Tsuchiya Noriyoshi

Tsuchiya Noriyoshi
Tohoku University | Tohokudai · Graduate School of Environmental Studies

Professor

About

271
Publications
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2,798
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Publications

Publications (271)
Article
We examined the silicification zone in a granite-porphyry system in order to investigate the caprocks in a supercritical geothermal system. At the top of the granite intrusion, a high-temperature silicification zone contains three generations of quartz. The earliest generation formed at higher temperatures and has bright luminescence and high Ti co...
Article
Geological data were used to explore the geological structure and hydrothermal alteration distribution of the Sengan area, Northeast Japan. Acidic alteration and high-temperature hot springs surround several Quaternary volcanoes within the Sengan area. Quaternary intrusive granitic-dioritic rocks are distributed beneath the Kakkonda, Matsukawa, and...
Article
The probable locations of ultra-high-temperature geothermal reservoirs in the Kakkonda geothermal field were modeled under varying conditions using resistivity and temperature data. The results indicate that ultra-high-temperature geothermal reservoirs are likely present at elevations of ≥ –4000 m. The centers of these reservoirs, characterized by...
Article
Magnetotelluric (MT) surveys have revealed the existence of subvertical conductors at depths of several kilometers in the volcanic and geothermal areas of northern Japan. The conductive anomalies suggest that saline magmatic fluids are trapped within or in the vicinity of granitic intrusions and potentially form supercritical geothermal reservoirs....
Article
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This study aimed to provide important insights into Pacific Ocean sea-level changes by clarifying salinity changes in Lake Ogawara on the Pacific coast of northeast Japan, which became brackish in the late Holocene. Radiocarbon (¹⁴C) dating, tephrochronology, and geochemical signatures, including bromine (Br), iodine (I), total sulfur (TS), total o...
Article
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Development of geothermal power plants and local geothermal energy initiatives have lagged due to the social problems such as conflicts with stakeholders such as Onsen (Hot Spa) owners, despite the abundant geothermal resources. Study area was Tsuchiyu Onsen in Fukushima prefecture, Tohoku (Northeast) District, Japan, where the Great East Japan Ear...
Article
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Fluids within the Earth's crust may exist under supercritical conditions (i.e., >374°C and >22.1 MPa for pure water). Supercritical geothermal reservoirs at depths of 2–10 km below the surface in northeastern (NE) Japan mainly consist of magmatic fluids that exsolved from the melt during the course of fractional crystallization. Supercritical geoth...
Article
We report here our investigations into the petrology and geochemistry of the Khungui eclogites and metamorphosed continental crust in the Central Asian Orogenic Belt (CAOB), Western Mongolia. The eclogites consist mainly of garnet, omphacite, amphibole, Ti-bearing minerals, phengite, quartz, epidote, and plagioclase. Two types of garnet occur: Grt1...
Article
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The mass transfer history of rocks provides direct evidence for fluid–rock interaction within the lithosphere and is recorded by compositional changes, especially in trace elements. The general method adopted for mass transfer analysis is to compare the composition of the protolith/precursor with that of metamorphosed/altered rocks; however, in man...
Article
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Hydration and carbonation reactions within the Earth cause an increase in solid volume by up to several tens of vol%, which can induce stress and rock fracture. Observations of naturally hydrated and carbonated peridotite suggest that permeability and fluid flow are enhanced by reaction-induced fracturing. However, permeability enhancement during s...
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Serpentinization of ultramafic rocks in ophiolites is key to understanding the global cycle of elements and changes in the physical properties of lithospheric mantle. Mongolia, a central part of the Central Asian Orogenic Belt (CAOB), contains numerous ophiolite complexes, but the metamorphism of ultramafic rocks in these ophiolites has been little...
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Mining legacies continue to impact the geochemical cycles in historically mined watersheds after mine closure. The Hokuroku District in Northeast Japan is a famous metal mining area with a long mining history; however, studies on the distribution mechanisms and pollution characteristics of heavy metals in these historically mined watersheds after t...
Article
This study explored a key challenge of aqueous indirect CO2 mineralization: the consumption of chemicals for a large pH swing between acidic and alkaline conditions and the production of waste fluid. Herein, we proposed and experimentally examined the technical feasibility of a sustainable process for enhanced CO2 mineralization using a new potenti...
