Results 81 to 90 of about 9,636,025 (200)
, 2013 The thermal stability of the infrared stimulated luminescence (IRSL) signal from a sedimentary K-feldspar was investigated using isothermal decay study.
Sheng-Hua Li (2268709), Bo Li (19583689)
core
The leaching kinetics of K-feldspar in sulfuric acid with the aid of ultrasound
Ultrasonics Sonochemistry, 2017 The leaching kinetics of K-feldspar in H2SO4-CaF2 system with the assistant of ultrasound was investigated. The effects of various factors, such as sulfuric acid concentration, liquid-to-solid ratio, CaF2 dosage and leaching temperature were comprehensively studied.
Jiayu, Ma +5 more
openaire +2 more sources
, 1990 (Table 5) Summary of 40Ar/39Ar ages from of muscovite and K-feldspar from samples of ODP Holes 116-717A and 116 ...
Harrison, T Mark +5 more
core +1 more source
Luminescence dating of Chinese loess beyond 130 ka using the non-fading signal from K-feldspar
, 2012 A multi-elevated-temperature post-IR IRSL (MET-pIRIR) protocol, which utilizes the IRSL signals measured by progressively increasing the stimulation temperature from 50 to 300 ℃ in a step of 50 ℃, was applied to date the potassium-rich feldspar (K ...
Bo Li (19583689), Shenghua Li (39556)
core
Potassium release from K-bearing minerals treated with organic acids under laboratory conditions
Discover SoilBackground and aims Potassium (K)-bearing minerals are vital for soil fertility and act as slow-release reservoirs for plant nutrients. Organic acids, such as oxalic and citric acids, enhance K dissolution.
Ayodeji Sunday Awoniyi +5 more
doaj +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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Mineral Reaction Kinetics During Water–Rock Interactions of Julong Hot Springs, Northern China
GeofluidsTo elucidate the water–rock interaction mechanisms of the Julong Hot Springs in Changbai Mountain, this study first analyzed the leaching patterns of hydrochemical components in water–rock interactions. The PHREEQC software was then utilized to calculate
Yapeng Tuo +6 more
doaj +1 more source
Bacterial Bioweathering of K-feldspar and Biotite in Granite [PDF]
Microorganisms are influential in environmental earth materials. Elemental circulation, environmental changes and the Earth evolution have been associated with microorganisms.
上島, 雅人 +4 more
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Secondary K-feldspar at the Precambrian–Paleozoic unconformity, southwestern Ontario
, 1995 The Precambrian–Paleozoic boundary in the subsurface of southwestern Ontario commonly is characterized by secondary K-feldspar. In the weathered and altered Precambrian granitoid gneisses at the unconformity, secondary K-feldspar has replaced ...
Robert H. McNutt +3 more
core +1 more source
Frontiers in Environmental ArchaeologyBy 2019, a long brick platform with some structures was exposed when the Thamirabarani River, the southernmost river in the city of Thirunelveli, dried up.
Paulramasamy Morthekai +11 more
doaj +1 more source