Results 31 to 40 of about 438,188 (201)
Occurrence of rare earth element and yttrium (REY) in Tanjung formation coking coal from Sekako area, Central Kalimantan [PDF]
E3S Web of Conferences, 2020 Inorganic geochemistry of coal become a point of interest on coal study, especially relating with the occurrence of rare earth element. Tanjung Formation is one of coking coal bearing deposits in Barito Basin, Central Kalimantan.
Amijaya Hendra +2 more
doaj +1 more source
Записки Горного института, 2022 Data on the content and distribution of trace and rare-earth elements (SIMS method) in sectors and growth zones of a large zircon crystal from miaskite pegmatites of the Vishnegogorsky massif are presented.
Ekaterina V. Levashova +3 more
doaj +1 more source
Литосфера, 2018 Object. The article describes a new geological and geochemical data for Permian host rocks and copper sandstones (CS) in Orenburg’s Pre-Urals. Methods .
Alexander V. Volkov +4 more
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Journal of Economic Geology, 2023 Shotorsang iron skarn is located in 60 km northwest of Neyshabour (Khorasan Razavi, Iran) in Quchan-Sabzevar magmatic belt. Subvolcanic intrusion rocks have intruded into Cretaceous limestones and created skarnization.
Seyed Ahmad Mazaheri , Mojtaba Heydari
doaj +1 more source
The signature of river- and wind-borne materials exported from Patagonia to the southern latitudes: a view from REEs and implications for paleoclimatic interpretations [PDF]
, 2004 Riverine and wind-borne materials transferred from Patagonia to the SW Atlantic exhibit a homogeneous rare earth element (REE) signature. They match well with the REE composition of Recent tephra from the Hudson volcano,and hence this implies a ...
Bidart, Susana M. +4 more
core +2 more sources
Rocky Mountain Journal of Mathematics, 1994 This paper deals with the question when the Rees ring associated with a filtration of ideals is invariant under a given derivation. Necessary and sufficient conditions are presented in the general case. The above question is also considered for several specific filtrations.
TAMONE, GRAZIA, MOLINELLI SILVIA
openaire +4 more sources
The impact of vegetation on fractionation of rare earth elements(REE) during water–rock interaction [PDF]
, 2006 Previous studies on waters of a streamlet in the Vosges mountains (eastern France) have shown that Sr and rare earth elements (REE) principally originate from apatite dissolution during weathering. However, stream water REE patterns normalized to apatite
Aubert, Dominique +7 more
core +5 more sources
Roczniki Panstwowego Zakladu HigienyThe accelerating global use of lanthanides in modern consumer goods has introduced a new source of environmental pollution and potential health hazards.
Jerzy Falandysz +3 more
doaj +1 more source
Determination of the Content of the Rare Earth Elements (REE) in Akashat Phosphate rocks (Paliocene) in [PDF]
Kirkuk Journal of Science, 2009 The X-ray fluorescence technique meets the requirements of qualitative and quantitative analysis of widely variable major, minor and trace elements including rare earth elements (REE) in geological samples.
Kotayba T. Al-Youzbakey +1 more
doaj +1 more source