Results 1 to 10 of about 379 (209)
Introduction The Urmia-Naqadeh-Mahabad basin is a part of the south and west Urmia Lake drainage basin that covers some parts of East-and-West Azerbaijan and northern Kurdistan.
Mohammad Reza Hezareh
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Abstract Accretionary complexes are key archives of subduction zone processes, preserving records of forearc growth, deformation, and tectonic reorganization. The Chugach–Kodiak accretionary complex of southern Alaska records Jurassic to Cretaceous underplating at shallow to intermediate subduction conditions. The McHugh Complex, an imbricated sequence
Ismay Vénice Akker +9 more
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This study of recent exploration drillcore reveals two sequences separated by a disconformity. Basal alluvial fan to shallow marine lithofacies suggest reactivation of basement faults, and a distinct upwelling signature points to a flooded margin, controlled by differential subsidence of diverse Proterozoic lithosphere.
Ross B. Campbell +9 more
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ABSTRACT The Ediacaran–Cambrian boundary, which precedes one of the most significant biotic diversification events in Earth's history, is associated with a global negative carbon isotope excursion termed the BAsal Cambrian carbon isotope Excursion (BACE).
Watsawan Chanchai +6 more
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Restoring the Missing Late Cretaceous Arc of Iran
Abstract Persistent arc magmatism archives fluid transport and mantle partial melting in subduction zones. However, arc magmatism often exhibits different magmatic records along the strike, as seen in the Tethyan orogenic belt. During Neo‐Tethys subduction under Iran, there was pulsed arc magmatism with Middle Jurassic and Eocene magmatic flare‐ups ...
Yiyang Lei +10 more
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Sandstone-type uranium mineralization coupled with extensional tectonics
While compressional tectonics has long been recognized as a significant factor in uranium mineralization, the role of extensional tectonics remains comparatively understudied. This investigation analyzes representative sandstone-hosted uranium provinces,
Bocheng Zhang +7 more
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In prompt fission neutron uranium logging, borehole environmental parameters affect the measured results and must be corrected. In order to explore the influence of borehole parameters on the interpretation of logging results, this paper builds a ...
Pengfei Zhou, Bin Tang
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Objective In situ leaching is a uranium extraction process in which a solution reacts with uranium-bearing minerals in a saturated aquifer and then uranium in the flowing solution is extracted through exchange.
Yaling LIU +6 more
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Cyclostratigraphy is widely applied in establishing high-precision sequence stratigraphic frameworks and astronomical time scales, making it an important field in the quantitative study of sedimentology.
WANG Junxian1, 2, , LI Ziying1, 2, , XING Zuochang1, 2, LIU Jungang1, 2, SHI Qingping1, 2, TIAN Mingming1, 2, JIA Licheng1, 2
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Introduction The Poshtebadam Bafq Zarand district in central Iran is a world class iron oxide province. This region contains over two billion tons of iron ore reserves within more than 34 major magnetic anomalies and deposits in an area of 7,500 km2 ...
Behrouz Karimi Shahraki, Behzad Mehrabi
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