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Find the cause of the mass extinction on Earth - VIDEO PDF Print E-mail
Thursday, 09 April 2015 06:00

Scientists have found the cause of the mass extinction on Earth all the time. Triassic-Jurassic extinction event occurred during the period of the Mesozoic era. Then, 199.6 million years ago, on Earth died out almost half of all species of living organisms. The results of the writings were published in Geology.

According to scientists, massive extinction could cause several reasons. However, the main was a sharp decrease in the level of oxygen in the waters of the ocean Pantalasskogo. While the oceans cover nearly half of the earth and surrounded the supercontinent Pangaea. In the analysis found on the ocean floor remains microorganisms end Triassic been found that microorganisms are preferably green sulfur bacteria that develop in the absence of oxygen. These organisms also produce hydrogen sulfide and, therefore, the concentration of oxygen in water decreases further.

Green sulfur bacteria began to develop in the period, when the movement of tectonic plates of the earth's crust. Then underwater volcanoes thrown into the water a considerable amount of carbon dioxide and bacteria to proliferate steel in a favorable environment for themselves, enhancing their ability to live food poisoning the water and making it a hostile environment for the existence of many other organisms.


НАЖМИТЕ ЗДЕСЬ ДЛЯ ПРОСМОТРА ВСЕГО СПИСКА НОВОСТЕЙ О НЕОБЫЧНЫХ ЯВЛЕНИЯХ>>>

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