Author: Alexander R. McBirneyPublisher: Geological Society of America
ISBN: 0813711185
Category : Geology
Languages : en
Pages : 214
Book Description
Geology and Petrology of the Galápagos Islands
Author: Alexander R. McBirneyPublisher: Geological Society of America
ISBN: 0813711185
Category : Geology
Languages : en
Pages : 214
Book Description
Geology of Galapagos, Cocos, and Easter Islands
Author: Lawrence John ChubbThe Galapagos
Author: Karen S. HarppPublisher: John Wiley & Sons
ISBN: 1118852680
Category : Science
Languages : en
Pages : 443
Book Description
The Galápagos Islands are renown for their unique flora and fauna, inspiring Charles Darwin in the elaboration of his theory of evolution. Yet in his Voyage of the Beagle, published in 1839, Darwin also remarked on the fascinating geology and volcanic origin of these enchanted Islands. Since then, the Galápagos continue to provide scientists with inspiration and invaluable information about ocean island formation and evolution, mantle plumes, and the deep Earth. Motivated by an interdisciplinary Chapman Conference held in the Islands, this AGU volume provides cross-disciplinary collection of recent research into the origin and nature of ocean islands, from their deepest roots in Earth's mantle, to volcanism, surface processes, and the interface between geology and biodiversity. Volume highlights include: Case studies in biogeographical, hydrological, and chronological perspective Understanding the connection between geological processes and biodiversity Synthesis of decades of interdisciplinary research in physical processes from surface to deep interior of the earth In-depth discussion of the concept of the island acting as a natural laboratory for earth scientists Integrated understanding of the Galápagos region from a geological perspective Collectively, The Galápagos presents case studies illustrating the Galápagos Archipelago as a dynamic natural laboratory for the earth sciences. This book would be of special interest to a multidisciplinary audience in earth sciences, including petrologists, volcanologists, geochronologists, geochemists, and geobiologists.
Geology of Galapagos, Cocos, and Easter Islands
Author: Lawrence John ChubbPublisher: Crown Publishing Group (NY)
ISBN:
Category : Science
Languages : en
Pages : 90
Book Description
Geology of Galapagos, Cocos, and Easter Islands
Author: Lawrence John ChubbPublisher:
ISBN:
Category : Geology
Languages : en
Pages : 67
Book Description
Ocean Island Volcanoes: Genesis, Evolution and Impact
Author: Adriano PimentelPublisher: Frontiers Media SA
ISBN: 288963728X
Category :
Languages : en
Pages : 180
Book Description
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.
New Publications of the U.S. Geological Survey
Author: Geological Survey (U.S.)Publisher:
ISBN:
Category : Geology
Languages : en
Pages : 400
Book Description
New Publications of the U.S. Geological Survey
Author: New Publications of the Geological Survey
Author: Geological Survey (U.S.)Publisher:
ISBN:
Category : Geology
Languages : en
Pages : 746
Book Description
Galapagos
Author: Michael Hume JacksonPublisher: University of Calgary Press
ISBN: 1895176077
Category : Nature
Languages : en
Pages : 369
Book Description
This book details the natural history of the plants and animals found in the Galapagos Islands. A list of the dominant plants according to vegetation zone is included. Of particular note is the discussion of the problems of colonisation by founding populations, biological evolution, and ecology, and of the evolutionary processes bringing about species diversity.