விரிவுரையாளர் இல் பூமி அறிவியல் News Today : Breaking News, Live Updates & Top Stories | Vimarsana

Stay updated with breaking news from விரிவுரையாளர் இல் பூமி அறிவியல். Get real-time updates on events, politics, business, and more. Visit us for reliable news and exclusive interviews.

Top News In விரிவுரையாளர் இல் பூமி அறிவியல் Today - Breaking & Trending Today

Research aims to unlock secrets of magma transport below the ocean floor

MIL-OSI Global: Scientists have found dust from the asteroid that wiped out the dinosaurs inside the crater it left


Source: The Conversation – UK – By Queenie Hoi Shan Chan, Lecturer in Earth Sciences, Royal Holloway
More than 99% of all organisms that have ever lived on Earth are now extinct. Most of these just died out quietly. However, in Earth’s history there have been five major mass extinction events – known as the big five – during which many species became extinct at the same time.
Each of the big five events caused at least a 40% loss of all species on Earth. Yet humans hold a particular grudge against the most recent one, which brought a sudden end to the 160-million-year history of the dinosaurs. This was the Cretaceous-Paleogene extinction and it happened 66 million years ago, wiping out about 75% of all species on Earth at the time. Except sea turtles and crocodiles, no four-legged animals bigger than 25kg survived. ....

United States , United Kingdom , Queenie Hoi Shan Chan , Lecturer In Earth Sciences , Earth Sciences , Deccan Traps , Siberian Traps , ஒன்றுபட்டது மாநிலங்களில் , ஒன்றுபட்டது கிஂக்டம் , ராணி ஹோய் ஷான் சான் , விரிவுரையாளர் இல் பூமி அறிவியல் , பூமி அறிவியல் , டெக்கான் பொறிகளை , சைபீரியன் பொறிகளை ,