Results 51 to 60 of about 1,312 (211)

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, Robert Schöner, Reinhard Gaupp, Andreas Kronz, Benjamin Bomfleur, Joerg W. Schneider, Lothar G. Viereck   +6 more
wiley   +1 more source

Multi-stage metamorphic and metasomatic imprints on apatite-monazite-xenotime assemblages in a set of small iron oxide-apatite (IOA) ore bodies, Prins Karls Forland, Svalbard [PDF]

, 2023
On Prins Karls Forland, Svalbard Archipelago, a set of small iron oxide-apatite (IOA) ore bodies have been discovered within a crustal shear zone, which deformed the polymetamorphosed Neoproterozoic metasedimentary rocks. The ores have various styles and
Schneider, David A., Harlov, Daniel E.,, Maraszewska, Maria, Harlov, Daniel E., Myhre, Per-Inge,, Majka, Jaroslaw, Manecki, Maciej, Broska, Igor, Majka, Jaroslaw,, Broska, Igor,, Maraszewska, Maria,, Schneider, David A.,, Myhre, Per-Inge, Manecki, Maciej,   +13 more
core   +1 more source

The principal component analysis for studying polymetasomatic processes in the contacts of carbonatitic complexes of the Kola Peninsula [PDF]

Vestnik MGTU, 2015
The paper presents a statistical analysis of chemical compositions sampling of rocks from contact aureole of the alkaline-ultrabasic carbonatitic massif Ozernaya Varaka by the principal component method.
Kozlov E.N.
doaj  

Global Cooling Driving the Increase in Erosion Rates Across the Himalaya Since the Quaternary

Geophysical Research Letters, Volume 53, Issue 13, 16 July 2026.
Abstract Late Cenozoic global cooling is well documented, yet its impact on erosion rates in active mountain belts, particularly after the onset of Quaternary glaciation, remain contentious. This ambiguity partially stems from the potential methodological biases in erosion rate quantification, particularly in the Himalaya, where recent studies report ...
Dongxu Cai, Guangwei Li, Huayu Lu, Qiang Su, Wenbin Zhu, Johan De Grave, Paul R. Eizenhöfer, Matthew Fox, Simon Mudd, Xianyan Wang   +9 more
wiley   +1 more source

Emplacement of Hybrid Continental‐Oceanic Arc Terranes Without Collision: The Devonian Calliope Arc (New England Orogen, Australia)

Tectonics, Volume 45, Issue 7, July 2026.
Abstract The accretion of allochthonous provinces, derived from oceanic plates, has traditionally been considered an important contributor to continental growth. However, increasing evidence shows that some oceanic terranes (e.g., island arcs) are not “exotic,” as suggested by the presence of continental‐derived sedimentary provenance.
Igor V. Gomes, Gideon Rosenbaum, Carlos A. Spier, Jack F. Ward, Luke A. Milan   +4 more
wiley   +1 more source

Origin, Tectonic Processes, and Metasomatism of Serpentinite in the Shimanto Accretionary Complex, SW Japan: Possible Diapiric Intrusion of Serpentinized Oceanic Lithosphere

Tectonics, Volume 45, Issue 7, July 2026.
Abstract Serpentinite plays a major role in the geodynamics of subduction zones. However, the processes by which serpentinite is incorporated into accretionary complexes, and the extent to which it interacts chemically and physically with accretionary lithologies, remain unclear.
Yusuke Shimura, Shunsuke Endo, Yoshihiro Asahara, Toshiki Haji, Kentaro Ushimaru, Koshi Yamamoto   +5 more
wiley   +1 more source

Hydrothermal mineral alteration patterns in the Mount Isa Inlier revealed by airborne hyperspectral data [PDF]

, 2011
High-resolution mineral maps derived from hyperspectral imaging (4.5 m pixel) enable the recognition of various types of hydrothermal alteration and the identification of fluid pathways.
Laukamp, C., T. Cudahy, N. H.S. Oliver, M. Jones, M. Thomas, J. S. Cleverley, Thomas, M., Jones, M., Cudahy, T., C. Laukamp, Oliver, N.H.S., Cleverley, J.S.   +11 more
core   +1 more source

Application of Machine Learning to Hydrothermal System Analysis: Geochemical Insights from the Bektakari–Bneli Khevi Ore Knot, Southern Georgia

Bulletin of the Mineral Research and Exploration
This study integrates geochemical, statistical, and machine learning methods to investigate hydrothermal systems and mineralization processes within southern Georgia's Bektakari–Bnelikhevi ore knot.
Giorgi Mindiashvili, David Bluashvili, Tornike Lipartia, Nino Jafaridze, Keti Benashvili   +4 more
doaj   +1 more source

Listvenites: new insights of a hydrothermal system fossilized in Cerro Matoso peridotites, Montelíbano, Córdoba Department, Colombia

Boletín Geológico, 2020
The products of metasomatic alteration (e.g., carbonation) of peridotites are called listvenites. Based on a description of the outcrops in the laterite deposit at Cerro Matoso located in the NW of Colombia, the mineralogical composition confirmed by ...
Andrés Castrillón, Javier Guerrero
doaj   +1 more source

Sequential Wedge Extrusion to Core Complex Extension: The Central Cycladic Detachment System on Syros, Greece

Tectonics, Volume 45, Issue 7, July 2026.
Abstract Syros island preserves pristine high‐pressure metamorphic rocks and provides invaluable insight into subduction zone processes. Contrasting views on the structural history impede placing the island in a clear tectonic framework, limiting the broader impact of preserved information.
Bertram Uunk, Fraukje Brouwer, Manuel de Paz‐Álvarez, Sander Taal, Lisa van de Beek, Martijn Ephraim, Guido Jonker, Naomi van den Ameele, Zoë Toorenburg, Boris Versteegh, Marjolein Daeter, Jan Wijbrans   +11 more
wiley   +1 more source