Stable isotope and dissolved inorganic carbon sampling, monitoring and analytical methods in CO2 injection and EGR projects

2010 ◽  
pp. 75-78 ◽  
Author(s):  
A Myrttinen ◽  
V Becker ◽  
R van Geldern ◽  
J Barth ◽  
M Nowak
Keyword(s):  
Stable Isotope ◽  
Analytical Methods ◽  
Inorganic Carbon ◽  
Dissolved Inorganic Carbon ◽  
Co2 Injection

scholarly journals Note on the stable isotope values of vein calcite in the El-Seboah peralkaline granite (SW Egypt)

Mineralogia ◽  
2011 ◽  
Vol 42 (2-3) ◽  
pp. 113-120 ◽  
Author(s):  
Kamaleldin Hassan
Keyword(s):  
Stable Isotope ◽  
Inorganic Carbon ◽  
Dissolved Inorganic Carbon ◽  
The Other ◽  
Peralkaline Granite ◽  
Isotope Data ◽  
Other Hand ◽  
Calcite Deposition ◽  
Stable Isotope Data

Note on the stable isotope values of vein calcite in the El-Seboah peralkaline granite (SW Egypt)Stable isotope data for carbon (δ13C) and oxygen (δ18O) are used to constrain the environments of calcite formation in two veins in the El-Seboah peralkaline granite in south-western Egypt. Vein I with calcite-magnetite-goethite-hematite-quartz, and vein II with calcite-magnetite-goethite-kaolinite-hematite-quartz are texturally distinct. The calcite of each vein has characteristic δ13C- and δ18O-values: + 0.32 and -7.28‰ for vein I and + 1.16 and - 1.21‰ for vein II, respectively. The observed differences between the δ13C values of the two veins indicate that they represent two separate systems of primary dissolved inorganic carbon formed at or near equilibrium with atmospheric CO2. The δ18O values, on the other hand, indicate calcite deposition from meteoric waters which were fresh for vein I and brackish for vein II.

A 37-Meter Record of Paleoclimatological Events from Stable Isotope Data on Continental Molluscs in Valle di Castiglione, Near Rome, Italy

1999 ◽  
Vol 52 (3) ◽  
pp. 293-299 ◽  
Author(s):  
Giovanni Zanchetta ◽  
Francesco Paolo Bonadonna ◽  
Gabriello Leone
Keyword(s):  
Stable Isotope ◽  
Crater Lake ◽  
Inorganic Carbon ◽  
Dissolved Inorganic Carbon ◽  
Whole Body ◽  
Isotopic Data ◽  
The Core ◽  
Geochemical Parameters ◽  
Isotope Analyses ◽  
Arid And Semiarid

New stable isotope analyses on molluscan shells from a long core drilled in the crater lake of Valle di Castiglione, near Rome, extended the investigated portion of the core to 37 m. The succession of δ18O‰ values in the core interval 37–2.3 m ranges from −2.8 to +6.9‰ with only six samples below 0‰ (PDB). These results point to arid climatic phases coupled with the high measured δ18O values of the biogenic carbonate. In contrast, depleted 18O samples correspond to wet climatic periods, in agreement with a strong evaporative control on the lake water isotopic composition. The 13C content of the shells shows sharp changes controlled by the dissolved inorganic carbon isotope budget. Isotopic data suggest that the whole body of water behaved as a closed system, thus resembling lacustrine systems located in arid and semiarid regions where hydrological control dominates the geochemical parameters.

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