CHRONOSTRATIGRAPHIC CORRELATION THROUGH REFLECTANCE DATA IN THE BROACH DEPRESSION, CAMBAY BASIN, INDIA

This paper attempts a time-stratigraphic correlation with the availabl e data on maturity of vitrinite for some selected wells in the Broach Depression of the Cambay Basin. Applying some modifications in the kin etic model of first-order reaction, the change in R(o) with time and t emperature has been found to follow the equation: In [In (K'R(o)) ] = ln (At) - E/RT where T is the temperature, t the time, and R(o) the re flectance; A, E and R are parameters in the Arrhenius equation. This p rinciple is used to correlate three key wells on the western rising fl ank of the Broach Depression for evaluating time planes. The results h ave been found to be in consonance with the paleontological data.