Results 151 to 160 of about 26,142 (276)
Feldspar : mineral composition, geology and petrogenesis significance [PDF]
In this book, the authors present current research in the study of the mineral composition, geology and petrogenesis significance of feldspar, a group of rock-forming tectosilicate minerals that make up as much as 60% of the Earth's crust.
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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 +8 more
wiley +1 more source
Composition and Provenance of Victoria Group Sandstones in Southern North Victoria Land, Antarctica
New Zealand Journal of Geology and Geophysics, Volume 69, Issue 3, September 2026.Three distinct source areas contributed to sandstones of the Victoria Group within the Transantarctic Basin in southern North Victoria Land. During the Permian, quartzose sandstones were derived from erosion of the local Ross Orogen, likely from an uplifted swell in the area of today's Ross Sea, the Ross High.
Martin Elsner +6 more
wiley +1 more source
Cathodoluminescence Response From Sanidine Feldspar [PDF]
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, Can, N, Canimoglu, A
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Exhumed eo‐Alpine High‐Pressure Rocks Fed Campanian Turbidites in Eastern Sardinia
Geochemistry, Geophysics, Geosystems, Volume 27, Issue 8, August 2026.Abstract This study investigates the detrital record of the early orogenic evolution of the Sardinia‐Calabria system, preserved in Upper Cretaceous arenites exposed in eastern Sardinia. Sardinia and Corsica form a continental block that includes a segment of the Alpine orogen and of its former foreland basin.
Francesco Massari +5 more
wiley +1 more source
Geochemistry, Geophysics, Geosystems, Volume 27, Issue 8, August 2026.Abstract This study integrates new zircon U–Pb ages, zircon εHf(t)–δ18O isotopic data, and whole‐rock geochemistry to refine the temporal and spatial framework of magmatism in the southern Northern Andes (SNA) from ∼65 to 6 Ma. The San Lucas, Catamayo, Portachuela, and Gonzanamá batholiths and magmatic suites, along with Late Miocene plutons, display ...
J. Iglesias +14 more
wiley +1 more source
Journal of Geophysical Research: Earth Surface, Volume 131, Issue 8, August 2026.Abstract Long‐distance aeolian dust transport represents one of the largest sediment fluxes on Earth, with North Africa being a dominant source. The island of Crete in the Eastern Mediterranean lies within major transport pathways but remains underexplored regarding multi‐proxy fingerprinting of deposited dust.
S. Bitzan +5 more
wiley +1 more source
A long-lived impact-generated hydrothermal system at the Chicxulub impact structure. [PDF]
Commun Earth EnvironPickersgill AE +17 more
europepmc +1 more source
Automated Mineral Identification and Rock‐Type Classification of Lunar Mare Basalts Using SEM Images
Journal of Geophysical Research: Machine Learning and Computation, Volume 3, Issue 4, August 2026.Abstract We present an automated system for identifying minerals and classifying rock types in Apollo lunar mare basalts using scanning electron microscopy (SEM) imagery. Mineral segmentation is based on a U‐Net architecture, supplemented by two scale‐aware models designed to incorporate pixel size information.
Ji‐In Jung +3 more
wiley +1 more source