| | Journal (article/letter/editorial) | sources of gold mineralization in the Marmato mining district, NW Colombia: A Miocene–Pliocene epizonal gold...Geológico y Minero, Diagonal 53, no 34-53, Bogota, Colombia Received 4 May 2005; accepted 10 March 2007 Available...in the Marmato mining district, within the Calima Terrain of the Setentrional Andes, Colombia. Regional...Combia Formation (9 to 6 Ma). The subvolcanic Marmato stock hosts mesothermal and epithermal low-sulfidation...the form of distensional veins, stockwork, and quartz veinlets within brecciated zones. Ore minerals | | Naranjo, Andrés, Horner, Johannes, Jahoda, Rudolf, Diamond, Larryn W., Castro, Adriana, Uribe, Aura, Perez, Carolina, Paz, Hermel, Mejia, Carlos, Weil, Jonas (2018) La Colosa Au Porphyry Deposit, Colombia: Mineralization Styles, Structural Controls, and Age Constraints. Economic Geology, 113 (3) 553-578 doi:10.5382/econgeo.2018.4562 | Journal (article/letter/editorial) | 113 May No. 3 La Colosa Au Porphyry Deposit, Colombia: Mineralization Styles, Structural Controls, and...AngloGold Ashanti Colombia, Carrera 19 Sur 162-70, Ibagué, Tolima 050026, Colombia 2 iC 3 Institute...the eastern flank of the Central Cordillera of Colombia, within the Middle Cauca metallogenic belt. The...intrusion breccias, whereas the late stage consists of quartz diorite and tonalite porphyries. The intrusions...gold-precipitating event formed sheeted veinlets of drusy quartz and pyrite with centimeter-wide halos of albite-sericite-pyrite | | Lesage, G., Richards, J. P., Muehlenbachs, K., Spell, T. L. (2013) Geochronology, Geochemistry, and Fluid Characterization of the Late Miocene Buritica Gold Deposit, Antioquia Department, Colombia. Economic Geology, 108 (5) 1067-1097 doi:10.2113/econgeo.108.5.1067 | Journal (article/letter/editorial) | Miocene Buriticá Gold Deposit, Antioquia Department, Colombia* GUILLAUME LESAGE,1 JEREMY P. RICHARDS,1...L. SPELL2 1 University 2 Nevada of Alberta, Department of Earth & Atmospheric Sciences, University of...gold deposit located 75 km north of Medellín, Colombia. It is hosted by the late Miocene Buriticá andesite...the eastern flank of the Western Cordillera of Colombia at 6°42.3'N 75°54.3'W (roughly 75 km north of...of the city of Medellín, Antioquia Department). The deposit consists of a structurally controlled epithermal | | | Journal (article/letter/editorial) | Academy of Sciences, Beijing 100049, P.R. China Department of Earth and Environmental Sciences, University...at: No. 19, Beitucheng Western Road, Chaoyang District, 100029 Beijing, P.R. China. E-mail address:...such as deposition of bladed calcite, colloform quartz, and adularia, as well as the generation of steam-heated...minerals, quartz – sulfate (e.g., barite) as main gangue minerals (carbonate absent), and quartz – alunite...Lithocap: blankets of alunite, kaolinite, and vuggy quartz formed from acid leaching of condensation of a | | | Journal (article/letter/editorial) | involved in large-scale gold mineralization, Jiaodong district, China: constraints provided by the He-Ar and...cassiterite and wolframite from tin and tungsten quartz veins in Portugal—A.M.R. Neiva Supergene sulphides...Zn-Pb-Cu massive sulphide deposits of the Bathurst mining camp, New Brunswick, Canada. I. Comparisons with...Zn–Pb–Cu massive sulphide deposits of the Bathurst mining camp, New Brunswick, Canada. II. Ocean anoxia during...Mio-Pliocene sediments of the Tamra iron mine (Nefza mining district, Tunisia): Mixed influence of pedogenesis and | | Jaramillo, J.S., Cardona, A., Monsalve, G., Valencia, V., León, S. (2019) Petrogenesis of the late Miocene Combia volcanic complex, northwestern Colombian Andes: Tectonic implication of short term and compositionally heterogeneous arc magmatism. Lithos, 330. 194-210 doi:10.1016/j.lithos.2019.02.017 | Journal (article/letter/editorial) | Minerales, Universidad Nacional de Colombia, Medellín, IP Colombia. 2 CR Grupo de Investigación en...Geofísica (EGEO), Universidad Nacional de Colombia, Medellín, Colombia. 3 US Departamento de Procesos y Energía...Universidad Nacional de Colombia, Medellín, AN Colombia. 4 Universidad Nacional de Colombia, Departamento de...de Geociencias y Medio Ambiente, M Medellín, Colombia. 5 ED School of Earth and Environmental Science...Geociencias, Universidad Nacional de Colombia, Bogotá, Colombia. 7 PT Smithsonian Tropical Research | | | Book | Consulting Geologist Department of Geology University EAFIT Medellín, Colombia Robert Peter Shaw Consulting...Tectonics Colombia 1938–1946 “Unique – a dream” Highlights • Key geological realms in Colombia were the...The Ganssers had four daughters (Ursula, born in Colombia, 1941; Manuela, 1949; Francesca, 1956; and Rosanna...and two sons (Mario, born in Colombia, 1943; Luca, also born in Colombia, 1945). In 2000, Gansser’s dear...the Escuela de Minas (Medellín, 1887) and the Department of Geology and Geophysics at the Unversidad Nacional | | Wang, Changming, Zhang, Da, Wu, Ganguo, Santosh, M., Zhang, Jing, Xu, Yigan, Zhang, Yaoyao (2014) Geological and isotopic evidence for magmatic-hydrothermal origin of the Ag–Pb–Zn deposits in the Lengshuikeng District, east-central China. Mineralium Deposita, 49 (6) 733-749 doi:10.1007/s00126-014-0521-8 | Journal (article/letter/editorial) | origin of the Ag–Pb–Zn deposits in the Lengshuikeng District, east-central China Changming Wang & Da Zhang...Heidelberg 2014 Abstract The Lengshuikeng ore district in east-central China has an ore reserve of ∼43...characteristics, the mineralization in the Lengshuikeng ore district can be divided into porphyryhosted and stratabound...silver–galena–sphalerite, and late-stage pyrite–quartz– calcite. The δ34S values of pyrite, sphalerite...employing LA–ICP–MS analyses of zircons from a quartz syenite porphyry yielded a weighted mean 206Pb/238U |
|