Results 21 to 30 of about 104,588 (306)

Study on Process Mineralogy of a Tungsten Ore in Yunnan Province

Kuangchan zonghe liyong, 2022
By applying chemical phase analysis, mineral liberation analyzer (MLA), SEM, optical microscope and energy spectrum analysis, the mineral composition, grain size and occurrence states of valuable minerals are studied in this article, also the ...
Xingwang Zhang, Zhiyong Sun
doaj   +1 more source

SPITZER survey of dust grain processing in stable discs around binary post-AGB stars [PDF]

, 2008
Aims: We investigate the mineralogy and dust processing in the circumbinary discs of binary post-AGB stars using high-resolution TIMMI2 and SPITZER infrared spectra.
Acke, Aden, Bohren, Bouwman, Bouwman, Bradley, Bujarrabal, Bujarrabal, Bujarrabal, C. Gielen, Chesneau, Cohen, De Ruyter, Deroo, Deroo, Dorschner, Draine, Dullemond, Fabian, Gielen, Giridhar, Giridhar, Giridhar, Gledhill, Gonzalez, Gonzalez, Grynko, H. Van Winckel, Henning, Honda, Hony, Houck, Hrivnak, Jaeger, Kemper, Kessler-Silacci, Kurucz, Kwok, L. B. F. M. Waters, Lisse, Lloyd Evans, M. Min, Maas, Maas, Maas, Mastrodemos, Meixner, Menzies, Min, Min, Min, Min, Molster, Molster, Molster, Molster, Oudmaijer, Peeters, Raveendran, Reyniers, Roddier, Savage, Schertl, Schütz, Servoin, Shkuratov, Sofia, Steenman, Steenman, Szczerba, T. Lloyd Evans, Tielens, Toon, van Boekel, van Boekel, Van Kerckhoven, Van Winckel, Van Winckel, Van Winckel, Van Winckel, Van Winckel, Verhoelst, Waelkens, Waters, Waters, Waters, Werner   +86 more
core   +3 more sources

Study on Process Mineralogy of Ilmenite in Yunnan Province

Kuangchan zonghe liyong, 2022
The process mineralogy of an ilmenite in Yunnan Province was studied. The results showed that the grade of titanium in the ore sample was 5.62%. The main metal minerals in the ore were ilmenite and vanadium ilmenite, which occupied for 61.39% and 11.03 ...
Xianzhi Lu, Peiyao Lu, Yingjie Chen, Zhan Ding, Pan Yu, Shaojun Bai   +5 more
doaj   +1 more source

Zircon ages in granulite facies rocks: decoupling from geochemistry above 850 °C? [PDF]

, 2018
Granulite facies rocks frequently show a large spread in their zircon ages, the interpretation of which raises questions: Has the isotopic system been disturbed? By what process(es) and conditions did the alteration occur?
A Boriani, A Boriani, A Henk, A Langone, A Mulch, A Mulch, A Möller, A Zanetti, A Zingg, A Zingg, A-M Seydoux-Guillaume, AE Hofmann, B Bingen, B Schnetger, Barbara E. Kunz, BE Kunz, BE Kunz, C Annen, C Paton, C Paton, C Redler, C Redler, C Yakymchuk, CR McFarlane, CR McFarlane, D Regis, D Rubatto, D Rubatto, D Rubatto, D Rubatto, D Rubatto, Daniele Regis, DE Kelsey, DE Kelsey, DJ Cherniak, DJ Cherniak, DM Fountain, DM Fountain, E Rutter, EB Watson, EB Watson, EM Peterman, F Corfu, F Tomaschek, FJ Korhonen, G Bigi, G Fraser, G Peressini, G Rivalenti, G Rivalenti, G Vavra, G Vavra, GL Luvizotto, H Berckhemer, H Degeling, H Voshage, IS Williams, IS Williams, J Hermann, J Pape, J Sláma, JA Baldwin, JA Petrus, JE Quick, JE Quick, JF Diener, JW Valley, K Mezger, KR Mehnert, L Nasdala, L Nasdala, L Schiøtte, M Bertolani, M Bertolani, M Guillong, M Kohn, M Tichomirowa, MA Kusiak, MA Kusiak, Martin Engi, MJ Whitehouse, MP Roberts, MR Handy, MR Handy, NE Timms, NE Timms, NJ Pearce, NM Kelly, P Monjoie, P Vonlanthen, PW Hoskin, PW Hoskin, PW Hoskin, R Schuster, RC Ewing, RJ Taylor, RM Flowers, RT Pidgeon, S Barboza, S Barboza, S Bodorkos, S Capedri, S Piazolo, S Sinigoi, S Sinigoi, S Sinigoi, SE Jackson, SH Vorhies, SL Harley, SM Reddy, SM Schmid, SM Schmid, T Geisler, T Geisler, TA Ewing, U Schaltegger, U Schaltegger, U Schaltegger, U Schaltegger, US Klötzli, WF McDonough   +120 more
core   +1 more source

Morphometric parameters of sulphide ores as a basis for selective ore dressing

Записки Горного института, 2022
To assess the possibility of selective disintegration and reduction of overgrinding of hard-to-reproduce ores, optical microscopic and X-ray microtomographic studies were carried out and quantitative characteristics of morphological parameters of ...
Asiya M. Duryagina, Irina V. Talovina, Holger Lieberwirth, Regina K. Ilalova   +3 more
doaj   +1 more source

Routine characterization and interpretation of complex alkali feldspar intergrowths [PDF]

, 2015
Almost all alkali feldspar crystals contain a rich inventory of exsolution, twin, and domain microtextures that form subsequent to crystal growth and provide a record of the thermal history of the crystal and often of its involvement in replacement ...
Fitz Gerald, John D., Lee, Martin R., Parsons, Ian   +2 more
core   +1 more source

Process Mineralogy of Mud Fraction in Deep Sea Rare Earth

Kuangchan zonghe liyong, 2023
This is an essay in the field of process mineralogy. Deep sea rare earths are the fourth deep-sea mineral resource after polymetallic nodules, cobalt rich crusts and polymetallic sulphides.
Xiaoyu Li, Wenliang Xiong, Lei Lu, Miao Yu, Fenlian Wang, Da Chen   +5 more
doaj   +1 more source

Coralline algae in a naturally acidified ecosystem persist by maintaining control of skeletal mineralogy and size [PDF]

, 2016
To understand the effects of ocean acidification (OA) on marine calcifiers, the trade-offs among different sublethal responses within individual species and the emergent effects of these trade-offs must be determined in an ecosystem setting.
Gambi, M.C., Kamenos, N.A., Kroeker, K.J., Micheli, F., Perna, G.   +4 more
core   +1 more source

Mineralogical Factors Affecting Beneficiation-Metallurgy of a Gold Deposit in Africa

Kuangchan zonghe liyong, 2023
This is an essay in the field of process mineralogy. Systematic process mineralogy has been done in this study, focusing on a gold deposit in Africa, using automatic mineral analysis system (i.e. AMICS, MLA) combined with optical microscopy.
Lei Li, Jun Peng, Yiwu Xiao, Mingjun Tian, Hui Wang   +4 more
doaj   +1 more source

Mineral chemistry of late Variscan gabbros from central Spain: constraints on crystallisation processes and nature of the parental magmas [PDF]

, 2015
© 2016. Universidad Complutense de Madrid. The commercial rights of the printed and online versions of Journal of Iberian Geology are property of the Universidad Complutense de Madrid (UCM) and the Consejo Superior de Investigaciones CientÍficas (CSIC),
Jeffries, T, Losantos, E, Orejana, D, Villaseca, C   +3 more
core   +3 more sources