West East Marañon Fold-And-Thrust Belt Coastal Belt Northern Peru Central Peru Subandean Thrust Belt Amazonas Foreland Weste

Western Cordillera Central Highlands Eastern Cordillera Subandean Zone

Coastal Belt Marañon fold-and-thrust belt Central Peru Northern Peru Subandean thrust belt Amazonas Foreland West East

Pleistocene Ucayali Timpia Pliocene Neogene Ipururo Ipururo Ipururo Miocene Calipuy Calipuy Calipuy Chambira Chambira Chambira Pozo Paleogene Pozo Pozo Yahuarango Yahuarango Casa- Yahuarango Casapalca Cachiyacu Casapalca Cachiyacu Vivian Late palca Chonta Vivian Chonta Casma Pariatambo Jumasha Jumasha Jumasha Oriente Gr Oriente Gr Cretaceous Chulec Sarayaquillo Gr Pariahuanca Crisnejas Farrat Pariahuanca á Gr Carhuaz Goyllaris- Early Goyllaris- Goyllarisquizga Ene Morro Solar Santa quizga Gr Pucar Cretaceous Chimú quizga Gr Gr Puente Piedra Pucará Gr Oyón Oyón Chaucha Mitu Gr Gr Mitu Gr Late .Jurassic Pucará Gr

Cercapuquio Pucará Gr Titicaca Gr Cauri Middle Jurassic Mitu Gr Ambo Gr Pucará Gr Mitu Gr Titicaca Gr Early Jurassic ? Ambo Gr Ambo Late Triassic Mitu Gr Contaya Early Triassic Excelsior Permian Gr Excelsior Gr Cabanillas Gr Carboniferous Excelsior Gr

Devonian

Contaya,Ananea, San Gaban,Sandia, San Jose 5 km Silurian Conglomerates Sandstones Evaporites Phyllite Ordovician Volcanics Shale Crossbedded sandstones Marl

Limestones Mudstones Metamorphic sandstones Crystalline basement Proterozoic Unconformity Potential detachment level Western Cordillera Central Highlands Eastern Cordillera Subandean Zone Coastal Belt Marañon Fold-and-Thrust Belt WSW RVQ Huaytapallana fault Otishi Cordillera ENE Eocene volcanics Huancayo Pe 5 Nevado Apuhuasa 5 Cañete Amazonas Foreland Ta Permo-Triassic 0 Tiabaya (80.5 Ma) Catahuasi (25 Ma) Tupe (Miocene) 0 Linga (97 Ma) (270-238 M.a) Incahuasi (82.5 Ma) -5 -5

-10 -10

-15 Arequipa massif [km] [km] 25 km Volcanics and volcaniclastics Intrusives Crystalline basement Paleozoic sediments Mesozoic sediments Foreland clastics Neoproterozoic of South Paleogene-Neogene volcanics Paleogene-Neogene Permian Late Cretaceous Paleogene-Neogene (Pliocene) American craton Early Cretaceous volcaniclastics Cretaceous Carboniferous Early Cretaceous Basement of Casma Permian-Triassic Volcanic Arc Devonian Late Jurassic Silurian-Ordovician Late Triassic- Early Jurassic Western Cordillera Eastern Cordillera Subandean Zone Coastal Belt Cordillera Negra Cordillera Blanca WSW Marañon Fold-and-Thrust Belt Amazonas Foreland ENE Huaraz 5 5 Huarmey Cordillera Blanca Puscao Rio Huallaga (62 Ma) (61Ma) (19-6 Ma) 0 Paccho San Jeronimo Permo-Triassic 0 (95 Ma) Santa Rosa (91-75 Ma) (270-238 M.a) -5 -5

-10 -10 Arequipa massif ? [km] [km] 25 km Volcanics and volcaniclastics Intrusives Crystalline basement Paleozoic sediments Mesozoic sediments Foreland clastics Neoproterozoic of South Paleogene-Neogene Permian Late Cretaceous Paleogene-Neogene Paleogene-Neogene volcanics American craton Cretaceous Early Cretaceous Early Cretaceous volcaniclastics Basement of Casma Permian-Triassic Volcanic Arc Late Jurassic Late Triassic- Early Jurassic N o r t h e r n T r a v e r s e

Western Cordillera Eastern Cordillera Subandean Zone Coastal Belt (Tarma-LaMerced)

388 km (deformed) 120 km 64.7 km 172.5 km 148 km

81.8 km 253.3 km 172.7 km Eastern Cordillera Coastal Belt Western Cordillera Subandean Zone (Tarma-LaMerced) 5 0 K 0 -5 -10 -10 508km (retro-deformed)

25 km

S o u t h e r n T r a v e r s e

Western Cordillera Eastern Cordillera

Coastal Belt Central Highlands Subandean Zone 396.4 km (deformed) 0 150 km 63 km 201.4 km 132 km

88 km 282.6 km 174.3 km

Eastern Cordillera Coastal Belt Western Cordillera Central Highlands Subandean Zone 0 5 0 0 -5 -10 -10

545 km (retro-deformed) 25 km