Catastrophes and Lesser Calamities: The Causes of M... by Hallam, Tony PaperbackFREE US DELIVERY | ISBN: 0192806688 | Quality Books

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Catastrophes and Lesser Calamities: The Causes of M... by Hallam, Tony Paperback. Catastrophes and Lesser Calamities: The Causes of Mass Extinctions. Author:Hallam, Tony. The most famous is the mass extinction that happened about 65 million years ago, and that caused the death of the dinosaurs. Can't find what you're looking for? Home page About us Feedback Payment Delivery Customer Service Contact us Shop by Price $10.34 $10.35 - $12.34 $12.35 - $14.34 $14.35 - $16.34 $16.35+ Shop pages Home page Payment Delivery Customer Service About the seller Need help? Send an eBay message Newsletter Add World of Books to your favourites and receive email newsletters about special promotions! General Interest Catastrophes and Lesser Calamities: The Causes of Mass Extinctions Product Details: Category: Books ISBN: 0192806688 Title: Catastrophes and Lesser Calamities: The Causes of Mass Extinctions The Fast Free Shipping Author: Hallam, Tony Publisher: Oxford University Press Year Published: 2005 Number of Pages: 240 Book Binding: Paperback / softback Prizes: Book Condition: VERYGOOD SKU: GOR001884086 Item description This is a book about the dramatic periods in the Earth's history called mass extinctions - short periods (by geological standards) when life nearly died out on Earth. The most famous is the mass extinction that happened about 65 million years ago, and that caused the death of the dinosaurs. But that was not the worst mass extinction: that honour goes to the extinction at the end of the Permian Period, about 250 million years ago, when over 90% of life is thought to have become extinct. What caused these catastrophes? Was it the effects of a massive meteorite impact? There is evidence for such an impact about 65 million years ago. Or was it a period of massive volcanic activity? There is evidence in the rocks of huge lava flows at periods that match several of the mass extinctions. Was it something to do with climate change and sea level? Or was it a combination of some or all of these? The question has been haunting geologists for a number of years, and it forms one of the most exciting areas of research in geology today. In this book, Tony Hallam, a distinguished geologist and writer, looks at all the different theories and also what the study of mass extinctions might tell us about the future. If climate change is a key factor, we may well, as some scientists have suggested, be in a period of mass extinction of our own making. Please note, the image is for illustrative purposes only, actual book cover, binding and edition may vary. 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