Results 71 to 80 of about 292 (182)
Journal of Geophysical Research: Solid Earth, Volume 131, Issue 4, April 2026.Abstract The Southern Rocky Mountain Trench (SRMT) is a conspicuous valley in the eastern Canadian Cordillera. It lies above a sharp change in lithospheric strength and thickness and is occupied by a normal fault thought to have last been active in the Eocene.
T. Finley +5 more
wiley +1 more source
Testing Models for Upper Mantle Earthquakes in the Tanganyika‐Rukwa Rift, Africa
Journal of Geophysical Research: Solid Earth, Volume 131, Issue 4, April 2026.Abstract Rifts that initiate in mechanically strong, stable continental lithosphere are characterized by M > 5 earthquakes at depths >35 km near or below the crust mantle interface. Current models for deep rift zone earthquakes invoke elevated pore pressures associated with magmatism, and rapid stressing from magma intrusions.
Eduardo Arzabala +4 more
wiley +1 more source
Geochemistry, Geophysics, GeosystemsThe metaturbidite‐hosted, ∼380 Ma Dufferin gold deposit, Meguma terrane, northeastern Appalachian Orogen (Nova Scotia, Canada) is an orogenic gold deposit with mineralized saddle reef‐type quartz veins hosted by metasandstones and black slates in a ...
Mitchell J. Kerr +4 more
doaj +1 more source
Fluid-controlled element transport and mineralization in subduction zones
Solid Earth Sciences, 2018 Many of the world's metal deposits are associated with hydrothermal fluids in subduction zones, indicating the intimate relationship between subduction process and mineralization.
Yang-Yang Wang, Yilin Xiao
doaj +1 more source
Giant Porphyry Copper Deposits Caused by a Slab Jamming in the Mantle Transition Zone
Terra Nova, Volume 38, Issue 2, Page 106-115, April 2026.ABSTRACT Two giant porphyry copper deposits in the Southern Central Andes formed during the Miocene–Pliocene transition when a bend in the subducting Juan de Fernández hotspot chain jammed in the mantle transition zone, causing mega‐scale slab‐kinking. This geometry implies mechanical resistance that caused East–West compression and eventually a thrust‐
Nipaporn Nakrong +5 more
wiley +1 more source
Geochemistry, Geophysics, GeosystemsThe Kallianos Au‐Ag‐Te deposit is a Cenozoic orogenic‐style deposit on Evia, hosted in the Cycladic Blueschist Unit. Integrated field observations and isotopic data illustrate a connection between the structural architecture that hosts mineralization in ...
L. Hamel +3 more
doaj +1 more source
Journal of the Geological Survey of Brazil, 2018 The Castelo de Sonhos gold deposit (~1.5 Moz Au) is located in the southeastern Tapajós Gold Province and is hosted in variably deformed metaconglomerates and metasandstones of the Castelo dos Sonhos Formation, which was deposited between 2011 and 2050 ...
Joana Queiroz, Evandro Klein
doaj +1 more source
Economic GeologyAbstract The Jiangnan orogen, one of the largest gold-producing areas in China, has experienced multiple orogenic events with complex structural overprinting that is marked by multiple stages of magmatism, deformation, metamorphism, and orogenic gold mineralization.
Cheng Wang +8 more
openaire +1 more source
Frontiers in Earth ScienceOrogenic gold deposits represent a vital component of global gold reserves, functioning as both significant sources of gold and essential indicators for understanding crustal metallogeny within collisional tectonic environments.
KeXin Liu, Nan Jiang, YongQiang Zhang
doaj +1 more source
ORE GENESIS AND MINOR ELEMENTS OF OROGENIC GOLD DEPOSIT AT TAMILOUW– HAYA, SERAM ISLAND, INDONESIA
Bulletin of the Iraq Natural History Museum, 2021 The orogenic gold deposit of Tamilouw – Haya is hosted by slate and metapelitic rocks within Tehoru metamorphic complex. Gold and polymetallic sulfides mineralization at study area is predominantly formed in the form of veins, stockwork and breccia ...
Herfien Samalehu +2 more
doaj