T114 Explorations in Sedimentary Geology: Student Research (Posters)

GRAPHIC CORRELATION OF NEOGENE BIOSTRATIGRAPHIC DATUMS OF THE MACUSPANA BASIN, SOUTHERN GULF OF MEXICO

Program: Technical Sessions
Time: 1:30 PM – 5:30 PM

Authors

  • Yanina Narváez-Rodríguez Presenting Author
    Centro de Investigación Científica y de Educación Superior de Ensenada, Ensenada-Baja California, N/A
  • Rosa Carrillo
    Centro de Investigación Científica y de Educación Superior de Ensenada, Ensenada-Baja California, N/A
  • Javier Helenes
    Centro de Investigación Científica y de Educación Superior de Ensenada, Ensenada-Baja California, N/A
  • Carlos Jaramillo
    Smithsonian Tropical Research Institute, Ancon, N/A
  • José Del Moral-Domínguez
    PEMEX. Región Sur. Laboratorio de Paleontología y Petrografía, México, N/A
  • Victor Martínez-Morales
    PEMEX. Región Sur. Laboratorio de Paleontología y Petrografía, México, N/A
  • Olga Granados
    PEMEX. Región Sur. Laboratorio de Paleontología y Petrografía, México, N/A
  • Clara Marín
    PEMEX. Región Sur. Laboratorio de Paleontología y Petrografía, México, N/A
  • Maria Sánchez
    Instituto Mexicano de Petróleo, Exploración, N/A
  • Monica Ayala
    Instituto Mexicano de Petróleo, Exploración, N/A

Abstract

Six selected wells from the Macuspana Basin, Southeastern Gulf of Mexico, Mexico have been analyzed using graphic correlation method. Graphic correlation is a methodology to derive precise and relatively accurate biostratigraphic correlations. The analysis is based in calcareous nannofossil, planktonic foraminifera and palynomorph data define chronostratigraphic intervals for the Neogene time.

The age of the strata drilled ranged from Middle Miocene to Pleistocene. The graphic correlation analysis reveals unconformities that were detected in the wells with Early Pliocene strata underlying Pleistocene strata. A hiatus was detected in one well where Pliocene sediments were overlying Middle Miocene strata. One of the wells shows the lack of Late Miocene fossil markers represented by a hiatus. The composite zonation provides a rapid and consistent subdivision of the Neogene based on recognizable species that can be used to build via graphic correlation a chronostratigraphic framework.