Earth has become a blue planet after 200 million years after its formation. This conclusion was made by German scientists. According to them, the oceans, which give the blue planet may be older than 4.1 billion years old, as was previously believed.
The first 600 years after the birth of the Earth is traditionally seen as a time when our planet was hot and unsuitable for life. However, this period could be much shorter, suggests Judith Koggon the University of Bonn.
Scientists have studied the chemical composition of rocks from Greenland that are derived from the mantle and have an age of about 4.1 billion years, which is only 400 million years after the formation of the Earth. The living conditions of the time are not very different from today - quoted by The Hindu Koggon.
Scientists in the first place, turned their attention to the fact that the natural material was rich in gold and platinum - metals that are dissolved in the molten iron. They were to be drowned in the iron-rich core of the planet as it is forming. However, the fact that these metals are present in the upper suggests that nucleation occurred oceans 200 million years earlier - about 4.3 billion years ago.
Earlier, U.S. scientists from Brown University (Rhode Island) have hypothesized that the water on the Earth and the moon was the result of a collision with an asteroid. They found that a molecule of water on our planet and its satellite are identical and have the same origin. The simplest explanation is that we have found - is that before hitting the water was already on the proto-Earth. Some molecules survived the crash - said the expert on the geology of Alberto Saala. According to recent studies, according to the Saala, up to 98% of the water on Earth is also originated from primitive meteorites.
