Zobrazeno 1 - 10
of 282
pro vyhledávání: '"ore minerals"'
Publikováno v:
Minerals, Vol 14, Iss 9, p 935 (2024)
A new occurrence of the Mn-Ba ore mineral, romanechite, has been discovered in a small paleo-doline of the Apulian karst on Mesozoic carbonate rock successions, characterized by reddish incrustations and nodules made essentially by Fe-bearing calcite
Externí odkaz:
https://doaj.org/article/5ff21af17c2d47a5a2c44bb7fd067ea3
Autor:
Nikolaev Yu. N., Balykova I. V., Kuzin S. V., Baksheev I. A., Apletalin A. V., Prokofiev V. Yu., Vlasov E. A., Kalko I. A., Kosyatov V. V.
Publikováno v:
Руды и металлы, Iss 3, Pp 87-105 (2023)
Gold deposits associated with granitoid intrusions have long been known. Recently, a class of deposits was identified among them, called intrusion-related granite systems, IRGS (gold-rare metal formation). The standards of the geological prospecting
Externí odkaz:
https://doaj.org/article/9d8446b7f5924f1788262f472199271e
Publikováno v:
Minerals, Vol 14, Iss 5, p 493 (2024)
For the effective comminution and subsequent enrichment of mineral ores, comprehensive knowledge of their mineralogical and physical properties is required. Using an integrated methodology, this study evaluated samples of polymetallic Ni-Cu ore from
Externí odkaz:
https://doaj.org/article/89d8002096f845d3be44982f684d8daf
Publikováno v:
Open Geosciences, Vol 14, Iss 1, Pp 1250-1267 (2022)
Discovery of the Siah Diq porphyry (Cu–Au) prospect in the foothill of Dam Koh volcano is a recent exploration success story of mineralization buried under a 46 m alluvium cover in an exploratory mature Chagai belt. Acquisition of geophysical data
Externí odkaz:
https://doaj.org/article/3ed6917639a3471cafd9d0102ab0b50e
Akademický článek
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Publikováno v:
RUDN Journal of Engineering Research, Vol 22, Iss 2, Pp 225-233 (2021)
The conditions of the formation of nonmetallic and ore minerals in limnogenic structures are considered. It has been established that lakes are natural enriches of a wide range of useful components - silicate, carbonate, water-soluble, ore, organomin
Externí odkaz:
https://doaj.org/article/0d60f3e94c294fbbb83bb33ce647bcb7
Autor:
M. Curzi, A. Caracausi, F. Rossetti, A. Rabiee, A. Billi, E. Carminati, L. Aldega, S. M. Bernasconi, C. Boschi, K. Drivenes, A. L. Rizzo, B. E. Sørensen
Publikováno v:
Geochemistry, Geophysics, Geosystems, Vol 23, Iss 10, Pp n/a-n/a (2022)
Abstract Post‐orogenic back‐arc magmatism is accompanied by hydrothermal ore deposits and mineralizations derived from mantle and crustal sources. We investigate Zannone Island (ZI), back‐arc Tyrrhenian basin, Italy, to define the source(s) of
Externí odkaz:
https://doaj.org/article/10a569ea06de4deab717b8f29ab045c4
Publikováno v:
Estonian Journal of Earth Sciences, Vol 70, Iss 2, Pp 71-93 (2021)
The Jõhvi magnetite quartzites (MagQ) occur as subvertical beds with a complicated structural outline in biotite-garnet-cordierite and pyroxene gneisses which in places also contain high concentrations of iron. Drill core study shows that the comp
Externí odkaz:
https://doaj.org/article/9cb7fb2c68704252b75d090ddca34271
Autor:
Virgilio Vecchio, Maurizio Cannatà, Edoardo Proverbio, Elpida Piperopoulos, Lorenzo Torrisi, Letteria Silipigni
Publikováno v:
Quaternary, Vol 6, Iss 1, p 18 (2023)
With the name ‘Temesa’ (Latin Tempsa), the ancients identified a settlement located along the Tyrrhenian coast of Calabria, cited by sources as an international metal exchange emporium. The town is mentioned by Homer as being famous in the ancien
Externí odkaz:
https://doaj.org/article/73a5d79ef0cf4750b3fd76775b825b52
Akademický článek
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