Results 31 to 40 of about 10,620 (270)

The role phase-separation and related topography in the exceptional ice-nucleating ability alkali feldspars [PDF]

, 2017
Our understanding of crystal nucleation is a limiting factor in many fields, not least in the atmospheric sciences. It was recently found that feldspar, a component of airborne desert dust, plays a dominant role in triggering ice formation in clouds, but
Whale, Thomas F., Kim, Yi-Yeoun, Murray, Benjamin J., Kim, Y, Fiona C. Meldrum, Christenson, Hugo K., Hugo K. Christenson, Whale, TF, Meldrum, F, Meldrum, Fiona C., Thomas F. Whale, Mark A. Holden, Holden, MA, Benjamin J. Murray, Murray, B, Christenson, H, Kulak, AN, Alexander N. Kulak, Kulak, Alexander N., Yi-Yeoun Kim, Holden, Mark, Holden, Mark A.   +21 more
core   +1 more source

Potassium Fractionation and Stock in Clay Soils: Influence of Geochemical and Mineralogical Properties in Yogyakarta Region, Indonesia

Caraka Tani: Journal of Sustainable Agriculture
Research on potassium (K) dynamics in upland clay soils, particularly those derived from tertiary-aged rocks, remains limited in Yogyakarta. This study aimed to investigate the relationships among geochemical indices, K fractions, and K stock in upland ...
Eko Hanudin, Padana Aperta Barus, Makruf Nurudin, Sri Nuryani Hidayah Utami   +3 more
doaj   +1 more source

K-feldspar enrichment in the Pacific pelagic sediments before Miocene

Progress in Earth and Planetary Science, 2023
The mineralogy of atmospheric silicate dust controls its interaction with clouds. K-feldspar has a remarkably high ice-nucleating activity, and its distribution may have influenced the global climate throughout Earth's history.
Yoichi Usui, Toshitsugu Yamazaki
doaj   +1 more source

Feldspars from Adamant pluton, British Columbia

, 1969
Adamant pluton is a zoned body of igneous origin, with a core of pyroxene monzonite transitional outward to hornblende quartz monzonite and biotite-hornblende granodiorite.
Peter E. Fox, John M. Moore Jr.
core   +1 more source

Possible reasons for anomalous fading in alkali feldspars used for luminescence dating of Quaternary deposits [PDF]

Estonian Journal of Earth Sciences, 2007
According to many publications, alkali feldspars are characterized by specific athermal (anomalous) fading of their thermoluminescence and optically-stimulated luminescence.
Jaek, Ivar, Molodkov, Anatoli, Vasilchenko, Valery   +2 more
doaj  

Feldspar: Application and Implementation [PDF]

, 2012
The Feldspar project aims to develop a domain specific language for Digital Signal Processing algorithm design. From functional descriptions, imperative code (currently C) is generated. The project partners are Ericsson, Chalmers and ELTE, Budapest. The background and motivation for the project have been documented elsewhere [3].
Emil Axelsson, Mary Sheeran
openaire   +2 more sources

Thermo-optical properties of optically stimulated luminescence in feldspars

, 1994
Optically stimulated luminescence processes in feldspars are subject to competing thermal enhancement and quenching processes: this article describes the thermal enhancement effects for orthoclase, albite and plagioclase feldspars.
L. Bøtter-Jensen, N.R.J. Poolton, Bøtter-Jensen, Lars, Bøtter-Jensen, L., Poolton, N.R.J., Johnsen, Ole, Johnsen, O., O. Johnsen   +7 more
core   +1 more source

Water‐based drilling fluids formulated with mature fine tailings

The Canadian Journal of Chemical Engineering, EarlyView.
Abstract Mature fine tailings (MFT) are persistent, highly stable colloidal suspensions generated as byproducts of bitumen extraction from oil sands. Given their environmental risks, identifying viable applications for MFT could reduce their accumulation while offsetting natural resource use.
Haichao Li, Reza Lashkari, Maen M. Husein   +2 more
wiley   +1 more source

First-Principles Study of the Structural Evolution of Microcline Under High Pressure

Crystals
Microcline is an important rock-forming mineral in the Earth’s crust, and characterizing its structural behavior under compression is essential for understanding the high-pressure response of feldspar minerals under geological conditions.
Baoyun Wang, Meisu Xiang
doaj   +1 more source

Exploring wave propagation behaviors in rock: A grain‐based perspective on mineral structures

Deep Underground Science and Engineering, EarlyView.
This study investigates wave propagation in rock at the grain scale using a grain‐based model, revealing that mineral elastic modulus significantly influences wave attenuation while grain size and distribution have limited effects. A novel peak particle velocity attenuation prediction model is proposed and validated for grain‐scale wave propagation ...
Zhiyi Liao, Jiachen Xu, Kai Zhang, Changtai Zhou   +3 more
wiley   +1 more source