Results 91 to 100 of about 4,997 (224)

Cadmium sulfide in a Mesoproterozoic terrestrial environment [PDF]

open access: yes, 2014
Peer ...
Bowden, S.   +4 more
core   +1 more source

Minerals from the ocean [PDF]

open access: yes, 1974
Mineral resources are present offshore either as bedrock or superficial Bedrock deposits include petroleum, coal, sulphur, evaporites, and metals. Many of these deposits can be exploited in shallow water using currently-available technology including ...
Cook, PJ
core   +2 more sources

Variation of Oriental Oak (Quercus variabilis) Leaf δ13C across Temperate and Subtropical China: Spatial Patterns and Sensitivity to Precipitation [PDF]

open access: yes, 2015
The concentration of the carbon-13 isotope (leaf δ13C) in leaves is negatively correlated with the mean annual precipitation (MAP) atlarge geographical scales.
Burgess, Paul J.   +6 more
core   +3 more sources

Stepwise Extraction Study on the Occurrence of Uranium in Tongren Bahuang Phosphorite, Guizhou

open access: yesYankuang ceshi, 2018
BACKGROUND Previous studies have found that phosphorite deposits in Tongren Bahuang of Guizhou Province is rich in the radioactive element uranium.
WANG Zhi-gang   +3 more
doaj   +1 more source

Comment on the article by the Schweizerisches Komitee für Stratigraphie (SJG, Vol 102/2) What is in a stratigraphical name? [PDF]

open access: yes, 2018
The two newly defined lithostratigraphic units - the Rohrbachstein and Plaine-Morte Beds - within the recently reinstated Grünten Member (former "Upper Orbitolina Beds") embody characteristic lithostratigraphic units, which are well distinguishable in ...
Föllmi, Karl
core  

Production of organomineral fertilizers based on local raw materials and nitrogen-fixing microorganisms [PDF]

open access: yesE3S Web of Conferences
This article deals with production of organomineral fertilizers based on local raw materials cattle dung local ores (Kyzilkum phosphorite flour and Navbahor bentonite) and nitrogen-fixing microorganisms.
Voqqosov Zuxriddin   +2 more
doaj   +1 more source

Комбинированные методы получения высококачественного фосфатного концентрата и кондиционной фосфоритной муки при обогащении желваковых фосфоритов [PDF]

open access: yes, 2015
Изложены результаты исследований по разработке комбинированной технологии обогащения низкосортных желваковых фосфоритов с применением промывки, классификации исходной руды, последующих основной и контрольных флотаций, двух-трех перечистных операций ...
Войтенко, Анатолий Иванович   +4 more
core  

Analysis of Gamma Radiation from a Radon Source: Indications of a Solar Influence

open access: yes, 2012
This article presents an analysis of about 29,000 measurements of gamma radiation associated with the decay of radon in a sealed container at the Geological Survey of Israel (GSI) Laboratory in Jerusalem between 28 January 2007 and 10 May 2010.
Akhmedov   +19 more
core   +1 more source

As sucessões carbonáticas neoproterozóicas do Cráton do São Francisco e os depósitos de fosfato: correlações e fosfogênese [PDF]

open access: yes, 2007
Neoproterozoic Carbonate Sequences of the São Francisco Craton and the Phosphate Deposits: Correlation and Phosphogenesis. The neoproterozoic carbonate successions of the São Francisco craton are formed by thick carbonate and siliciclastic strata ...
Azmy, Karem   +3 more
core   +1 more source

Spartan Daily, October 6, 1967 [PDF]

open access: yes, 1967
Volume 55, Issue 13https://scholarworks.sjsu.edu/spartandaily/5020/thumbnail ...
San Jose State University, School of Journalism and Mass Communications
core   +1 more source

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