Search Results - "Hattori, Kéiko H."

Arsenic Behavior in Paddy Fields during the Cycle of Flooded and Non-flooded Periods by Takahashi, Yoshio, Minamikawa, Reiko, Hattori, Kéiko H, Kurishima, Katsuaki, Kihou, Nobuharu, Yuita, Kouichi

“…The behavior of As in paddy fields is of great interest considering high As contents of groundwater in several Asian countries where rice is the main staple…”
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The Quetico Intrusions of Western Superior Province: Neo-Archean examples of Alaskan/Ural-type mafic–ultramafic intrusions by Pettigrew, Neil T., Hattori, Kéiko H.

“…The Quetico Intrusions are a series of ultramafic–mafic igneous rocks that occur along the northern Quetico subprovince boundary. These intrusions show…”
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Contribution of mafic melt to porphyry copper mineralization: evidence from Mount Pinatubo, Philippines, and Bingham Canyon, Utah, USA by Hattori, Kéiko H., Keith, Jeffrey D.

“…Mount Pinatubo in the Philippines, known for its cataclysmic eruption in 1991, hosts several porphyry copper deposits and active geothermal systems. An…”
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Corundum-bearing garnet peridotite from northern Dominican Republic: A metamorphic product of an arc cumulate in the Caribbean subduction zone by Hattori, Kéiko H., Guillot, Stéphane, Saumur, Benoit-Michel, Tubrett, Mike N., Vidal, Olivier, Morfin, Samuel

“…Garnet peridotite in oceanic subduction complexes has been reported only in two locations in the world. One of these examples occurs in the late Cretaceous to…”
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Metasomatism of sub-arc mantle peridotites below southernmost South America: reduction of fO2 by slab-melt by Wang, Jian, Hattori, Kéiko H., Kilian, Rolf, Stern, Charles R.

“…Quaternary basalts in the Cerro del Fraile area contain two types of mantle xenoliths; coarse-grained (2-5 mm) C-type spinel harzburgites and lherzolites, and…”
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Evidence of hydration of the mantle wedge and its role in the exhumation of eclogites by Guillot, Stéphane, Hattori, Kéiko H., de Sigoyer, Julia, Nägler, Thomas, Auzende, Anne-Line

“…Serpentinite samples from the Indus suture zone, representing a shallower part of a paleo-subduction zone, show low-grade metamorphic recrystallization…”
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Geochemistry of peat over kimberlites in the Attawapiskat area, James Bay Lowlands, northern Canada by Hattori, Kéiko H., Hamilton, Stewart

“…The James Bay Lowlands, which is the SE part of the Hudson Bay Lowlands, Canada, and within the Paleozoic limestone terrane, is covered mostly by peatlands…”
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Seafloor hydrothermal clay alteration at Jade in the back-arc Okinawa Trough: mineralogy, geochemistry and isotope characteristics by Marumo, Katsumi, Hattori, Kéiko H.

“…Seafloor hydrothermal activity at Jade has resulted in extensive alteration of the host epiclastic sediments and pumiceous tuffs, forming mica, kaolins…”
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Magmatic mineralization and hydrothermal enrichment of the High Grade Zone at the Lac des Iles palladium mine, northern Ontario, Canada by Hinchey, John G., Hattori, Kéiko H.

“…The economic mineralization of Pd at the Lac des Iles mine occurs in the gabbroic rocks of the Mine Block Intrusion in the 2.69 Ga Lac des Iles Intrusive…”
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Lead isotope study of the late Archean Lac des Iles palladium deposit, Canada: enrichment of platinum group elements by ponded sulfide melt by Hinchey, John G., Hattori, Kéiko H.

