Siliceous Speleothems and Associated Microbe-Mineral Interactions from Ana Heva Lava Tube in Easter Island (Chile)
11 páginas.-- 8 figuras.-- 1 tabla.-- 33 referencias
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dig-irnas-es-10261-942252018-09-13T09:14:23Z Siliceous Speleothems and Associated Microbe-Mineral Interactions from Ana Heva Lava Tube in Easter Island (Chile) Miller, A. Z. Pereira, M.F.C. Calaforra, José María Forti, Paolo Dionísio, A. Sáiz-Jiménez, Cesáreo 11 páginas.-- 8 figuras.-- 1 tabla.-- 33 referencias Coralloid-type speleothems were recorded on the ceiling of the Ana Heva lava tube in Easter Island (Chile). These speleothems were morphologically, geochemically and mineralogically characterized using a wide variety of microscopy and analytical techniques. They consist dominantly of amorphous Mg silicate and opal-A. Field emission scanning electron microscopy revealed a variety of filamentous and bacillary bacteria on the surface of the Ana Heva coralloid speleothems, including silicified filamentous microorganisms. Among them, intriguing reticulated filaments resemble those filaments documented earlier in limestone caves and lava tubes. The identification of silicified microorganisms on the coralloid speleothems from the Ana Heva lava tube suggests a possible role of these microorganisms in silica deposition. © 2014 Copyright Taylor and Francis Group, LLC. This research was partially financed by Portuguese Funds through FCT- Fundaçao para a Ciencia e a Tecnologia (PEst-OE/CTE/UI0098/2011) and also by the Spanish Ministry of Science and Innovation (Project CGL2011–2569). This work was supported by FCT grant to AZM (SFRH/BPD/63836/2009). Peer Reviewed 2014 2014-03-25T14:36:00Z artículo http://purl.org/coar/resource_type/c_6501 doi: 10.1080/01490451.2013.827762 issn: 0149-0451 Geomicrobiology Journal 31: 236- 245 (2014) http://hdl.handle.net/10261/94225 10.1080/01490451.2013.827762 Preprint http://dx.doi.org/10.1080/01490451.2013.827762 open Taylor & Francis |
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11 páginas.-- 8 figuras.-- 1 tabla.-- 33 referencias |
| format |
artículo |
| author |
Miller, A. Z. Pereira, M.F.C. Calaforra, José María Forti, Paolo Dionísio, A. Sáiz-Jiménez, Cesáreo |
| spellingShingle |
Miller, A. Z. Pereira, M.F.C. Calaforra, José María Forti, Paolo Dionísio, A. Sáiz-Jiménez, Cesáreo Siliceous Speleothems and Associated Microbe-Mineral Interactions from Ana Heva Lava Tube in Easter Island (Chile) |
| author_facet |
Miller, A. Z. Pereira, M.F.C. Calaforra, José María Forti, Paolo Dionísio, A. Sáiz-Jiménez, Cesáreo |
| author_sort |
Miller, A. Z. |
| title |
Siliceous Speleothems and Associated Microbe-Mineral Interactions from Ana Heva Lava Tube in Easter Island (Chile) |
| title_short |
Siliceous Speleothems and Associated Microbe-Mineral Interactions from Ana Heva Lava Tube in Easter Island (Chile) |
| title_full |
Siliceous Speleothems and Associated Microbe-Mineral Interactions from Ana Heva Lava Tube in Easter Island (Chile) |
| title_fullStr |
Siliceous Speleothems and Associated Microbe-Mineral Interactions from Ana Heva Lava Tube in Easter Island (Chile) |
| title_full_unstemmed |
Siliceous Speleothems and Associated Microbe-Mineral Interactions from Ana Heva Lava Tube in Easter Island (Chile) |
| title_sort |
siliceous speleothems and associated microbe-mineral interactions from ana heva lava tube in easter island (chile) |
| publisher |
Taylor & Francis |
| url |
http://hdl.handle.net/10261/94225 |
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