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Stable isotopic compositions of Recent freshwater cyanobacterial carbonates from the British Isles: local and regional environmental controls
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| Zeitschriftentitel: | Sedimentology |
|---|---|
| Personen und Körperschaften: | , , |
| In: | Sedimentology, 40, 1993, 2, S. 303-314 |
| Format: | E-Article |
| Sprache: | Englisch |
| veröffentlicht: |
Wiley
|
| Schlagwörter: |
| author_facet |
ANDREWS, J. E. RIDING, R. DENNIS, P. F. ANDREWS, J. E. RIDING, R. DENNIS, P. F. |
|---|---|
| author |
ANDREWS, J. E. RIDING, R. DENNIS, P. F. |
| spellingShingle |
ANDREWS, J. E. RIDING, R. DENNIS, P. F. Sedimentology Stable isotopic compositions of Recent freshwater cyanobacterial carbonates from the British Isles: local and regional environmental controls Stratigraphy Geology General Engineering Energy Engineering and Power Technology |
| author_sort |
andrews, j. e. |
| spelling |
ANDREWS, J. E. RIDING, R. DENNIS, P. F. 0037-0746 1365-3091 Wiley Stratigraphy Geology General Engineering Energy Engineering and Power Technology http://dx.doi.org/10.1111/j.1365-3091.1993.tb01765.x <jats:title>ABSTRACT</jats:title><jats:p>Recent (<50 years old) freshwater cyanobacterial carbonates from diverse environments (streams, lakes, waterfalls) throughout Britain and Ireland were analysed for their stable carbon and oxygen isotope compositions. The mean δ<jats:sup>18</jats:sup>O value of −5–9‰ PDB for river and stream data represents calcite precipitation in equilibrium with the mean oxygen isotopic composition of precipitation in central Britain (−7–5‰SMOW) assuming a mean water temperature of 9°C. The mean δ<jats:sup>18</jats:sup>O of lake data, −4–5‰ PDB, is statistically different, reflecting the effects of residence time and/or variations in the oxygen isotopic composition of rainfall. Carbon isotopes have wide variations in both fluviatile and lake data sets (+ 3 to −12‰ PDB). These variations are principally controlled in the fluviatile samples by contribution of isotopically light ‘soil zone’ carbon relative to isotopically heavier carbon from limestone aquifer rock dissolution. Lake samples have the heaviest carbon isotope values, reflecting a trend toward isotopic equilibrium between atmospheric CO<jats:sub>2</jats:sub> and aqueous HCO<jats:sup>−</jats:sup><jats:sub>3</jats:sub>.</jats:p><jats:p>We infer that isotopic compositions of ancient cyanobacterial carbonates should also record environmental information, although the effects of stabilization and diagenesis on primary δ<jats:sup>18</jats:sup>O values will need careful consideration. Primary carbon isotope compositions should be well preserved, although in marine samples values will be buffered by the isotopic composition of aqueous marine bicarbonate.</jats:p> Stable isotopic compositions of Recent freshwater cyanobacterial carbonates from the British Isles: local and regional environmental controls Sedimentology |
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10.1111/j.1365-3091.1993.tb01765.x |
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| title |
Stable isotopic compositions of Recent freshwater cyanobacterial carbonates from the British Isles: local and regional environmental controls |
| title_unstemmed |
Stable isotopic compositions of Recent freshwater cyanobacterial carbonates from the British Isles: local and regional environmental controls |
| title_full |
Stable isotopic compositions of Recent freshwater cyanobacterial carbonates from the British Isles: local and regional environmental controls |
| title_fullStr |
Stable isotopic compositions of Recent freshwater cyanobacterial carbonates from the British Isles: local and regional environmental controls |
| title_full_unstemmed |
Stable isotopic compositions of Recent freshwater cyanobacterial carbonates from the British Isles: local and regional environmental controls |
| title_short |
Stable isotopic compositions of Recent freshwater cyanobacterial carbonates from the British Isles: local and regional environmental controls |
| title_sort |
stable isotopic compositions of recent freshwater cyanobacterial carbonates from the british isles: local and regional environmental controls |
| topic |
Stratigraphy Geology General Engineering Energy Engineering and Power Technology |
| url |
http://dx.doi.org/10.1111/j.1365-3091.1993.tb01765.x |
| publishDate |
1993 |
| physical |
303-314 |
| description |
<jats:title>ABSTRACT</jats:title><jats:p>Recent (<50 years old) freshwater cyanobacterial carbonates from diverse environments (streams, lakes, waterfalls) throughout Britain and Ireland were analysed for their stable carbon and oxygen isotope compositions. The mean δ<jats:sup>18</jats:sup>O value of −5–9‰ PDB for river and stream data represents calcite precipitation in equilibrium with the mean oxygen isotopic composition of precipitation in central Britain (−7–5‰SMOW) assuming a mean water temperature of 9°C. The mean δ<jats:sup>18</jats:sup>O of lake data, −4–5‰ PDB, is statistically different, reflecting the effects of residence time and/or variations in the oxygen isotopic composition of rainfall. Carbon isotopes have wide variations in both fluviatile and lake data sets (+ 3 to −12‰ PDB). These variations are principally controlled in the fluviatile samples by contribution of isotopically light ‘soil zone’ carbon relative to isotopically heavier carbon from limestone aquifer rock dissolution. Lake samples have the heaviest carbon isotope values, reflecting a trend toward isotopic equilibrium between atmospheric CO<jats:sub>2</jats:sub> and aqueous HCO<jats:sup>−</jats:sup><jats:sub>3</jats:sub>.</jats:p><jats:p>We infer that isotopic compositions of ancient cyanobacterial carbonates should also record environmental information, although the effects of stabilization and diagenesis on primary δ<jats:sup>18</jats:sup>O values will need careful consideration. Primary carbon isotope compositions should be well preserved, although in marine samples values will be buffered by the isotopic composition of aqueous marine bicarbonate.</jats:p> |
