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Expedition 02 · Deep South of Madagascar

The Deep South of Madagascar, from the Isalo sandstones to the Anosy coast

A 23-day geoscientific and territorial crossing.

Discover Madagascar on a great scientific crossing that links the Highlands, the eastern forests, the sandstone massifs, the sedimentary basins, the limestone plateaus and the coastal landscapes of the South.

Duration
23 days
Route
From Antananarivo to the Anosy coast
Leading discipline
Geosciences
Fitness level
Specified in the offer
Eroded sandstone massifs above a grassy savanna
Isalo National Park. Photo: Olivier Lejade, CC BY-SA 2.0

The seven great landscapes of the expedition

This expedition follows one common thread: understanding how geological history and the availability of water shape ecosystems, human activities, resources and ways of life. Geology is the leading discipline, enriched by four other scientific perspectives.

  1. Antananarivo and Andasibe

    Precambrian basement, RN2 landscapes, water and rainforest.

  2. Central Highlands

    Antsirabe, Ankaratra, granitoids, farming and local produce.

  3. Anja, Ihorombe and Isalo

    Granites, the structural setting towards Ihosy and sedimentary sandstones.

  4. Ilakaka, Sakaraha and Toliara

    Gemstones, basin architecture and petroleum geology on documents.

  5. Anakao and Nosy Ve

    Coastal ecosystems, reefs and maritime societies.

  6. Mahafaly and the far South

    Limestones, arid soils, hydrogeology, dunes and cliffs.

  7. Androy and Anosy

    Metamorphic terrains, Berenty, landforms and the Fort-Dauphin coast.

Turquoise salt lake fringed with dry thicket on the limestone plateau
Lake Tsimanampetsotsa, Mahafaly plateauPhoto: Frank Vassen, CC BY 2.0
Ring-tailed lemur carrying its young on her back, on ochre sand
Ring-tailed lemurs, BerentyPhoto: David Dennis, CC BY-SA 2.0
Wooded rocky coast and blue sea, with a peninsula on the horizon
Libanona coast, Fort-DauphinPhoto: Zoubl, CC BY-SA 4.0

Grouped scientific itinerary: 23 days

Days are grouped by area, with the main theme of the program. Activities, fitness level, logistics and fallback options are detailed in the program sent on request.

Day 1Antananarivo

  1. Day01

    Antananarivo

    Introduction to geology and fieldwork

  2. Black-and-white indri clinging to a branch in the rainforest

    Days2–3

    Andasibe

    Basement, rainforest and biodiversity

    Indri, Andasibe

  3. Days4–5

    Antsirabe, Fianarantsoa

    Landforms, granitoids, soils and local produce

  4. Day06

    Anja and Ihorombe

    Crystalline rocks and regional transition

  5. Eroded sandstone massifs above a grassy savanna

    Day07

    Isalo

    Sedimentology, sandstone and geomorphology

    Isalo National Park

  6. Day08

    Ilakaka, Sakaraha, Toliara

    Gemstones, basins and petroleum systems on documents

  7. Days9–10

    Anakao, Nosy Ve

    Coastline, coral island and seabirds

  8. Outrigger canoes pulled up on a south-western beach

    Days11–13

    Ambola, Itampolo

    Arid environments, water, soils and coastal geomorphology

    Canoes at Itampolo

  9. Days14–16

    Lavanono, Cape Sainte-Marie

    Hydrogeology, cliffs, dunes, biodiversity

  10. Ring-tailed lemur carrying its young on her back, on ochre sand

    Days17–18

    Berenty

    Dry landscapes and gallery forest

    Ring-tailed lemurs, Berenty

  11. Wooded rocky coast and blue sea, with a peninsula on the horizon

    Days19–21

    Fort-Dauphin, Anosy

    Metamorphic basement, coasts and beach minerals

    Libanona coast, Fort-Dauphin

  12. Days22–23

    Back to Antananarivo

    Scientific atlas, review and departure

Five possible scientific workshops

  1. Read the ancient basement and the major regional structures; tell the visible landscape from the map interpretation.

  2. Understand the Isalo sandstones, sedimentation and erosion landforms.

  3. Study the South’s sedimentary basins, petroleum systems and resources on documents.

  4. Compare wet, arid and marine environments along the crossing.

  5. Link natural resources, economic activities and land use.

Petroleum and gas geology: a documentary presentation

Sedimentary basins, stratigraphy, reservoir rocks, traps and regional hydrocarbon potential are explained on documents. The program includes no access to wells, concessions or oil installations.

Five fields, led by geosciences

Geology is the leading discipline; four other scientific perspectives shed light on the water, life, societies and farming of the South.

  • Lead field

    Geoscience, mineralogy and palaeontology

    Explore the history of rocks, landforms, sedimentary basins and mineralisation. Palaeontology may remain document-based.

    In the Deep South: Basement, Isalo, sediments and gemstones.

  • Biodiversity, evolution and forest ecology

    Observe adaptations, endemic species, rainforests and dry forests, and conservation.

    In the Deep South: Andasibe, Anja, Berenty.

  • Marine science, oceanography and reefs

    Read lagoons, tides, reefs, beaches, mangroves and coastal environments.

    In the Deep South: Anakao, Nosy Ve, Anosy.

  • Human sciences, anthropology and territorial economics

    Understand local knowledge, trades, resource use and value chains.

    In the Deep South: Crafts, the Vezo, livestock, resources.

  • Agronomy and local produce

    Explore the links between water, soils, crops, agricultural supply chains and climate.

    In the Deep South: Highlands, soils and dryland farming.

The field experience

  • Scientific notebook
  • Cross-sections
  • Observation sheets
  • Debriefing workshops
  • Illustrated atlas

No sampling is planned in the standard educational offer.

Logistics and conditions

The Deep South has specific constraints, taken into account in the offer:

  • Long days on the road and isolated tracks
  • Water and fuel
  • Boat crossings
  • Communications
  • Heat and safety
  • Possible changes to the itinerary

Prices and air transport to be confirmed in the quote.

Receive the program or organise your expedition

Request the detailed 23-day program, or tell us about your group to organise a Deep South expedition.

Let’s plan your scientific expedition to Madagascar

Would you like to join one of our expeditions, organise a university trip or explore a field program tailored to your group? Tell us what you need: MDCBridge can prepare a proposal based on your goals, the format you want and the services that have been confirmed.

Ground partner
sifaka-voyages.com
Your request
You are
Preferred dates (optional)
Fields you are interested in (optional)
Services you need (optional)

Your request goes straight to the MDCBridge team; an acknowledgement is sent to you by email.

Indicative programs: activities, access, transport, safety and support are adapted to field conditions and confirmed in the final offer.

Organise a Deep South expedition