Results 21 to 30 of about 8,388 (230)
TOURMALINE FROM LATE QUARTZ VEINS OF THE MURTYKTY GOLD DEPOSIT, REPUBLIC OF BASHKORTOSTAN [PDF]
Минералогия, 2020 Tourmaline, an intermediate member of the oxyschorl–oxydravite–oxymagnesio-foitite-bosiite series with a predominance of the oxy-dravite-bosiite end-member, was studied from late calcitequartz veins in the eastern zone of the Murtykty gold deposit ...
M.A. Rassomakhin +3 more
doaj +1 more source
Tellurium, selenium and cobalt enrichment in Neoproterozoic black shales, Gwna Group, UK : Deep marine trace element enrichment during the Second Great Oxygenation Event [PDF]
, 2018 We are grateful to John Still for his skilled technical support and the ACEMAC facility at the University of Aberdeen. Research funded by NERC grant NE/M010953/1 and NERC facility grant IP-1631-0516. AJB is funded by NERC support of the Isotope Community
Armstrong, Joseph +5 more
core +2 more sources
Metasomatized lithospheric mantle for Mesozoic giant gold deposits in the North China craton [PDF]
, 2020 The origin of giant lode gold deposits of Mesozoic age in the North China craton (NCC) is enigmatic because high-grade metamorphic ancient crust would be highly depleted in gold.
Becker, Harry +9 more
core +1 more source
Frontiers in Earth Science, 2021 The Mergui Belt of Myanmar is endowed with several important orogenic gold deposits, which have economic significance and exploration potential. The present research is focused on two gold districts, Modi Taung-Nankwe and Kyaikhto in the Mergui Belt ...
Myo Kyaw Hlaing +6 more
doaj +1 more source
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
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
Gold Fineness in the Jiangnan Orogenic Belt of South China: Correlations with Geological Characteristics and Fluid Conditions [PDF]
LithosphereA large number of Au deposits in the Jiangnan Orogenic Belt (JOB) are characterized by producing the bonanza-style gold with extremely high gold fineness (GF) in orogenic Au deposits and intrusion-related Au deposits.
Yi Liang +5 more
doaj +1 more source
Geosciences, 2021 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 ...
Vasiliy Sukhorukov +3 more
doaj +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
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