Criteria | Sub criteria | Potential geoheritage | |
| Economic value | Potential geosites | Landscapes; rivers; lakes; swimming pool; waterfall; canyon; valley; domes; mountains; caves | |
| Geosites for hiking and trekking | |||
| Gemstones | Sapphire, corundum | ||
| fossils | Vertebrate invertebrate and plants | ||
| Rocks | Eroded sandstone | ||
| Museum | Center of Isalo interpretation | ||
| Additional value | Aesthetic value | Landscapes | Eroded cliffs with strange shapes (Wolf, Queen…) |
| Landscapes panoramic view: wide monoclinal, tabular mountains; deep and short canyons; sandy domes; natural labyrinth of Isalo | |||
| Ecological value | Lakes | Natural and colorful lake (green) | |
| Waterfall | Warm waterfall; waterfall bath; waterfall in the colorful water ( dark; turquoise) | ||
| Swimming pool | Natural and colorful swimming pool (black and blue) | ||
| Savanna | Endemic flora and fauna | ||
| Forest | Evergreen forest, riparian forest; endemic flora and fauna | ||
| Cultural value | Spiritual | Tombs: royal village; exorcism. | |
| Folklore | People Bara and Sakalava | ||
| Archeological | Portuguese Cave | ||
| Educational and training value: protection and valorization of geoheritage | Regional | Awareness of local population | |
| Professional | Training of Isalo Park staff on geoheritage | ||
| Classroom | Teacher’s training | ||
| University | Field work | ||
| Scientific value | Geoscience | Geoprocesses of basin formation | |
| Sedimentology: deposit process of sandstone; mechanism of transportation, erosion and diagenesis; silicoclastic sedimentary rock (sandstone, siltstone, conglomerate) | |||
| Geological History | Isalo formation | ||
| Stratigraphy | Karroo supergroup: stratotype; sequence type | ||
| Geotectonic | Fault, diaclase | ||
| Paleontology | Biostratigraphy; paleoecology (paleoclimate, energy) | ||
| Geomorphological processes | Formation of deep Isalo sedimentary basin Fluvial processes Tectonic processes | ||