Results 21 to 30 of about 34,079 (237)
Characteristics of Selected Physical and Mechanical Properties as well as Chemical Composition of Aggregates based on: Steel Slags, Porphyry and Diabase [PDF]
Archives of Civil Engineering, 2020 This paper presents the results of tests of selected physical and mechanical properties as well as the chemical composition of two types of natural aggregates: porphyry and diabase, as well as artificial aggregate based on steel slags.
Iwona Jonczy +3 more
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Quantifying Hydrothermal Alteration: A Review of Methods
Geosciences, 2018 Hydrothermal alteration is proximal to many base and precious metal deposits, and its products can provide insights into the characteristics of hydrothermal systems.
Lucie Mathieu
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Oksident, 2019 The question of whether the traditional Gospels provide reliable historical information is discussed currently by scholars in light of various scientific methods. This matter, however, was also on the agenda among some intellectuals of antiquity.
Zafer Duygu
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Open Geosciences, 2022 Discovery of the Siah Diq porphyry (Cu–Au) prospect in the foothill of Dam Koh volcano is a recent exploration success story of mineralization buried under a 46 m alluvium cover in an exploratory mature Chagai belt.
Khalil Yasir Shaheen +4 more
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Solid Earth Sciences, 2017 The Beiya gold deposit is the biggest Cenozoic gold deposit in the Jinshajiang-Ailaoshan alkali-rich porphyry metallogenic belt within the Sanjiang region. Porphyry intrusions are widely distributed at the Beiya deposit. In this study, we investigate the
Xue-Quan Gao +4 more
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Frontiers in Earth Science, 2023 The first part of this article can be found here: 10.3389/feart.2023.819129 (DOI). Occurrences of significant concentrations of platinum-group elements (PGE) in porphyry deposits have seen limited attention and the geochemical controls on their ...
Samuel J. Robb +3 more
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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]
, 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
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The content of copper and heavy metals in the multilayer soil mud from the Buchim lake under the Buchim mine's waste dump, Republic North Macedonia [PDF]
Tehnika, 2020 The intense mineral extraction in mining areas during the last several decades has produced a large amount of waste material and tailings, which release toxic elements to the environment.
Serafimovski Todor S. +2 more
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Les Nouvelles de l’Archéologie, 2016 The recent excavations at Samut have confirmed the evidence of Agatharchides on the use of forced labour in the Ptolemaic gold-mines. On the other hand, there is almost no evidence for the presence of prisoners in the imperial quarries at Mons Claudianus
Hélène Cuvigny
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