Mostrando títulos en Geología

The proposal that the impact of humanity on the planet has left a distinct footprint, even on the scale of geological time, has recently gained much ground. Global climate change, shifting global cycles of the weather, widespread pollution, radioactive fallout, plastic accumulation, species invasions, the mass extinction of species-these are just some of the many indicators that we will leave a lasting record in rock, the scientific basis for recognizing new time intervals in Earth's history. The Anthropocene, as the proposed new epoch has been named, is regularly in the news.

The early history of Earth covers such vast stretches of time that years, centuries, and even millennia become virtually meaningless. Instead, paleontologists and scientists who study geochronology divide time into periods and eras. What humans commonly refer to as the “Ice Age” is actually a series of fluctuating climate events that have occurred throughout the planet’s history. These ongoing historical phenomena are difficult to conceptualize because of both the time frame involved and the natural process by which they cyclically unfold.

End Times is a compelling work of skilled reportage that peels back the layers of complexity around the unthinkable - and inevitable - end of humankind. From asteroids and artificial intelligence to volcanic supereruption to nuclear war, veteran science reporter and TIME editor Bryan Walsh provides a stunning panoramic view of the most catastrophic threats to the human race.

Scientists have long attempted to understand Earth’s past, and in service to that effort, they have divided the world’s history into eons, eras, periods, epochs, and ages. For example, the current eon is called the Phanerozoic Eon, which means “visible life”. This is the eon in which multicellular life has evolved and thrived. Before this, life was microscopic (single cells).

You've heard of Pangea, the single landmass that broke apart some 175 million years ago to give us our current continents, but what about its predecessors, Rodinia or Columbia? These "supercontinents" from Earth's past provide evidence that land repeatedly joins and separates. While scientists debate what that next supercontinent will look like—and what to name it—they all agree: one is coming.

Aluminum is the most abundant metal in the earth’s crust. It is also ubiquitous in the modern world, from aircraft to soda cans. A dizzying number of consumer and industrial products employ aluminum, typically alloyed, because of its availability, versatility, and malleability. Today, how efficiently we use—and reuse—aluminum is vital to addressing key environmental challenges and understanding humanity’s fraught relationship with the earth.

Rare Earth Frontiers is a work of human geography that serves to demystify the powerful elements that make possible the miniaturization of electronics, green energy and medical technologies, and essential telecommunications and defense systems. Julie Michelle Klinger draws attention to the fact that the rare earths we rely on most are as common as copper or lead, and this means the implications of their extraction are global. Klinger excavates the rich historical origins and ongoing ramifications of the quest to mine rare earths in ever more impossible places.

The volcano - among the most familiar and perhaps the most terrifying of all geological phenomena. However, Earth isn't the only planet to harbour volcanoes. In fact, the solar system, and probably the entire universe, is littered with them. Our own Moon, which is now a dormant piece of rock, had lava flowing across its surface billions of years ago, while Mars can be credited with the largest volcano in the solar system.

Humans depend on soil for 95 percent of global food production, yet let it erode at unsustainable rates. In the United States, China, and India, vast tracts of farmland will be barren of topsoil within this century. The combination of intensifying erosion caused by climate change and the increasing food needs of a growing world population is creating a desperate need for solutions to this crisis.

In an easy conversational style, The Restless Northwest provides a brief overview of the remarkable geological processes that have shaped the Pacific Northwest. The narrative is also sprinkled with firsthand accounts of the people involved in recent exciting, scientific discoveries. Williams enlivens this story of long-ago geologic events, with a variety of fascinating asides, on everything from enormous undersea tubeworms, to the Willamette meteorite.

Antarctica, the ice kingdom hosting the South Pole, looms large in the human imagination. The secrets of this vast frozen desert have long tempted explorers, but its brutal climate and glacial shores notoriously resist human intrusion. Land of Wondrous Cold tells a gripping story of the pioneering 19th-century voyages, when British, French, and American commanders raced to penetrate Antarctica’s glacial rim for unknown lands beyond. These intrepid Victorian explorers laid the foundation for our current understanding of Terra Australis Incognita.

Devastating natural disasters have profoundly shaped human history, leaving us with a respect for the mighty power of the Earth - and a humbling view of our future. Paleontologist and geologist Donald R. Prothero tells the harrowing human stories behind these catastrophic events.

In the middle of New York City lies a neighborhood where all secrets are valuable, all assets are liquid, and all deals are sealed with a blessing rather than a contract. Welcome to the diamond district. Ninety percent of all diamonds that enter America pass through these few blocks, but the inner workings of this mysterious world are known only to the people who inhabit it.

The international best-selling author of The Professor and the Madman and Krakatoa vividly brings to life the 1906 San Francisco Earthquake that leveled a city symbolic of America's relentless western expansion. Simon Winchester has also fashioned an enthralling and informative informative look at the tumultuous subterranean world that produces earthquakes, the planet's most sudden and destructive force.

Our DANTES study guides are different! The Introduction to Geology DANTES/DSST Study Guide teaches you everything that you need to know to pass the DSST test. This study guide is more than just sample test questions. Our easy-to-understand study guide will teach you the information. We've condensed what you need to know into a manageable book—one that will leave you completely prepared to tackle the test.

Four geologists and two mountain guides face the brutal beauty of West Antarctica eight hundred miles from the United States main base. Their search reaches far into the treacherous mountains of Marie Byrd Land. Over six weeks of living in tents and traveling by snowmobile, the team endures endless cold and furious blizzards. They cross ice fields and hidden crevasses, which one of the team learns about the hard way.

This Introduction audiobook explores emerging geological research and explains how new advances in the understanding of plate tectonics, seismology, and satellite imagery have enabled us to begin to see the Earth as it actually is: dynamic and ever-changing.

Matthew Hart embarks on a journey into the largely hidden and fascinating world that is the diamond trade. The geology of diamonds explains how hard it is to find them. They are accidents of nature, carbon crystals compressed underground for eons. Weaving science and history, Hart follows the diamond trail from the basement where Gabi Tolkowsky, the world's greatest cutter, faced the 599-carat Centenary diamond, to Africa's Diamond Coast, to the sales rooms of De Beers.

More than half a billion years ago, our world was completely covered by glaciers, a "Snowball Earth" that persisted for millions of years. Incredibly, this unimaginable cold led to the remarkable diversification of life on earth known as the Cambrian explosion. With a geologist's eye and a knack for storytelling, Graham Shields explores when and how such inhospitable conditions enabled animals to evolve, radiate, and diversify into our earliest ancestors.

Glaciers: The Politics of Ice is a scientific, cultural, and political examination of the cryosphere - the earth's ice - and the environmental policies that aim to protect it. Jorge Daniel Taillant discusses the debates and negotiations behind the passing of the world's first glacier protection law in the mid-2000s and reveals the tension between the industry experts, politicians, and glacier conservationists.