Results 71 to 80 of about 1,166,006 (167)

The Occurrence and Morphology of Naturally Occurring Respirable Mordenite Mineral Fibres in New Zealand

open access: yesNew Zealand Journal of Geology and Geophysics, Volume 69, Issue 2, June 2026.
Mordenite is a naturally occurring zeolite mineral that is the seventh most common zeolite mineral globally, forming at low temperatures (≥100°C) in hydrothermal systems. In New Zealand, extensive deposits of mordenite are commonly associated with areas of hydrothermal alteration, particularly in the Coromandel and Taupo Volcanic Zones.
Ayrton R. Hamilton   +6 more
wiley   +1 more source

The United States Magnetotelluric Array and the National Impedance Map

open access: yesReviews of Geophysics, Volume 64, Issue 2, June 2026.
Abstract The United States Magnetotelluric Array (USMTArray) data set, collected in the years 2006–2024, consists of more than 1,700 long‐period magnetotelluric stations covering the entirety of the contiguous United States on a quasi‐regular 70 km grid.
Anna Kelbert   +7 more
wiley   +1 more source

Finite Element Modelling of Synthetic Normal Resistivity Logging Tool: Insights Into Vein Parameters, Borehole Fluids and Electrode Configuration

open access: yesGeophysical Prospecting, Volume 74, Issue 5, June 2026.
ABSTRACT Borehole resistivity logging can play an important role in subsurface exploration by enhancing the accuracy of surface data inversion models. However, its application in the mining industry remains limited due to challenges posed by complex geological formations, particularly in vein‐hosted deposits such as orogenic gold and porphyry copper ...
Yasaman Nemati   +3 more
wiley   +1 more source

Magmatic Volatile Controls on Cu and Mo Mineralization in Collisional Porphyry Systems

open access: yes
Porphyry deposits represent globally significant sources of Cu and Mo, yet the magmatic volatile controls on Cu versus Mo metallogenic divergence remain poorly quantified in collisional settings.
Qiushi Zhou   +3 more
core   +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

NEW DATA ON ORE MINERALOGY OF THE AK-SUG PORPHYRY Au-Mo-Cu DEPOSIT (NORTHEASTERN TUVA) [PDF]

open access: yesМинералогия
New data on ore mineralogy of the Ak-Sug porphyry Au-Mo-Cu deposit (Northeastern Tuva) are presented as a result of study of ore composition using optical and scanning electron microscopy.
M.V. Shadchin   +5 more
doaj   +1 more source

Trace elements in magnetite from porphyry Cu–Mo–Au deposits in British Columbia, Canada [PDF]

open access: yes, 2016
This study examines trace elements in hydrothermal magnetite from five porphyry Cu–Mo–Au deposits and two skarns in British Columbia, Canada. Trace element concentrations vary several orders of magnitude both within and between magnetite from skarn and ...
Grondahl, Carter   +3 more
core   +1 more source

Origin and Geodynamic Mechanism of the Tibetan Demingding Porphyry Mo (Cu) Deposit from Oceanic Subduction to Continental Collision

open access: yes, 2022
Demingding is a promising porphyry Mo-dominated deposit recently discovered in the eastern Gangdese metallogenic belt in Tibet, China. We present zircon U-Pb-Lu-Hf isotopic studies, as well as geochemical data of the late monzogranites and the prior ...
Kai Dong   +3 more
core   +1 more source

The Main Mineral Typomorphic Characteristics of the Henan Tangjiaping Molybdenum District Using X-ray Diffraction and Rock Mineral Identification Technology

open access: yesYankuang ceshi, 2015
The Tangjiaping molybdenum deposit, discovered in 2006, is a large-scale porphyry molybdenum deposit. The studies of its basic geological work and metallogenic regularity have been completed by previous researchers with conventional geological methods ...
ZHOU Jiao-hua   +3 more
doaj   +1 more source

Beneficiation of a High Pelitic Porphyry Copper-molybdenum Ore

open access: yesKuangchan zonghe liyong
[Objective] The main metallic minerals in the porphyry copper-molybdenum ore are molybdenite and chalcopyrite. The high mud content has a significant impact on the flotation indicators of the porphyry copper-molybdenum ore.
Xiaosong TIAN   +5 more
doaj   +1 more source

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