Magnetic polarity maps and time maps in the eastern Potwar Plateau; Applications of magnetic polarity stratigraphy

Abstract The use of magnetic polarity stratigraphy has allowed Upper Miocene and Plio-Pleistocene Siwalik sediments in the eastern Potwar Plateau to be dated precisely by direct correlation to the world-wide magnetic polarity time scale. Three examples are illustrated where measured sections calibrated by paleomagnetics allow geologic time to be extrapolated across broad areas to create new time maps based on the ability to see stratigraphic strike line patterns on Google Earth imagery. These maps allow precise dating of fossils as well as robust interpretations of the influence of growing folds and faults on the evolving fluvial geomorphology and depositional patterns of the region.