“…Lead isotopic compositions of mineral separates are presented from the mineralized zones (Roby, Twilight, and High Grade zones) of the Lac des Iles palladium…”
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Geochemistry of apatite-rich layers in the Finero phlogopite–peridotite massif (Italian Western Alps) and ion microprobe dating of apatite by Morishita, Tomoaki, Hattori, Kéiko H., Terada, Kentaro, Matsumoto, Takuya, Yamamoto, Koshi, Takebe, Masamichi, Ishida, Yoshito, Tamura, Akihiro, Arai, Shoji

“…Highly metasomatized apatite-rich peridotite layers (AP-layer) occur in the Finero phlogopite–peridotite massif (western Italian Alps). The AP-layer and the…”
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The Gandy and Abolhassani epithermal prospects in the Alborz magmatic arc, Semnan Province, northern Iran by Shamanian, Gholam Hossein, Hedenquist, Jeffrey W, Hattori, Keiko H, Hassanzadeh, Jamshid

“…The Gandy and Abolhassani epithermal precious and base metal deposits occur in the Torud-Chah Shirin mountain range in the Alborz magmatic belt of northern…”
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Source and tectono-metamorphic evolution of mafic and pelitic metasedimentary rocks from the central Quetico metasedimentary belt, Archean Superior Province of Canada by Valli, Franck, Guillot, Stephane, Hattori, Kéiko H

“…A study of the sedimentary rocks in the Jean Lake area of the Quetico metasedimentary belt, Superior Province, Canada, was conducted in order to evaluate the…”
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Using the high mobility of palladium in surface media in exploration for platinum group element deposits; evidence from the Lac des Iles region, northwestern Ontario by Hattori, Keiko H, Cameron, Eion M

“…Platinum group element (PGE) mineralization is commonly accompanied by large amounts of Ni-Fe sulfides, which are explored for using a variety of geophysical…”
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A geochemical study on mud volcanoes in the Junggar Basin, China by Nakada, Ryoichi, Takahashi, Yoshio, Tsunogai, Urumu, Zheng, Guodong, Shimizu, Hiroshi, Hattori, Keiko H.

“…► Gases released from Xinjiang mud volcanoes are dominated by thermogenic origin. ► Secondary microbial activities occurring closer to the surface dramatically…”
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Adsorption of rare earth elements onto bacterial cell walls and its implication for REE sorption onto natural microbial mats by Takahashi, Yoshio, Châtellier, Xavier, Hattori, Keiko H., Kato, Kenji, Fortin, Danielle

“…Adsorption of rare earth elements (REE) onto the cell walls of Bacillus subtilis (a gram-positive bacterium) and Escherichia coli (a gram-negative bacterium)…”
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Oxidation state of Paleozoic subcontinental lithospheric mantle below the Pali Aike volcanic field in southernmost Patagonia by Wang, Jian, Hattori, Keiko H., Li, Jianping, Stern, Charles R.

“…Mantle xenoliths in the Quaternary Pali Aike alkaline basalts of southernmost Patagonia include lherzolites and harzburgites with and without garnet. The…”
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The influence of buried kimberlite on methane production in overlying sediment, Attawapiskat region, James Bay Lowlands, Ontario by Sader, Jamil A., Hattori, Keiko H., Brauneder, Kerstin, Hamilton, Stewart M.

“…Shallow groundwaters were collected over and near buried kimberlites in the Attawapiskat River region of the James Bay Lowlands, Ontario, Canada in order to…”
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Initial geometry of western Himalaya and ultrahigh-pressure metamorphic evolution by Guillot, Stéphane, Replumaz, Anne, Hattori, Kéiko H., Strzerzynski, Pierre

“…Ultrahigh-pressure metamorphic rocks on both sides of the western Himalayan syntaxis show different P–T–t paths. The Kaghan unit was metamorphosed under the…”
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Metasomatic origin of garnet orthopyroxenites in the subcontinental lithospheric mantle underlying Pali Aike volcanic field, southern South America by Wang, Jian, Hattori, Keiko H., Stern, Charles R.

“…Garnet-bearing orthopyroxenites occur as both discrete xenoliths and as veinlets in peridotite xenoliths that were brought to the surface by Quaternary Pali…”
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