Volcanoes In The Sea

Well written and superbly illustrated, this work includes chapters on tectonic plates, volcanoes, erosion by water and wind, the ocean, ice and glaciers, earthquakes and tsunamis.

Well written and superbly illustrated, this work includes chapters on tectonic plates, volcanoes, erosion by water and wind, the ocean, ice and glaciers, earthquakes and tsunamis.

For more than four decades, biblical experts have tried to place the story of Exodus into historical context--without success. What could explain the Nile turning to blood, insects swarming the land, and the sky falling to darkness? Integrating biblical accounts with substantive archaeological evidence, The Parting of the Sea looks at how natural phenomena shaped the stories of Exodus, the Sojourn in the Wilderness, and the Israelite conquest of Canaan. Barbara Sivertsen demonstrates that the Exodus was in fact two separate exoduses both triggered by volcanic eruptions--and provides scientific explanations for the ten plagues and the parting of the Red Sea. Over time, Israelite oral tradition combined these events into the Exodus narrative known today. Skillfully unifying textual and archaeological records with details of ancient geological events, Sivertsen shows how the first exodus followed a 1628 B.C.E Minoan eruption that produced all but one of the first nine plagues. The second exodus followed an eruption of a volcano off the Aegean island of Yali almost two centuries later, creating the tenth plague of darkness and a series of tsunamis that "parted the sea" and drowned the pursuing Egyptian army. Sivertsen's brilliant account explains inconsistencies in the biblical story, fits chronologically with the conquest of Jericho, and confirms that the Israelites were in Canaan before the end of the sixteenth century B.C.E. In examining oral traditions and how these practices absorb and process geological details through storytelling, The Parting of the Sea reveals how powerful historical narratives are transformed into myth.

This exceptionally well-illustrated book at a high scientific level describes mud volcanism as a complex, multidimensional phenomenon requiring multidisciplinary study. Mud volcanoes can be used as “cheap windows” to search for gas-hydrates and other mineral resources in the Black Sea region. Nothing similar has been published before, and as one of its unique features the book includes a vast amount of new data unavailable so far to the western reader. The book includes new data on driving forces, mechanisms, origin, geological and geomorphological features of mud volcanoes as well as new data on composition of solid, gaseous, and liquid components of erupted material. It covers a wide geographic region, and its subjects range from geological to environmental to industrial applications.

Ocean island volcanoes constitute some of the most prominent and rapidly-formed features on Earth, and yet they cannot be explained by conventional plate tectonics. Although typically associated with intraplate settings (hotspots), these volcanoes also occur in different geodynamic settings (near mid-ocean ridges). The nature of ocean island magmatism is still the subject of intense debate within the geological community. Traditionally it has been linked to the presence of mantle plumes at depth (e.g. Hawaii), although the interaction with plate tectonics is also recognized to play a significant role (e.g. Azores, Galápagos). Magma compositions may range from basaltic to more differentiated, which consequently is accompanied by striking changes in the eruption style from effusive-dominated to highly explosive volcanism. Understanding how these magmas evolve and how volcanic processes act at ocean island volcanoes are key issues of modern volcanology. Moreover, the growth of ocean island volcanoes from their rise on the seafloor as seamounts, to island emergence and subsequent formation of shield volcanoes (and in some cases large caldera volcanoes) is governed by multiple interrelated changes. It is well known that competing processes model ocean island volcanoes during alternating and/or coeval periods of construction and destruction. The geological evolution of these volcanoes results from the balance among volcanism, intrusions, tectonics, subsidence/uplift, mass wasting, sedimentation, and subaerial and wave erosion. A better knowledge of the interplay between these processes is crucial to obtain a more comprehensive understanding of the evolution of such volcanoes, and to the eventual formulation of a unified model for ocean island evolution. Ocean islands are especially vulnerable to volcanic eruptions and other geological hazards on account of their typical small size, rough topography and isolation, which make risk management and evacuation difficult. Volcanic eruptions, in particular, may have a significant impact on local populations, infrastructures, economy and even on the global climate. It is therefore fundamental to monitor these volcanoes with complementary geophysical, geodetic and geochemical techniques in order to forecast future eruptions and their impacts. However, the assessment of volcanic hazards on ocean islands is challenging due to the large variety of phenomena involved (e.g. lava flows, tephra fallout, pyroclastic density currents, lahars, gas emissions). Different approaches are used to assess volcanic hazards, either based on empirical methods or sophisticated numerical models, focusing on a single phenomenon or the combination of different hazards. This Frontiers Research Topic aims to promote discussion within the scientific community, representing an important step forward in our knowledge of ocean island volcanoes in order to serve as a reference for future research.

Evidence and logic are lacking in many areas of public debate today on hot-button issues ranging from dietary fat to vaccination. In Science Under Attack, Dr. Alexander shows how science is being abused, sidelined or ignored, making it difficult or impossible for the public to form a reasoned opinion about important issues. Readers will learn why science is becoming more corrupt, and also how it is being abused for political and economic gain, support of activism, or the propping up of religious beliefs. To illustrate how science is being ignored and abused, the author examines six different issues and the way they are currently discussed: evolution, dietary fat, climate change, vaccination, GMO crops and continental drift. In his research, he has gone back to the original source wherever possible rather than quoting second-hand sources, adding a degree of accuracy and nuance often missing. The controversial assertion that science does not support the conventional wisdom on climate change should be of particular interest. Alexander shows that the scientific evidence for a substantial human contribution to climate change is actually flimsy, and he demonstrates the fallacy of comparing the strong link between smoking and lung cancer to the much weaker connection between human activity and global warming.