Evolution of the Var valley landscape Philippe AUDRA.
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Evolution of the Var valley landscape Philippe AUDRA
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Transcript of Evolution of the Var valley landscape Philippe AUDRA.
![Page 1: Evolution of the Var valley landscape Philippe AUDRA.](https://reader035.fdocuments.us/reader035/viewer/2022062518/56649e755503460f94b75f75/html5/thumbnails/1.jpg)
Evolution of the Var valley
landscape
Philippe AUDRA
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GLOMAR CHALLENGER 1970
Deep Sea Drilling Project
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Evaporites ≈ 5 Ma
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Spain
Morocco
N
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Deep-basin, shallow-water model [HSÜ, CITA & RYAN, 1973]
1 (5.9 Ma)
3 (5.3 Ma)
2 (T < 0.5 Ma)
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5.3 Ma: The Flood!
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Deep canyons onshore
Ebro
Rhône Danube
Nile?
Pô
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Nile valley (Egypt) / Aswan dam900 km from shore / 200 m bsl.
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A virtual canyon!
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Canyon’s geometry
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Canyon’s fill
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100 km long Canyon
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Var PaillonRoya
Loup
-1500 m / 15 km(10 %!)
Var mouth=> Submarine deep canyons
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Depth 1000 m
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Depth 350 m
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See you tomorrow on the field!Meeting at 8:00
be on time!!!