Rifugio Dibona, Cortina d'Ampezzo, Belluno Province, Veneto, Italyi
| Regional Level Types | |
|---|---|
| Rifugio Dibona | - not defined - |
| Cortina d'Ampezzo | Commune |
| Belluno Province | Province |
| Veneto | Region |
| Italy | - not defined - |
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Latitude & Longitude (WGS84):
46° 31' 56'' North , 12° 4' 11'' East
Latitude & Longitude (decimal):
Köppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Mortisa | 109 (2014) | 4.4km |
| Cadin di Sotto | 106 (2014) | 4.8km |
| Cortina d'Ampezzo | 5,423 (2014) | 5.3km |
| Selva di Cadore | 563 (2012) | 9.2km |
| Pian-Fossal | 104 (2016) | 9.8km |
Name(s) in local language(s):
Rifugio Dibona, Cortina d'Ampezzo, Provincia di Belluno, Veneto, Italia
Well-exposed outcrop of the Heiligkreuz-Santa Croce Formation (also known as Dürrenstein Formation, Upper Triassic) below Punta Anna (Tofane Group). This 300-m-thick outcrop, located near Rifugio Angelo Dibona, consists of dolomitic limestone, dolomitic sandstone, and hybrid sandstone (sandstones with a high calcic content), with an increase upward of polygenic conglomerates and cross-bedded sandstone intercalated with paleosols and clay intervals. Amber is present in sandstones and paleosols. It is considered one of the most ancient and substantial Triassic amber deposits in the world.
Amber is found: (a) as grains with circular to ovoid shapes, measuring 1-2 mm in diameter and 2-10 mm in length (although a specimen attaining 30 mm in diameter was found), embedded in sandstone and hybrid-sandstone. The fact that these grains are often fractured indicates that, after production, the resin was transported; (b) as well-preserved autochthonous drops, concentrated in the paleosol of the middle-upper part of the Heiligkreuz-Santa Croce Formation. These specimens with a size range of 2-6 mm (most often 3 mm in diameter) and an evident droplet shape, often show a little stem; bilobate drops with a second streaming down the first one have also been found.
Of particular interest is the presence of several microscopic inclusions: pollen, bacteria, algae and protozoa, perfectly preserved for over 220 million years (Roghi et al., 2005; Schmidt et al., 2006).
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsDetailed Mineral List:
| ⓘ 'Amber' Reference: Gianolla, P., Roghi, G., and Ragazzi, E. (1998): Upper Triassic amber in the Dolomites (Northern Italy). A paleoclimatic indicator? Rivista Italiana di Paleontologia e Stratigrafia, 104, 381-390; Roghi, G., Gianolla, P., and Ragazzi, E. (2002): Paleobotanical features of Upper Triassic amber in the Southern Alps (Italy). Abstract, 6th European Paleobotany-Palynology Conference, Athens, unpaged; Ragazzi, E., Fedele, P., Gianolla, P., and Roghi, G. (2003): L’ambra triassica delle Dolomiti. Rivista Mineralogica Italiana, 27, 1 (1-2003), 21-22; Roghi G., Ragazzi E., and Gianolla P. (2006): Triassic amber of the Southern Alps (Italy). Palaios, 21, 2, 143-154. |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Unclassified Minerals, Rocks, etc. | |||
|---|---|---|---|
| ⓘ | 'Amber' | - | |
List of minerals for each chemical element
References
Sort by
Year (asc) Year (desc) Author (A-Z) Author (Z-A)Gianolla, P., Roghi, G., and Ragazzi, E. (1998): Upper Triassic amber in the Dolomites (Northern Italy). A paleoclimatic indicator? Rivista Italiana di Paleontologia e Stratigrafia, 104, 381-390.
Roghi, G., Gianolla, P., and Ragazzi, E. (2002): Paleobotanical features of Upper Triassic amber in the Southern Alps (Italy). Abstract, 6th European Paleobotany-Palynology Conference, Athens, unpaged.
Ragazzi, E., Fedele, P., Gianolla, P., and Roghi, G. (2003): L’ambra triassica delle Dolomiti. Rivista Mineralogica Italiana, 27, 1 (1-2003), 21-22.
Roghi, G., Coppellotti, O., and Ragazzi, E. (2005): Fossil microorganisms in Triassic amber of the Dolomites. Rendiconti Società Paleontologica Italiana, 2, 209-217.
Roghi, G., Ragazzi, E., and Gianolla, P. (2006): Triassic amber of the Southern Alps (Italy). Palaios, 21, 2, 143-154.
Schmidt, A.R., Ragazzi, E., Coppellotti, O., and Roghi, G. (2006): A microworld in Triassic amber. Nature, 444, 835.
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