| Kapitel | Titel | Seite |
|---|---|---|
| Abstract / Zusammenfassung / Résumé | 4 | |
| 1 | Acknowledgements / Team Meübers | 5 |
| 2 | Introduction | 9 |
| 3 | Geological overview | 9 |
| 3.1 | General Geology | 9 |
| 3.2 | Karst | 9 |
| 4 | History of speleological exploration of Madagascar | 11 |
| 5 | The 1991/1992 speleological projects | 12 |
| 5.1 | Narinda | 12 |
| 5.1.1 | Mariarano river | 13 |
| 5.1.2 | Anjohibe area | 16 |
| 5.1.3 | Mitsinjo area | 17 |
| 5.2 | Namoroka | 22 |
| 5.3 | Mount Ibity | 24 |
| 6 | The 2003 speleological project to Bemaraha | 26 |
| 7 | References | 47 |
| Annex 1 | Caves surveyed during the 1991/92 and 2003 speleological projects | 49 |
| Annex 2 | An Assessment of the Cave Life in the Tsingy de Bemaraha (W. van den Berge) | 50 |
| Annex 3 | Le rapport final Madagascar 2003 | 51–62 |
| Annex 4 | Photo tables | 63–72 |
This report summarises three different speleological projects to Madagascar. Besides the successful 2003 Dutch expedition to the Tsingy de Bemaraha, two previous German projects to the Karst of South Narinda (NE of Majunga, 1991 und 1992) and Namoroka (SW of Majunga, 1992) are presented in detail.
During the 2003 Dutch expedition, fourteen caves with a total passage length of 7.228 m were discovered and surveyed in Bemahara National Park, including two major cave systems: Zohy Krisitaly (3.355 m long) and Zohy Malalaky (2.166 m long).
The 1991/92 German expeditions yielded 8.678 m of cave passage from 9 caves: 4.630 m long Anjohiambovonomby was explored in the Namoroka karst; 3.896 m resulted from the South Narinda karst, including the 2.104 m long Anjohikely; and in the central highlands of Madagascar 152 m long Grotte Aübert was discovered on Mount Ibity.