African Geographic Pictures Collection
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| Image number: | 1949 |
| Feature : | tufa dam |
| Grouping : | karst, caves, chemical deposits |
| Discipline : | geomorphology |
| Year : | 2007 |
| Locality : | Ayni Brki, Tukhul |
| Country : | Ethiopia |
| Region - tribe : | Tembien |
| Physiographic region : | Abessinian highlands |
| Notice : | Downslope of waterfalls, old tufa deposits often garnish the locality of former waterfalls. Their datation could indicate the rates of waterfall retreat in the area. Tufa deposits are secondary CaCO3 deposits in places where river water is more aerated like at stream rapids, waterfalls... |
| Reference : | Moeyersons, Jan, 2007 Image 1949. In : Moeyersons, Jan : "African Geographic Pictures", http://www.africamuseum.be/de/research/collections_libraries/earth_sciences/collections/geopic" |