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 question first considered by Wegener concerning the nature of the processes in the Earth bringing about continental drift and sea-floor spreading (or major displacements of the litosphere) in the last 100-200 myr, is probably the most important one in geoscience at the present time. The concept of plate tectonics has integrated the evidence for continental drift, sea-floor spreading and glo…
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,…
Das Antlitz der Erde, or “The Face of the Earth”, was the title of the first great magnum opus on the gross surface features of the earth by Eduard Suess late last century. A recent British television documentary with the same purpose bore the same title.
The impetus for publishing this set of articles was the realization that, year after year. I and my students at Stanford were making copies (with varying degrees of legibility and legality) of the same classic articles on plate tectonics and geomagnetic reversals. At first we did this because there was so little material on the subject available.
The tectonic concept known as seafloor spreading , global tectonics and also as plate tectonics began engulfing the geological community in the early sixties. Within less than a decade this unifying, geotectonic hypothesis beame widely known, and judging from the current literature, it has also been widely accepted.
This book is a collection of Prof. Dr. John Ario Katili publications from various international journals about Indonesian tectonic and resources. The idea of producing this book was stated on the way to Islamic World Academic of Science Conference, Ankara, Turkey, 2006 when Prof. Dr. Ir. John Ario Katili showed his worries concerning the development of geology in Indonesia, mostly because there…
The origin of the Banda Sea region is critical to the tectonic development of eastern Indonesia. The purpose of this study is to synthesize the existing geological and geophysical data into a tectonic model of the Banda Sea Region, as an example of a marginal basin developed within and active arc-continent collision.
The tectonic earthquakes may cause an increase in volcanic activity due to stress change. Volcano eruption is driven by internal and external forces. The initiating mechanisms of volcanic eruptions commonly include buoyancy, differentiation and vesiculation, injection of hot mafic magma into cooler evolved resident magma.
Kami mengestimasi struktur kecepatan tiga dimensi gelompabng P (Vp), kecepatan gelombang S (Vs) serta rasio Vp/Vs di bawah permukaan Gunung Sinabung, Kabupaten Karo, Sumatera Utara. Gunung Sinabung termasuk ke adalam tipe B, yaitu gunungapi yang tidak ada aktivitas vulkanik lebih dari 400 tahun. Aktivitas kegempaan Gunung Sinabung mengalami peningkatan kembali pada Juli 2013, diikuti serangkaia…