Results 51 to 60 of about 10,830 (246)

Field investigation of grout propagation within a caving mass under flowing water conditions in a metal mine

open access: yesDeep Underground Science and Engineering, Volume 4, Issue 2, Page 222-240, June 2025.
This study investigated the characteristics of two‐liquid slurry propagation filling of underground concealed spaces under flowing water conditions in metal mines using on‐site engineering tests. We proposed four different grout stratigraphic classifications, investigated four main factors affecting grout propagation, and summarized five different ...
Baofu Wu   +5 more
wiley   +1 more source

G.O.Joe: A New Non‐Commercial Software Tool for the Processing of LA‐ICP‐MS Trace Element Data

open access: yesGeostandards and Geoanalytical Research, Volume 49, Issue 2, Page 281-294, June 2025.
Key points G.O. Joe is developed to calculate trace element mass fractions including interference corrections. It is a freely accessible and platform‐independent web application to facilitate immediate data evaluation. Key feature is a simple, time‐efficient and flexible workflow to significantly improve data quality in various trace element studies ...
Florian Altenberger   +4 more
wiley   +1 more source

Phase Equilibria Analysis for Metacarbonate With Applications to Zoned Calc‐Silicate Aureoles

open access: yesJournal of Metamorphic Geology, Volume 43, Issue 5, Page 445-465, June 2025.
ABSTRACT Carbonate rocks react with infiltrating hydrothermal fluids to produce zoned calcsilicate assemblages in contact aureoles. Petrogenetic grids provide valuable insights into phase relations, metamorphic temperature (T) and the fluid composition (X) of the metacarbonate systems, as well as semi‐quantification of the prograde decarbonation at ...
Zhenhao Zhou, Xu Chu
wiley   +1 more source

Timing of Dike and Sill Emplacement in the Inner Aureole of the Alta Stock, Utah Determined by Zircon and Monazite Petrochronology

open access: yesGeochemistry, Geophysics, Geosystems, Volume 26, Issue 5, May 2025.
Abstract Detailed geochronology from two compositionally distinct generations of dikes and sills intruded into the Alta metamorphic aureole, north‐central Utah, complement previous geochronologic studies from the Alta stock, providing information on the timing of magmatism and the nature of emplacement.
C. J. Beno   +5 more
wiley   +1 more source

Mining wastes as CO oxidation mesoporous catalysts from the Fe-skarns of Serifos Island, Cyclades, Greece

open access: yesSustainable Chemistry for the Environment
The Fe-skarns from the Greek Island of Serifos in Cyclades has been utilized only for the exploitation of magnetite ores, while significantly vast amounts of red and yellow hematite ores remained unexploited as mining wastes.
Maria Mpiliou   +8 more
doaj   +1 more source

Identification of Multiple Thermal Events in High‐Grade Metacarbonate Rocks Using Carbon Isotope Thermometry: An Example From the Sør Rondane Mountains, East Antarctica

open access: yesGeological Journal, Volume 60, Issue 2, Page 455-483, February 2025.
Carbon isotope thermometry in metacarbonate rocks from the Sør Rondane Mountains, East Antarctica revealed multiple thermal events. ABSTRACT Nine metacarbonate layers from the regionally metamorphosed terrane of the Sør Rondane Mountains in the Eastern Dronning Maud Land in East Antarctica were examined in detail for constraining the thermal events ...
M. Satish‐Kumar   +4 more
wiley   +1 more source

Late Cretaceous adakitic magmatism in east-central Sonora, Mexico, and its relation to Cu-Zn-Ni-Co skarns

open access: yesRevista Mexicana de Ciencias Geológicas, 2014
La orogenia del Cretácico Tardío-Terciario temprano o Laramide (90–40 Ma) en el noroeste de México produjo un importante magmatismo calcialcalino, acompañado por diversos yacimientos asociados de tipo pórfido cuprífero y skarn.
Efrén Pérez-Segura   +2 more
doaj  

Origin of Ultrapotassic, Ultracalcic, Ultrabasic SiO2‐Undersaturated Magmas: The Case Study of the Pleistocene Cupaello Kamafugite Monogenetic Volcano, Central Italy

open access: yesGeochemistry, Geophysics, Geosystems, Volume 26, Issue 1, January 2025.
Abstract The Pleistocene (∼0.6 Ma) Cupaello monogenetic volcano, cropping out in central Italy, belongs to the Intra Apennine Province (IAP). It is represented by a single lava flow with kamafugitic composition, associated with a volumetrically limited pyroclastic deposit and a phosphate‐rich layer close to the small vent.
Michele Lustrino   +4 more
wiley   +1 more source

Broadband seismic data acquisition and processing of iron oxide deposits in Blötberget, Sweden

open access: yesGeophysical Prospecting, Volume 73, Issue 1, Page 80-95, January 2025.
Abstract In June 2022, an innovative seismic survey was conducted in Blötberget, central Sweden, to evaluate the effectiveness of employing both a broadband seismic source and broadband receivers for mineral exploration in a challenging hardrock setting. The Blötberget mine hosts high‐quality iron oxides, predominantly magnetite and hematite, sometimes
Lea Gyger   +8 more
wiley   +1 more source

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