Results 61 to 70 of about 8,361 (213)

Geoarchaeological Perspectives on Stelae Production Throughout the Bronze Age: Provenance, Material Properties and Rock Selection at Zebros (Idanha‐a‐Nova, Portugal)

Geoarchaeology, Volume 40, Issue 6, November/December 2025.
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, Ralph Araque Gonzalez, Dirk Scheuvens, Pedro Baptista, Francisco Henriques   +4 more
wiley   +1 more source

Determine the Elemental Composition of Minerals From Complex Solid‐Solution Series by Raman Spectroscopy: Implications for Mars Exploration Missions

Journal of Raman Spectroscopy, Volume 56, Issue 11, Page 1404-1417, November 2025.
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, Jose Antonio Manrique, Marco Veneranda, Pilar Renedo, Paula Xiaozhen Vega, Iván Reyes‐Rodríguez, María Mayoral, Sergio Jiménez, Lidia Asenjo, Aurelio Sanz‐Arranz, Elena Charro Huerga, Jaime Delgado Iglesias, Olga Prieto‐Ballesteros, Andoni Moral, Emmanuel Alexis Lalla, Belen Barrios‐Areinamo, Fernando Rull, Guillermo Lopez‐Reyes   +17 more
wiley   +1 more source

Trace Metal Contamination and Health Risk Assessment in Traditional Egyptian Soft Cheeses: A Food Safety Perspective

Food Safety and Health, Volume 3, Issue 4, Page 693-712, October 2025.
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, Doha A. Abdelmeged, Shaima M. Hamdy, Warda M. A. Ebid   +3 more
wiley   +1 more source

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

Revista 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, Eduardo González-Partida, Victor A. Valencia   +2 more
doaj  

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

Sustainable 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, Konstantinos Kappis, Stylianos Tombros, George Avgouropoulos, Sotirios Kokkalas, Paraskevi Lampropoulou, Stavros Triantafyllidis, Haibin Li, Joan Papavasiliou   +8 more
doaj   +1 more source

Dzheltulak system of the Oktyabrsky ore-placer node of the Amur gold-bearing province

Известия высших учебных заведений: Геология и разведка
Background. Information on the Dzheltulak large placer system of the Amur gold-bearing province, which has produced 80 tons of gold, is presented. Aim. To determine the geological and structural position of the Dzheltulak placer system, one of the most ...
V. A. Stepanov, A. V. Melnikov
doaj   +1 more source

Impact Factors on Migration of Molybdenum(VI) from the Simulated Trade Effluent Using Membrane Chemical Reactor Combined with Carrier in the Mixed Renewal Solutions. [PDF]

Toxics, 2022
Pei L, Sun L.
europepmc   +1 more source

A Mina-Escola de Santa Luzia-PB: um laboratório didático para estudantes de Mineração/Geologia

Terrae Didatica, 2018
A Mina Escola representa um recurso didático localizada nas adjacências da cidade de Santa Luzia, Paraíba. Corresponde a um laboratório para estudos relacionados a mineração, em função dos seus componentes, tais como: mina subterrânea, escritório ...
Lauro Cézar Montefalco de Lira Santos, Iure Borges de Moura Aquino, Barthira Almeida Nunes   +2 more
doaj   +1 more source

RARE EARTH MINERALS IN ALKALINE AND SUBALKALINE ROCKS OF THE BALBUK COMPLEX (SOUTH URALS) [PDF]

Минералогия, 2016
Mineral composition of alkaline and subalkaline rocks of the Balbuk complex (South Urals) is characterized. The major REE minerals are monazite-(Ce), allanite-(Ce), and rhabdophane-(Ce).
E.P. Makagonov, V.A. Kotlyarov
doaj  

Origin and occurrence of gem-quality, skarn-hosted barite from Jebel Ouichane near Nador in Morocco. [PDF]

Sci Rep, 2021
Dumańska-Słowik M, Naglik B, Toboła T, Powolny T, Huber M, Milovska S, Dobosz N, Guzik K, Wesełucha-Birczyńska A.   +8 more
europepmc   +1 more source