Some observations

Summary of field observations

Summary of field observations on lithification in carbonate-lithic rockslide deposits. The presence of cements also in deeper levels of rockslide masses (‚interstitial cementation‘ in Flims rockslide) and also along the flanks of later-incised river beds (e. g. Rhine, Inn) suggests that cementation may take place from very closely after the rockslide (Fern Pass) to well-after the event.
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Summary of field observations on lithification in carbonate-lithic rockslide deposits. The presence of cements also in deeper levels of rockslide masses (‚interstitial cementation‘ in Flims rockslide) and also along the flanks of later-incised river beds (e. g. Rhine, Inn) suggests that cementation may take place from very closely after the rockslide (Fern Pass) to well-after the event.

U/Th age-dated aragonite cement from the Fern Pass rockslide. Width of view 6.4 mm (from Ostermann et al., 2007).
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U/Th age-dated aragonite cement from the Fern Pass rockslide. Width of view 6.4 mm (from Ostermann et al., 2007).

Tschirgant rockslide. View onto underside of boulder of dolomitized Wetterstein reefal limestone. Here, the boulder underside show an overhanging, dihaidron-like recess that is filled by a cemented breccia. Pen is 14 cm long.
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Tschirgant rockslide. View onto underside of boulder of dolomitized Wetterstein reefal limestone. Here, the boulder underside show an overhanging, dihaidron-like recess that is filled by a cemented breccia. Pen is 14 cm long.

Tschirgant rockslide: View onto outraging underside of boulder, showing sinter ridge (right) and a small hollow stalactite (‚maccharoni‘).
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Tschirgant rockslide: View onto outraging underside of boulder, showing sinter ridge (right) and a small hollow stalactite (‚maccharoni‘).

Flims rockslide, Rabiusa gorge. Stacked meniscus cements that formed by precipitation of calcite along interstitial water tables (‚water-level cement‘). Width of view 17 mm.
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Flims rockslide, Rabiusa gorge. Stacked meniscus cements that formed by precipitation of calcite along interstitial water tables (‚water-level cement‘). Width of view 17 mm.

  1. Summary of field observations on lithification in carbonate-lithic rockslide deposits. The presence of cements also in deeper levels of rockslide masses (‚interstitial cementation‘ in Flims rockslide) and also along the flanks of later-incised river beds (e. g. Rhine, Inn) suggests that cementation may take place from very closely after the rockslide (Fern Pass) to well-after the event.
  2. U/Th age-dated aragonite cement from the Fern Pass rockslide. Width of view 6.4 mm (from Ostermann et al., 2007).
  3. Tschirgant rockslide. View onto underside of boulder of dolomitized Wetterstein reefal limestone. Here, the boulder underside show an overhanging, dihaidron-like recess that is filled by a cemented breccia. Pen is 14 cm long.
  4. Tschirgant rockslide: View onto outraging underside of boulder, showing sinter ridge (right) and a small hollow stalactite (‚maccharoni‘).
  5. Flims rockslide, Rabiusa gorge. Stacked meniscus cements that formed by precipitation of calcite along interstitial water tables (‚water-level cement‘). Width of view 17 mm.
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