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Evolution of the Var valley
landscape
Philippe AUDRA
GLOMAR CHALLENGER 1970
Deep Sea Drilling Project
Evaporites ≈ 5 Ma
Spain
Morocco
N
Deep-basin, shallow-water model [HSÜ, CITA & RYAN, 1973]
1 (5.9 Ma)
3 (5.3 Ma)
2 (T < 0.5 Ma)
5.3 Ma: The Flood!
Deep canyons onshore
Ebro
Rhône Danube
Nile?
Pô
Nile valley (Egypt) / Aswan dam900 km from shore / 200 m bsl.
A virtual canyon!
Canyon’s geometry
Canyon’s fill
100 km long Canyon
Var PaillonRoya
Loup
-1500 m / 15 km(10 %!)
Var mouth=> Submarine deep canyons
Depth 1000 m
Depth 350 m
See you tomorrow on the field!Meeting at 8:00
be on time!!!