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| description | <jats:title>ABSTRACT</jats:title><jats:p>Recent (<50 years old) freshwater cyanobacterial carbonates from diverse environments (streams, lakes, waterfalls) throughout Britain and Ireland were analysed for their stable carbon and oxygen isotope compositions. The mean δ<jats:sup>18</jats:sup>O value of −5–9‰ PDB for river and stream data represents calcite precipitation in equilibrium with the mean oxygen isotopic composition of precipitation in central Britain (−7–5‰SMOW) assuming a mean water temperature of 9°C. The mean δ<jats:sup>18</jats:sup>O of lake data, −4–5‰ PDB, is statistically different, reflecting the effects of residence time and/or variations in the oxygen isotopic composition of rainfall. Carbon isotopes have wide variations in both fluviatile and lake data sets (+ 3 to −12‰ PDB). These variations are principally controlled in the fluviatile samples by contribution of isotopically light ‘soil zone’ carbon relative to isotopically heavier carbon from limestone aquifer rock dissolution. Lake samples have the heaviest carbon isotope values, reflecting a trend toward isotopic equilibrium between atmospheric CO<jats:sub>2</jats:sub> and aqueous HCO<jats:sup>−</jats:sup><jats:sub>3</jats:sub>.</jats:p><jats:p>We infer that isotopic compositions of ancient cyanobacterial carbonates should also record environmental information, although the effects of stabilization and diagenesis on primary δ<jats:sup>18</jats:sup>O values will need careful consideration. Primary carbon isotope compositions should be well preserved, although in marine samples values will be buffered by the isotopic composition of aqueous marine bicarbonate.</jats:p> |
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| imprint_str_mv | Wiley, 1993 |
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| spelling | ANDREWS, J. E. RIDING, R. DENNIS, P. F. 0037-0746 1365-3091 Wiley Stratigraphy Geology General Engineering Energy Engineering and Power Technology http://dx.doi.org/10.1111/j.1365-3091.1993.tb01765.x <jats:title>ABSTRACT</jats:title><jats:p>Recent (<50 years old) freshwater cyanobacterial carbonates from diverse environments (streams, lakes, waterfalls) throughout Britain and Ireland were analysed for their stable carbon and oxygen isotope compositions. The mean δ<jats:sup>18</jats:sup>O value of −5–9‰ PDB for river and stream data represents calcite precipitation in equilibrium with the mean oxygen isotopic composition of precipitation in central Britain (−7–5‰SMOW) assuming a mean water temperature of 9°C. The mean δ<jats:sup>18</jats:sup>O of lake data, −4–5‰ PDB, is statistically different, reflecting the effects of residence time and/or variations in the oxygen isotopic composition of rainfall. Carbon isotopes have wide variations in both fluviatile and lake data sets (+ 3 to −12‰ PDB). These variations are principally controlled in the fluviatile samples by contribution of isotopically light ‘soil zone’ carbon relative to isotopically heavier carbon from limestone aquifer rock dissolution. Lake samples have the heaviest carbon isotope values, reflecting a trend toward isotopic equilibrium between atmospheric CO<jats:sub>2</jats:sub> and aqueous HCO<jats:sup>−</jats:sup><jats:sub>3</jats:sub>.</jats:p><jats:p>We infer that isotopic compositions of ancient cyanobacterial carbonates should also record environmental information, although the effects of stabilization and diagenesis on primary δ<jats:sup>18</jats:sup>O values will need careful consideration. Primary carbon isotope compositions should be well preserved, although in marine samples values will be buffered by the isotopic composition of aqueous marine bicarbonate.</jats:p> Stable isotopic compositions of Recent freshwater cyanobacterial carbonates from the British Isles: local and regional environmental controls Sedimentology |
| spellingShingle | ANDREWS, J. E., RIDING, R., DENNIS, P. F., Sedimentology, Stable isotopic compositions of Recent freshwater cyanobacterial carbonates from the British Isles: local and regional environmental controls, Stratigraphy, Geology, General Engineering, Energy Engineering and Power Technology |
| title | Stable isotopic compositions of Recent freshwater cyanobacterial carbonates from the British Isles: local and regional environmental controls |
| title_full | Stable isotopic compositions of Recent freshwater cyanobacterial carbonates from the British Isles: local and regional environmental controls |
| title_fullStr | Stable isotopic compositions of Recent freshwater cyanobacterial carbonates from the British Isles: local and regional environmental controls |
| title_full_unstemmed | Stable isotopic compositions of Recent freshwater cyanobacterial carbonates from the British Isles: local and regional environmental controls |
| title_short | Stable isotopic compositions of Recent freshwater cyanobacterial carbonates from the British Isles: local and regional environmental controls |
| title_sort | stable isotopic compositions of recent freshwater cyanobacterial carbonates from the british isles: local and regional environmental controls |
| title_unstemmed | Stable isotopic compositions of Recent freshwater cyanobacterial carbonates from the British Isles: local and regional environmental controls |
| topic | Stratigraphy, Geology, General Engineering, Energy Engineering and Power Technology |
| url | http://dx.doi.org/10.1111/j.1365-3091.1993.tb01765.x |