Geology on the Wing Wednesdays #9 – Atchafalaya river delta, Louisiana

I love this shot of the Gulf Coast just west of the Mississippi delta: Note this plane has a slightly larger wing than the normal photos I post 🙂 I could try to explain the history of the Atchafalaya and how the Mississippi would have avulsed to this location if the US Army Corps of …

Continue reading Geology on the Wing Wednesdays #9 – Atchafalaya river delta, Louisiana

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Exceptional dunes, Miocene fluvial rocks, central Spain

Ahh yes, does this remind you of Reservoir Dogs?  If you are lost, google it and see the similarities... These are some beautiful exposures in the Loranca basin of central Spain.  This beautiful area is home to the Tortola Formation, a Miocene fluvial succession displaying 'labyrrinthine' facies architecture (whatever that means). Overall this succession is a …

Continue reading Exceptional dunes, Miocene fluvial rocks, central Spain

Geology on the Wing Wednesdays #8 – Abandoned Sabine river delta near Cameron, Louisiana

The Sabine river has a very interesting coastal history, mostly documented by Rufus LeBlanc.  He shows a pattern of modern avulsions of the river updip from the coastline, leading to at least two deltas.  Due to low sediment supply and the position of the coastline with the dominant Gulf winds, the deltas are wave dominated. …

Continue reading Geology on the Wing Wednesdays #8 – Abandoned Sabine river delta near Cameron, Louisiana