Results 11 to 20 of about 314,654 (179)

Lithospheric Architecture and Mantle Metasomatism Linked to Iron Oxide Cu‐Au Ore Formation: Multidisciplinary Evidence from the Olympic Dam Region, South Australia

Geochemistry, Geophysics, Geosystems, 2018
The role of lithospheric architecture and the mantle in the genesis of iron oxide copper‐gold (IOCG) deposits is controversial. Using the example of the Precambrian Gawler Craton (South Australia), which hosts the giant Olympic Dam IOCG deposit, we ...
R. G. Skirrow, S. E. van derWielen, D. C. Champion, K. Czarnota, S. Thiel   +4 more
doaj   +2 more sources

Styles of mineralization in the Nautanen IOCG deposit

, 2020
Nautanen is an IOCG (Iron Oxide Copper Gold) deposit located in northern Sweden, 10 km north-east of the town Gällivare in the county of Norrbotten. It was mined for copper for seven years in the early 1900´s and is presently explored by Boliden Mineral AB. The deposit sits within a package of shoshonitic andesites of the Porphyrite group.
Edblom, Nils
core   +4 more sources

The Cristalino IOCG deposit: an example of multi-stage events of hydrothermal alteration and copper mineralization

Brazilian Journal of Geology, 2019
The Cristalino deposit is located 40 km east of Sossego mine, Carajás. The orebody lies along a NW-SE-striking shear zone and is mainly hosted by the Neoarchean bi-modal volcanics of the Grão Pará Group.
Gustavo Souza Craveiro, Roberto Perez Xavier, Raimundo Netuno Nobre Villas   +2 more
doaj   +2 more sources

Chemical changes during endoskarn and porphyry‐style alteration and Cu—Fe exoskarn mineralization in the Tonglushan system, eastern China

Resource Geology, Volume 73, Issue 1, January‐December 2023., 2023
Endoskarn formation involved the migration of Ca into the quartz monzodiorites (QMD) from the exoskarnification of marble xenoliths and wall rocks, addition of Fe and Mn by magmatic‐hydrothermal fluids emanating from the interior of the QMD, and removal of alkali elements due to the replacement of feldspars and mica by prograde skarn minerals ...
Fei Zhang, Ben J. Williamson, Clemens V. Ullmann, Hannah S. R. Hughes   +3 more
wiley   +1 more source

Multi‐Stage Evolution of the South Australian Craton: Petrological Constraints on the Architecture, Lithology, and Geochemistry of the Lithospheric Mantle

Geochemistry, Geophysics, Geosystems, Volume 23, Issue 11, November 2022., 2022
Abstract To improve the understanding of the formation and evolution of the sub‐continental lithospheric mantle (SCLM) underlying the South Australian Craton we have conducted a detailed petrological study on >3,000 mantle xenocrysts from 13 kimberlites emplaced across the craton.
Z. J. Sudholz, G. M. Yaxley, A. L. Jaques, S. A. Cooper, K. Czarnota, W. R. Taylor, J. Chen, B. M. Knowles   +7 more
wiley   +1 more source

Deposit insurance systems and bank risk [PDF]

, 2009
The link from deposit insurance to bank risk taking has been widely analysed, but has been the subject of relatively little empirical work. This work contributes to the existing literature by exploring microeconomic aspects of the deposit insurance–bank
Davis, EP, Obasi, U
core   +6 more sources

Microbial Sulfate Reduction (MSR) as a Nature‐Based Solution (NBS) to Mine Drainage: Contrasting Spatiotemporal Conditions in Northern Europe

Water Resources Research, Volume 58, Issue 4, April 2022., 2022
Abstract An emerging solution in mine waste remediation is the use of biological processes, such as microbial sulfate reduction (MSR), to immobilize metals, reducing their bioavailability and buffering the pH of acid mine drainage. Apart from laboratory tests and local observations of natural MSR in, for example, single wetlands, little is known about ...
Sandra Fischer, Carl‐Magnus Mörth, Gunhild Rosqvist, Sergey R. Chalov, Vasiliy Efimov, Jerker Jarsjö   +5 more
wiley   +1 more source

The Resource‐Energy Nexus as a Key Factor for Circular Economy

Chemie Ingenieur Technik, Volume 93, Issue 11, Page 1707-1716, November 2021., 2021
Are we really running out of raw materials? Is that why we need to recycle materials and “close the loop”? This article provides an overview of the complex discussion. It emphasizes the importance of energy and material concentrations and argues for tying Circular Economy more closely to climate protection goals.
Mario Schmidt
wiley   +1 more source

2.5D geophysical model of the Gällivare mining area: An integrated study to model the top 4 km of the subsurface and guide for future exploration activities

Geophysical Prospecting, Volume 69, Issue 4, Page 821-841, May 2021., 2021
ABSTRACT Potential field and Slingram data alongside rock physical properties, drill‐core information and results from geological field mapping were used to investigate the geometry of the geological structures in the Gällivare area in regional scale. The main purpose of this study was to delineate the vertical and lateral extension of the Malmberget ...
Saman Tavakoli, Zmar Sarlus, Ida Kronsell, Tobias E. Bauer   +3 more
wiley   +1 more source

Multidisciplinary Modeling of Mantle Lithosphere Structure Within the Superior Craton, North America

Geochemistry, Geophysics, Geosystems, Volume 22, Issue 4, April 2021., 2021
Abstract New 3D multi‐azimuthal receiver function analysis identified four regional seismic discontinuities dipping at 7–13° within the mantle of the Superior craton of North America; most are discordant to known major upper crustal structures. Widely observed crustal‐scale structures with near‐vertical axial planes striking east‐west indicate that the
David B. Snyder, Geneviève Savard, Bruce A. Kjarsgaard, Aeron Vaillancourt, Phillips C. Thurston, John A. Ayer, Eric Roots   +6 more
wiley   +1 more source