Yanshanian (Late Mesozoic) ore deposits in China – An introduction to the Special Issue

2017 ◽  
Vol 88 ◽  
pp. 481-490 ◽  
Author(s):  
Xu Deru ◽  
Chi Guoxiang ◽  
Zhang Yanhua ◽  
Zhang Zhaochong ◽  
Sun Weidong
Keyword(s):  
Ore Deposits ◽  
Special Issue ◽  
Late Mesozoic

scholarly journals Introduction to the special issue on the Flatreef PGE-Ni-Cu deposit, northern limb of the Bushveld Igneous Complex

2020 ◽  
Author(s):  
Wolfgang D. Maier ◽  
Marina Yudovskaya ◽  
Pedro Jugo
Keyword(s):  
Ore Deposits ◽  
Special Issue ◽  
Ore Formation ◽  
Igneous Complex ◽  
Northern Limb ◽  
Pge Mineralization ◽  
World Class ◽  
Bushveld Igneous Complex ◽  
Mine Development ◽  
Host Rocks

AbstractMore than 30 years ago, Cox and Singer (1986) suggested that magmatic platinum-group element (PGE)-Ni-Cu deposits are amongst the best understood of ore deposits, yet the origin of PGE mineralization in the Bushveld Igneous Complex (BIC) remains controversial after a century of study. In the northern limb of the BIC, the unravelling of ore formation proved particularly difficult due to relatively poor outcrop, which is typically affected by contamination of the intruding magmas with the host rocks and expressed in the form of abundant xenoliths, footwall rafts and disturbance of magmatic stratigraphy. In this thematic issue, we present contributions on the Flatreef, a recently discovered world-class PGE-Ni-Cu deposit constituting a downdip extension of the mineralized unit of the Platreef of the northern limb. Two deep shafts are currently being sunk, making the Flatreef one of the most significant new mine development on the Bushveld in several decades.

scholarly journals Editorial for Special Issue “Structural Control of Mineral Deposits: Theory and Reality”

Minerals ◽  
2019 ◽  
Vol 9 (3) ◽  
pp. 171 ◽  
Author(s):  
Alain Chauvet
Keyword(s):  
Structural Control ◽  
Ore Deposits ◽  
Mineral Deposits ◽  
Special Issue ◽  
Crucial Point ◽  
Economic Analyses ◽  
Selection Of

“Structural Control” remains a crucial point that is frequently absent in scientific and/or economic analyses of ore deposits, whatever their type and class, although a selection of references illustrates its importance [...]

A Special Issue on Archean Magmatism, Volcanism, and Ore Deposits: Part 2. Volcanogenic Massive Sulfide Deposits Preface,

2013 ◽  
Vol 109 (1) ◽  
pp. 1-9 ◽  
Author(s):  
P. Mercier-Langevin ◽  
H. L. Gibson ◽  
M. D. Hannington ◽  
J. Goutier ◽  
T. Monecke ◽  
...  
Keyword(s):  
Massive Sulfide ◽  
Ore Deposits ◽  
Special Issue ◽  
Volcanogenic Massive Sulfide ◽  
Sulfide Deposits ◽  
Massive Sulfide Deposits ◽  
Volcanogenic Massive Sulfide Deposits

A Special Issue on Archean Magmatism, Volcanism, and Ore Deposits: Part 1. Komatiite-Associated Ni-Cu-(PGE) Sulfide and Greenstone-Hosted Au Deposits: Preface(,)

2012 ◽  
Vol 107 (5) ◽  
pp. 745-753 ◽  
Author(s):  
P. Mercier-Langevin ◽  
M. G. Houle ◽  
B. Dube ◽  
T. Monecke ◽  
M. D. Hannington ◽  
...  
Keyword(s):  
Ore Deposits ◽  
Special Issue

2D crust-upper mantle velocity structure along a seismic section in Nanling, South China

2020 ◽  
Author(s):  
Jia-ji xi ◽  
Guo-ming jiang ◽  
Gui-bin zhang ◽  
Xiao-long he
Keyword(s):  
Upper Mantle ◽  
Velocity Structure ◽  
Ore Deposits ◽  
Low Velocity ◽  
Seismic Section ◽  
Late Mesozoic ◽  
Velocity Anomaly ◽  
Metallogenic Belt ◽  
Velocity Anomalies ◽  
Mantle Velocity

<p>    There exists an important polymetallic ore belt in Nanling of the southeastern China. Previous studies suggest that the mineralization of Nanling is probably related to the bottom intrusion of magmatic rocks in the late Mesozoic. In this study, a natural seismic section was installed by using 81 portable stations with an interval of 5 km from July 2017 to August 2019, which runs across the Nanling belt in the south of Fujian and Jiangxi provinces. As a result, we have picked up 3,818 relative residual data from 215 teleseismic events with magnitude greater than 5.5. And we have applied the teleseismic full-waveform tomography and the teleseismic travel-time tomography to study the crust and the mantle velocity structure beneath the Nanling metallogenic belt, respectively. Our preliminary results show that: (1) a clear low-velocity anomaly exists in the crust beneath the Zhenghe-Dapu fault and its east side, which might be related to the rich ore deposits in Nanling; (2) some high-velocity anomalies in the uppermost mantle beneath the Wuyi metallogenic belt may be relevant to the igneous rock cooling and the lithospheric thickening; (3) there are obvious low-velocity anomalies at the upper mantle beneath the Wuyi and Nanling metallogenic belts, which are speculated to be hot materials from asthenosphere upwelling into the bottom of the lithosphere. Our results provide a new insight for investigating the deep structures and deep dynamic processes of Nanling tectonic belt.</p>

A Special Issue Dedicated to Geometallurgy: Preface

2019 ◽  
Vol 114 (8) ◽  
pp. 1473-1479
Author(s):  
Julie Hunt ◽  
Ron Berry ◽  
Megan Becker ◽  
Regina Baumgartner
Keyword(s):  
Ore Deposits ◽  
Behavior Prediction ◽  
Special Issue ◽  
Mining Operations ◽  
Future Directions ◽  
Planning And Scheduling ◽  
The Past ◽  
Interdisciplinary Field ◽  
Introductory Paper ◽  
Impact Of Mining

AbstractGeometallurgy is an interdisciplinary field aimed at describing potential ore deposits in terms that mine planners and economists can use to design and run profitable mining operations. The major geologic contribution to the field is defining the spatial variability of potential and active mining resources so that planning and scheduling can accurately predict the economic performance and environmental impact of mining in time to respond efficiently to variations in ore type. This information is needed at the feasibility stage and throughout the mine life. We review the available literature on how geologists have contributed to these predictions in the past. There have been substantial advances in predicting comminution behavior. Prediction of recovery and environmental impacts are less advanced. This introductory paper provides a brief review of geometallurgy and a synopsis of the papers in the Special Issue, along with suggestions on future directions.

scholarly journals Introduction to the Special Issue “Role of Magmatic Activity in the Generation of Ore Deposits”

Minerals ◽  
2020 ◽  
Vol 10 (1) ◽  
pp. 57
Author(s):  
Charles R. Stern ◽  
M. Alexandra Skewes
Keyword(s):  
Ore Deposits ◽  
Magmatic Activity ◽  
Special Issue

This Special Issue presents eight original contributions concerning ore deposits in China, Russia, and Chile [...]

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