|
|
|
|
|
José Cabello
Pág. 1 - 23
A review of gold and gold bearing base metals deposits in Chile, indicate the existence of at least six different type of ore deposits, most largely formed during the Cenozoic with predominance in the Miocene. Mesozoic deposits are common but less releva...
ver más
|
|
|
|
|
|
|
|
|
|
|
Vasiliy Sukhorukov, Valeriya Volkova, Peter Nevolko and Pavel Kozlov
Metamorphic processes play a key role in forming orogenic gold deposits. In this paper, we present new evidence that host schists of the two largest gold deposits of the Yenisey ridge (Russia) Olympiada and Eldorado underwent a single stage of metamorphi...
ver más
|
|
|
|
|
|
|
|
|
|
|
Daniel Marshall, Carol-Anne Nicol, Robert Greene, Rick Sawyer, Armond Stansell and Ross Easterbrook
Gold, present as electrum, in the Battle Gap, Ridge North-West, HW, and Price deposits at the Myra Falls mine, occurs in late veinlets cutting the earlier volcanogenic massive sulphide (VMS) lithologies. The ore mineral assemblage containing the electrum...
ver más
|
|
|
|
|
|
|
|
|
|
|
Gustavo A. Rodriguez,Francisco I. Jr. de Azevedo,Beatriz Coira,Colin Brodie
Pág. 47 - 66
In this presentation, we aim to synthesize the information obtained in a sector of the Puna Argentina and to establish some exploration guides for gold deposits hosted in Ordovician sedimentary rocks of the Rinconada Range (Jujuy province- Argentina). Th...
ver más
|
|
|
|
|
|
|
|
|
|
|
Nikolai Berdnikov, Victor Nevstruev, Pavel Kepezhinskas, Ivan Astapov and Natalia Konovalova
While gold partitioning into hydrothermal fluids responsible for the formation of porphyry and epithermal deposits is currently well understood, its behavior during the differentiation of metal-rich silicate melts is still subject of an intense scientifi...
ver más
|
|
|
|
|
|
|
|
|
|
|
Waldo Vivallo,Fernando Henriquez,Sergio Espinoza
Pág. 159 - 175
RESUMEN. Las menas de hierro de los distritos ferriferos Cerro Negro Norte y Cerro Iman, pertenecientes a la Franja Ferrifera Cretacica de la Cordillera de la Costa de Chile, se encuentran fuertemente enriquecidas en Au con respecto a las rocas volcanica...
ver más
|
|
|
|
|
|
|
|
|
|
|
Waldo Vivallo,Fernando Henriquez,Sergio Espinoza
Pág. 159 - 175
RESUMEN. Las menas de hierro de los distritos ferriferos Cerro Negro Norte y Cerro Iman, pertenecientes a la Franja Ferrifera Cretacica de la Cordillera de la Costa de Chile, se encuentran fuertemente enriquecidas en Au con respecto a las rocas volcanica...
ver más
|
|
|
|
|
|
|
|
|
|
|
Jose Perello,Jose Cabello
Pág. 73 - 92
RESUMEN. El analisis de 47 depositos tipo porfido cuprifero, considerados anomalos en oro (leyes ~0,3 ppm Au) revela que sus reservas son variables entre los 3 mil millones de toneladas con leyes de 0,8% Cu; 0,31 ppm Au y 5 millones de toneladas con leye...
ver más
|
|
|
|
|
|
|
|
|
|
|
Marcelo García,Jorge Correa,Víctor Maksaev,Brian Townley
Pág. 1 - 13
The seabed included in the Chilean Exclusive Economic Zone (EEZ) has proper conditions to originate and host different ore deposits, but its geological knowledge is scarce and scattered. The existent studies are very limited in terms of geochemical and m...
ver más
|
|
|
|
|
|
|
|
|
|
|
Didin Fatihudin,Sjamsul Hidajat,Iis Holisin
Pág. 541 - 546
This study aims to find a model to develop self-saving independence among traders and fishermen through financial literacy and investment portfolio. How many Traders-Fishermen know, allocate their income to various investment instruments, such as deposit...
