Sten, mineraler og fossiler: for alment interesserede læsere

A GUIDE TO AUSTRALIAN ROCKS, FOSSILS AND LANDSCAPES is a collection of stand-alone explanations of more than 200 different geological features found in Australia. The features vary in size from the Great Barrier Reef and the Great Artesian Basin down to the various London Bridges of New South Wales, Victoria and West Australia..

A geological saga that digs deep, revealing how even the most ordinary rocks can be stepping stones to the hidden history of our planet.--

Explore Earth's natural treasures, from their primeval origins to traditional uses and modern-day appeal with this illustrated guide to rocks, minerals, crystals, gems and more!Featuring sparkling crystals, vibrant gemstones, and other precious materials often prized for their beauty, such as amber, coral, and fossils, this illustrated guide is sure to captivate every rockhound and budding gemmologist. Learn how to identify more than 450 rock and mineral specimens through beautiful photographs and key characteristics. Discover more about rocks and minerals through folklore and historical artefacts, and find out the fascinating stories behind some of the amazing natural treasures, including the Hope Diamond and the Great Mogul emerald. Plus there is information on polishing and displaying your finds to further equip you with all the knowledge needed to become a rock and mineral collector.Dive deep into this riveting book on rocks and minerals to further discover:- Comprehensive coverage of more than 450 specimens of rocks, minerals, crystals, gems and fossils.- Expert text and high-quality images combine to make this an indispensable reference tool for every rockhound and budding gemmologist.- Detailed reference panels provide key at-a-glance information for identifying specimens.- Feature panels on folklore, historical artefacts, and famous gems tell the fascinating stories of rocks and minerals.- Includes information on collecting and showing rocks and minerals.Practical advice on cutting, polishing, and displaying your finds further equips you with all the knowledge needed to delve into the arena of rock and mineral collecting.SI Rock and Gem was produced in association with the Smithsonian in Washington, DC, the world's largest museum complex, ensuring the guide's accuracy.

New from the author of the acclaimed bestseller The Rise and Fall of the Dinosaurs (?A masterpiece of science writing.? ?Washington Post) and ?one of the stars of modern paleontology? (National Geographic), a sweeping and revelatory history of mammals, illuminating the lost story of the extraordinary family tree that led to us.We humans are the inheritors of a dynasty that has reigned over the planet for nearly 66 million years, through fiery cataclysm and ice ages: the mammals. Our lineage includes saber-toothed tigers, woolly mammoths, armadillos the size of a car, cave bears three times the weight of a grizzly, clever scurriers that outlasted Tyrannosaurus rex, and even other types of humans, like Neanderthals. Indeed humankind and many of the beloved fellow mammals we share the planet with today?lions, whales, dogs?represent only the few survivors of a sprawling and astonishing family tree that has been pruned by time and mass extinctions. How did we get here?In his acclaimed bestseller The Rise and Fall of the Dinosaurs?hailed as ?the ultimate dinosaur biography? by Scientific American?American paleontologist Steve Brusatte enchanted readers with his definitive history of the dinosaurs. Now, picking up the narrative in the ashes of the extinction event that doomed T-rex and its kind, Brusatte explores the remarkable story of the family of animals that inherited the Earth?mammals? and brilliantly reveals that their story is every bit as fascinating and complex as that of the dinosaurs.Beginning with the earliest days of our lineage some 325 million years ago, Brusatte charts how mammals survived the asteroid that claimed the dinosaurs and made the world their own, becoming the astonishingly diverse range of animals that dominate today's Earth. Brusatte also brings alive the lost worlds mammals inhabited through time, from ice ages to volcanic catastrophes. Entwined in this story is the detective work he and other scientists have done to piece together our understanding using fossil clues and cutting-edge technology.A sterling example of scientific storytelling by one of our finest young researchers, The Rise and Reign of the Mammals illustrates how this incredible history laid the foundation for today's world, for us, and our future.