The good news is, it’s at last been found, lying below the waters of the Indian Ocean, beneath the tiny, 790 sq. The anomalies highlight variations in the strength of the gravitational force over the surface of the Earth.
Gravity anomalies are often due to unusual concentrations of mass in a region.
Many people are under the false impression that carbon dating proves that dinosaurs and other extinct animals lived millions of years ago.
This date did not fit the preconceived notion that dinosaurs lived millions of years ago. They do this many times, using a different dating method each time.A zircon is a mineral prized by geologists both because they are extremely durable and because they contain trace amounts of radioactive thorium and uranium, which allow for radiometric dating over timescales longer than the age of Earth itself.Evidence of the earliest crust on Earth once came from a single grain of this mineral.For example, the presence of mountain ranges will usually cause the gravitational force to be more than it would be on a featureless planet — positive gravity anomaly.Conversely, the presence of ocean trenches or even the depression of the landmass that was caused by the presence of glaciers millennia ago can cause negative gravity anomalies.