搜索结果: 1-15 共查到“地质学 Calcium”相关记录21条 . 查询时间(0.117 秒)
Origin of unusual fractionation of Pb isotope ratios with calcium in thalliumspiked multiple collector-inductively coupled plasma mass spectrometry
Pb isotope, fractionation, MC-ICPMS
2017/4/10
We report the origin of significant fractionation of Pb isotope ratios in Ca-doped 0.08 mol L–1 HNO3 solutions. We
applied Tl-spiked standard bracketing mass fractionation correction using solution-b...
Calcium-sulfate rich water in landslide area of Tateyama Caldera, northern central Japan
water geochemistry Tateyama caldera Ca–SO4 type water landslide sulfur isotopes
2017/4/11
Chemistry of surface waters from the Tateyama caldera known as a site of frequent landslides in northern central Japan
was investigated to obtain the relationship between their geochemical characteri...
The European calcium carbonate association
mineral calcium carbonate European calcium carbonate association
2012/3/6
The European calcium carbonate and dolomite producers established their own representation at EU level through CCA-Europe, a founding member of the Industrial Minerals Association Europe (IMA-Europe).
Study on Desulfurization of SO2 by Desulfurization Agent of Attapulgite Compounded with Calcium Oxide
Adsorption Attapulgite Cao Catalysis Desulfurisation SO2
2011/11/15
Sulfur dioxide is one of the major pollutants resulting from fuel combustion. In this study, CaO and attapulgite were utilized as raw material for synthesizing CaO/attapulgite(CaO/ATP) desulfurizer. T...
Experimental study on the fractionation of yttrium from holmium during the coprecipitation with calcium carbonates in seawater solutions
calcium carbonates seawater Y/Ho ratios covalency
2017/8/10
The partitioning of Y and Ho between CaCO3 (calcite and aragonite respectively) and seawater was experimentally investigated at 25°C and 1 atm. Both Y and Ho were observed to be strongly partitioned i...
期刊信息
篇名
Dissolution Kintics of Calcium Carbonate Minerals in H2O-CO2 Solutions in Turbulent Flow:the role of the diffusion boundry layer and the solw reaction H2O+CO2←→H（+）HCO3
语种
英文
撰写或编译
作者
刘再华，W,Dr...
Characterization method of Limestone according to the Formation Age on manufacturing process of aragonite precipitated calcium carbonate
Characterization method Limestone the Formation Age manufacturing process aragonite calcium carbonate
2012/3/28
Korea has about 68 hundreds million tons of limestone's reserves. Still, high-Ca2+ limestone containing more than 52% calcium oxide makes up for about 12% only; hence the need for securing and effecti...
Manufacturing Characteristics of Precipitated Calcium Carbonate according to the Formation Age of Limestone
Manufacturing Characteristics Precipitated Calcium Carbonate Formation Age Limestone
2012/3/28
Limestone is abundant mineral that has occupied about 14% of the earth's crust and 20~30% of the sedimentary rock all over the world. As extensive distribution, limestone contains various minerals suc...
Tensile strength of sand, palygorskite and calcium carbonate mixtures and interpretation with the effective stress theory
Indirect tensile strength Palygorskite Calcium carbonate Effective stress Compaction Central Iran
2011/11/4
Many soils in arid regions of the world including those of central Iran contain palygorskite and carbonates in their mineral fraction. There is, however, little information on the effects of these min...
Properties of Water in Calcium- and Hexadecyltrimethylammonium-Exchanged Bentonite
Bentonite Diffusion HDTMA Neutron Scattering Water
2011/12/2
Abstract: Dynamical and thermodynamic properties of water at room temperature in Ca- and hexadecyltrimethylammonium- (HDTMA) exchanged bentonite were determined for 4 different water contents (∼...
Primary structure of a soluble matrix protein of scallop shell: Implications for calcium carbonate biomineralization
Primary structure matrix protein scallop shell Implications calcium carbonate biomineralization
2012/4/1
Soluble proteins in the scallop ( Patinopecten yessoensis ) foliated calcite shell layer were characterized using biochemical and molecular biological techniques. SDS PAGE of these molecules revealed ...
TEM investigation of potassium-calcium feldspar inclusions in B鴊gild plagioclase
TEM investigation potassium-calcium feldspar inclusions B鴊gild plagioclase
2012/4/6
PotassiumcalciumfeldsparinclusionsinaBggildplagioclasewereinvestigatedbyanalyticalhighresolutiontransmissionelectronmicroscHRTEM),andtheformationprocessoftheseinclusionsisconsideredbasedontheAlSiorder...
Transformation of fivefold-coordinated silicon to octahedral silicon in calcium silicate, CaSi2O5
Transformation fivefold-coordinated silicon octahedral silicon calcium silicate CaSi2O5
2012/4/5
Asingle-crystalhigh-pressurediffractionstudyinadiamond-anvilcellshowsthatunderhydrostaticconditionstriclinicCaSiOtransformstoamonoclinicstructureatapressurebetween0.17(2)and0.205(5GPa.Thetransitioniso...
Thermochemistry of natural potassium sodium calcium leonhardite and its cation-exchanged forms
Thermochemistry potassium sodium calcium leonhardite cation-exchanged forms
2012/4/6
Leonhardite, a partially dehydrated laumontite, and its alkali variety, primary leonhar-dite, have been studied byhigh-temperature calorimetry. The enthalpies offormation from oxides and elements at 2...
Thermochemistry and phase equilibria in calcium zeolites
Thermochemistry phase equilibria calcium zeolites
2012/4/6
Thermodynamic properties ofthe natural calcium zeolites laumontite, leonhardite, de-hydrated leonhardite (metaleonhardite), wairakite, and yugawaralite werestudied bycal-orimetry in lead borate solven...