. Collected reprints / Atlantic Oceanographic and Meteorological Laboratories [and] Pacific Oceanographic Laboratories. Oceanography limestones, and shales (Chimana formation) (Metz, 1968b). Early Upper Cretaceous limestones and cherts (Querecual formation) were almost entirely stripped during an intra-Senonian folding and erosion. Mae- strichtian and Paleocene massive sandstones (San Juan formation) and shales and marls (Vidoho formation) were subjected to erosion together with the earlier Cretaceous rocks since Late Eocene or Early Oligocene time (Metz, 1968b). The eastern Cord
. Collected reprints / Atlantic Oceanographic and Meteorological Laboratories [and] Pacific Oceanographic Laboratories. Oceanography limestones, and shales (Chimana formation) (Metz, 1968b). Early Upper Cretaceous limestones and cherts (Querecual formation) were almost entirely stripped during an intra-Senonian folding and erosion. Mae- strichtian and Paleocene massive sandstones (San Juan formation) and shales and marls (Vidoho formation) were subjected to erosion together with the earlier Cretaceous rocks since Late Eocene or Early Oligocene time (Metz, 1968b). The eastern Cordillera de la Costa is an anticlinorium which con- sists of Lower Cretaceous garnet-epidote schists, quartz-mica schists, and calcareous schists that are similar in many respects to the Caracas group of the western Cordillera de la Costa (Christensen, 1961; Schubert, 1971). In the Araya Peninsula the Guamache formation (fig. 36) represents the oldest and most metamorphosed rocks (epidote-amphibolite facies; Schubert, 1971); the Carupano and Tunapui formations represent greenschist facies metamorphism and were compared to the Las Mercedes and the Las Brisas formations by Christensen (1961). Serpentinites and serpentinized periodotites are found in numerous localities near the contact of the Laguna Chica and Carupano formations (Schubert, 1971). The regional strike of the folding is east-northeast in both the Cordillera de la Costa and the Serrania del Interior, suggesting com- pression and thrusts from the north-northwest. While the motion along the longitudinal fault system that separates the metamorphic formations of the Araya Peninsula was essentially vertical (Schubert, 19 71), Christensen (1961), Salvador and Stainforth (1968), and Metz (1968a) believe that a large southward thrust placed the metamorphic rocks of the Araya and Paria Peninsula in contact with the Cretaceous sedimentary rocks of the Serrania del Interior in Late Eocene time. 63"50'. Figure 36. Geologic ma
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