Results 51 to 60 of about 9,068 (209)
Geological Journal, EarlyView.U–Pb isotope and trace element geochemistry of apatite from carbonatites of Peshawar Plain Alkaline Igneous Province, western Himalaya shows Permo‐Carboniferous magmatism, an additional magmatic pulse during Cretaceous, and post‐magmatic hydrothermal/metasomatism during Oligocene. ABSTRACT U–Pb isotope and trace element geochemistry of apatite combined
Mehboob ur Rashid +9 more
wiley +1 more source
Yankuang ceshi, 2018 BACKGROUND Microscopy and Electron Microprobe are the main methods for the study of gold-bearing minerals. Using these methods, the content and morphology of gold-bearing minerals and their spatial relationship with other minerals were studied in the ...
JING Guo-qiang +4 more
doaj +1 more source
The German Soil Systematics and the Rationale Behind Its Revision
Journal of Plant Nutrition and Soil Science, EarlyView.ABSTRACT Background The German Soil Systematics is a pedogenetic classification based on the morphological expressions of pedogenic processes and has been developed over several stages since 1952. The system has successfully been in use for soil classification and soil survey for almost 70 years.
Einar Eberhardt +3 more
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Electrochemical study on Surface Oxidation of Natural Pyrite in Ferric Sulfate Solution
International Journal of Electrochemical Science, 2019 Surface oxidation of natural massive pyrite in 0.5 M sulfuric acid solutions with different ferric concentrations was investigated. The electrode of natural pyrite was made and its behavior was measured using cyclic voltammetry (CV), linear sweep ...
Guobao Chen, Hongying Yang
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Journal of Quaternary Science, EarlyView.ABSTRACT The Fiorano quarry paleosol developed within the Colli Albani volcanic district (Italy) in the time interval bracketed by the deposition of the Pozzolanelle pyroclastic‐flow unit (365 ± 4 ka) and the emplacement of the Capo di Bove lava flow (277 ± 2 ka).
Eduardo Di Marcantonio +4 more
wiley +1 more source
High‐Pressure Transformations and Stability of Ferromagnesite in the Earth's Mantle
Geophysical Monograph Series, Page 105-113., 2020 This book is Open Access. A digital copy can be downloaded for free from Wiley Online Library.
Explores the behavior of carbon in minerals, melts, and fluids under extreme conditions
Carbon trapped in diamonds and carbonate-bearing rocks in subduction zones are examples of the continuing exchange of substantial carbon ...
Eglantine Boulard +2 more
wiley +2 more sources
Influence of Ca2+ and Mg2+ on Pyrite Flotation at Different Slurry Temperatures
Kuangchan zonghe liyongThis is an article in the field of mineral processing engineering. Through single mineral flotation test, solution chemistry calculation, Zeta potential detection, XPS detection, the influence and regulation mechanism of Ca2+ and Mg2+ on the flotation of
Xin WANG +4 more
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Journal of Quaternary Science, EarlyView.ABSTRACT Glacial/interglacial climate cycles since marine isotope stage (MIS) 12 influenced the discontinuous and 73 m‐long sediment record from the volcanic crater of Rodderberg in the East Eifel Volcanic Field, Germany. High‐resolution grain size and geochemical data have been valued by numerical dating techniques (radiocarbon and luminescence dating,
Bernd Zolitschka +4 more
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Corrosion of Potential Canister Materials During Oxic to Anoxic Transient in Compacted Bentonite
Materials and Corrosion, EarlyView.A comprehensive analytical approach was applied to investigate material degradation phenomena of cast iron and copper as potential canister materials for the safe disposal of high‐level radioactive waste, as well as compacted bentonite exposed to artificial water relevant for disposal. ABSTRACT The long‐term performance of the engineered barrier system
Louisa Panjiyar +3 more
wiley +1 more source
Authigenic pyrite from the Laptev Sea continental slope: the impact of methane seepage activity
Известия Томского политехнического университета: Инжиниринг георесурсовRelevance. Pyrite is one of the most widespread authigenic minerals both in methane fluid seepage zones and in marine sedimentary systems in general, highlighting its importance in early diagenetic processes. Studying the mechanisms of its formation and
Alexey S. Ruban +3 more
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