Article
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Quantitative and semi–quantitative procedures using a portable energy dispersive X–ray fluorescence spectrometer (portable XRF) were applied to geochemical studies in fault rocks, lake sediments, and soils, including paleotsunami deposits. The results obtained are as follows: 1) Correlation coefficients (r2; measured values by portable XRF versus r...
Article
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Magnetite veins are commonly observed in serpentinized peridotite, but the mobility of iron during serpentin-ization is poorly understood. The completely serpentinized ultramafic rocks (originally dunite) in the Taishir Massif in the Khantaishir ophiolite, western Mongolia, contain abundant antigorite + magnetite (Atg + Mag) veins, which show an un...
Article
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The absolute date of the Millennium Eruption (ME) of Changbaishan Volcano is widely recognized as AD 946. The Baegdusan-Tomakomai (B-Tm) tephra dispersed during the ME is a robust-age key bed. In order to identify the tephra, refractive index and major-element compositions of volcanic glass shards are conventionally used. Meanwhile, trace- element...
Article
Mineral–fluid equilibria in supercritical geothermal reservoirs is poorly understood, due to the non-applicability of the Helgeson–Kirkham–Flowers (HKF) electrostatic model for aqueous species in low-density regions. We experimentally investigated the dissolution equilibria of albite–K-feldspar–quartz in hydrothermal solutions at 400, 420 °C and 20...
Article
Hydrogen is gaining attention as an energy source, but its production through fossil-fuel use is not environmentally friendly. A more sustainable source could be the hydrothermal reaction involving aluminum and water reaction, which owns technical issues on aluminum passivation and material sources for the upscale application. This study analyzes t...
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The Pacific coast of Japan has repeatedly suffered earthquakes with magnitudes greater than Mw 8 and accompanying tsunami on coastal areas. Estimating the inundation area of paleotsunami using event deposits in sediment layers can inform and reduce possible damages from future earthquakes and tsunami. In addition to geological and sedimentological...
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Superhot geothermal environments with temperatures of approximately 400–500 °C at depths of approximately 2–4 km are attracting attention as new kind of geothermal resource. In order to effectively exploit the superhot geothermal resource through the creation of enhanced geothermal systems (superhot EGSs), hydraulic fracturing is a promising techni...
Preprint
Full-text available
Mass transfer in rocks provides a direct record of fluid–rock interaction within the Earth, including metamorphism, metasomatism, and hydrothermal alteration. However, mass transfer analyses are usually limited to local reaction zones where the protoliths are evident in outcrops (1–100 m in scale), from which regional mass transfer can be only loos...
Conference Paper
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Fluid activity in the crust is a key process controlling the generations of earthquakes, magmas, ore deposition formation and deep geothermal activities. Although high pore fluid pressure has been recognized by geophysical observations and geological observations of mineral filled fractures, the actual fluid pressure, their durations and associated...
Article
In volcanic zones, geophysical observations have identified the presence of deep-seated fluids around intrusions in the mid-crust. However, the fluid compositions and mechanisms of fluid migration at high temperatures in the crust are still poorly understood. In this study, we investigated plagioclase alteration in mafic schists (clinopyroxene [Cpx...
Conference Paper
Full-text available
Fluids in the deep crust promote heat and mass transport, control rock rheology and fracturing, and play essential roles on the dynamics of plate boundaries. Although fluid activities are geophysically recognized as migrations of hypocenters and seismic velocity anomalies, their actual relations with geological records are not always clear due to d...
Article
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The mechanisms of fluid penetration through the gabbroic lower crust are important for the hydration of oceanic lithosphere. In the Oman ophiolite, which preserves an entire sequence of oceanic lithosphere formed at a fast‐spreading ridge, the layered gabbros and dunites are extensively serpentinized. In this paper, we describe the characteristic t...
Article
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Petrological and fluid inclusion data were used to characterize multiple generations of veins within the Erdenet Cu–Mo deposit, Mongolia, and constrain the evolution of fluids within the magmatic–hydrothermal system. Three types of veins are present (from early to late): quartz–molybdenite, quartz–pyrite, and quartz. The host rock was emplaced at t...
Article
Potential tsunami inundation areas can be predicted by the distribution of paleo tsunami deposits on land, which are mainly composed of marine-derived sands and muds. These exotic sandy and muddy layers have been identified by multiple approaches. However, there still remain uncertainties regarding the sources and weathering trends over the long te...
