Da un'ottima fonte vengo a sapere, come d'altronde sospettavo, che "Météorites: le plus grand champ des cratères du mond" (e connessi) è una bufala: sono i notissimi Clayton's Craters di origine vulcanica, ben noti e studiati sin dagli anni '30!

Vedi per es.: (sotto Libyan Desert/Geography/Clayton's Craters)
http://www.fjexpeditions.com/frameset/past.htm


oppure biblio:

Clayton P.A., 1937. The South-Western Desert Survey Expedition 1930-1931. Bull. de la Sté Royale de Géographie d'Egypte, 19 (2): 241-265.

El-Baz F. and T.A. Maxwell (eds), 1982. Desert Landforms of southwest Egypt: A basis for comparison with Mars. Washington: NASA, CR-3611.

Said R., 1990. Armored playas. In: R. Said (ed.), The Geology of Egypt, p. 497-499. Rotterdam/Brookfield: A.A. Balkema.

Sandford K.S., 1933a. Volcanic Craters in the Libyan Desert. Nature, 131 (14 January, N° 3298): 46-47.

Sandford K.S., 1935a. Extinct volcanoes and associated intrusions in the Libyan Desert. Trans. Roy. Geol. Soc., 16: 331-358.

Sandford K.S., 1935b. Geological
observations on the northwest frontiers of the Anglo-Egyptian Sudan and the adjoining part of the southern Libyan Desert. Quarterly Jour. Geol. Soc. of London, 91: 323-381.

Sandford K.S., 1935d. Extinct vulcanoes and associated intrusions in the Libyan Desert. Trans. Roy. Geol. Soc. Cornwall, 16: 331-358.

ecc.

Che mondo!

[ 07 Ottobre 2004: Messaggio editato da: pyr ]