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Dia_363-0969
DE: A diagram showing isotopic compositions and trends in metastable carbonates where mineral-controlled alteration takes place in a meteoric system capped by a caliche-soil profile
EN: A diagram showing isotopic compositions and trends in metastable carbonates where mineral-controlled alteration takes place in a meteoric system capped by a caliche-soil profile.
| Record Name | Dia_363-0969 |
|---|---|
| Photographer | Unbekannt |
| Dating | 1/1994 |
| Caption | Title Register of the original deposit: Carbonate rocks: vadose diagenesis, Karst. The covariant trend (A) has as end member marine sediments (seawater) and 13C-enriched pore waters; diagenetic calcites precipitated in a marine-meteoric mixing zone might have composed along such a trend. If no caliche-soil profile existed, alteration of marine sediments might follow the trend whown by the top arrow gently down to the left (B). the long vertical trend (C) would apply to rock-water interaction beneath a caliche-soil profile in the shallow vadose, where ?13C becomes heavier downward as "rock" CO2-/3 overpowers soil CO2 while ?18O remains the same, as shown in Figures 31 and 32. The data fields are from Gross (1964) and Allan and Matthews (1977,1982). The trends are in part based on interpretations by Hudson (1977), Lohmann (1982, 1983), and Magaritz (1983). |
| Caption (German) | Titel Register der Originalablage: Carbonate rocks: vadose diagenesis, Karst. The covariant trend (A) has as end member marine sediments (seawater) and 13C-enriched pore waters; diagenetic calcites precipitated in a marine-meteoric mixing zone might have compositions along such a trend. If no caliche-soil profile existed, alteration of marine sediments might follow the trend whown by the top arrow gently down to the left (B). the long vertical trend (C) would apply to rock-water interaction beneath a caliche-soil profile in the shallow vadose, where ?13C becomes heavier downward as "rock" CO2-/3 overpowers soil CO2 while ?18O remains the same, as shown in Figures 31 and 32. The data fields are from Gross (1964) and Allan and Matthews (1977,1982). The trends are in part based on interpretations by Hudson (1977), Lohmann (1982, 1983), and Magaritz (1983). |
| Physical description | Fotografie : Diapositiv |
| Format | 2,4 x 3,6 cm |
| Colour | schwarz/weiss |
| Orientation | Hochformat |
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| License | CC BY-SA 4.0 |
| Copyright notice | ETH-Bibliothek Zürich, Bildarchiv / Fotograf: Unbekannt / Dia_363-0969 / CC BY-SA 4.0 |
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