Results 101 to 110 of about 4,997 (224)
Pétrographie et géochimie comparées des pellets phosphatés et de leur gangue dans le gisement phosphaté de Ras-Draâ (Tunisie). Implications sur la genèse des pellets phosphatés [PDF]
, 2010 International audienceLes séries phosphatées tunisiennes, d' âge Paléocène-Eocène inférieur, sont constituées d'alternances de strates richement phosphatées (P2O5 ≥ 18%) et de strates intercalaires peu riches en P (P2O5 ≤ 2%).
Ben Hassen, Aïda +2 more
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MetalsThe combined chemical extraction of rare earth elements from acid solutions and electrochemical separation of yttrium by electrodeposition from Estonian phosphorite ore samples containing rare earth elements has been conducted using ionic liquids at room
Silvester Jürjo, Ove Oll, Enn Lust
doaj +1 more source
Cainozoic mammals from coastal Namaqualand, South Africa [PDF]
, 1997 Main articleFossil mamma ls from various stratigraphic levels in coastal Namaqualand reveal that the littoral marine deposits, hitherto correlated to the Plio-Pleistocene, range in age from Early Miocene to Ple istocene and Holocene.
Pickford, Martin, Senut, Brigitte
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The Early Aptian Grünten Member: Description of a new lithostratigraphic unit of the helvetic Garschella Formation [PDF]
, 2018 .: Early Aptian sediments mostly referred to as "upper Orbitolina beds” are known from a relatively small number of outcrop areas throughout the distal part of the Helvetic Zone of Switzerland, Austria and Germany.
Föllmi, Karl +4 more
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The industrial minerals of the Maltese islands : a general introduction [PDF]
, 1995 In this article the author provides a description of industrial minerals found throughout the geology of the Maltese islands, such as limestone, clay, sandstones and phosphates.peer ...
Bianco, Lino
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Geosystems and GeoenvironmentThe Sonrai Formation of Bijawar Group, Lalitpur, Uttar Pradesh, India hosts phosphorite deposits. This study has been carried out using geochemical and stable isotope approaches to decipher the paleo-redox, paleo-climate, and paleo-salinity conditions of
Shamim A. Dar +6 more
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Afghanistan : revival and redevelopment [PDF]
, 2008 Major redevelopment projects in Afghanistan are placing large demands on the minerals industry, which is struggling to keep pace.
Benham, Antony, Mitchell, Clive
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, 2006 International audienceLarge collections of the brachiopod obolid Schmidtites celatus have been gathered from Upper Cambrian-Lower Ordovician strata in four northern Estonian localities. The morphological features and the taxonomic characters of the genus
Emig, Christian C.
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Characterization of Newly Discovered Phosphorite Deposits in Al-Tafeh, Jordan
GeosciencesThis study reports the discovery of a newly identified phosphorite deposit in the Al-Tafeh area of northern Jordan. Geological fieldwork investigated three outcrops and one comparison site in the Russifa area.
Faten Al-Slaty +3 more
doaj +1 more source
Design, Characteristic Analysis and Modeling of a Tailored Soft Robot for Phosphorite Grabbing
Applied SciencesThe grabbing of phosphorite rocks is an important process in the mining industry. Traditional grabbing technology based on rigid robots faces challenges such as heavy weight, low flexibility, and insufficient safety.
Yang Zhang +3 more
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