Microfossil analysis allows us to map the subsurface and understand past geological times. In research labs all over the world, geologists spend countless hours looking through the microscope identifying and counting microfossils extracted from sedimentary rock below the seabed. Microfossil analysis allows us to map the subsurface and understand past geological times. In research labs all over the world, geologists spend countless hours looking through the microscope identifying and counting microfossils extracted from sedimentary rock below the seabed. Earth Sciences Phys.org – latest science and technology news stories