Results 41 to 50 of about 18,299,024 (255)

Data for: Redox reactions control Cu and Fe isotope fractionation in a magmatic Ni-Cu mineralization system

open access: yes, 2020
Copper and Fe are redox-sensitive metals, and their isotopic compositions may potentially record changes of oxidation conditions in high-temperature magmatic Ni–Cu mineralization systems.
Chunji Xue (7975775)   +2 more
core   +2 more sources

Spatial Variations in Magmatic Volatile Influx and Fluid Boiling in the Submarine Hydrothermal Systems of Niuatahi Caldera, Tonga Rear‐Arc

open access: yesGeochemistry, Geophysics, Geosystems, 2022
Submarine caldera volcanoes may host several hydrothermal systems along the caldera wall and related to volcanic cones. Fluid boiling and magmatic volatile influx are common processes in shallow (
Jan J. Falkenberg   +10 more
doaj   +1 more source

Hafnium isotopic record of mantle-crust interaction in an evolving continental magmatic system [PDF]

open access: yes, 2020
Tracing the origin and evolution of magmas on their pathway through the lithosphere is key to understanding the magmatic processes that eventually produce eruptions.
Karakas, Ozge   +5 more
core   +1 more source

Complex Discontinuity Structure Beneath the Changbaishan-Tianchi Volcano Revealed by the P-Wave Coda Autocorrelation Method Based on Dense Seismic Array

open access: yesRemote Sensing
The Changbai volcano, a globally recognized hotspot of volcanic activity, has garnered significant attention due to its persistent seismicity and ongoing magma activity.
Hao Wen, You Tian, Cai Liu, Hongli Li
doaj   +1 more source

Zircon from Altered Monzonite Rocks Provides Insights into Magmatic and Mineralizing Processes at the Douay Au Project, Abitibi Greenstone Belt

open access: yesGeosciences, 2022
Zircon provides essential information on the age and oxidation state of magmatic systems and can be used to characterize magmatic-hydrothermal Au mineralizing systems.
Lucie Mathieu   +6 more
doaj   +1 more source

Insights Into Processes and Timescales of Magma Storage and Ascent From Textural and Geochemical Investigations

open access: yes, 2021
The mechanisms and timescales of magmatic evolution during storage in crustal reservoirs and ascent in the volcanic conduit exert an important control on both the evolution of precursory phenomena recorded during volcanic crises as well as the style and ...
Pappalardo, Lucia   +3 more
core   +1 more source

Petrologic Reconstruction of the Tieshan Magma Plumbing System: Implications for the Genesis of Magmatic-Hydrothermal Ore Deposits within Originally Water-Poor Magmatic Systems

open access: yes, 2020
Most genetic models for magmatic-hydrothermal ore deposits are based on the prerequisite that the parental magmas associated with mineralization are enriched in water (> similar to 4 wt %).
Zhou, Jin-Sheng   +3 more
core   +1 more source

Thermal Constraints on the Longevity, Depth, and Vertical Extent of Magmatic Systems

open access: yesGeochemistry, Geophysics, Geosystems, 2021
Magmatic regions are typically viewed as vertical systems, with magma coming in the bottom and either freezing in the crust to form plutons or erupting to form volcanic rocks.
Allen F. Glazner
doaj   +1 more source

Peroxodisulfate‐Enhanced Leaching of Deep‐Sea Manganese Crusts and Sulfides

open access: yesChemie Ingenieur Technik, EarlyView.
Ammonium peroxodisulfate enables efficient leaching of deep‐sea manganese crusts and massive sulfides while offering electrolytic recycling. High leaching yields for V, Mn, Co, Mo, Sn, and W, along with complete leaching of As and Sb, highlight its potential as a powerful and sustainable oxidant for marine resource processing.
Bastian Hansel   +5 more
wiley   +1 more source

Shallow Magmatic System of Arxan Volcano Revealed by Ambient Noise Tomography with Dense Array

open access: yesApplied Sciences
The Arxan Volcanic Field (AVF) is an active volcanic region in Northeast Asia, and its last eruption occurred approximately 2000 years ago. Its eruption mechanism remains unknown.
Lijuan Qu, You Tian, Cai Liu, Hongli Li
doaj   +1 more source

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