Photos

Fig. 1   Westward view on the volcan Tebenquicho located in the northern part of the Salar de Antofalla area.

Fig. 2   Thick ignimbrites exposed in the Quebrada Archibarca (located west of Vega Caballo Muerto). An Ar-Ar age determination indicates a Pliocene age (3.64 ± 0.02 Ma).
 

Fig. 3    Northwestern part of the Salina del Fraile. Aeolian sediments of Permian age.
 

Fig. 4   View into a valley located NW of the village Antofalla. Late Eocene to early Miocene Quiñoas sediments disconformably overlain by Miocene Potrero Grande sediments (with thick intercalated ignimbrites).

Fig. 5   View on the eastern flank of the Salina del Fraile. In front, Permian sediments overlain by Late Eocene to Early Miocene Quiñoas sediments. In the background, white-coloured ignimbrites forming the uppermost part of Miocene Potrero Grande Formation.

Fig. 6   Quiñoas Fm. - reddish sand and siltstones of an fluvial distributary system.

Fig. 7   Progressive angular unconformity indicating synsedimentary tectonic activity during the Early Miocene.

Fig. 8   Westward view from the eastern border of the Salar de Antofalla. In front the evaporite-bearing sediments of the Mid-Miocene to Pliocene Juncalito Fm.

Fig. 9  Reddish sand and siltstones of the Mid-Miocene to Pliocene Juncalito Fm. unconformably overlain by green sandstones and conglomerates of the Pliocene to recent Escondida Fm.
 

Fig. 10   D1B team at work.

Fig. 11    Race at 5000 m altitude.