To find your routing number online you will have to order checks online (DON'T ACTUALLY ORDER THEM THOUGH!). First, sign in to pnc online banking. Then, select the customer service tab at the top. Then, select order checks and supplies (located under accounts and services section).
Oldest Rocks On Earth. The oldest rocks are found in the cores of continents, and the youngest are in the rift valleys of mid-ocean ridges. they can be found at the tops of mountain ranges as well. some of the oldest rocks found on Earth can be found at the top of the Beartooth mountain range here in MT. Atlantic ocean.
So far, rocks older than 3.0 billion years have been found in North America, India, Russia, Greenland, Australia, and Africa. The oldest rocks in North America, found in Minnesota, give a U-Pb discordia age of 3.56 billion years (Figure 5).o determine the age of the Solar System and the Earth, we must search for the oldest, least disturbed meteorites. K-Ar ages on stone meteorites range from about 400 million years to nearly 5 billion years, with a large concentration at 4.4 to 4.6 billion years.