|
Home / News / Tags / geology
|
|
Earth, unlike the other rocky planets in the solar system, is extremely geologically active, constantly shifting and remodeling the surface through plate tectonics shifts, volcanic eruptions and erosion, and mountains formation. This basically means that any evidence of old meteorite and asteroid impacts are mostly h... |
14 April 2008
08:30 GMT |
 |
|
Five hundred million years ago, the Earth had a single supercontinent, Gondwana, located in the southern hemisphere, but one hundred and eighty million years ago it suddenly split. Different pieces of Gondwana started moving apart from each other, thus creating the seven continents we know today. The mystery of why t... |
21 March 2008
07:26 GMT |
|
|
In the 19th century, scientists discovered that the rocks with fossils are deposited in a defined stratigraphical order, an this is how Paleontology emerged. Already in 1761, Giovanni Arduino saw that the rocks could be assigned to ages: Primary, Secondary, and Tertiary. In 1829, J. Desnoyers added the Quaternary.Tod... |
10 September 2007
14:06 GMT |
|
|
|
|