Article
Permeability is a key control on fluid infiltration in the crust. However, quantitative geological constraints on crustal permeability are limited, particularly with regards to its temporal evolution. Here we constrain the permeability evolution in the middle–lower crust, based on metamorphic processes associated with fluid infiltration and crustal...
Article
Superhot geothermal environments in granitic crusts of ca. 400–500 °C and depths of 2–4 km are recognized as a frontier of geothermal energy. In developing such environments, hydraulic fracturing is a promising way to create or recreate permeable fracture networks to effectively access the energy through enhanced geothermal systems (EGS). However,...
Article
Silica activity in fluids is a key factor that controls reaction pathways during the hydrothermal alteration of olivine in the oceanic lithosphere. In this study, we conducted hydrothermal experiments (300°C, 8.58 MPa) on the olivine (Ol)–quartz (Qtz)–H2O system to understand the coupling between silica transport and olivine alteration. Mineral pow...
Article
The reaction of Al and H2O is a promising method for the renewable production of H2 (an environmentally friendly fuel whose combustion produces only water), because it does not directly include fossil fuels conversion. This reaction was studied at extreme pH values as low as 1 and as high as 13.5 with HCl, H2SO4, and NaOH, and at low hydrothermal t...
Article
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Aquatic ecosystems continuously receive potentially hazardous heavy metals from natural and anthropogenic sources. Focusing on the origin of heavy metals, this study aims to estimate the load contribution of tributaries from individual watershed and human drainage and to dissect the source of heavy metals, as commonly required for environmental imp...
Article
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Metaharzburgite and metadunite in the ultramafic body of the Naran Massif in the Khantaishir Ophiolite, western Mongolia, record multi-stage processes of serpentinization (antigorite, lizardite + brucite, then chrysotile). Bulk-rock chemistry and the compositions of primary olivine (P-olivine) and Cr-spinel suggest that the alteration occurred in t...
Article
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This geological study utilized electron probe microanalysis of granitic rocks to evaluate traces of hydrothermal fluid activity. Amphibole-plagioclase thermometry was applied to estimate the temperature of a glassy vein as approximately 700°C. The results of mesoscopic and microscopic observations of the rock core obtained through borehole investig...
Article
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Hydrothermal activity in the crust results in the precipitation of large volumes of silica and often involves the formation of ore deposits, the shaping of geothermal systems, and recurring earthquakes. Pore fluid pressures fluctuate between lithostatic and hydrostatic, depending on seismic activity, and some models suggest the possibility of flash...
Article
The feasibility of using hot spring water for hydrogen production via hydrothermal reaction with aluminum was evaluated by performing experiments at Zao and Tamagawa hot springs in Northeast Japan. The results of the study demonstrate the viability of the proposed method for advanced direct geothermal energy use. The amount of hydrogen produced usi...
Article
The present study explores the fluid flows within the fractured reservoir of the Yufutsu field (Hokkaido, Japan) by using the innovative discrete fracture network models (DFN-HA model), where the critically-stressed fractures are characterized by their heterogeneous aperture distributions depending on their length and shear displacement. Simulation...
Article
Gypsum aggregate specimens have been used in the present study, because brittle, semi-brittle and ductile stress-strain behaviors of the specimen can be controlled only with confining stress level at the room temperature. At confining stresses up to 40 MPa, tri-axial compression and fluid flow experiments have been conducted on the intact specimens...
Article
In the Tamagawa geothermal area of Akita Prefecture, northern Japan, Obuki spring discharges a large amount of thermal water (∼9000 L/min), which is chloride-rich and acidic (pH 1.2). We have investigated changes in the physico-chemical nature and fractionation mechanisms of rare earth elements (REEs) including Y and actinides (Th and U) in the Shi...
Article
Brine-induced microtexture formation in upper amphibolite to granulite facies lower crust is investigated using a garnet-hornblende (Grt-Hbl) selvage developed along a planar crack discordantly cutting the gneissic structure of an orthopyroxene-bearing gneiss (central Sør Rondane Mountains, East Antarctica). The Cl contents of hornblende and biotit...
Article
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Superhot geothermal environments (above ca. 400 °C) represent a new geothermal energy frontier. However, the networks of permeable fractures capable of storing and transmitting fluids are likely to be absent in the continental granitic crust. Here we report the first-ever experimental results for well stimulation involving the application of low-vi...
