Results 61 to 70 of about 898,195 (216)

Native Gold of the Porphyry Copper Mineralization in the Borov Dol Deposit (Republic of Macedonia) [PDF]

, 2008
Mineralogical study of gold in disseminated porphyry copper ores is complicated by its fine (often micrometer size) segregations and low contents micrometer size) segregations and low contents (O.n glt).
Stefanova, Violeta, Serafimovski, Todor, Volkov, A.   +2 more
core   +1 more source

The first discovery of a shocked, metasomatised CV3 chondrule‐fragment in a (Al,Cu)‐bearing micrometeorite

Meteoritics &Planetary Science, Volume 61, Issue 9, Page 2269-2283, September 2026.
Abstract We report the discovery of the second (Al,Cu)‐alloy–bearing micrometeorite, FB‐A2, recovered from Mount Gariglione (southern Italy), representing the sixth such occurrence worldwide. Although chondritic in nature, FB‐A2 differs markedly from previously described microspherules.
Giovanna Agrosì, Paola Manzari, Daniela Mele, Johan Villeneuve, Tiziano Catelani, Mattew J. Genge, Luca Bindi   +6 more
wiley   +1 more source

Determination of Composition of Pyrite in the Baishantang Copper Deposit by Laser Ablation-Inductively Coupled Plasma-Mass Spectrometry and Electron Microprobe

Yankuang ceshi, 2016
Determination of trace elements in analyzed mineral phase by Laser Ablation-Inductively Coupled Plasma-Mass Spectrometry (LA-ICP-MS) is a new in situ technique for mineral phase analyses. As an important mineral in porphyry copper deposits, the major and
YAN Qiao-juan, WEI Xiao-yan, YE Mei-fang, ZHAO Hui-bo, ZHOU Ning-chao   +4 more
doaj   +1 more source

Tracing Continental Basalt Sources and Mantle Processes Using Fe Stable Isotopes

Geochemistry, Geophysics, Geosystems, Volume 27, Issue 8, August 2026.
Abstract Iron (Fe) isotopes have emerged as powerful tracers of mantle source heterogeneity and melting processes, yet the mechanisms producing heavy Fe isotope signatures (high δ57Fe values) in intraplate basalts remain debated. Competing interpretations include partial melting of recycled pyroxenite domains versus carbonate‐induced oxidation of a ...
Yi‐Shan Cheng, Jian‐Qiang Liu, Li‐Hui Chen, Xun Yu, Gang Zeng, Xiao‐Jun Wang, Zhao‐Yang He, Jian Zhao, Frances M. Deegan, Valentin R. Troll, Hong‐Fu Zhang   +10 more
wiley   +1 more source

Some genetic aspects of the bor copper-gold deposit(Serbia) [PDF]

, 2001
The Bor Cu-Au deposit consists of two principal types of mineralization hosted by the Upper Cretaceous andesites: epithermal high sulphidation Cu-Au (massive sulphide cupriferous pyrite mineralization of re­placement type), and porphyry copper.
Kozelj, Dejan, Jelenkovic, Rade, Serafimovski, Todor   +2 more
core   +1 more source

Early–Late Carboniferous Tectonic Evolution of the Northern North China Craton (NE China): Constraints From Zircon Ages, Geochemistry, and Crustal Thickness Modeling

Geochemistry, Geophysics, Geosystems, Volume 27, Issue 8, August 2026.
Abstract The tectonic evolution of the northern margin of the North China Craton (NCC) remains controversial. In this study, we obtained zircon U–Pb ages, geochemical data, and Sr–Nd isotopic data for volcanic rocks, and detrital zircon ages for sedimentary rocks from the Yufutun, Tongqigou, and Benxi formations in central‐southern Jilin Province, NE ...
Yunfei Chang, Qingxiang Du, Huachun Gan, Xiaoli Shen, Zuozhen Han, Xiaoxue Hou, Huicong Zhang   +6 more
wiley   +1 more source

Overheated, Cu-bearing magmas in Zaldivar Porphyry Copper Deposit, Northern Chile: Geodinamic evidence

, 2002
The Zaldivar porphyry copper deposit, Northern Chile, consists of two major intrusions, the 290 Ma Zaldivar, and the more recent Miocene (38.7 Ma) Llamo porphyry.
Nikogosian, I.; id_orcid, Touret, J.L.R., Delgado, J., Morales, P., drs Campos, E.   +4 more
core   +1 more source

Exploration Targeting in the Shadan Porphyry Gold–Copper Deposit, Lut Block, Iran: Analysis of Spatial Distribution of Sheeted Veins and Lithogeochemical Data

, 2023
The Lut Block is a potential porphyry-style mineralized region in Iran including the well-explored Shadan porphyry gold-copper deposit, which has an extensive zone of gold- and copper-bearing stockwork-like sheeted veins.
Davood Raeisi, David R. Lentz, M. Santosh, Elham Hosseinzadehsabeti, Shahrouz Babazadeh, Saeid Hajsadeghi   +5 more
core   +1 more source

Gold-base metal mineralization of the Mikheevsky (Novonikolaevsky) porphyry copper ore cluster, South Urals [PDF]

Минералогия
The paper describes different types of base metal mineralization of the Mikheevsky (Novonikolaevsky) ore cluster (South Urals, Russia). At the Mikheevskoe porphyry copper deposit, goldbase metal mineralization occurs as subepithermal veins up to 30 cm ...
O.Yu. Plotinskaya, V.V. Khrebtievsky, E.V. Kovalchuk, M.M. Savostyanova   +3 more
doaj   +1 more source

Distinct Transcrustal Evolutions of Komatiitic Primitive Magma: Implications for the Compositional Dichotomy of Continental Flood Basalts

Geochemistry, Geophysics, Geosystems, Volume 27, Issue 8, August 2026.
Abstract The origin of the compositional dichotomy between high‐Ti and low‐Ti basalts in continental flood basalt provinces remains debated. Most existing studies attribute this dichotomy directly to variations in primitive magma composition to circumvent the complexities of significant evolutionary processes, such as multiphase fractional ...
Zongpeng Yang, Tong Hou, Roman Botcharnikov, Evangelos Moulas, Meng Wang, Stephan Buhre, Zhaochong Zhang   +6 more
wiley   +1 more source