Explanation:
plate tectonics is where earths crust separates. into different plates there can be continental plated like continents and ocean plates
Answer:
transgression
Explanation:
In this case we will have deeper sea sediments (shales and limestones) being deposited on top of continentally-derived beach sediments (sand). This forms a sequence (from bottom to top) of: sand to shale to limestone. This is an indication of marine transgression
Uranium-lead radiometric dating is most often performed on the mineral zircon.