Results 1 to 10 of about 379 (209)

Reconnaissance of promising areas for sandstone type uranium deposits in the Urmia-Naqadeh-Mahabad basin, NW Iran

open access: yesJournal of Economic Geology, 2018
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
doaj   +2 more sources

Timing and Style of Tectonic Assembly and Exhumation of the McHugh Complex Within the Chugach‐Kodiak Accretionary Wedge, Alaska

open access: yesTectonics, Volume 45, Issue 2, February 2026.
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
wiley   +1 more source

The Neoproterozoic Throssell Range Group, Western Australia: A Peri‐Marginal Continental Basin in Rodinia and Its Implications for the Centralian Superbasin

open access: yesBasin Research, Volume 38, Issue 1, January–February 2026.
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
wiley   +1 more source

Localized and Transient Oxygenation of Shallow Oceans of Southwestern Laurentia at the Ediacaran–Cambrian Boundary

open access: yesGeobiology, Volume 24, Issue 1, January/February 2026.
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
wiley   +1 more source

Restoring the Missing Late Cretaceous Arc of Iran

open access: yesGeochemistry, Geophysics, Geosystems, Volume 26, Issue 12, December 2025.
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
wiley   +1 more source

Sandstone-type uranium mineralization coupled with extensional tectonics

open access: yesNuclear Engineering and Technology
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
doaj   +1 more source

Experimental study of the influence of borehole parameters on prompt fission neutron uranium logging and its corrections

open access: yesNuclear Engineering and Technology
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
doaj   +1 more source

Pore characteristics and seepage simulation of sandstone-type uranium ore in the 512 deposit, Xinjiang

open access: yes地质科技通报
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
doaj   +1 more source

Identification of Astronomical Cycles in Upper Cretaceous Sifangtai Formation and Constraints on Depositional Age of Uranium Mineralized Sandstones in Qian’an Area of Songliao Basin

open access: yesYuanzineng kexue jishu
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
doaj   +1 more source

Chemical Compositions of Fluid Inclusions in the Jalal –Abad iron oxide deposit, North West of Zarand, Using LA-ICP-MS Microanalysis

open access: yesJournal of Economic Geology, 2017
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
doaj   +1 more source

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