Jan Zalasiewicz, professeur de paléobiologie à l'Université de Leicester, se penche sur l'Anthropocène.
Jan Zalasiewicz est professeur de paléobiologie à l'Université de Leicester, au Royaume-Uni. Au début de sa carrière, il était géologue de terrain et paléontologue au British Geological Survey, travaillant à déchiffrer les strates de l'est de l'Angleterre, puis les montagnes du centre du Pays de Galles. Maintenant, il enseigne la géologie et l'histoire de la Terre aux étudiants de premier cycle et de troisième cycle, et étudie les écosystèmes et les environnements fossiles sur plus d'un demi-milliard d'années de temps géologique. Au cours des dernières années, il a participé à l'élaboration d'idées sur l'Anthropocène, le concept selon lequel les humains dirigent désormais une grande partie de la géologie à la surface de la Terre, et préside le Groupe de travail sur l'Anthropocène de la Commission internationale de stratigraphie.
Volcanoes (A very short Introduction) pdf par Jan Zalasiewicz
Volcanoes are some of the most dramatic expressions of the powerful tectonic forces at work in the Earth beneath our feet. But volcanism, a profoundly important feature of Earth, and indeed of other planets and moons too, encompasses much more than just volcanoes themselves. On a planetary
scale, volcanism is an indispensable heat release mechanism, which on Earth allows the conditions for life. IIt releases gases into the atmosphere and produces enormous volumes of rock, and spectacular landscapes - landscapes which, during major eruptions, can be completely reshaped in a matter of
hours. Through geological time volcanism has shaped both climate and biological evolution, and volcanoes can affect human life, too, for both good and ill. Yet, even after much study, some of the fundamental aspects of volcanicity remain mysterious.
This Very Short Introduction takes the readers into the inferno of a racing pyroclastic current, and the heart of a moving lava flow, as understood through the latest scientific research. Exploring how volcanologists forensically decipher how volcanoes work, Michael Branney and Jan Zalasiewicz
explain what we do (and don't) understood about the fundamental mechanisms of volcanism, and consider how volcanoes interact with other physical processes on the Earth, with life, and with human society.
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