検索キーワード： 地質学

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.

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.

Earth has been reinventing itself for more than four billion years, keeping a record of its experiments in the form of rocks. Yet most of us live our lives on the planet with no idea of its extraordinary history, unable to interpret the language of the rocks that surround us. Geologist Marcia Bjornerud believes that our lives can be enriched by understanding our heritage on this old and creative planet. Contrary to their reputation, rocks have eventful lives—and they intersect with our own in surprising ways.

Marcia Bjornerud's life as a geologist has coincided with an extraordinary period of discovery. From an insular girlhood in rural Wisconsin, she found her way to an unlikely career studying mountains in remote parts of the world. As one of few women in her field, she witnessed the shift in our understanding of the Earth, from solid object to an entity in a constant state of transformation. In the most tumultuous times of her own life, a deep understanding of our rocky planet imbued her life with meaning.

Principles of Geology [1830] is a groundbreaking classic of science. Mentioned in Charles Darwin's Origin of Species, glowingly, it captivated such contemporaries as Melville, Emerson, Tennyson, and George Eliot. It is now here for a new generation interested in Earth Science, climate and sustainability.

I tragici e recenti avvenimenti della guerra che sta scuotendo l’Europa e il mondo intero hanno messo in crisi tutto ciò che fino a poco tempo fa consideravamo una certezza: non solo la pace, ma anche la disponibilità delle materie prime, e quindi il loro reperimento e stoccaggio, lasciandoci con quesiti importanti sul futuro energetico. In questa nuova pubblicazione, Andrea Moccia ci darà gli strumenti per conoscere la materia, capire quali sono le armi a nostra disposizione per combattere la profonda crisi energetica in corso e rispondere alle domande che quest’ultima ha sollevato nell’opinione pubblica.

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.

Rocks and mountains have withstood aeons of life on our planet - gradually eroding, dissolving, recycling, shifting, solidifying, and weathering. We might spend a little less time on earth, but humans are also weathering: evolving and changing as we're transformed by the shifting climates of our lives and experiences. So, what might these ancient natural forms have to teach us about resilience and change?

Stone walls tell nothing less than the story of how New England was formed, and in Robert Thorson's hands they live and breathe. Millions of years ago, New England's stones belonged to ancient mountains thrust up by prehistoric collisions between continents. Buried again over centuries by forest and soil buildup, the stones gradually worked their way back to the surface, only to become impediments to the farmers cultivating the land in the eighteenth century, who piled them into "linear landfills," a place to hold the stones.

Lapidarium weaves the surprising stories of the 60 most fascinating stones into a rich cultural history: from the red ground hematite pigment our cave-painting ancestors used and the mystery behind the tuff Easter Island heads, to the columbite that caused the Playstation War and the intriguing history of the cairngorm crystal ball, to the scandalous story of Flint Jack, whose forgeries still populate many museums in the UK today.

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.

Go on an outdoor treasure hunt and enjoy all nature has to offer with this field guide to rockhounding, perfect for armchair geologists or anyone headed out on an adventure! Geology meets treasure hunting with this field guide to rockhounding! If you've ever kept an interesting rock or shell, bought a polished stone from a gift shop, or even just enjoyed a 'gram of a really cool crystal, congratulations! You've already experienced a rockhounding adventure!

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.

To many of us, the Earth's crust is a relic of ancient, unknowable history. But to a geologist, stones are richly illustrated narratives, telling gothic tales of cataclysm and reincarnation. For more than four billion years, in beach sand, granite, and garnet schists, the planet has kept a rich and idiosyncratic journal of its past. Fulbright Scholar Marcia Bjornerud takes the listener along on an eye-opening tour of Deep Time, explaining in elegant prose what we see and feel beneath our feet.

Adventures in Volcanoland charts journeys across deserts, through jungles and up ice caps, to some of the world's most important volcanoes, from Nicaragua to Hawaii, Santorini to Ethiopia, exploring Tamsin Mather's obsession with these momentous geological formations, the cultural and religious roles they have played in the minds of those living around them at different times throughout history, and the science behind their formation and eruptions.

Rocks & Minerals is a compact field guide to 50 varieties of rocks and minerals. Inside this book, you’ll find profiles on individual specimens, each showcasing characteristics, chemical composition, origins, and key identifiers. From beautiful gemstones to sparkling geodes and incredible volcanic formations, this visually stunning guide is an engrossing overview of natural environments. Use this book to learn tips for building your own collection.

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.

Sempre intenti a "riveder le stelle", per citare il Sommo Poeta, ma ci siamo mai interessati veramente a quanto accade invece sotto i nostri piedi? La risposta è sì, ovviamente, ed è proprio quello che fanno i geologi: studiano la Terra! Eppure, in chi non la conosce, la geologia è una scienza che evoca spesso, e ingiustamente, un sapore stantio. Un luogo comune che il nostro geologo preferito, Andrea Moccia, autore del progetto divulgativo "Geopop", si è proposto di sfatare in questo libro.

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.

Travelling a thousand miles and across three billion years, Christopher Somerville (walking correspondent of The Times and author of Coast, The January Man and Ships of Heaven) sets out to interrogate the land beneath our feet, and how it has affected every aspect of human history from farming to house construction, the Industrial Revolution to the current climate crisis. In his thousand-mile journey, Somerville follows the story of Britain's unique geology, travelling from the three-billion-year-old rocks of the Isle of Lewis, to the furthest corner of Essex.