Volcanic eruption helps dinosaurs dominate the Earth

The high concentration of sedimentary mercury reinforces the rising dinosaur hypothesis that dominates the Earth after a series of volcanic events erupted 200 million years ago.

The new study by the University of Oxford University, UK-based Tamsin Mather strengthens the hypothesis of volcanic eruptions over 200 million years ago that caused global climate change, leading to a major extinction event. At the end of the Three Dynasties and paving the way for the rise of dinosaurs, Conversation on June 21 reported.

Previously, geologists discovered Earth's crust containing a large amount of volcanic rock at the end of the Tam Diep century. Fossil data show that during this period, a large number of species on Earth were extinguished, paving the way for the proliferation of dinosaurs and remaining species.

Scientists believe that the volcanic eruption caused great extinction, paving the way for dinosaurs to rise.(Graphics: Conversation).

According to scientists, volcanic activity takes place in about a million years to cause global climate change, leading to a great extinction. The missing link in the hypothesis is evidence of that global scale event.

Studying six sediment data related to the extinction event at the end of the Three-Century period, on four continents on the two hemispheres, Mather and his colleagues discovered a rise in mercury levels, which were produced by spraying. volcanic movement due to sediment samples in Morocco contains volcanic rocks from large lava layers (CAMP).

CAMP was born after a series of strong volcanic eruptions on the supercontinent Pangea, which existed in the Middle Ages, which contained all the continents today before breaking up about 200 million years ago.

The high concentration of mercury was also discovered between sediments related to the great extinction event and the sediment layer marking the beginning of the Jurassic period, which took place about 100,000-200,000 years later.

The appropriateness of the amount of mercury released into the atmosphere and settling into sediments with the rise of CO2 in the atmosphere at the time, reinforces the previous hypothesis that CO ₂ causes the Great extinction at the end of the Tam Diep century was born from volcanoes.

Modern volcanic eruptions emit large amounts of SO ₂ , CO ₂ and mercury. Mercury can survive and travel in the atmosphere for 6-24 months before settling into sediments on lakes, rivers and seas.