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Chemical and isotopic composition of fumarolic gases at Iwate volcano, Japan, during and after seismic activity in 1998: implications for the modification of ascending volcanic gases
Volcanoes volcanic earthquakes expectations and volcanic gases seismic activity the concentration of hydrochloric acid
2015/8/27
In 1998, there were many volcanic earthquakes recorded at Iwate volcano, Japan. Although an eruption was anticipated, it never occurred. Fumarolic gases were sampled at the volcano on six occasions du...
Long time-series of chemical and isotopic compositions of Vesuvius fumaroles: evidence for deep and shallow processes
Chemical and isotopic composition mount Vesuvius jet orifice
2015/8/27
Long time-series of chemical and isotopic compositions of Vesuvius fumaroles were acquired in the framework of the volcanic surveillance in the 1998-2010 period. These allow the identification of proc...
Springwater chemical anomalies prior to the Mw = 7.2 Van Earthquake (Turkey)
geochemical anomalies spring water earthquake precursors Van Turkey
2017/4/11
We performed chemical analyses of commercially bottled spring water (EREK Spring water) emanating from a location
less than 20 kilometer from the epicenter of the Mw = 7.2 Van Earthquake of October 2...
Chemical characteristics and δ34S–SO4 2– of acid rain: Anthropogenic sulfate deposition and its impacts on CO2 consumption in the rural karst area of southwest China
karst rainwater chemical composition carbonate weathering southwest China
2017/4/11
We analyzed rainwater collected from Huanjiang, China, between June, 2007 and May, 2008, with the aim of understanding
the origin of the acid rain and its potential impacts on CO2 uptake by carbonate...
Rare earth element geochemistry of waters and suspended particles in alkaline lakes using extraction and sequential chemical methods
rare earth elements alkaline lake dissolved suspended particles sequential chemical extractions
2017/4/11
The concentrations of rare earth elements in the waters and suspended particles from two alkaline lakes in a carbonate
drainage basin of the South China Karst region were determined via ICP-MS. Seque...
Rare earth element geochemistry of waters and suspended particles in alkaline lakes using extraction and sequential chemical methods
rare earth elements alkaline lake dissolved suspended particles sequential chemical extract
2017/4/11
The concentrations of rare earth elements in the waters and suspended particles from two alkaline lakes in a carbonate
drainage basin of the South China Karst region were determined via ICP-MS. Seque...
Sequential chemical extraction of arsenic and related elements from the Holocene sediments of Sonargaon, Bangladesh, in relation to formation of arsenic-contaminated groundwater
BCR method ferrihydrite goethite chlorite chemical weathering
2017/4/11
The mineralogy and chemistry of aquifer sediments of As-contaminated groundwater in Sonargaon, Bangladesh were
analyzed to identify the host phases of As and to understand release mechanism of As int...
Isotope and chemical compositions of thermal fluids at Tekman Geothermal Area (Eastern Turkey)
geothermal hydrogeochemistry isotope geothermometers Tekman
2017/4/11
The aim of this study was to understand geochemistry of thermal fluids circulating in the basin at the southwest of
Tekman (Erzurum, Turkey) Geothermal Province in Eastern Anatolia as well as to esti...
Chemical and isotopic characterization of the thermomineral water of Terme Sibarite springs (Northern Calabria, Italy)
thermomineral water water geochemistry geothermometry sulfur isotopes geothermal system
2017/4/11
The Terme Sibarite and nearby thermomineral water discharges have Ca–SO4 to Ca–SO4–HCO3 composition, near
neutral pH value of 6.9 to 7.6, outlet temperatures of 16° to 25.5°C, variable redox potentia...
Dissolution processes of elements from subducting sediments into fluids: Evidence from the chemical composition of the Sanbagawa pelitic schists
element mobility subduction zones pelitic schists
2017/4/12
In order to evaluate the dissolution processes of elements from subducting sediments into fluids during early stages of
metamorphism (up to oligoclase–biotite zone at about 30 km depth), the chemical...
Sources of pore water in a Tanegashima mud volcano inferred from chemical and stable isotopic studies
water chemistry mud volcano fluid migration clay mineral dehydration stable isotopic composition
2017/8/9
Pore waters at the depths of 0-590 cm below seafloor (bsf) were collected from four core samples at four different sites in a mud volcano off Tanegashima Island between Ryukyu trench and Ryukyu arc of...
A normalised seawater strontium isotope curve and the Neoproterozoic-Cambrian chemical weathering event
normalised seawater strontium isotope curve chemical weathering event
2009/10/22
The strontium isotope composition of seawater has varied over geological time in response to changes in the rates of continental weathering relative to ocean crust alteration. However, the potential o...
Mineral-Chemical Constraints on the Miocene Calc-alkaline and Shoshonitic Volcanic Rocks of Western Turkey: Disequilibrium Phenocryst Assemblages as Indicators of Magma Storage and Mixing Conditions
western Anatolia magma evolution magma mixing compositional zoning disequilibrium parameters crustal magma chambers
2009/7/7
Early to Middle Miocene (22 to 15 Ma) volcanic activity across western Turkey produced a series of lavas and pyroclastic deposits with calc-alkaline and shoshonitic affinities. The erupted magmas show...