Results 101 to 110 of about 2,041,224 (354)

Discriminating fluid source regions in orogenic gold deposits using B-isotopes

open access: yes, 2016
The genesis of orogenic gold deposits is commonly linked to hydrothermal ore fluids derived from metamorphic devolatilization reactions. However, there is considerable debate as to the ultimate source of these fluids and the metals they transport ...
J. Lambert-Smith   +3 more
semanticscholar   +1 more source

Atomic Size Misfit for Electrocatalytic Small Molecule Activation

open access: yesAdvanced Functional Materials, EarlyView.
This review explores the application and mechanisms of atomic size misfit in catalysis for small molecule activation, focusing on how structural defects and electronic properties can effectively lower the energy barriers of chemical bonds in molecules like H2O, CO2, and N2.
Ping Hong   +3 more
wiley   +1 more source

Metallogenic characteristics and mineralization of supergiant gold deposits (223 t) in the northeastern margin of the Jiaolai Basin, Shandong Province: A review

open access: yesChina Geology
: Since the first discovery of gold deposits on the northeastern margin of the Jiaolai Basin in Shandong Province at the end of the 20th century, seven medium-sized to large/super-large gold deposits have been identified in this region, with cumulative ...
Jun-wei Bo   +5 more
doaj   +1 more source

Formation of giant iron oxide-copper-gold deposits by superimposed episodic hydrothermal pulses. [PDF]

open access: yesSci Rep, 2023
Del Real I   +7 more
europepmc   +1 more source

Trace elements in fluid inclusions of sediment-hosted gold deposits indicate a magmatic-hydrothermal origin of the Carlin ore trend

open access: yes, 2016
The Carlin-type deposits in Nevada (western USA) constitute the world9s second-largest gold ore province. These structurally and stratigraphically controlled, sediment-hosted ore bodies are characterized by carbonate dissolution attending hydrothermal ...
S. Large   +5 more
semanticscholar   +1 more source

The case for gold panning in Scotland [PDF]

open access: yes, 2014
In March 2014, the Hunterian at the University of Glasgow will hold an exhibition of gold in Scotland. Amongst the treasures on display will be the King's Gold Cup from the Leith races of 1751, Queen Victoria's gold collar of the Order of the Thistle ...
Clark, Neil
core  

Geochemistry and metallogeny of Neoproterozoic pyrite in oxic and anoxic sediments [PDF]

open access: yes, 2018
The Neoproterozoic Dalradian Supergroup contains widespread diagenetic sulphides present as pyrite. The sulphides occur in both carbonaceous shales and glacial diamictites, that were deposited in relatively reducing and oxidising conditions respectively.
Armstrong, J.   +5 more
core   +2 more sources

Copper Doping Enhances the Activity and Selectivity of Atomically Precise Ag44 Nanoclusters for Photocatalytic CO2 Reduction

open access: yesAdvanced Functional Materials, EarlyView.
By a simple anti‐Galvanic reaction, up to six copper atoms could be preferably doped into the Ag2(SR)5 staple motifs and Ag20 dodecahedral shell of an atomically precise Ag44(SR)30 nanocluster. When anatase TiO2 is used as substrate, the (AgCu)44/TiO2 photocatalyst exhibited much improved activity in photocatalytic CO2 reduction compared to Ag44/TiO2 ...
Ye Liu   +5 more
wiley   +1 more source

COMPOSITION OF GOLD AND FORMATION CONDITIONS OF ORES FROM THE KOPTO HYDROTHERMAL DEPOSIT (NORTHEAST TUVA) [PDF]

open access: yesМинералогия, 2018
The mineralogical and geochemical peculiarities and formation conditions of gold are considered for the Kopto gold stockwork deposit juxtaposed on skarns and metasomatites of the Tardan gold cluster (Northeast Tuva).
R.V. Kuzhuget   +3 more
doaj  

Lithosphere architecture characterized by crust-mantle decoupling controls the formation of orogenic gold deposits. [PDF]

open access: yesNatl Sci Rev, 2023
Hou Z   +10 more
europepmc   +1 more source

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