Results 101 to 110 of about 8,412 (231)

Orogenic gold deposits: part of a global dynamic conjunction between subduction and gold [PDF]

open access: yesASEG Extended Abstracts, 2019
Orogenic gold deposits represent a coherent deposit class that were deposited from low-salinity CO2-rich fluids over a range of crustal depths from 3 to 20 km.
openaire   +1 more source

Critical metals for high-technology applications: mineral exploration potential in the north of Ireland [PDF]

open access: yes, 2016
There is global concern about the availability of ‘critical’ metals: those of growing economic importance but vulnerable to supply shortage. Production from domestic resources could contribute to security of supply. However, we have little information on
Lusty, Paul
core   +1 more source

A four stage evolution of the White Channel gravel: Implications for stratigraphy and palaeoclimates [PDF]

open access: yes, 2014
Although the White Channel gravel (WCG) of the Klondike district, Yukon, contains gold placers which have been exploited for over a century, few sedimentological studies have been undertaken.
Chapman, Robert   +3 more
core  

Modeling singular mineralization processes due to fluid pressure fluctuations [PDF]

open access: yes, 2020
Mineralization in the Earth's crust can be regarded as a singular process resulting in large amounts of mass accumulation and element enrichment over short time or space scales. The elemental concentrations modeled by fractals and multifractals show self-
Clarke, KC   +4 more
core  

General geology, alteration, and iron deposits in the Palaeoproterozoic Misi region, northern Finland [PDF]

open access: yes, 2003
The Paleoproterozoic Misi region forms the northeastern part of the Peräpohja Schist Belt in northern Finland. The area comprises mafic volcanic and sedimentary rocks, differentiated gabbros, and late-orogenic granitoids.
Eero Hanski, Pasi Eilu, Tero Niiranen
core   +1 more source

Lead isotope variations across terrane boundaries of the Tien Shan and Chinese Altay [PDF]

open access: yes, 2018
The Altaid orogen was formed by aggregation of Paleozoic subduction-accretion complexes and Precambrian basement blocks between the Late Proterozoic and the Early Mesozoic.
Chiaradia, Massimo   +3 more
core  

Palaeozoic oolitic ironstone of the French Armorican Massif: a chemical and structural trap for orogenic base metal-As-Sb-Au mineralization during Hercynian strike-slip deformation. [PDF]

open access: yes, 2007
In the Saint-Aubin-des-Châteaux quarry (Armorican Hercynian belt, western France), an epigenetic hydrothermal alteration affects an oolitic ironstone layer intercalated within the Lower Ordovician Grès armoricain Formation.
Boulvais, Philippe   +6 more
core   +4 more sources

Mineralization based on CSAMT data: A case study on the Gaoloushan section of Yangshan gold belt

open access: yesEngineering Reports
Yangshan gold belt (YSGB) in Gansu Province is a super‐large orogenic gold deposit located in the middle section of the Mianxian‐Lueyang arcuate suture zone (Mian‐Lue suture zone).
Yongling Chen   +7 more
doaj   +1 more source

Mining revival [PDF]

open access: yes, 2010
In relation to its size the United Kingdom (UK) is remarkably well-endowed with mineral resources as a result of its complex geological history. Their extraction and use have played an important role in the development of the UK economy over many years ...
Lusty, Paul
core  

Metallogenic potential and prospecting of orogenic gold deposits in the Shuihouling area of the Dabie Orogenic Belt: A geochemical evidence from stream sediment anomalies

open access: yesSolid Earth Sciences
The Shuihouling ductile shear zone, located in the core of the Dabie Orogenic Belt spanning Anhui and Hubei provinces, is a key structural unit with notable mineral potential. Situated within the Wudang-Tongbai-Dabie Mo-REE-Au-Ag-Pb-Zn polymetallic belt,
Xiandong Luo   +3 more
doaj   +1 more source

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