Results 61 to 70 of about 1,691 (151)

Geochemical indicators for cobalt-rich skarn exploration: constraints from the Pusangguo granodiorite (Gangdese) on geochemistry, zircon U-Pb geochronology and Hf-Nd-Sr isotopes

Frontiers in Earth Science
The Pusangguo skarn-type copper-polymetallic deposit in the Gangdese metallogenic belt hosts economic cobalt mineralization. An integrated study of petrography, zircon U-Pb geochronology, whole-rock geochemistry, and Sr–Nd–Hf isotopes indicates the ore ...
Zhaxi Pubu, Qiong Ci, Fuzhi Gong, Nan Chao   +3 more
doaj   +1 more source

Evaluation of the Homogeneity of Geochemical Reference Materials by Wavelength‐Dispersive X‐Ray Fluorescence Spectrometry Using 0.1 g Fusion Samples

Journal of Chemistry, Volume 2026, Issue 1, 2026.
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, Qishen Chen, Yaxuan Liu, Yanfei Zhang, Qiang Li, Zhenqing Li, Kun Wang, Qi Yu, Munmun Bardhan   +8 more
wiley   +1 more source

Fe-Cu skarns deposits in the Santa Quiteria magmatic arc, Borborema Province, Brazil

, 2015
W-Mo skarns deposits in the Borborema Province have been known since the 40's, however, until this study there were no records of Fe-Cu skarns. In Ceará State, Brazil, the first occurrences of Fe-Cu skarns were identified recently in the Magmatic Arc of ...
Jair Araújo de Lira Júnior (6125087), Clovis Vaz Parente (6125078), Cesar Ulisses Vieira Veríssimo (6125081), Ticiano José Saraiva dos Santos (537035), Douglas Teixeira Martins (6125090), Nilson Francisquini Botelho (5834741), Claudinei Gouveia de Oliveira (6125084)   +6 more
core   +1 more source

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

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  

Rasgos generales de los skarns y mineralizaciones asociadas del Sistema Central español [PDF]

, 1985
[Resumen] La existencia en el Sistema Central Español de gran variedad de mineralizaciones ligadas a skarns permite discriminarlas en base al protalito, profundidad de emplazamiento y composición del granito asociado.Estas variables definen las ...
Tornos Arroyo, F., Casquet Martín, César   +1 more
core   +2 more sources

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

Mineral assemblages and conditions of origin of metamorphic skarns in the Bohemian Massif [PDF]

, 2011
ENGLISH SUMMARY MINERAL ASSEMBLAGES AND CONDITIONS OF ORIGIN OF METAMORPHIC SKARNS IN THE BOHEMIAN MASSIF Calcic-iron skarns are a characteristic rock type of regional metamorphic complexes wirkude. In the Bohemian Massif, characteristic enrichment in Ca,
Bubal, Jan
core  

Anomalously high uranium contents in tactites and reaction skarns of the Žulová Massif mantle [PDF]

, 2012
Tactites and reaction skarns composed mainly of grossular, vesuvianite, epidote, diopside, wollastonite and quartz occur in the Žulová Massif mantle. Contents of uranium and thorium were measured using a laboratory gamma-ray spectrometer in 155 samples ...
Zimák, Jiří
core