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Creator |
169f034520be3a0d0aff86e4441f6f0e |
| 27498 |
Creator |
33d05223e7b4d60c57d022f20621f60f |
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Creator |
7c9060b8651fa54e11ffd46d3aba6da8 |
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Creator |
807826f303889d38b5d7920c27f98471 |
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Creator |
b75227dc49245aab76a534b836099ab7 |
| 27498 |
Creator |
1bdcb1ed3c1e6c3763c915e3cb6910ae |
| 27498 |
Creator |
cc549cba108ec19d15d141864f758432 |
| 27498 |
Creator |
ext-abaaab29c2f8f9377051b4ea9bb7008b |
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Date |
2010-12-03 |
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Is Part Of |
p00092541 |
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Is Part Of |
repository |
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abstract |
The colonization and weathering of young seafloor basaltic glass from the mid-Atlantic
Ridge was examined. Microorganisms were localised to fractures in the surface of the
basalt and grew on the surfaces of material in the fractures. XAS. Raman spectroscopy
and NanoSIMS analysis of the fracture-filling material shows that it contains non-crystallised
iron-enriched altered glass and poorly ordered iron oxides. Organisms, which in places
develop into contiguous biofilms, develop on the surface of the material. No putative
biogenic alteration textures were observed in the basaltic glass at the fracture boundaries
suggesting that the microbial community is restricted to the secondary alteration
products. Microbial culturing shows the presence of heterotrophic bacteria including
<i>Sufitobacter</i> and <i>Halomonas</i> consistent with observations of photic zone
detritus associated with fracture-filling material. These data show that the interior
of fresh basaltic glass is an endolithic habitat for microorganisms, but that the
glass itself is not a primary source of cations or energy for the developing communities. |
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authorList |
authors |
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issue |
1-2 |
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status |
peerReviewed |
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volume |
279 |
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type |
AcademicArticle |
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type |
Article |
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label |
Cockell, C. S. ; van Calsteren, Peter ; Mosselmans, J. Fred W.; Franchi, Ian A. ;
Gilmour, Iain ; Kelly, Laura ; Olsson-Francis, Karen and Johnson, Diane (2010).
Microbial endolithic colonization and the geochemical environment in young seafloor
basalts. Chemical geology, 279(1-2) pp. 17–30. |
| 27498 |
label |
Cockell, C. S. ; van Calsteren, Peter ; Mosselmans, J. Fred W.; Franchi, Ian A.
; Gilmour, Iain ; Kelly, Laura ; Olsson-Francis, Karen and Johnson, Diane (2010).
Microbial endolithic colonization and the geochemical environment in young seafloor
basalts. Chemical geology, 279(1-2) pp. 17–30. |
| 27498 |
Title |
Microbial endolithic colonization and the geochemical environment in young seafloor
basalts |
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in dataset |
oro |