Results 81 to 90 of about 2,316 (218)

Prediction of Fault and Fracture Density From Seismic Attributes and Machine Learning Models Calibrated With Borehole Image Logs

Basin Research, Volume 38, Issue 3, May–June 2026.
This study integrates post‐stack seismic attributes with a CNN‐based workflow to characterize sub‐seismic deformation in shale gas reservoirs. A near‐linear correlation is established between seismic characterization methods and borehole deformation counts.
Yuxin Hao, Rebecca Bell, Abdulqadir Cader, Yanghua Wang   +3 more
wiley   +1 more source

Aqueous alteration in C2‐ung Bells through the analysis of carbonates – Does a CR origin ring true?

Meteoritics &Planetary Science, Volume 61, Issue 5, Page 927-941, May 2026.
Abstract Bells is an ungrouped carbonaceous chondrite that has in recent years been proposed as a CR‐an. This link to CR chondrites has previously been identified through the analysis of anhydrous silicates, for example, oxygen isotopic compositions of olivine (Marrocchi et al., 2023).
L. J. Riches, M. D. Suttle, I. A. Franchi, X. Zhao, M. M. Grady   +4 more
wiley   +1 more source

Structure of the North‐Central Chile Subduction Zone From Local Earthquake Tomography

Journal of Geophysical Research: Solid Earth, Volume 131, Issue 4, April 2026.
Abstract The fluid cycle in subduction zones prescribes large parts of its structure and seismogenic behavior. Background seismicity inside the downgoing slab is linked to fluid release from dehydration reactions, whereas fluid overpressure along the plate interface can alter interplate coupling, megathrust earthquakes, and the presence or absence of ...
Nicolás Hernández‐Soto, Christian Sippl, Matthew Miller, Dietrich Lange, Frederik Tilmann, Diego González‐Vidal, Juan Carlos Baez, Anne Socquet, Marcos Moreno   +8 more
wiley   +1 more source

Erosion of porphyry copper deposits estimated by quantitative elemental content analysis on the example of Aktogay and Sungun ore fields

Известия высших учебных заведений: Геология и разведка
Background. Porphyry copper deposits are attracting increased attention, which determines the relevance of studying their geochemical patterns to ensure a greater efficiency of geological fore casting. Aim.
T. P. Morozova, V. V. Dyakonov
doaj   +1 more source

Hydrothermal mineralization and alteration in the Ilovica Cu-Au porphyry deposit, Eastern Macedonia [PDF]

As a result of the latest detailed studies carried out by the Phelps Dodge company and continued by the Euromax company, the Ilovitsa deposit has been classified as a Cu-Au porphyry deposit.
Doneva, Blagica, Panevska Nikolova, Milica, Spasovski, Orce   +2 more
core  

Geochemical and mineralogical dispersal in till from the Mount Polley Cu-Au porphyry deposit, central British Columbia, Canada

, 2016
The Quesnel terrane in the Interior Plateau of British Columbia, Canada, is highly prospective for locating new porphyry deposits; however, the bedrock in this region is obscured by a nearly continuous blanket of till, making mineral
M.I. Leybourne (2843813), B.C. Ward (2843804), T. Ferbey (2843807), S. Hashmi (2843810), A. Plouffe (2843801)   +4 more
core   +1 more source

Geological significance of Early Triassic porphyry Cu mineralization in the eastern Xar Moron–Changchun Metallogenic Belt, Northeast China: a case study of the newly-discovered Guokuidingzi Cu deposit

, 2021
The Guokuidingzi porphyry copper deposit is a poorly studied deposit located in the eastern Xar Moron-Changchun Mo–Cu Metallogenic Belt (XCMB) of the northern margin of the North China Craton.
Ren, Yun-sheng, Wang, En-de, Yang, Qun, Li, Jing-mou, Huizenga, Jan-Marten, Wang, Xi, Wang, Bin   +6 more
core   +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, Marnie Forster, Wim Spakman, Hielke Jelsma, Francois Gaboury, Gordon Lister   +5 more
wiley   +1 more source

New Zealand's Second Meteorite: Makarewa (find, L4, S5, W2)

New Zealand Journal of Geology and Geophysics, Volume 69, Issue 1, March 2026.
One of the most remarkable discoveries of a meteorite in New Zealand was that of Makarewa. Discovered in 1879, Makarewa is a ‘find’ that was uncovered a metre below the surface of a clay bank during excavation works for a train line in the southern South Island.
Mia R. E. Boothroyd, James M. Scott, Marshall C. Palmer, Rasmus Andreason   +3 more
wiley   +1 more source

Multiple tectonic-magmatic Mo-enrichment events in Yuleken porphyry Cu-Mo deposit, NW China and its’ implications for the formation of giant porphyry Mo deposit

, 2021
International audienceThe Yuleken porphyry Cu-Mo deposit located in the Chinese Altay-East Junggar, a section of the Central Asian Orogenic Belt, the world's largest Phanerozoic subduction-accretionary orogen, witnessed the multistage tectonic-magmatic ...
Hong, Tao, Dolejš, David, Schlöglová, Kateřina, Laurent, Oscar, Xu, Xing-Wang, Zhai, Ming-Guo, Gao, Jun, Wang, Yue-Jun   +7 more
core   +1 more source