Monday, March 30, 2015
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Researchers have studied the preserved minerals in a Brazilian diamond and suggest it to be a hint of bright blue rocks deep within the Earth crust. They also add the new finding provides first direct evidence of water likely to be trapped in the rocks.
It is reported the diamond from central-west Brazil contains those minerals which are formed as down as 600 km below the Earth’s surface and contains significant amounts of trapped water.
Researchers have also come up with a theory that water may also be stored in deep interiors of other rocky planets. The finding is published in the Nature journal.
The diamonds which are found on the Earth’s surface after violent eruptions of deep volcanic rocks provide window into the deep Earth. Such volcanic rocks that erupt from deep Earth’s crust are called Kimberlites.
The new research was led by Professor Graham Pearson and they studied a diamond from a 100 million-year-old Kimberlie as a part of wider project. The diamond was found in Juina, Brazil.
Prof Pearson is from University of Alberta, Canada.
The research team found the diamond contained a mineral named ringwoodite, which is believed to only be found between 410 km and 660 km below the Earth’s surface. The new study also confirms some diamonds can originate very deep.
Professor Joseph Smyth from University of Colorado said it is stunning to know that interiors of Earth may contain several times of water compared with the oceans and also reveals hydrogen is an essential ingredient in the Earth.
Prof Smyth has spent years in studying minerals like ringwoodite.