Results 41 to 50 of about 607 (138)

Suprasubduction ophiolite (SSZ) components in a middle to lower upper Jurassic Hallstatt Mélange in the Northern Calcareous Alps (Raucherschober/Schafkogel area)

Geosystems and Geoenvironment, 2023
The Northern Calcareous Alps in the Western Tethys realm were affected in Middle to Late Jurassic times by a mountain building process triggered by ophiolite obduction similar to that in the Inner Western Carpathians or Inner Dinarides.
Sebastian P. Drvoderic, Hans-Jürgen Gawlick, Hisashi Suzuki, Felix Schlagintweit   +3 more
doaj   +1 more source

Diagenetic controls on porosity evolution and pore type organisation in microporous carbonate rocks: Evidence for mesogenetic porosity formation

Sedimentology, EarlyView.
ABSTRACT Microporous carbonate rocks typically record complex diagenetic histories driven by microbial activity and fluid interactions within multiple diagenetic environments. The relative roles of meteoric and burial diagenetic processes in pore evolution remain debated, particularly within Cretaceous carbonate systems of the Middle East, as does the ...
Hugues Bitault, Cathy Hollis, Alain Tonetto, Pierre Deschamps, Philippe Léonide, François Fournier   +5 more
wiley   +1 more source

DIACHRONOUS EVOLUTION OF BACK-ARC BASINS IN THE SOUTH TIANSHAN: INSIGHTS FROM STRUCTURAL, GEOCHRONOLOGICAL AND GEOCHEMICAL STUDIES OF THE WUWAMEN OPHIOLITE MÉLANGE

Геодинамика и тектонофизика, 2017
The South Tianshan is located to the north of the Tarim block and defines the southern margin of the Paleozoic Central Asian Orogenic Belt (CAOB). This study presents new structural data, geochronological and geochemical results for the Wuwamen ophiolite
Bo Wang, Yazhong Zhai, Paul Kapp, Koen de Jong, Linglin Zhong, Hongsheng Liu, Yuzhou Ma, Hujun Gong, Hongyan Geng   +8 more
doaj   +1 more source

Accessory mineralisations in lherzolites of Northern Kraka massif (South Urals)

Georesursy
The findings of platinum group metal mineralization (PGM) and the distribution of platinum group elements (PGE) in lherzolites of the Northern Kraka massif are described.
D. E. Saveliev, R. A. Gataullin
doaj   +1 more source

Geochemistry of amphibolites and related graphitic gneisses from the Suchý and Malá Magura Mountains (central Western Carpathians) – evidence for relics of the Variscan ophiolite complex

Geologica Carpathica, 2015
Three small bodies of amphibolites and associated graphitic gneisses from the Suchý and Malá Magura Mountains (Tatric Megaunit, central Western Carpathians) have been studied by petrographic and geochemical methods.
Ivan Peter, Méres Štefan
doaj   +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, Robert Schöner, Reinhard Gaupp, Andreas Kronz, Benjamin Bomfleur, Joerg W. Schneider, Lothar G. Viereck   +6 more
wiley   +1 more source

Lithofacies, petrography, and geochemistry of the Lamphun oceanic plate stratigraphy: As a record of the subduction history of Paleo-Tethys in Chiang Mai-Chiang Rai Suture Zone of Thailand

Open Geosciences
The Mélange in Lamphun Province, situated in the southern region of the Chiang Mai-Chiang Rai Suture Zone (CMCRSZ), remains inadequately explored. This study employs field investigations and petrographic analysis to delineate the characteristics of the ...
Phajuy Burapha, Singtuen Vimoltip, Poatprommanee Pee, Boonnawa Chanakan   +3 more
doaj   +1 more source

High‐Resolution Magnetic‐Geochemical Mapping of the Serpentinized and Carbonated Atlin Ophiolite, British Columbia: Toward Establishing Magnetometry as a Monitoring Tool for In Situ Mineral Carbonation

Geochemistry, Geophysics, Geosystems, 2023
We address in situ serpentinization and mineral carbonation processes in oceanic lithosphere using integrated field magnetic measurements, rock magnetic analyses, superconducting quantum interference device (SQUID) microscopy, microtextural observations,
Masako Tominaga, Andreas Beinlich, Eduardo A. Lima, Paiden Pruett, Noah R. Vento, Benjamin P. Weiss   +5 more
doaj   +1 more source

Beach Gold and Heavy Mineral Concentrates on Tiwai Spit Gravel Strand Plain, Southland, New Zealand

New Zealand Journal of Geology and Geophysics, Volume 69, Issue 3, September 2026.
The Holocene Tiwai Spit on Foveaux Strait is a 12 km by 2 km gravel‐dominated strand plain, ∼10 m above present sea level. Gravel clasts are dominated by well‐rounded quartz cobbles, pebbles and granules derived from Otago Schist 200 km to the north in evolving river drainage systems during late Cenozoic.
Marshall Palmer, Dave Craw
wiley   +1 more source

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, Maria Giuditta Fellin, Cristina Stefani, Eva Enkelmann, Iginio Dieni, Stefano Sanchetti   +5 more
wiley   +1 more source