The 1:100 000 scale Ñoquebe (3166-20) sheet covers the southwestern part of the Sierra de Chepes and the adjacent plain; this area is located in the southern part of the La Rioja Province (Figures 1, 2). The map area is ...

The 1:100 000 scale Santa Rita de Catuna (3166-15) sheet covers the northeastern part of the Sierra de Chepes, the southeastern part of the Sierra de Los Llanos, and the adjacent plain; this area is located in the southern ...

The 1:100 000 scale Corral de Isaac (3166-33) sheet covers the southern part of the Sierra de Las Minas and the surrounding plain which fall mostly in the southern part of the La Rioja Province, and, in the extreme south, ...

The 1:100 000 scale Ulapes (3166-27) sheet covers the northern part of the Sierra de Las Minas and the surrounding plain which are located in the southern part of the La Rioja Province (Figures 1, 2). The map area is bounded ...

The 1:100 000 scale Malanzán (3166-14) sheet covers the northwestern part of the Sierra de Chepes, the southwestern part of the Sierra de Los Llanos, and the adjacent plain; this area is located in the southern part of the ...

The 1:100 000 scale Desiderio Tello (3166-21) sheet covers the southeastern part of the Sierra de Chepes and the adjacent plain which are located in the southern part of the La Rioja Province (Figures 1, 2). The map area ...

Geology The map area covers most of the Sierras de Chepes, de Los Llanos and de Las Minas. The oldest rocks exposed are metasediments and meta-igneous rocks of the Olta Metamorphic Complex. The metasediments are interpreted ...