Reading The Archive Of Earth S Oxygenation
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Reading the Archive of Earth’s Oxygenation
Author: Victor Melezhik
language: en
Publisher: Springer Science & Business Media
Release Date: 2012-09-28
Earth’s present-day environments are the outcome of a 4.5 billion year period of evolution reflecting the interaction of global-scale geological and biological processes. Punctuating that evolution were several extraordinary events and episodes that perturbed the entire Earth system and led to the creation of new environmental conditions, sometimes even to fundamental changes in how planet Earth operated. Volume 3: Global Events and the Fennoscandian Arctic Russia - Drilling Earth Project represents another kind of illustrated journey through the early Palaeoproterozoic, provided by syntheses, reviews and summaries of the current state of our understanding of a series of global events that resulted in a fundamental change of the Earth System from an anoxic to an oxic state. The book discusses traces of life, possible causes for the Huronian-age glaciations, addresses radical changes in carbon, sulphur and phosphorus cycles during the Palaeoproterozoic, and provides a comprehensive description and a rich photo-documentation of the early Palaeoproterozoic supergiant, petrified oil-field. Terrestrial environments are characterised through a critical review of available data on weathered and calichified surfaces and travertine deposits. Potential implementation of Ca, Mg, Sr, Fe, Mo, U and Re-Os isotope systems for deciphering Palaeoproterozoic seawater chemistry and a change in the redox-state of water and sedimentary columns are discussed. The volume considers in detail the definition of the oxic atmosphere, possible causes for the oxygen rise, and considers the oxidation of terrestrial environment not as a single event, but a slow-motion process lasting over hundreds of millions of years. Finally, the book provides a roadmap as to how the FAR-DEEP cores may facilitate future interesting science and provide a new foundation for education in earth-science community. Welcome to the illustrative journey through one of the most exciting periods of planet Earth!
Ancient Supercontinents and the Paleogeography of Earth
Ancient Supercontinents and the Paleogeography of Earth offers a systematic examination of Precambrian cratons and supercontinents. Through detailed maps of drift histories and paleogeography of each continent, this book examines topics related to Earth's tectonic evolution prior to Pangea, including plate kinematics, orogenic development, and paleoenvironments. Additionally, this book discusses the methodologies used, principally paleomagnetism and tectonostratigraphy, and addresses geophysical topics of mantle dynamics and geodynamo evolution over billions of years. Structured clearly with consistent coverage for Precambrian cratons, this book combines state-of-the-art paleomagnetic and geochronologic data to reconstruct the paleogeography of the Earth in the context of major climatic events such as global glaciations. It is an ideal, up-to-date reference for geoscientists and geographers looking for answers to questions surrounding the tectonic evolution of Earth. - Provides robust paleogeographies of Precambrian cratons based on high-quality paleomagnetic and geochronologic data and critically tested by global geological datasets - Includes links to updated databases for the Precambrian such as PALEOMAGIA and the Global Paleomagnetic Database (GPMDB) - Presents full-color maps of the drift histories of each continent as well as their paleogeographies - Discusses key questions regarding continental drift, the supercontinent cycle, and the geomagnetic dipole hypothesis and analyzes palaeography in the context of Earth's holistic evolution
Earth and Life
Author: Anne Nédélec
language: en
Publisher: Oxford University Press
Release Date: 2025-07-09
Telling the story of the four-billion-year history of Earth and life, this book attempts to answer some of our most fundamental questions: how did our Earth come to be? How did the Earth's oceans, atmosphere, and climate form? How did life begin? Following the timeline of our planet, Earth and Life takes us from the creation of planet Earth to fluctuating global environments, from floods of lava and giant meteorites to great oceans and verdant landscapes. It takes us from the first life on our planet, to the evolution of various species, including the first humans, and explains how life has always changed the climate and environment on Earth. Life originated as tiny microbes from the ocean depths, formed mysterious reefs, then the first algae, marine animals, and, finally, plants and vertebrates that invaded the continents. The vast oceans eventually started to separate, as plate tectonics built up, and broke supercontinents in an ever changing geography. Roughly two billion years ago, marine photosynthesizing bacteria began to oxygenate the oceans and atmosphere, changing the biological landscape forever, and producing giant mineral deposits. Colour burst into the continents, from grey to red due to oxidized tropical weathering, and finally to green due to the first land plants and forests. Written with expertise and illustrated with clarity, this fascinating book is based on all the most recent scientific evidence and should be widely accessible. Whether you're interested in geology, biology, or the wider natural world in general, if you are intent on understanding how Earth and life evolved, then this book explains it all.