Interpretación estratigráfica y estructural del área de Transvaal y Navarra, mediante registros eléctricos y sísmica 3D, península de Santa Elena

Abstract

This study presents a stratigraphic and structural analysis for areas of Transvaal and Navarre located in the province of Santa Elena, by analyzing electric logs and interpretation of existing 3D seismic. For geological formations Atlanta (Paleocene), Clay Passage Pebble Beds and Beds (below middle Eocene), an atmosphere of turbidite deposition was confirmed for a Low System Tract. The MPB1, MPB2, MPB3 and for training members MPB4 Passage Beds and MCPB1 and for training members MCPB2 Clay Pebble Beds for their petrophysical and lithological characteristics defined. Seismic determined 8 sequences (S1, S2, S3, S4, S5, S6, S7 and S8). Integrating both analyzes possible correlations were established: MPB1 with S4; MPB3 and MPB2 with S5; MPB4 with S6, MCPB1 with S7, MCPB2 with S8; S3 correspond to Fm. Atlanta. The roll-over structure and depocentre are the structures of interest in central Transvaal, while in Navarra a channel structure is evident. The game of faults affecting the area have a NS direction; NNE-SSW and NNW-SSE; listric are converging in an extensional environment caused by compression reactivated E-W environment.