Answer to Question #211958 in Civil and Environmental Engineering for Panda

Question

1. How does paleoecology contribute to the exploration of oil and gas?
2. Name the major fossil groups that are used for biostratigraphic and palaeoenvironmental analysis in oil exploration
3. Explain why biostratigraphers are hesitant to use First Appearance Datum (FAD) but rather prefer the Last Appearance Datum (LAD) as bioevents in drilling operations.

Answer 1

1.In oil geology', paleontologists use micro fossils to determine the formation which contains specific fossils. These fossils are called index fossils and paleontologists use them and the principle of the superposition to make a biostragraphic correlation for the drilled formations.

2.Microfossils

3.because FADs can be problematic for correlating chronostratigraphic units, particularly over longer distances