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cenospheres

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Journal Article
Journal: Geology
Published: 01 May 2008
Geology (2008) 36 (5): 355-358.
... in various K-P boundary locations across North America. This refutes the inference that wildfires occurred on a global scale, and requires an alternative explanation for the aciniform soot. Here we describe significant concentrations of carbon cenospheres in K-P boundary sediments from New Zealand, Denmark...
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Scanning electron microscope photos of carbon <b>cenospheres</b>. A, B: Woodside C...
in > Geology
Published: 01 May 2008
Figure 2. Scanning electron microscope photos of carbon cenospheres. A, B: Woodside Creek, New Zealand. C, D: Stevns Klint, Denmark. E, F: Rock Creek East, Canada. Note bubble surface texture of carbon cenospheres.
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CRETACEOUS-PALEOGENE BOUNDARY CARBON <b>CENOSPHERES</b>
in > Geology
Published: 01 May 2008
TABLE 1. CRETACEOUS-PALEOGENE BOUNDARY CARBON CENOSPHERES
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Scanning electron microscope photos. A: Aciniform soot from acetylene combu...
in > Geology
Published: 01 May 2008
Figure 1. Scanning electron microscope photos. A: Aciniform soot from acetylene combustion. Note “grape bunch” morphology. B: Industrial contaminant carbon cenospheres from Monte Pietralata (Italy). Note porous morphology that distinguishes industrial contaminants from Cretaceous-Paleogene (K-P
Journal Article
Published: 01 January 2012
Reviews in Mineralogy and Geochemistry (2012) 74 (1): 211-278.
...–1 μm) could for instance be used in high performance concretes ( Sear 2001 ), cenospheres as a strong lightweight inert filler material ( Sear 2001 ) or for specific aerospace applications ( Mondragon et al. 1990 ). The magnetic fraction for instance could be competitive as ferro-pozzolan...
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Series: Geological Society, London, Engineering Geology Special Publications
Published: 01 January 2006
DOI: 10.1144/GSL.ENG.2006.021.01.15
EISBN: 9781862393837
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Series: Geological Society, London, Special Publications
Published: 01 January 2004
DOI: 10.1144/GSL.SP.2004.236.01.13
EISBN: 9781862394841
... also Tishmack and Burns, 2004 ). Simpler, single-shelled hollow spheres, termed ceno-spheres, are also common. Coal fly ashes with a high quantityof hollow particles are often benefi-ciated by immersion in water-filled ponds, where the cenospheres float. Thus, they can be removed by a rotating skimmer...
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Journal Article
Published: 01 August 2005
American Mineralogist (2005) 90 (8-9): 1270-1277.
.... ( 2001 ) Study of mechanism of electroless copper coating of fly-ash cenosphere particles . Applied Surface Science , 181 , 35 – 50 . Smarda , J. , Smajs , D. , Komrska , J. , and Krzyzanek , V. ( 2002 ) S-layers on cell walls of cyanobacteria . Micron , 33 , 257 – 277...
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Series: Geological Society, London, Special Publications
Published: 01 January 2004
DOI: 10.1144/GSL.SP.2004.236.01.14
EISBN: 9781862394841
... of these particles ( Hubbard et al. 1984 ). The melt thus formed is frothed by simultaneous production of CO 2 from Fe-catalysed oxidation of carbonaceous matter. This produces hollow, gas-filled glass-walled fly ash particles called ‘cenospheres‘. The mineral kaolinite has a very high ash-fusion temperature due...
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Series: SEPM Special Publication
Published: 01 January 2011
DOI: 10.2110/sepmsp.100.297
EISBN: 9781565763098
... of the shock-released CO 2 are the same or even higher as those in the unshocked calcite. On the other hand, several observations suggest that 13 C-depleted (organic) carbon was abundant in the target rocks of the Chicxulub impact. Based on the distribution of carbon cenospheres in KT boundary sediments...
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Journal Article
Published: 01 November 2003
American Mineralogist (2003) 88 (11-12): 1853-1865.
... hollow (cenospheres) or filled, or that they contain a series of smaller spheres (plerospheres). These morphological characteristics are typical of fly ash produced through coal combustion (e.g., Hulett and Weinberger 1980 ; Smith 1980 ; Hubbard et al. 1984 ; Fishman et al. 1999 ; Hower et al. 1999...
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Series: Geological Society, London, Special Publications
Published: 01 January 2003
DOI: 10.1144/GSL.SP.2003.213.01.08
EISBN: 9781862394612
... in water-melt interaction experiments. They found hollow spheres (cenospheres) and filled hollow spheres (plerospheres). Spherical particles are also known from phreatomagmatic ash deposits around Kilbourne Hole, New Mexico. Wohletz (pers. comm. 2000) mentions metallic spherical particles from the Bishop...
Journal Article
Published: 01 January 2014
Reviews in Mineralogy and Geochemistry (2014) 79 (1): 257-369.
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