Fosildiagénesis en amonoideos como herramienta en el estudio de la migración de hidrocarburos, Formación Los Molles, Neuquén

Resumen

Ammonites from the Los Molles Formation (Jurassic) at Chacay Melehue section (Neuquen, Argentina) were analyzed. Characteristic mineralogy and mineral textures, related to mineralizing fluids and hydrocarbons, were recorded during fossildiagenesis. Also, ammonites show shape variations, recording unbroken and brecciated forms. Mineralogical, textural and structural features are the consequence of variable pressures in the system during burial and differential behavior of ammonites against pressure system changes