Results 41 to 50 of about 507 (134)
The Akatani Fe deposit in NE Japan has been regarded as a skarn deposit because iron‐oxide ores occur within marble‐hosted skarn near the Cretaceous Ninoujidake granite. U–Pb dating of fluorapatite in the skarn indicates that this skarn formed in the Late Cretaceous, contemporaneous with the granite.
Kotaro Seno +6 more
wiley +1 more source
This study characterizes CO2‐bearing fluid inclusions in quartz from the Phayaung Taung mesothermal gold deposit, central Myanmar, using Raman spectroscopy. The results provide constraints on fluid composition, CO2 density, and possible formation conditions, indicating the involvement of low‐salinity H2O–CO2 fluids during gold mineralization.
Naing Aung Khant +5 more
wiley +1 more source
Research Progress and Typical Cases of Deep Mines Backfill Technology in China
With the increasing depletion of shallow mineral resources and the growing demand for metals, deep mining has become a strategic focus for China. However, deep mining operations face a series of complex challenges, including high ground stress, elevated geothermal gradients, and severe rockburst hazards.
Shuai Li +5 more
wiley +1 more source
The northern part of the Sanandaj-Sirjan zone hosts important iron deposits formed during the Mesozoic magmatism. The Baba-Ali and Galali ore deposits occurred on the border of Hamedan, Kermanshah, and Kurdistan provinces.
Majid Shirmohammadi +5 more
doaj +1 more source
Good homogeneity is a critical guarantee for the accuracy of certified reference material values. X‐ray fluorescence spectrometry (XRF) is widely used for the homogeneity testing of geochemical reference materials due to its simple sample preparation and high analytical precision.
Hongkun Zhao +8 more
wiley +1 more source
ABSTRACT At Monte dos Zebros (Idanha‐a‐Nova, Central Portugal), the discovery of three stelae—two Iberian Late Bronze Age stelae and one fragment of an Early/Middle Bronze Age anthropomorphic stela—represents a rare case of rock art monuments from different chronologies coexisting in the same place within a broader archaeological landscape, which ...
Rafael Ferreiro Mählmann +4 more
wiley +1 more source
Dağbaşı skarn cevherleri Üst Kretase yaşlı Dağbaşı granitoyidi ile Liyas volkanitleri içindeki kireçtaşı blok ve merceklerinin granitoyide en yakın olduğu zonlar boyunca ekzoskarn tipte gelişmiştir.
Yılmaz DEMİR
doaj +1 more source
This study presents a hierarchical Raman‐based classification model for determining the elemental composition of garnets within complex solid‐solution systems. The workflow combines spectral preprocessing, dimensionality reduction, and two‐level classification: first distinguishing between pyralspite and ugrandite groups, and then classifying ...
Sofia Julve‐Gonzalez +17 more
wiley +1 more source
This study evaluates trace metal concentrations in traditional Egyptian soft cheeses and assesses associated health risks using chemometric and toxicological approaches. Findings confirm the safety of these cheeses, with all risk indices within acceptable limits, supporting the need for continued monitoring to ensure food quality and consumer ...
Hani S. Abdelmontaleb +3 more
wiley +1 more source
The Tuosibasitao Fe-Cu-Au mineral deposit mainly occurs in the contact zone between the diorite porphyrite and basaltic volcanic rock of Middle Devonian Beitashan Formation in the forms of massives, heterogeneous gobbets, veinlets, breccia and veinlet ...
LV Shu-jun +4 more
doaj

