搜索结果: 1-9 共查到“地质学 Sequential”相关记录9条 . 查询时间(0.141 秒)
Speciation of 38 elements in eight GSJ geochemical sedimentary reference materials determined using a sequential extraction technique
CR protocol geochemical reference material sequential extraction speciation
<
2017/4/11
A sequential extraction procedure developed by the European Community Bureau of Reference (BCR) was applied to
eight sediment geochemical reference materials provided by the Geological Survey of Japa...
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...
Investigation of cesium adsorption on soil and sediment samples from Fukushima Prefecture by sequential extraction and EXAFS technique
cesium adsorption clay minerals sequential extraction extended X-ray absorption fine structure (EXAFS) Fukushima
<
2017/4/11
Previous studies have shown that radiocesium (mainly 137Cs) was retained at the very surface of soils in Fukushima
Prefecture. Clay minerals and micas are assumed as the main sorbents for cesium (Cs)...
New preconcentration technique of Zr, Nb, Mo, Hf, Ta and W employing coprecipitation with Ti compounds: Its application to Lu-Hf system and sequential Pb-Sr-Nd-Sm separation
coprecipitation Ti compounds Lu-Hf Pb-Sr-Nd isotope analysis preconcentration
<
2017/8/10
A new preconcentration technique of Zr, Nb, Mo, Hf, Ta and W has been invented employing coprecipiation with Ti compounds. Silicate samples were digested by HF with addition of Ti. Subsequent drying w...
New sequential separation procedure for Sr, Nd and Pb isotope ratio measurement in geological material using MC-ICP-MS and TIMS
Sr Nd isotope ratio MC-ICP-MS TIMS
<
2017/8/10
A new 3-step sequential separation chemistry for Sr, Nd and Pb from silicate samples, which is suitable for isotope analysis by MC-ICP-MS as well as TIMS, has been developed. The chemistry is designed...
Sequential kinetics of a muscovite-out reaction: A natural example
Sequential kinetics a muscovite-out reaction:A natural example
<
2012/3/31
A natural example of sequential kinetics for the muscovite dehydration reaction in highly de-
formed mylonitic gneisses is analyzed. Studied textures consist of deformed pegmatitic muscovite
crystal...
Sequential Active Alteration of Rhyolitic Volcanic Rock to Endellite and a Precursor Phase of It at a Spring in Michoacan, Mexico
Sequential Active Alteration Rhyolitic Volcanic Endellite Precursor Phase
<
2012/2/20
Sequential alteration of volcanic rock of rhyolitic composition to a precursor of endellite, and thence to tubular endellite, may be observed at a hot spring about 27 km north of Ciudad Hidalgo, Micho...