Results 71 to 80 of about 35,562 (308)

Cathodoluminescence response from sanidine feldspar [PDF]

open access: yes, 2013
In the present study, cathodoluminescence (CL) providing information about surface rather than bulk material reveals blue and red emissions within the sanidine feldspar from the Eifel Mountains, Germany.
Karabulut Y., Canmoǧlu A., Can N.
core   +2 more sources

Cunningham feldspar—Beaver claim

open access: yes, 1943
Cunningham feldspar—Beaver ...
A. F Hagner (10070257)
core   +1 more source

New Schmidt hammer exposure‐age dating calibrations for the Last Glacial Termination in NW Scotland: Development and application to undated Torridon Group sandstone surfaces in Wester Ross

open access: yesJournal of Quaternary Science, EarlyView.
ABSTRACT An understanding of the terrestrial extent, retreat dynamics and climate–glacier coupling of ice masses during the Last Glacial Termination (LGT, ~18–11 ka) is often limited by a fragmentary geomorphological record and is dependent on precise, accurate and robust dating frameworks.
Alastair M. Curry   +3 more
wiley   +1 more source

Layer Formation on Feldspar Bed Particles during Indirect Gasification of Wood. 2. Na-Feldspar

open access: yes, 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,   +22 more
core   +1 more source

Ngarrawa (mound spring) sediments as archives of Holocene environmental change in arid central Australia: Insights from Itrax XRF scanning

open access: yesJournal of Quaternary Science, EarlyView.
ABSTRACT Central Australia's ngarrawa, or ‘mound springs’, are unique hydrological systems that serve as some of the only near‐permanent sources of water and continuous sediment deposition in Australia's arid interior. As such, they hold significant potential as palaeo‐climate and ‐environmental archives in a region where many aspects of past climate ...
Fletcher C. Nixon   +3 more
wiley   +1 more source

Petrography and Provenance Study of South-Central Part of Kaladgi Basin, Belgaum, Karnataka, India

open access: yesInternational Journal of Economic and Environment Geology, 2020
The area under investigation covers the south-central part of Kaladgi series comprising of sedimentary rocks, mainly quartzarenites. From the geological point of view the study area comprises southcentral part of Kaladgi basin covering ...
Anant G. Pujar, A. Sreenivasa, Ajaykumar N. Asode
doaj   +1 more source

Internal U, Th and Rb concentrations of alkali-feldspar grains: Implications for luminescence dating [PDF]

open access: yes, 2016
This study assesses whether internal U, Th and Rb concentrations of single grains of alkali-feldspar can impact upon luminescence dating. Internal alpha dose-rates determined for two sedimentary samples calculated from mean U and Th concentrations ...

core   +1 more source

Carbon isotope geochemistry of organic matter in volcanic paleosols constrains paleo‐environmental variations

open access: yesJournal of Quaternary Science, EarlyView.
ABSTRACT The Fiorano quarry paleosol developed within the Colli Albani volcanic district (Italy) in the time interval bracketed by the deposition of the Pozzolanelle pyroclastic‐flow unit (365 ± 4 ka) and the emplacement of the Capo di Bove lava flow (277 ± 2 ka).
Eduardo Di Marcantonio   +4 more
wiley   +1 more source

Effect of Soil and Foliar Feeding with some Sources of Potassium on Growth, Yield and Quality of Garlic [PDF]

open access: yesJournal of Plant Production
This study was conducted during two winter successive seasons (2022/2023 and 2023/2024) at El-Gemmeiza experimental farm, Agric. Res., Station (ARC), Gharbya Governorate, Egypt, to study the effect of different potassium sources as soil mineral (MK) or ...
F. Mansour   +2 more
doaj   +1 more source

Selective separation of sodium and potassium feldspar minerals from orebodies [PDF]

open access: yes, 2004
Feldspar minerals are major commodities used in the production of glass and ceramics. A major proportion of feldspar rocks such as granites, pegmatites and nepheline syenites embody both Na-feldspar (Albite) and K-feldspar (microcline or orthoclase) in ...
Celik, MS   +8 more
core   +1 more source

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