal terranes.•Two different types collision metamorphism are identified divided by the…”
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Chemical speciation and bioavailability concentration of arsenic and heavy metals in sediment and soil cores in estuarine ecosystem, Vietnam by Thinh, Nguyen Van, Osanai, Yasuhito, Adachi, Tatsuro, Thai, Phong K., Nakano, Nobuhiko, Ozaki, Akinori, Kuwahara, Yoshihiro, Kato, Ryosuke, Makio, Masato, Kurosawa, Kiyoshi

“…The first investigation of arsenic (As) contamination in soil cores in the biggest estuarine ecosystem in northern Vietnam was conducted using FE-EPMA, ICP-MS…”
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Zircon U–Pb geochronology and geochemistry of granitic rocks in central Mongolia by Dolzodmaa, Boldbaatar, Osanai, Yasuhito, Nakano, Nobuhiko, Adachi, Tatsuro

“…The Central Asian Orogenic Belt had been formed by amalgamation of voluminous subduction–accretionary complexes during the Late Neoproterozoic to the Mesozoic…”
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Timing of metamorphism in the central Sør Rondane Mountains, eastern Dronning Maud Land, East Antarctica: Constrains from SHRIMP zircon and EPMA monazite dating by Adachi, Tatsuro, Osanai, Yasuhito, Hokada, Tomokazu, Nakano, Nobuhiko, Baba, Sotaro, Toyoshima, Tsuyoshi

“…► Two metamorphic events recognized in the Sør Rondane Mountains. ► Granulite-facies metamorphism related to main collision took place at ca. 600–640Ma. ►…”
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Magmatic history and evolution of continental lithosphere of the Sør Rondane Mountains, eastern Dronning Maud Land, East Antarctica by Owada, Masaaki, Kamei, Atsushi, Horie, Kenji, Shimura, Toshiaki, Yuhara, Masaki, Tsukada, Kazuhiro, Osanai, Yasuhito, Baba, Sotaro

“…► Proterozoic (990–950Ma) microgabbros were derived from depleted sources. ► Pan-African (∼560Ma) minettes having enriched-Nd isotopic signatures. ► The…”
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Unraveling the metamorphic history at the crossing of Neoproterozoic orogens, Sør Rondane Mountains, East Antarctica: Constraints from U–Th–Pb geochronology, petrography, and REE geochemistry by Hokada, Tomokazu, Horie, Kenji, Adachi, Tatsuro, Osanai, Yasuhito, Nakano, Nobuhiko, Baba, Sotaro, Toyoshima, Tsuyoshi

“…► Grt-Sil-Bt gneiss and three sets of leucocratic veins occur in Sør Rondane Mountains. ► We analyzed zircon, monazite and garnet by SHRIMP and EMP. ► U–Th–Pb…”
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Trace toxic elements in agricultural soil and sediment in the biggest estuarine area, northern Vietnam by Van Thinh, Nguyen, Ozaki, Akinori, Osanai, Yasuhito, Kurosawa, Kiyoshi

“…Soil quality, especially its toxic elements content, plays an important part in clarifying the sustainability of an estuarine ecosystem. In this study, six…”
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Oxidation States of Fe in Constituent Minerals of a Spinel Lherzolite Xenolith from the Tariat Depression, Mongolia: The Significance of Fe3+ in Olivine by Terumi Ejima, Yasuhito Osanai, Masahide Akasaka, Tatsuro Adachi, Nobuhiko Nakano, Yoshiaki Kon, Hiroaki Ohfuji, Jargalan Sereenen

“…The oxidation states of Fe within olivine, orthopyroxene, clinopyroxene, and spinel in a spinel lherzolite xenolith from the Tariat Depression, Mongolia were…”
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Repeated magmatism at 34Ma and 23-20Ma producing high magnesian adakitic andesites and transitional basalts on southern Okushiri Island, NE Japan arc by Sato, Makoto, Shuto, Kenji, Nohara-Imanaka, Rikako, Takazawa, Eiichi, Osanai, Yasuhito, Nakano, Nobuhiko

“…The southern part of Okushiri Island in the present-day back-arc margin of the NE Japan arc is one of the rare convergent plate boundaries where similar magma…”
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Triassic eclogite from northern Vietnam: inferences and geological significance by NAKANO, N., OSANAI, Y., SAJEEV, K., HAYASAKA, Y., MIYAMOTO, T., MINH, N. T., OWADA, M., WINDLEY, B.

“…The first finding of low‐temperature eclogites from the Indochina region is reported. The eclogites occur along the Song Ma Suture zone in northern Vietnam,…”
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