Abstract
| Original language | English |
|---|---|
| Title of host publication | Outokumpu Deep Drilling Project 2003-2010 |
| Editors | Ilmo T. Kukkonen |
| Place of Publication | Espoo |
| Publisher | Geological Survey of Finland |
| Pages | 199-206 |
| ISBN (Electronic) | 978-952-217-152-8 |
| ISBN (Print) | 978-952-217-151-1 |
| Publication status | Published - 2011 |
| MoE publication type | A3 Part of a book or another research book |
Publication series
| Series | Geological Survey of Finland. Special Paper |
|---|---|
| Number | 51 |
| ISSN | 0782-8535 |
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Keywords
- deep drilling
- bedrock
- boreholes
- ground water
- biosphere
- microorganisms
- bacteria
- Archaea
- Outokumpu
- Finland
Cite this
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Microbiological sampling and analysis of the Outokumpu Deep Borehole biosphere in 2007-2008. / Itävaara, Merja; Nyyssönen, Mari; Bomberg, Malin; Kapanen, Anu; Nousiainen, Aura; Ahonen, Lasse; Hultman, Jenni; Paulin, Lars; Auvinen, Petri; Kukkonen, Ilmo T.
Outokumpu Deep Drilling Project 2003-2010. ed. / Ilmo T. Kukkonen. Espoo : Geological Survey of Finland, 2011. p. 199-206 (Geological Survey of Finland. Special Paper; No. 51).Research output: Chapter in Book/Report/Conference proceeding › Chapter or book article › Scientific › peer-review
TY - CHAP
T1 - Microbiological sampling and analysis of the Outokumpu Deep Borehole biosphere in 2007-2008
AU - Itävaara, Merja
AU - Nyyssönen, Mari
AU - Bomberg, Malin
AU - Kapanen, Anu
AU - Nousiainen, Aura
AU - Ahonen, Lasse
AU - Hultman, Jenni
AU - Paulin, Lars
AU - Auvinen, Petri
AU - Kukkonen, Ilmo T.
PY - 2011
Y1 - 2011
N2 - Three sampling campaigns were performed during the years 2007-2009 to develop microbiological sampling techniques and to study the deep biosphere in the Outokumpu Deep Drill Hole R2500, drilled into a Palaeoproterozoic sequence of rocks consisting of metasediments, ophiolite-derived altered ultramafic rocks and pegmatitic granite. The results revealed the presence of microbial communities in the saline fluids sampled from the open borehole and fracture systems in the low-porosity crystalline bedrock in Outokumpu. According to the microbiological analyses, the microbial cell density varies from 105 cells ml-1 at the surface to 103 ml-1 at 2350 m depth. The composition of microbial communities in the borehole was found to vary with sampling depth, and the changes appear to be connected to both geological and geochemical factors as well as to fracture zones in the bedrock. Sulphate reducing bacteria and methanogenic archaea are present throughout the borehole water column.
AB - Three sampling campaigns were performed during the years 2007-2009 to develop microbiological sampling techniques and to study the deep biosphere in the Outokumpu Deep Drill Hole R2500, drilled into a Palaeoproterozoic sequence of rocks consisting of metasediments, ophiolite-derived altered ultramafic rocks and pegmatitic granite. The results revealed the presence of microbial communities in the saline fluids sampled from the open borehole and fracture systems in the low-porosity crystalline bedrock in Outokumpu. According to the microbiological analyses, the microbial cell density varies from 105 cells ml-1 at the surface to 103 ml-1 at 2350 m depth. The composition of microbial communities in the borehole was found to vary with sampling depth, and the changes appear to be connected to both geological and geochemical factors as well as to fracture zones in the bedrock. Sulphate reducing bacteria and methanogenic archaea are present throughout the borehole water column.
KW - deep drilling
KW - bedrock
KW - boreholes
KW - ground water
KW - biosphere
KW - microorganisms
KW - bacteria
KW - Archaea
KW - Outokumpu
KW - Finland
M3 - Chapter or book article
SN - 978-952-217-151-1
T3 - Geological Survey of Finland. Special Paper
SP - 199
EP - 206
BT - Outokumpu Deep Drilling Project 2003-2010
A2 - Kukkonen, Ilmo T.
PB - Geological Survey of Finland
CY - Espoo
ER -