ver más
|
|
|
|
|
|
|
|
|
|
|
Alvaro Puig,Sergio Diaz,Lucia Cuitino
Pág. 57 - 82
Resumen. Los yacimientos epitermales El Guanaco (Au, Cu), Cachinal de La Sierra (Ag) y El Soldado (Ag), ubicados entre 24°52'-25°06' y 69°32'W, estan geneticamente relacionados con un sistema de calderas anidadas del Paleoceno-Eoceno Inferior. Las rocas ...
ver más
|
|
|
|
|
|
|
|
|
|
|
Jieun Baek and Yosoon Choi
The design of a haul road for an open-pit mine can significantly affect the cost associated with hauling ore and waste to the surface. This study proposes a new method for haul road design in open-pit mines to support efficient truck haulage operations. ...
ver más
|
|
|
|
|
|
|
|
|
|
|
Lori Ana Bromberg, Jiaxin Xia, Ryan Rooney and Nikolay Dimitrov
The fabrication of a nanoporous gold (NPG)-based catalyst on a glassy carbon (GC) support results normally in large isolated and poorly adhering clusters that suffer considerable material loss upon durability testing. This work exploits thermochemical ox...
ver más
|
|
|
|
|
|
|
|
|
|
|
Frank Winde and Ewald Erasmus
Located downstream of goldfields of the Witwatersrand basin, the Gerhard Minnebron (GMB) Eye?as major water source for downstream community of some 300,000 people?may be impacted on by mining-related water pollution especially with uranium (U). Containin...
ver más
|
|
|
|
|
|
|
|
|
|
|
Constantino Mpodozis,Paula Cornejo,Suzanne M. Kay,Andrew Tittler
Pág. 273 - 313
RESUMEN. La Franja de Maricunga, de 200 km de largo, portadora de mineralizacion de metales preciosos, se extiende en el borde occidental del Altiplano de Copiapo (26-28°S) y representa el frente volcanico Oligoceno-Mioceno de la zona sur de los Andes Ce...
ver más
|
|
|
|
|
|
|
|
|
|
|
Constantino Mpodozis,Paula Cornejo,Suzanne M. Kay,Andrew Tittler
Pág. 273 - 313
RESUMEN. La Franja de Maricunga, de 200 km de largo, portadora de mineralizacion de metales preciosos, se extiende en el borde occidental del Altiplano de Copiapo (26-28°S) y representa el frente volcanico Oligoceno-Mioceno de la zona sur de los Andes Ce...
ver más
|
|
|
|
|
|
|
|
|
|
|
Ming Kang, Huanzhao Guo, Wende Zhu, Xianrong Luo and Jianwen Yang
The anionic and cationic species of elements from deeply buried deposits migrate to the near surface driven by various geological forces. The geoelectrochemical exploration method (GEM), derived from CHIM, consists of the application of an electric field...
ver más
|
|
|
|
|
|
|
|
|
|
|
Vanessa Cocal-Smith, Graham Hinchliffe and Michael G. Petterson
The geoheritage value in the Thames District, North Island, New Zealand, is notable for its over 50 epithermal gold deposits associated with the Coromandel Volcanic Zone, significant to the region?s geological, cultural, and mining heritage. This case st...
ver más
|
|
|
|
|
|
|
|
|
|
|
Olive L. Ponyalou, Michael G. Petterson and Joseph O. Espi
Feni is located at the southeastern end of the NW-trending Tabar?Lihir?Tanga?Feni (TLTF) volcanic island chain, in northeastern Papua New Guinea. This island chain is renowned for hosting alkaline volcanics, geothermal activity, copper?gold mineralizatio...
ver más
|
|
|
|
|
|
|
|
|
|
|
Abdallah Atef, Adel A. Surour, Ahmed A. Madani and Mokhles K. Azer
Since Antiquity, sustainable resources of gold and copper have been mined at two prominent prospects in the north Eastern Desert of Egypt, namely the south Gabel Um Monqul (SGUM) and Gabal Al Kharaza (GKZ). Mineralization is hosted by Neoproterozoic shie...
ver más
|
|
|
|
|
|