Les hommes ont longtemps cru que les volcans etaient des montagnes qui brulent en emettant de grandes flammes et de la fumee. Les flammes son ten fait des fontaines de lave en fusion ou la reflexion de celles ci sur des pansches volcaniques.
Indonesia is formed by the interaction of three large plates producing volcanic paths magmatic pathways and sediment deposits, as well as forming geological diversity and geological heritage that are potential to be developed into geotourism and geopark areas. Whitin a period of 800 years, Indonesia has produced three caldera with a diameter 7km (Rinjani, Tambora and Krakatau).
With the threat of depletion of conventional sources of energy there has been increased interest in harnessing geothermal energy for man’s use in many countries. However, there as comparatively few people with wide experience in the science and technology of developing this new energy resources.
The current energy crisis has generated an increased interest in alternate source of energy. Resources such as geothermal, solar, and ocean thermal are being actively considered for wide-spread development in the United States and many other countries throughout the world.
Geothermics can be defined as the study of the temperature distribution in the earth and the phenomena which influence that distribution. At the earth’s surface and in the atmosphere, complex meteorological events occur which are strongly influenced by temperature. These phenomena will only be mentioned briefly.
The eminent volcanologist T.A. Jaggar in no way exaggerated the significance of volcanic phenomena when je stated that his conception of volcanicity was of a process which is everywhere at work within and beneath the earth’s crust. Today there are more than 500 volcanoes which are still active or at which activity has been recorded during historic times, while the number of extinct volcanoes,…
The outflow of heat from the Earth’s interior, the terrestrial heat flow, and the temperature field at depth are determined by deep-seated tectonic processes. The knowledge of the regional heat flow patterns is thus very important in geophysics and provides a useful tool for studying crustal and lithospheric structures and for understanding the nature of their evolution.
Jika anda seorang pemerhati gunung, yang gemar mendaki dan menikmati indahnya panorama ciptaan Yang Maha Kuasa, tentu gunungapi Rinjani, Tambora dan Sangeangapi taka sing lagi terdengar di telinga anda, namun bila belum pernah mendaki salah satu diantaranya maka kami berharap tulisan ini mampu menggugah rasa keingintahuan anda tentang gunungapi, yang sudah barang tentu pada akhirnya anda akan m…
Much of the recent progress in the solid Earth Sciences is based on the interpretation of a range of geophysical and geological observations in terms of the properties and deformation of Earth materials. One of the greatest challenges facing geoscientists in achieving this lies in finding a link between physical processes operating in minerals at the smallest length scales to geodynamic phenome…
The aim of this book is to prevent a comprehensive survey of available energy resources and the technologies by which they can be exploited. It is intended for graduate and advanced undergraduated students of physical sciences, engineering, and environmental studies, and also for specialists within the energy industries who wish to become acquinted with sectors other than their own.