Results 91 to 100 of about 9,636,025 (200)

(Table 3) 40Ar/39Ar step heating and total fusion results from single crystals of muscovite and K-feldspar from samples of ODP Holes 116-717A and 116-718C

, 1990
(Table 3) 40Ar/39Ar step heating and total fusion results from single crystals of muscovite and K-feldspar from samples of ODP Holes 116-717A and 116 ...
Harrison, T Mark, Heizler, Matthew T, Matthew T Heizler (7964780), Copeland, Peter, Peter Copeland (2843324), T Mark Harrison (7964777)   +5 more
core   +1 more source

(Appendix B) Analyses of plagioclase and K-feldspar of ODP Leg 121 basalts

, 1991
(Appendix B) Analyses of plagioclase and K-feldspar of ODP Leg 121 ...
Dominique A M Weis (6964547), Davies, Hugh L, Weis, Dominique A M, Frederick A Frey (6966767), Hugh L Davies (6967391), Frey, Frederick A, Jones, William B, William B Jones (6967388)   +7 more
core   +1 more source

Quantitative Assessment of Potassium from k-Feldspar ore by Roast-leaching Process [PDF]

, 2018
The quantitative leaching of potassium K-Feldspar roasted at elevated temperature was investigated. The effects of various parameters were considered such as leachant concentration, reaction temperature and particle sizes.
GIRIGISU, S. GIRIGISU, AYINLA, I. K., UZONDU, C. D., MOHAMMED, A. A., BABA, A. A., RAJI, M. A.   +5 more
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Subsolidus rubidium-dominant feldspar from the Morrua pegmatite, Mozambique: paragenesis and composition

, 1999
At the Morrua pegmatite, Mozambique, alkali feldspar has replaced pollucite under low-temperature (250-150 ~ hydrothermal conditions. Fluids invading a fracture system in pollucite formed round granular aggregates of (K-Rb)-feldspar in three stages: (1 ...
P. Cern, D. K. Teertstra, F. C. Hawthorne   +2 more
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Atomic structure and water arrangement on K-feldspar microcline (001)

Nanoscale
Investigating the water structure at the K-feldspar microcline (001) surface is a prerequisite for understanding fundamental surface processes.
Tobias Dickbreder, Franziska Sabath, Bernhard Reischl, Rasmus V. E. Nilsson, Adam S. Foster, Ralf Bechstein, Angelika Kühnle   +6 more
openaire   +5 more sources

Dissolution behavior of feldspar in oxalic acid at 40–100 °C: Implications for Al enrichment during chemical weathering

Solid Earth Sciences
The dissolution behavior of feldspar is fundamental to understand geological processes such as surface mass cycling, chemical weathering, mineral deposition and global climate change. In this study, we select oxalic acid – one of the most popular organic
Xin Huang, Feng Guo, Xing Ding, Liang Zhao, Feng Zhang, Yaqian Wen   +5 more
doaj   +1 more source

Automated mapping of K-feldspar by electron backscatter diffraction (EBSD) and application to 40Ar/39Ar dating

, 2008
The ability to quantify feldspar microstructure using the electron backscatter diffraction (EBSD) method has direct application in the study of rock deformation and strain kinematics.
Steven Reddy (7020578), S. McLaren (15399977)   +1 more
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Layer Formation on Feldspar Bed Particles during Indirect Gasification of Wood. 2. Na-Feldspar

, 2019
The choice of bed material for biomass gasification plays a crucial role for the overall efficiency of the process. Olivine is the material conventionally used for biomass gasification due to the observed activity of olivine toward cracking of unwanted ...
Seemann, Martin,, Hannl, Thomas Karl,, Vilches, Teresa Berdugo, Berdugo Vilches, Teresa, Knutsson, Pavleta,, Kuba, Matthias, Faust, Robin, Faust, Robin,, Öhman, Marcus,, Hannl, Thomas Karl, Öman, Marcus,, Seemann, Martin, Kuba, Matthias,, Ohman, Marcus, Knutsson, Pavleta, 6man, Marcus, Berdugo Vilches, Teresa,, Hannl, Thomas; orcid:, Berdugo Vilches, Teresa; orcid:, Faust, Robin; orcid:, Öhmann, Marcus, Hannl, Thomas Karl; orcid:, Kuba, Matthias; orcid:   +22 more
core   +1 more source

Review on K-Feldspar Mineral Processing for Extracting Metallic Potassium as a Fertilizer Resource

The K-feldspar mineral is an insoluble potassium resource with a high potassium content and the most extensive and abundant reserves. To address the insufficient supply of soluble potassium fertilizers in China, the application of appropriate processing ...
Lijun Ma, Yu Huang, Zhaolin Gu, Kehao Chen, Meijuan Chen, Lijuan Fu, Liyun Zhao   +6 more
core   +1 more source

SELECTIVE SEPARATION OF Na- AND K-FELDSPAR FROM WEATHERED GRANITES BY FLOTATION IN HF MEDIUM

, 2010
Granite and granodiorite deposits are widely scattered throughout in Eastern Black Sea region of Turkey. These granitic bodies also contain considerable amounts of quartz, Na-feldspar, K-feldspar mica and other color-imparting ferruginous impurities ...
Demir, Cengiz
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