Results 21 to 30 of about 6,789 (230)
A black shale protolith for gold-tellurium mineralisation in the Dalradian Supergroup (Neoproterozoic) of Britain and Ireland [PDF]
, 2017 The Dalradian Supergroup of Britain and Ireland is mineralised by gold-tellurium vein deposits. The host succession includes carbonaceous, pyritic shales (pelites) which were a source of trace elements, including gold and tellurium.
Armstrong, J. +5 more
core +1 more source
, 2014 This research was funded through Natural Environment Research Council (grant NE/J021822/1) and the APC was paid through the RCUK OA block grant.Earth's middle age, extending from 1.7 to 0.75 Ga, was characterized by environmental, evolutionary, and ...
Cawood, Peter Anthony +1 more
core +1 more source
Temporal relations between mineral deposits and global tectonic cycles [PDF]
, 2013 Natural Environment Research Council (grant NE/J021822/1) supported this research.Mineral deposits are heterogeneously distributed in both space and time, with variations reflecting tectonic setting, evolving environmental conditions, as in the ...
Cawood, Peter Anthony +1 more
core +2 more sources
Mesozoic orogenic gold deposits in Mexico
Ore Geology Reviews, 2017 Abstract Although orogenic gold deposits in Mexico were mostly formed during the Cenozoic, they started forming during the Late Cretaceous, or perhaps even earlier. Mylonitic zones in the Oaxacan metamorphic complex span either Permo-Triassic or Triassic-Jurassic ages, but none of these have been formally associated with the existing orogenic gold ...
Aldo Izaguirre +2 more
openaire +1 more source
Anomalous supply of bioessential molybdenum in mid-Proterozoic surface environments [PDF]
, 2016 We are grateful to A. Sandison and W. Thayalon for skilled technical support, and Mike Porter and an anonymous reviewer, who helped to clarify the manuscript.Peer ...
Lindgren, Paula, Parnell, John
core +1 more source
JGEET: Journal of Geoscience, Engineering, Environment and Technology, 2017 Recently, in Indonesia gold exploration activities are not only focused along volcanic-magmatic belts, but also starting to shift along metamorphic and sedimentary terrains.
Hasria Hasria +2 more
doaj +1 more source
AIMS Geosciences, 2017 The Central gold belt of peninsular Malaysia comprises a number of gold deposits located in the east of the N-S striking Bentong-Raub Suture Zone. The Tersang gold deposit is a mesothermal, orogenic gold deposit, which is hosted in sandstone, shale ...
Charles Makoundi, Khin Zaw, R.R. Large
doaj +1 more source
Journal of Economic Geology, 2021 Introduction Gold deposits formed during mountain-building processes in Phanerozoic terranes that formed in metamorphic environment have a great dispensation in the world (Goldfarb et al., 2001).
Monire Sakhdari +4 more
doaj +1 more source
Ore Geology Reviews, 2021 Abstract The Pangjiahe deposit is an orogenic gold deposit located on the northwestern margin of the Fengtai Basin and has proven reserves of 38 t Au at an average grade of 6.3 g/t. Phyllite is widely distributed in the mining area with Triassic granite porphyry and diabase dykes intruded in faults crosscutting it.
Jian Ma +8 more
openaire +1 more source
Gold in Devono-Carboniferous red beds of northern Britain [PDF]
, 2015 We are grateful to D. Craw and an anonymous reviewer for comments that helped to clarify the paper.
Bellis, David +3 more
core +1 more source