Results 51 to 60 of about 7,080 (201)

Modeling Uranium Transport in Koongarra, Australia: The Effect of a Moving Weathering Zone [PDF]

open access: yes
Natural analogues are an important source of long-term data and may be viewed as naturally occurring experiments that often include processes, phenomena, and scenarios that are important to nuclear waste disposal safety assessment studies.
Hassanizadeh, S.M.   +2 more
core   +2 more sources

Expand nuclear forensics [PDF]

open access: yes, 2013
Characterizing nuclear materials deters illicit trafficking and terrorism: more scientists, techniques and collaborations are needed.JRC.E.7 - Nuclear Safeguards and ...
MAYER Klaus
core   +1 more source

Ore Zoning, Geochemistry and Genesis of Iron Mineralization in Hormuz Volcano-Sedimentary Sequence, Larak Island, South of Bandar Abbas

open access: yesJournal of Economic Geology, 2023
Iron mineralization has occurred in Larak Island, located 30 km south of Bandar Abbas, within the Persian Gulf, in the Zagros structural zone. Stratigraphically, Larak Island dominantly consists of the Late Proterozoic Hormuz volcanic-sedimentary series,
Yousef Alizadeh Fard , Fardin Mousivand
doaj   +1 more source

Development of a versatile sample preparation method and its application for rare-earth pattern and Nd isotope ratio analysis in nuclear forensics [PDF]

open access: yes, 2014
An improved sample preparation procedure for trace-levels of lanthanides in uranium-bearing samples was developed. The method involves a simple co-precipitation using Fe(III) carrier in ammonium carbonate medium to remove the uranium matrix.
KRAJKO JUDIT   +3 more
core   +3 more sources

Nanoscale relationships between uranium and carbonaceous material in alteration halos around unconformity-related uranium deposits of the Kiggavik camp, Paleoproterozoic Thelon Basin, Nunavut, Canada [PDF]

open access: yes, 2016
International audienceConcentrations of 7% U and 1% Cu were identified in massive, brecciated, and amorphous carbonaceous materials (CM) characterized by strongly negative values of carbon stable isotopes (δ13C = − 39.1‰ relative to PDB).
Allard, Thierry   +4 more
core   +2 more sources

Sedimentary Environment, Tectonic Setting, and Uranium Mineralization Implications of the Yimin Formation, Kelulun Depression, Hailar Basin, China

open access: yesJournal of Marine Science and Engineering
The sandstone-type uranium deposit of the Kelulun Depression is the first industrially valuable uranium deposit discovered in the Hailar Basin. This study performed a systematic examination of 17 sandstone samples from the Yimin Formation in the Kelulun ...
Fanmin Meng   +7 more
doaj   +1 more source

Genesis of Pb-Zn-Cu-Ag Deposits Within Permian Carboniferous-Carbonate Rocks in Madina Regency, North Sumatra [PDF]

open access: yes, 2015
DOI:10.17014/ijog.2.3.167-184Strong mineralized carbonate rock-bearing Pb-Zn-Cu-Ag-(Au) ores are well exposed on the Latong River area, Madina Regency, North Sumatra Province.
Abidin, H. Z. (Hamdan)   +3 more
core   +2 more sources

Evaluation of machine learning methods for lithology classification of sandstone-type uranium deposit based on well logging data in the Songliao Basin, Northeast China

open access: yesNuclear Engineering and Technology
Lithology identification plays a crucial role in uranium exploration, providing important information about geological conditions, deposit characteristics, and mineralization environments, which is significant for the exploration, development, and ...
Kun Xiao   +9 more
doaj   +1 more source

The meillers Autunian hydrothermal chalcedony : first evidence of a similar to 295 Ma auriferous epithermal sinter in the Frech Massif Central. [PDF]

open access: yes, 2004
The Meillers "quartzite" deposit represents a major hydrothermal siliceous sinter, some 50 m thick and covering an area of some 30 ha within Autunian sandstone of the northern Massif Central.
Cocherie, Alain   +2 more
core   +3 more sources

Determination of Trace Rhenium in Sandstone-type Uranium Deposits by Inductively Coupled Plasma-Mass Spectrometry with Magnesium Oxide Sintering

open access: yesYankuang ceshi, 2016
The average content of uranium in sandstone-type uranium deposits is 635 μg/g, whereas the content of rhenium is 0.3-1.9 μg/g. Because of low rhenium content, now precise determination of low Re in high U ores remains unresolved.
WANG Yan-li   +4 more
doaj   +1 more source

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