Results 121 to 130 of about 58,548 (228)

Aspects of resource geology in Archaean orogenic gold deposits [PDF]

open access: yes, 2005
Within the mining industry, all phases of the operation are dependent on the resource model. The focus of the mining operation is a model, which is often based on incomplete or flawed data.
Roberts, Lucy Sarah
core  

The metallogenic evolution of the Greater Antilles

open access: yesGeologica Acta, 2011
The Greater Antilles host some of the world’s most important deposits of bauxite and lateritic nickel as well as significant resources of gold and silver, copper, zinc, manganese, cobalt and chromium.
C.E. NELSON   +3 more
doaj  

Diagenetic pyrite as a source for metals in orogenic gold deposits, Otago Schist, New Zealand

open access: yes, 2012
Framboidal diagenetic pyrite occurs in low-grade turbidites on the northeast margin of the Otago Schist. Laser ablation inductively coupled plasma mass spectrometry (ICP-MS) analyses of these framboids show that the main metals present, in addition to Fe,
Henderson, S (15521492)   +4 more
core  

Sources of metals and fluids in orogenic gold deposits: insights from the Otago and Alpine schists, New Zealand

open access: yes, 2006
The Otago and Alpine schists of the South Island of New Zealand form a young (<200 Ma), lithologically monotonous, metasedimentary belt with exposures ranging from unmetamorphosed graywackes to amphibolite facies rocks.
Teagle, D.A.H.   +5 more
core  

Tracing metal sources in orogenic gold deposits of the Timburu Goldfield, Meratus, Indonesia:A geochemical and statistical approach

open access: yes
Orogenic gold deposits at the Timburu Goldfield, Indonesia, are primarily hosted by metamorphosed ultramafic and volcanic rocks, as well as quartz lodes formed along shear zones.
Yahya Al Hakim, Andy   +4 more
core   +1 more source

The source of Au and S of the orogenic gold deposits in the Llamas de Cabrera district (Iberian Variscan Massif)

open access: yes, 2019
Using optical scanning electron microscopy, electron microprobe and sulphur isotopic analysis, pyrite and graphite in black slates and volcanic rocks from Luarca Formation were studied. Four types of pyrite are present in the black slates.
Caldevilla, P.   +4 more
core  

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