Results 71 to 80 of about 7,058,324 (263)
Influence of Na-feldspar grains within the K-feldspar fraction on IRSL dating [PDF]
The Dataset consists of sample information and the ages results of K-and Na-feldspar from Manuscript entiled "Influence of Na-feldspar grains within the K-feldspar fraction on IRSL dating".
Dongxue Li (17955290)
core +1 more source
Comparing the accuracy and precision of luminescence ages for partially-bleached sediments using single grains of K-feldspar and quartz [PDF]
, 2019 Glacial settings are considered to be the most challenging context for the application of luminescence dating. The optically stimulated luminescence (OSL) signal of quartz is often preferred for luminescence dating in partially-bleached settings as it ...
Buylaert, Jan-Pieter +5 more
core +1 more source
Petrography and Synsedimentary Processes of Carbonate beds of Fat’ha Formation. In selected sections at Al-Qayyara area, south of Mosul, Northern Iraq. [PDF]
Kirkuk Journal of Science, 2017 Fatha was studied in two sections at Alqayyara area southern of Mosul. Petrographically, Sands Fatha indicated composed of quartz monocrystalline and polycrystalline type, while the feldspar forming mostly of plagioclace feldspar and K-feldspar.
Muthanna Y.M
doaj +1 more source
Geological Journal, EarlyView.Integrated petrographic, mineralogical and geochemical data from the Hastanetepe Pb–Zn deposit (Balya, Türkiye) reveal multi‐stage hydrothermal alteration and a magmatic sulphur source. Fluid inclusion and sulphur isotope results indicate a complex fluid evolution responsible for skarn‐type Pb–Zn mineralization along limestone–dacite contacts ...
Esra Ünal‐Çakır
wiley +1 more source
MORPHOLOGICAL NOTES ABOUT AMAZONITE [PDF]
Минералогия, 2018 Morphological features of amazonite cause some onthogenic models of K-feldspars. The crystals of amazonite are zonal and sectorial. «Microcline lattice» of stresses in K-feldspar is formed after its growth during polymorphic transformation of monoclinic ...
V.A. Popov
doaj
Geological Journal, EarlyView.The composition of intrusive rocks suggests that the magma was likely generated in a subduction‐related setting. The arc crustal thickness in the Phnom Sro Ngam and Halo Prospects was probably < 40 km during emplacement. Zircon U–Pb age range indicates a correlation with Loei Fold Belt magmatic activity.
Sirisokha Seang +6 more
wiley +1 more source
The effect of band-tail states on the thermal stability of the infrared stimulated luminescence from K-feldspar [PDF]
, 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
Survival of the brightest? pIRIR dating of volcanic sediments in Sulawesi, Indonesia, using micro-aliquots of K-rich feldspar [PDF]
Volcanic sediments are challenging to date with luminescence-based methods. Both main minerals used for dating—quartz and K-rich feldspar—commonly have suboptimal luminescence properties when of volcanic origins, primarily a low signal intensity and, for
Sontag-González, M +6 more
core +1 more source
Geological Journal, EarlyView.Our petrochemical studies on ~1.2 Ga granitoids of the Natal Metamorphic Belt, South Africa, do not suggest any property similar to Phanerozoic‐style subduction‐related granitoids. Plot of Kotongweni Tonalite in Y versus Sr diagram (after Moyen 2011), note that most samples have Sr/Y < 50.
Palesa Leuta +2 more
wiley +1 more source
Luminescence dating of Chinese loess beyond 130 ka using the non-fading signal from K-feldspar [PDF]
, 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