Devonian Carbonate Platforms and Alamo Breccia near Hiko Nevada
The regular horizontal deposition pattern of the 380Ma Devonian carbonate platforms deposition is interrupted by the deposition of the 100m (330feet) thick Alamo breccia around 378 Ma ago. The Alamo breccia is the result of a large meteorite impact into a shallow sea. The impact generated tsunamis that transported and buried large chunks of the corral beds over a 4000km2 (1400sqmiles) area, with chunks as large as 80x500m (260x1640 ft) as seen here (Yellow hatched area}. The detachment surface is clearly visible to the left, between the jagged yellow layer and the large clast above (arrow)
Devonian Carbonate Platforms and Alamo Breccia near Hiko Nevada
The regular horizontal deposition pattern of the 380Ma Devonian carbonate platforms deposition is interrupted by the deposition of the 100m (330feet) thick Alamo breccia around 378 Ma ago. The Alamo breccia is the result of a large meteorite impact into a shallow sea. The impact generated tsunamis that transported and buried large chunks of the corral beds over a 4000km2 (1400sqmiles) area, with chunks as large as 80x500m (260x1640 ft) as seen here (Yellow hatched area}. The detachment surface is clearly visible to the left, between the jagged yellow layer and the large clast above (arrow)