Procesos sedimentarios y diagenéticos recientes y su importancia como factores de interpretación de sus análogos antiguos

Joaquín Eduardo Aguayo Camargo*

*Instituto de Ciencias del Mar y Limnología, UNAM


The sedimentology has had a very important impulse during the last three decades, as science and as applied research, due to its implicatlons on the identiflcation and analysis of the recent continental and oceanic tectono-sedimentary provinces; its understanding is the base to identify and interpret their ancient analogous, which, as whole, conform the stratigraphic column. The subject is so wide and actually exist a broad literatura about it; therefore, in this paper is only taken in account the calcareous and terrigenous rocks because they are important as reservoirs of hydrocarbons and minerals. Particularly the dolomitized limestones have considerable volume of oil and gas and have hundreds of meters of thickness in the stratigraphic column, such are very dificult to interpret geologically. Therefore, also are mentioned sorne technics used as routine in other countries, that are adapted to the conventional petrographic microscope to show the original particles and textures of the rocks and give some light to interpret the sedlmentary environments and subenvironments. The new sedimentological criteria open a frontier to the research about the evolutive history of the geological provinces, particularly in such ones in which the stratlgraphic column is dolomitized and are highly petroliferous.