Results 41 to 50 of about 759 (182)

Predictive Prospecting Using Remote Sensing in a Mountainous Terrestrial Volcanic Area, in Western Bangongco–Nujiang Mineralization Belt, Tibet

open access: yesRemote Sensing, 2023
The Bangongco–Nujiang metallogenic belt of Tibet is a main suture zone in the Qinghai–Tibet Plateau, which is known as an important porphyry–epithermal–skarn Cu-polymetallic mineralization zone in China.
Longyang Bai   +6 more
doaj   +1 more source

Geochemical and Isotopic Constraints on Long‐Lived Source Enrichment and Mantle Evolution in Paleoproterozoic Cratonic Lamprophyres

open access: yesGeochemistry, Geophysics, Geosystems, Volume 27, Issue 6, June 2026.
Abstract The cratonic lithospheric mantle records complex metasomatic processes and is frequently tapped by alkaline magmatism, offering a unique opportunity to trace the progressive evolution of the mantle. In the present contribution, we investigate a newly identified calc‐alkaline lamprophyre field from the Neoarchean Jonnagiri Schist Belt, Eastern ...
Sourav Naskar   +6 more
wiley   +1 more source

DIBROVSKOE URANIUM-TORIUM-RARE-EARTH ORE OCCURRENCE OF THE UKRAINIAN SHIELD (LITHO-STRATIGRAPHIC CRITERIА OF THE GENESIS AND LOCALIZATION OF ORE BODIES)

open access: yesГеохімія техногенезу, 2019
The paper compares the Dibrovskoe uranium-thorium-rare-earth ore occurrence of the Ukrainian shield (northern Azov region) by a num-ber of criteria (structural-tectonic, formational, stratigraphic, geochronological, lithological, mineral-petrographic ...
Pokalyuk V.   +4 more
doaj   +1 more source

Predicting the Sound Speed of Seafloor Sediments in the East China Sea Based on an XGBoost Algorithm

open access: yesJournal of Marine Science and Engineering, 2022
Based on the acoustic and physical data of typical seafloor sediment samples collected in the East China Sea, this study on the super parameter selection and contribution of the characteristic factors of the machine learning model for predicting the ...
Mujun Chen   +9 more
doaj   +1 more source

Geochemical Characteristics and Their Geological Significance of Zircon and Apatite From the Wunugetushan Porphyry Cu–Mo Deposit, Inner Mongolia, NE China

open access: yesActa Geologica Sinica - English Edition, Volume 100, Issue 3, Page 795-813, June 2026.
The key factors making the monzogranitic porphyry fertile for mineralization, including its high Cl, S, and H2O contents, high oxidation state, significant fluid exsolution, and multiple recharges of deep‐seated mafic magma, were all critical for the formation of the Wunugetushan porphyry Cu‐Mo deposit. ABSTRACT The Wunugetushan (Wushan) porphyry Cu–Mo
Genyuan JI   +4 more
wiley   +1 more source

Fragment of a central-type large structure located in southern Uganda and its metallogenic value

open access: yesИзвестия высших учебных заведений: Геология и разведка, 2020
For the southern regions of Uganda, the metallogenic value of the regional arc belt of dikes of the main and ultrabasic composition was considered. It is shown that it is part of the arc sector of a large central-type structure with a diameter of about ...
P. A. Ignatov   +3 more
doaj   +1 more source

Inversion of the physical properties of seafloor surface sediments based on AUV sub-bottom profile data in the northern slope of the South China Sea

open access: yesScientific Reports, 2021
Based on the seafloor reflection coefficient obtained from autonomous underwater vehicle (AUV) sub-bottom profile survey data of the northern slope of the South China Sea, combined with the sample test data of seafloor surface sediments, we use the Biot ...
Qingjie Zhou   +8 more
doaj   +1 more source

Poleward Shift of Arctic Oceanic CO2 Uptake From Asymmetric Seasonal Changes Under Climate Warming

open access: yesEarth's Future, Volume 14, Issue 5, May 2026.
Abstract The Arctic region plays a disproportionate role in the global carbon cycle by acting as a critical sink for atmospheric CO2. However, how Arctic air‐sea CO2 fluxes will respond to continued warming regarding their spatial and temporal changes remains poorly understood.
Rongrong Pan   +11 more
wiley   +1 more source

Rapid Slab Rollback Drives Early Cretaceous Back‐Arc Extension in NE China: Implication for Crustal Growth and Episodic Porphyry Mineralization

open access: yesGeochemistry, Geophysics, Geosystems, Volume 27, Issue 3, March 2026.
Abstract The subduction of the Paleo‐Pacific Plate beneath the NE Asian continental margin induced extensive magmatism, providing an excellent opportunity to investigate the interplay between plate dynamics, arc magmatism, continental crust formation, and porphyry mineralization.
Honghui Wang   +5 more
wiley   +1 more source

Gold metallogeny of Southern Mongolia

open access: yesРуды и металлы
Within the Southern Mongolia, the South Gobi gold ore belt stretching in the sublatitudinal direction for almost 1000 km is the most promising in terms of ore gold. Several gold ore regions are distinguished within its boundaries, the most significant of
Gaskov I. V.
doaj   +1 more source

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