Results 91 to 100 of about 32,961 (360)
Investigation of the surface properties of gangue minerals in PGM bearing ores
, 2005 Bibliography: leaves 90-95.The recovery of Platinum Group Minerals (PGM) and associated sulphides by froth flotation from the Bushveld Igneous Complex is complicated by the presence of naturally floatable gangue minerals such as talc.
Martinovic, Jasmina
core
Ar diffusion in K-feldspar: present and absent
, 2013 The mechanisms of Ar release from K-feldspar samples in laboratory experiments and during their geological history are assessed here. Modern petrology clearly established that the chemical and isotopic record of minerals is normally dominated by aqueous ...
Villa, Igor Maria
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Acta Geologica Sinica - English Edition, EarlyView.High‐grade orebodies are controlled by stress field with σ1 oriented NE‐SW during the main mineralization stage.Inferred NEE‐trending strike‐slip fault control another orebody distribution. ABSTRACT The Jinqingding gold deposit in eastern Jiaodong is a significant gold mineralization within the Muping–Rushan metallogenic belt.
Xiaohu Wang +10 more
wiley +1 more source
CerâmicaResumo Amostras de feldspatos foram submetidas a ensaios tecnológicos de calcinação, possibilitando avaliar as modificações nas propriedades físicas e químicas desses minerais, identificando eventuais problemas tecnológicos e compreendendo as mudanças ...
G. M. Aarão, R. Scholz
doaj +1 more source
Observations on the Feldspars [PDF]
The Journal of Geology, 1913 An interesting variation of the albite-microcline intergrowth known as perthite was noticed among some specimens obtained from a mineral dealer. The body of the specimen is pale flesh-red microcline. On the basal pinacoidal oio cleavage there are two intersecting sets of narrow, colorless albite strips, which are plates inserted parallel to the unit ...
openaire +1 more source
, 2015 We investigated the infrared stimulated luminescence (IRSL) and post-infrared IRSL (pIRIR) signals emitted by K-feldspars from sedimentary samples from Asia, Europe and Africa using a single-aliquot multiple elevated temperature (MET) stimulation ...
Yujie Guo (20125455) +4 more
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Acta Geologica Sinica - English Edition, EarlyView.The key factors making the monzogranitic porphyry fertile for mineralization, including its high Cl, S, and H2O contents, high oxidation state, significant fluid exsolution, and multiple recharges of deep‐seated mafic magma, were all critical for the formation of the Wunugetushan porphyry Cu‐Mo deposit. ABSTRACT The Wunugetushan (Wushan) porphyry Cu–Mo
Genyuan JI +4 more
wiley +1 more source
Spectral study on feldspar thermoluminescence process
, 2008 Feldspar thermoluminescence fading phenomena were investigated here by using newly-constructed thermoluminescence spectrometer on the basis of charge-coupled detector, and thereafter the discussion and explanation on feldspar TL fading mechanism were ...
Huang, B. L. +10 more
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Plagioclase-alkali feldspar geothermometry revisited
, 1977 SUMMARY, The plagioclase-alkali-feldspar geothermometer formulated by Stormer 0975) does not take into account the effect of small amounts of calcium in the alkali feldspar.
Marjorie Powell, Roger Powell
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Archaeometry, EarlyView.Abstract Soils that contain swelling clay minerals (e.g., montmorillonite) expand and contract during wetting and drying, causing movement within the soil profile. This process, known as argilliturbation, can alter artefact distributions, destroy stratigraphy and complicate the interpretation of archaeological deposits.
Caroline Mather +11 more
wiley +1 more source