Article
Unmanned aerial vehicles (UAVs) or drones have revolutionized scientific research in multiple fields. Drones provide us multiple advantages over conventional geological mapping or high-altitude remote sensing methods, in which they allow us to acquire data more rapidly of inaccessible or risky outcrops, and can connect the spatial scale gap in mapp...
Article
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Water–rock interaction in surface and subsurface environments occurs in complex multicomponent systems and involves several reactions, including element transfer. Such kinetic information is obtained by fitting a forward model into the temporal evolution of solution chemistry or the spatial pattern recorded in the rock samples, although geochemical...
Article
Bromine and iodine are halogens with similar chemical properties. Distributions of Br and I in the soil profile provide insights for understanding of their biogeochemical cycles and fate of these elements derived from artificial origin. Although generally not abundant in parent rock materials, they are often found in higher concentrations in soils,...
Article
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The hydrothermal reaction of water and aluminum materials was investigated as a method for hydrogen production using geothermal heat or wasted heat from industrial activities. Hydrogen was produced using pure aluminum powder at the observed temperature range of 230–340 °C and under corresponding saturated vapor pressure, and hydrogen production inc...
Article
Limestone possesses high performance as a chemical reagent for neutralizing acidic hot spring water. However, the emission of carbon dioxide and formation of large amounts of precipitates such as Ca(OH)2 are big issues during this process. To address this issue, we investigated the utility of crushed gravels of mafic and tuffaceous rocks as a neutr...
Article
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Serpentinization of oceanic lithosphere commonly proceeds with the development of mesh texture. Examination of a serpentinized harzburgite and a plagioclase-bearing wehrlite revealed conspicuous zoning of Al in a serpentine mesh texture, with Al-rich cores and Al-poor rims, as well as Al-rich veins, indicating local transport of Al from plagioclase...
Article
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This work assessed both the fractionation and the seasonal mobility variations of Ga and In in systems impacted by acidic thermal waters. This was accomplished by performing thermodynamic calculations using the PHREEQC algorithm and by assessing the activity of acidophilic iron-oxidizing bacteria. The pH of the Kusatsu thermal waters in Gunma Prefe...
Conference Paper
Full-text available
Silica activity influences the reaction pathways that may occur during serpentinization. At the crust–mantle boundary, silica activity and mass transfer are expected to increase. In this study, hydrothermal ‘tube-in-tube’ experiments utilizing the olivine–plagioclase–H2O system were conducted to assess silica-related mechanisms of hydrothermal alte...
Conference Paper
Full-text available
Water-rock interaction provides significant influences on evolution of hydrological properties within the crusts. Especially, dissolution and precipitation of silica in fractures play essential roles on permeability evolution. In this study, we conducted hydrothermal-flow through experiments on silica precipitation within porous media (alumina inne...
Article
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Molecular dynamics (MD) simulations were performed to investigate the self-diffusion coefficient and density profile of water confined between quartz (1010) surfaces at 298-573 K. The self-diffusion coefficient of confined water was lower than that of bulk water. In the thickness less than 1 nm, the self-diffusion coefficient was significantly lowe...
Article
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Geological and geophysical characteristics of supercritical geothermal reservoirs in the Tohoku District, NE Japan were investigated in order to evaluate potential of future geothermal energy. Geological information in the Tohoku District (caldera, hot spring hydrothermal alteration, mine, and granitoid) and geophysical data (gravity, MT and seismi...
Conference Paper
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Spectroscopic characteristics of critical phenomena of multicomponent geofluids and seawater were observed by using autoclave with transparent windows (visible-type autoclave). First, pure H2O fluids were observed by spectroscopic measurements at 500–800nm under high temperature and pressure conditions. The intensity of light transmitted decreased...
Article
Fractures are the location of various water–rock interactions within the Earth’s crust; however, the impact of the chemical heterogeneity of fractures on hydraulic properties is poorly understood. We conducted flow-through experiments on the dissolution of granite with a tensile fracture at 350°C and fluid pressure of 20 MPa with confining pressure...
Article
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Hydraulic fracturing experiments were conducted at 200–450°C by injecting water into cylindrical granite samples containing a borehole at an initial effective confining pressure of 40 MPa. Intensive fracturing was observed at all temperatures, but the fracturing characteristics varied with temperature, perhaps due to differences in the water viscos...