Results 41 to 50 of about 3,041 (205)

Feldspar Albitization With Implications for Reservoir Quality Evolution of Eocene Turbidite Sandstones in Offshore Espírito Santo Basin, Eastern Brazil

Journal of Petroleum Geology, EarlyView.
ABSTRACT The diagenetic albitization of plagioclase and K‐feldspar grains is a transformative process that significantly alters sandstone's detrital composition and formation water chemistry, impacting reservoir quality. In this study, Eocene turbidite sandstones from the offshore Espírito Santo Basin, Brazil, were investigated to elucidate the role of
Eveline E. Zambonato, Luiz F. De Ros, Howri Mansurbeg   +2 more
wiley   +1 more source

The Benefits of High Resolution Multispectral TIR Data and Its Impending Loss by NASA After Four Decades

Perspectives of Earth and Space Scientists, Volume 7, Issue 1, December 2026.
Abstract NASA has led multispectral (≥3 wavelength bands) thermal infrared (TIR) sensor development from the earliest days of the agency. These data are critical in addressing a wide range of scientific questions and administration priories by measuring both temperature (for wildfire and volcanic eruption monitoring, agricultural plant stress, and ...
M. S. Ramsey, K. Cawse‐Nicholson, J. B. Fisher, S. J. Hook, G. C. Hulley, C. M. Lee, M. Silvestri, J. O. Thompson, I. M. Watson   +8 more
wiley   +1 more source

A Newly Discovered Tablet‐Making Facility in Nineveh: Insights From Scientific Analysis

Archaeometry, Volume 68, Issue 6, Page 1294-1305, December 2026.
ABSTRACT This paper addresses the question of tablet technology in the Neo‐Assyrian capital city of Nineveh. Recent excavations in the lower town of Nineveh by the Iraqi–Italian Archaeological Expedition uncovered an exceptional assemblage of more than 200 tablets from an elite residence that appears to have included a scriptorium.
Mathilde Jean, Michela Spataro, Jonathan Taylor, Gianfranco Ulian, Giovanni Valdré, Gabriele Giacosa, Eleonora Mariani, Nicolò Marchetti   +7 more
wiley   +1 more source

Freezing on a Chip—A New Approach to Determine Heterogeneous Ice Nucleation of Micrometer-Sized Water Droplets

Atmosphere, 2018
We are presenting a new approach to analyze the freezing behavior of aqueous droplets containing ice nucleating particles. The freezing chip consists of an etched and sputtered (15 × 15 × 1) mm gold-plated silicon or pure gold chip, enabling the ...
Thomas Häusler, Lorenz Witek, Laura Felgitsch, Regina Hitzenberger, Hinrich Grothe   +4 more
doaj   +1 more source

Variation in Perthitic Microcline From a Zoned Pegmatite [PDF]

, 1964
Quantitative microscopic and chemical anaylses of 12 specimens of microcline, most of them perthitic, from the zoned Hugo pegmatite in the Black Hills near Keystone, South Dakota, have yielded data that can be used to estimate the temperatures of ...
Tullis, Terry E.
core   +1 more source

An intrusive-like tectonic breccia in the archipelago of southwestern Finland [PDF]

Bulletin of the Geological Society of Finland, 1986
On an islet in the archipelago of southwestern Finland with metamorphic rocks belonging to the Svecofennian zone it is possible to follow in exposure for a distance of some metres the transition from a layered paragneiss with amphibolite bands to a ...
N. Edelman, L. Bergman, B. Lindberg
doaj   +1 more source

The Wilson Cycle of the North Altyn Ocean: A Record of Subduction Initiation, Slab Rollback, and Final Closure

Geochemistry, Geophysics, Geosystems, Volume 27, Issue 10, October 2026.
Abstract The North Altyn ophiolitic belt was formed by the subduction–closure of the Altyn segment of the Proto–Tethys Ocean and recorded the accretion of Tarim to northern Gondwana, but the timing of initial subduction and detailed tectonic transition processes remain poorly constrained. This study reports the oldest Phanerozoic magmatic record of 537 
Long Chen, Jinlong Yao, Guochun Zhao, Yigui Han, Qian Liu, Donghai Zhang, Xijun Zhao, Hang Yang, Wei Li   +8 more
wiley   +1 more source

Mineral self-organization during the orthoclase-microcline transformation in a granite pegmatite

, 2008
International audienceThe orthoclase-microcline transformation has been studied in perthitic K-feldspars from a granite pegmatite (Lavra do Fermín, Linópolis, Minas Gerais, Brazil) showing pristine characteristics formed in the subsolidus stage ...
Sánchez-Muñoz, Luis, García-Guinea, Javier, Campos, Rocio, Sanz, Jésus, Rouer, Olivier, Bény, Jean-Michel, de Moura, Odulio J.M.   +6 more
core   +1 more source

Utilizing Taguchi method and in situ X-ray powder diffraction monitoring to determine the influence of mechanical activation conditions on the physico-chemical properties and Al leachability of K-feldspar

Journal of Materials Research and Technology
K-feldspar represents an important natural resource of potassium and aluminum. Within the framework of this study, the K-feldspar was mechanically activated in a planetary ball mill under different conditions planned according to 43 Taguchi orthogonal ...
Matej Baláž, Mustafa Birinci, Kader Şentürk, Marcela Achimovičová, Peter Baláž, Imelda Octa Tampubolon, Tomislav Stolar, Ralf Bienert, Franziska Emmerling, Sema Erdemoğlu, Hikmet Sis, Murat Erdemoğlu   +11 more
doaj   +1 more source

Microfluidic immersion freezing of binary mineral mixtures containing microcline, montmorillonite, or quartz [PDF]

Atmospheric Chemistry and Physics
Mineral dusts are among the most active ice-nucleating particles present in cloud droplets, with their properties influencing radiative properties and precipitation formation.
N. Shardt, N. Shardt, F. N. Isenrich, J. Nette, C. Dreimol, C. Dreimol, N. Ma, Z. A. Kanji, A. J. deMello, C. Marcolli   +9 more
doaj   +1 more source