Results 11 to 20 of about 16,696 (213)

Large Igneous Provinces (LIPs) and Anoxia Events in “The Boring Billion”

open access: yesGeophysical Monograph Series, Page 449-486., 2021

Exploring the links between Large Igneous Provinces and dramatic environmental impact

An emerging consensus suggests that Large Igneous Provinces (LIPs) and Silicic LIPs (SLIPs) are a significant driver of dramatic global environmental and biological changes, including mass extinctions.
Shuan‐Hong Zhang   +4 more
wiley  

+1 more source

Critical Factors Controlling Pd and Pt Potential in Porphyry Cu–Au Deposits: Evidence from the Balkan Peninsula

open access: yesGeosciences, 2014
Porphyry Cu–Au–Pd±Pt deposits are significant Au resources, but their Pd and Pt potential is still unknown. Elevated Pd, Pt (hundreds of ppb) and Au contents are associated with typical stockwork magnetite-bornite-chalcopyrite assemblages, at the central
Demetrios G. Eliopoulos   +2 more
doaj   +1 more source

Petrographical Analysis of Warthian Fuvioglacial Gravels as a Tool to Trace the Source Area – A Case Study From Central Poland [PDF]

open access: yes, 2014
The petrographical features of the medium- and coarse-grained gravels (4-10 mm and 20-60 mm, respectively) of weathered and fresh (unweathered) deposits indicate, in combination with so-called indicator and statistical erratics, that two glacial lobes ...
Górska-Zabielska, Maria   +1 more
core   +2 more sources

Geophysical signatures of the gold rich porphyry copper deposits: A case study at the Dalli Cu-Au porphyry deposit

open access: yesJournal of Economic Geology, 2019
Introduction Geophysical exploration is an inexpensive, fast and efficient tool to provide valuable information about the sub-surface geological complications (Dentith and Mudge, 2014).
Moslem Fatehi, Hooshang Asadi Haroni
doaj   +1 more source

Enrichment in critical metals (In-Ge) and Te-Se in epithermal deposits of the 'La Carolina' district, San Luis, Argentina [PDF]

open access: yes, 2018
This study was supported by the ‘Proyecto de Ciencia y Técnica P-3-2-0414, of the National University of San Luis’ and by the Project CGL2016-76532-R from the MINECO of ...
Cepedal Hernández, María Antonia   +3 more
core   +2 more sources

Tectonic-magmatic setting for Early Cretaceous low-sulfidation epithermal gold deposits in the Xing–Meng Orogenic Belt: Constraints from zircon U–Pb and Hf isotopic data of wulaga deposit, NE China

open access: yesSolid Earth Sciences, 2022
The Xing–Meng Orogenic Belt hosts an amount of low-sulfidation epithermal gold deposits. However, the tectonic-magmatic setting remains problematic, which hinders understanding the factors that control the gold endowment in the region.
Yongbin Wang   +4 more
doaj   +1 more source

Glacial dynamics in pre-Alpine narrow valleys during the Last Glacial Maximum inferred by lowland fluvial records (northeast Italy) [PDF]

open access: yes, 2018
During the Last Glacial Maximum (LGM), most of the major glaciated basins of the European Southern Alps had piedmont lobes with large outwash plains; only a few glaciers remained within the valley.
Carraro, Anna   +4 more
core   +2 more sources

Timing of the magmatism of the paleo-Pacific border of Gondwana: U-Pb geochronology of Late Paleozoic to Early Mesozoic igneous rocks of the north Chilean Andes between 20° and 31°S [PDF]

open access: yes, 2014
Indexación: Web of Science; ScieloABSTRACT. U-Pb zircon geochronological data provide record of about 130 Ma of igneous activity in the Andes of northern Chile, which extended episodically from the latest Early Carboniferous to Early Jurassic (328-194 Ma)
Maksaev, Víctor   +2 more
core   +1 more source

Standard models for exploration and development complex copper-porphyry deposits in the Far East of the Russian Federation

open access: yesRUDN Journal of Engineering Research, 2019
The article deals with the prospects of development of copper-porphyry deposits discovered within the largest ore occurrences and prospecting areas of the Russian Far East.
Alexey S. Desyatkin   +2 more
doaj   +1 more source

Relationship of copper-molybdenum and gold minering with magmatism [PDF]

open access: yesE3S Web of Conferences
In the investigated deposits, a combination of skarn and hydrothermal mineralization has been identified. Specific facies within intrusive complexes align with distinct postmagmatic formations.
Zhonibekov Bobur   +4 more
doaj   +1 more source

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