Results 31 to 40 of about 2,787 (213)

Volcanogenic features of IOCG deposits of North Carajás, Brazil, and related constraining evidence

open access: yesJournal of the Geological Survey of Brazil
The magnetitic Cu-Au (IOCG) deposits of north Carajás, Amazonian Craton, Brazil, are hosted in the Neoarchean (2.76 Ga), dominantly basaltic-greywacke Itacaiúnas metavolcanic-sedimentary sequence that evolved in a continental rift setting.
Ana Maria Dreher, Sérgio Martini
doaj   +1 more source

Geological and isotopic constraints on the copper ore formation in Ta Phoi area, Lao Cai province, Northwestern Vietnam

open access: yesГорные науки и технологии
The Ta Phoi copper deposit, located in the northeastern Phan Si Pan zone, Northwestern Vietnam, is a significant site of Neoproterozoic Cu mineralization.
K. T. Hung, D. X. Ngo
doaj   +1 more source

Flood basalts and metallogeny: The lithospheric mantle connection

open access: yes, 2008
Continental flood basalts, derived from mantle plumes that rise from the convecting mantle and possibly as deep as the core-mantle boundary, are major hosts for world-class Ni-Cu-PGE ore deposits.
O'Reilly, Suzanne   +4 more
core   +1 more source

Rapid Changes in Southern Ocean Upper‐Water Temperature Linked to Shift of the Southern Hemisphere Westerlies Since the Last Glacial

open access: yesGeophysical Research Letters, Volume 53, Issue 15, 16 August 2026.
Abstract The pattern and cause of upper‐water temperature (UWT) variations on millennial timescales in the Southern Ocean (SO) and the mechanism of their interaction with high‐latitude Northern Hemisphere climate remain unclear. Here, we reconstructed millennial‐scale subsurface temperature (subST) records from the Weddell Sea during the Last Glacial ...
Tong Wang   +9 more
wiley   +1 more source

Rare Earth Elements exploration in Brazil: Integrated analysis of mining rights, projects and metallogenic provinces

open access: yesJournal of the Geological Survey of Brazil
Rare earth elements (REEs) are essential inputs for advanced technologies associated with the global transition to low-carbon systems. The increasing demand for permanent magnets, electric mobility, and renewable energy sources has intensified the ...
Lucy Takehara   +3 more
doaj   +1 more source

Paleozoic Granitic Rocks from the Telmen Complex in the Tarvagatai Block, Central Mongolia: Petrogenesis, U-Pb geochronology, and its tectonic implications

open access: yesMongolian Geoscientist, 2023
The Tarvagatai Block is located in the northern part of Central Mongolia, which is a widespread occurrence and occupies roughly 60% of the whole exposure along the Khangai fault and the Tarvagatai uplift.
Naidansuren Tungalag   +5 more
doaj   +1 more source

Event Deposits Recorded Over the Past 800 kyr in IODP Hole U1433A (South China Sea): Implications of a Revised Methodology for Chronology and Paleoclimate Reconstruction

open access: yesGeochemistry, Geophysics, Geosystems, Volume 27, Issue 8, August 2026.
Abstract Instantaneous event deposits such as turbidites, debrites, and slumps are common and frequently occur in marginal seas. These instantaneous deposits represent seconds to days in duration, and can therefore significantly impact age‐depth models and interpretation of paleoclimate history based on thick sedimentary sequences recovered in deep ...
Xunpeng Li   +8 more
wiley   +1 more source

GEOLOGY AND METALLOGENY OF THE DRINA-IVANJICA METAMORPHIC COMPLEX IN EASTERN BOSNIA – WESTERN SERBIA [PDF]

open access: yes, 2006
This paper gives a critical review of all relevant, published works on the stratigraphy, tectonics, magmatism, metamorphism and metallogeny of the metamorphic complex of the Drina-Ivanjica Formation in eastern Bosnia-western Serbia. Special attention was
Ivan Jurković
core   +2 more sources

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

What Earth Erases: Weathering Diversity of Mineral Phases Formed in a Highly Reduced Environment Hosted in Aubrites

open access: yesJournal of Geophysical Research: Planets, Volume 131, Issue 8, August 2026.
Abstract Meteorites serve as an exceptional source of insight into our planet and the Solar System. Most meteorite fragments were recovered hundreds to thousands of years after their fall, and therefore exhibit varying degrees of terrestrial weathering, which has altered or completely removed weather‐sensitive mineral phases.
M. Kołodziej   +4 more
wiley   +1 more source

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