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Scientists Locate Deep Origins of "Hawaiian Hotspot"（图）
Scientists Deep Origins Hawaiian Hotspot
2009/12/15
The Hawaiian Islands are one of the outstanding volcanic features on Earth, but their origins have been shrouded in mystery.Still in debate has been a theory proposed 40 years ago, which states that m...
Origins,compositions,andtechnological and environmental problems of utilization of oil shales
Origins compositions andtechnological environmental problems oil shales
2009/10/21
Oil shale (OS) is a large global resource of low-quality fossil fuel. According to the World Energy Council(WEC), the total world resources of shale oil (SO) are conservatively estimated at 3.3 trilli...
Mineralogy of the Louvres Merovingian garnet cloisonn?jewelry: Origins of the gems of the first kings of France
Mineralogy Louvres Merovingian garnet cloisonn Origins
2012/3/31
Proton-particle induced X-ray emission (p-PIXE) analyses have been performed on cloisonne ?jewelry from a necropolis excavated in 1987 at Louvres (North Paris) that dates from the Early Middle Ages (f...
Scanning Electron Microscope Study of Bauxites of Different Ages and Origins
Bauxite Boehmite Diaspore Gibbsite Halloysite Karstic Laterite
2012/2/10
Sixty-five bauxite samples of different ages and origins were studied by scanning electron microscopy. Only broken surfaces of the specimens were investigated. Size and form of individual crystals and...
Scan Electron Micrographs of Kaolins Collected from Diverse Origins—III. Influence of Parent Material on Flint Clays and Flint-Like Clays
Scan Electron Micrographs Kaolins Diverse Origins Flint-Like Clays
2012/2/13
The nature of the parent material from which flint clay or flint-like clay is derived may modify the texture of the clay as observed by SEM. Flint clays occurring in Pennsylvanian-age swamp basins int...