This is a post about asymmetries of power, the globalisation of the grain trade, and the parts of the world where waters flow down to inland seas. It's less polished than I'd like it to be, because I have to go and put Driscoll Farms-brand strawberries out now. They're being shipped from California in big trucks, and since we can't stop the supply pipeline, we have to keep pushing, or they'll fill up our cooler. And we need the space! The Central Valley is, admittedly, not an endorheic basin, but close enough.
Anyway. . .
|Farmer's two-novel "Opar" series has a disproportionately long Wikipedia article, for those feeling nostalgic.|
It's been a long time since I've read Philip Jose Farmer's Hadon of Ancient Opar books, but I do remember that they're a riff on a rationalisation of the lost city of Opar in Edgar Rice Burroughs' Tarzan novels. Burroughs' Opar is a former Atlantean (the original thalassocracy!) colony stuck in the middle of Africa, somehow. Tarzan goes there from time to time and . . has adventures. Adventures that allow Burroughs to comment on race in America in interesting ways. I'd say more, but I wasn't kidding about the length and detail of the Wikipedia articles on the subject. Nostalgia for the win! Anyway, Farmer's novels explain Opar by proposing that Atlantis was actually a prehistoric civilisation established around inland seas that once existed in two enormous endorheic basins in the interior of northern Africa. Again, I'm a little hazy on the details, but I think that Farmer proposes that the water impounded in the basins eventually found its way to the Atlantic, causing Atlantis to be destroyed, not by flooding, but by having its sea drained away? Something like that is supposed to have happened in the intramontane Great Basin of the American West at the end of the last Ice Age, although, as far as I know, geologists do not currently believe that the Lake Chad Basin and adjacent endorheic basins in northern Africa were ever flooded (Map below the fold). Though eyewitness accounts of pre-50-million-years-ago period are sparse and unreliable.
The endorheic basins of Africa, whether flooded or not, are natural formations rather than largescale geoengineering. There are two reasons that I'm starting out with Farmer, anyway. The first is that it gives me an excuse to have some Roy Krenkel art in the thumbnail. The other is that I'm pretty sure that the first book starts with an historical introduction that describes a conjectured former channel connecting a sub-sea level depression within these larger endorheic basins to the Atlantic. I'm not entirely sure, but this sounds like Donald Mackenzie's 1877 scheme for an artificial inland sea in the southern Sahara, created by dredging out the sand blocking the channel at the coast in the region of "El Djouf." (Like a great many other African geological fantasias of the age, El Djouf barely exists.) I don't know anything about the Mackenzie scheme apart from what Wikipedia has told me, but, again, Roy Krenkel art.