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中国地质大学科学技术发展院陈思博(硕士研究生), 郭新转等GPMR国家重点实验室 GEOLOGY, JAN 2018, Dehydration of phengite inferred by electrical conductivity measurements: Implication for the high conductivity anomalies relevant to the subduction zones
多硅；白云母；脱水；对俯冲带；高导；异常
2021/10/21
2018年1月，《GEOLOGY》刊发了中国地质大学地质过程与矿产资源国家重点实验室郭新转副教授研究团队的研究论文：多硅白云母的脱水及其对俯冲带高导异常的启示（Dehydration of phengite inferred by electrical conductivitymeasurements: Implication for the high conductivity anomalies...
High-precision gravity measurements using absolute and relative gravimeters at Mount Etna (Sicily, Italy)
absolute and relative gravimeters uncertainty microgravimetry
2015/8/27
Accurate detection of time gravity changes attributable to the dynamics of volcanoes requires high-precision gravity measurements. With the aim of improving the quality of data from the Mount Etna gra...
High-precision measurements of water isotopes using laser absorption spectroscopy
oxygen isotopes hydrogen isotopes water laser absorption spectroscopy Off-Axis Integrated Cavity
2017/4/11
Hydrogen and oxygen isotopic analysis using an off-axis integrated-cavity output spectroscopy (OA-ICOS) was carefully
checked for long-term stabilities, dependence on the injected water volume, inter...
The matrix effect on 238U and 232Th measurements using pressed powder pellets by LA-ICP-MS
LA-ICP-MS matrix effect U and Th
2017/4/12
Radioisotope concentrations, such as 238U and 232Th, of bulk sediments are good environmental indicators and useful
for radiometric age determinations. Pressed pellets of sediment can be analyzed by ...
Determination of Henry’s law constant of halocarbons in seawater and analysis of sea-to-air flux of iodoethane (C2H5I) in the Indian and Southern oceans based on partial pressure measurements
solubility equilibrator volatile organic compounds
2017/4/12
The sea-to-air flux of C2H5I (iodoethane) in the Indian Ocean and the Southern Ocean was estimated from the Henry’s
law constant (KH) and the measured partial pressures of C2H5I in surface seawater a...
Simplified technique for the measurements of Re-Os isotope by multicollector inductively coupled plasma mass spectrometry (MC-ICP-MS)
Re-Os, MC-ICP-MS, isotope measurements
2017/8/9
A method for the rapid determination of Re-Os isotopes by multi-collector inductively coupled plasma mass spectrometry (MC-ICP-MS) was developed. For Os measurements, samples were introduced into the ...
IP measurements on tunnel walls of a sericite deposit—A contact method of nonpolarizable electrodes on a base rock and detection of clay minerals by normalized chargeability
IP (induced polarization) nonpolarizable electrode tunnel wall resistivity
2009/3/5
The development of the IP (induced polarization) measurement technique used inside a tunnel is required in order to estimate the subsurface resistivity and chargeability structures with high precision...
High sensitivity measurements of nitrogen isotopic ratios in coral skeletons from Palau, western Pacific: Temporal resolution and seasonal variation of nitrogen sources
coral skeleton δ15N value δ18O value δ13C value seasonal variation
2017/8/10
By using a step-wise heating method in conjunction with static vacuum mass spectrometry, we have measured at high temporal resolution (one month) the nitrogen isotopic ratio of a coral skeletal sample...
Determination of 9Be in geological standard samples, JA-2 and JB-2, and of 9Be and 10Be in a basaltic rock sample for evaluation of uncertainty involved in 10Be/9Be ratio measurements
10Be 9Be ICP-MS AMS uncertainty
2017/8/10
We determined the concentrations of 9Be in JB-2 and JA-2 geological standard samples using an inductively coupled plasma mass spectrometer (ICP-MS). We determined 9Be abundance in standard samples of ...
Methylene Blue Dimerization does not Interfere in Surface-Area Measurements of Kaolinite and Soils
Dye Adsorption Ethylene Glycol Adsorption Kaolinite Surface Methylene Blue Dimerization Specific Surface Area
2011/12/5
Abstract: Methylene blue (MB) was adsorbed from aqueous solutions onto a kaolinite and four soil samples to determine the effects of MB dimerization on the measured surface area. Adsorption isotherms ...
Mineralogical Interference on Kaolinite Crystallinity Index Measurements
Kaolinite Crystallinity Index Mineralogical Interferences
2011/12/2
Abstract: This study examines the influence of minerals and amorphous phases associated with kaolin and kaolinitic rocks on kaolinite crystallinity indices (KCI) derived from X-ray diffraction (XRD) d...
Equation of state of MgSiO3 with the perovskite structure based on experimental measurements
MgSiO3 experimental measurement perovskite structure
2012/3/30
WestudiedMgSiO withtheperovskitestructureheatedtotemperaturesupto1500K3
atpressuresbetween36and110GPawithin-situX-raydiffraction.Thenewpressure-
volume-temperature(P-V-T)datawerecombinedwithliteratu...
Volume measurements of zoisite at simultaneously elevated pressure and temperature
Volume measurements zoisite pressure temperature
2012/4/1
Unit-cell parameters of zoisite, Ca2Al3Si3O12(OH), have been measured at simultaneously high pressures and temperatures (up to 6.1 GPa and 8008 C) in a Walker-style multi-anvil apparatus at the synchr...
Gibbs energies of formation for hydrocerussite [Pb(OH)2·(PbCO3)2(s)] and hydrozincite {[Zn(OH)2]3·(ZnCO3)2(s)} at 298 K and 1 bar from electrochemical cell measurements
Gibbs energies hydrocerussite [Pb(OH)2·(PbCO3)2(s)] hydrozincite {[Zn(OH)2]3·(ZnCO3)2(s)} electrochemical cell measurements
2012/3/31
New values are reported for the Gibbs energies of formation from the elements for hydrocerussite Pb(OH)2·(PbCO3)2 and hydrozincite [Zn(OH)2]3·(ZnCO3)2. These D values 0 G f were obtained from electroc...
Viscoelastic relaxation measurements in the system SiO2-NaAlSiO4 by photon correlation spectroscopy
Viscoelastic relaxation measurements system SiO2-NaAlSiO4 photon correlation spectroscopy
2012/4/6
Relaxationtimesoflongitudinalstrainfor?vesupercooledliquidsalongthejoinSiO2(qz)-NaAlSiO (ne)includingthecompositionsofalbite(ab),ab jd ,jadeite(jd),jd ne ,4 50 50 66 33andjdne weremeasuredbyphotoncorr...