Les volcans, bien qu'ils soient des object d'investigations passionnants pour les volcanologues, demeurent avant tout des dangers pour les populations.
A I'heure actuelle, I'Indonesie possede 129 volcans en activite. Ces derniers se succendent depuis I'ile de Sumatra jusqu'aux Celebes et a la mer de Banda.
A study of the product of hydromagmatic activity and their associated xenoliths has been made on the recent volcanic centres on the island of Flores and Faila, in the Azores, in order to define the geothermal context.
The Idjen caldera is classed as a Krakatoa type or stratocone caldera and is characterized by a caldera floor, a caldera escarpment, and older volcanic forms. The caldera diameter rangers from 14 by 16 km at the rim to 11 14 km at the floor with a maximum depth of 709m.
Penginderaan jauh telah lama dikenal sebagau suatu alat untuk analisis di gunungapi aktif dan berbahaya karena dapat meningkatkan pemahaman kita tentang proses yang mendasari aktivitas gunung berapi sehingga memungkinkan kita untuk menerapkan pemahaman ini dalam pengurangan risiko erupsi gunungapi. Disertasi ini menyajikan studi vulkanologi menggunakan citra satelit optik resolusi tinggi (IKINO…
This thesis presents the results of a geochemical study of the Banda Arc (East Indonesia) where magma genesis is influenced by subducted source components that are controlled by an active arc-continent collision. The main objective of this study is to investigate the role of subducted continental material on the magma genesis using isotopic and chemical compositions of samples from volcanoes an…
Sedimentary basins are well studied topic in geology, much is known about the setting in which they form, and the different type of basing fills. Less is know about basin early on in Earth history, particularly in the early Archens.
This thesis presents the results of a petrological-geochemical and stratigraphic study of the calc-alkaline lava from Santorini, Aegean Sea, Greece. The volcanic complex of Santorini consists of seven eruption centres, of which some have been active contemporaneous.
This thesis presents the results of a details trace element and isotope geochemistry study int the magma-genesis of volcanoes in the Adonara-Pantar Section (APS) of the East Sunda Arc in Indonesia, a setting where an oceanic island arc is colling with a passive continental margin.
This study was part of a cooperative project with the Indonesian Institute of Sciences, Bandung, Java, the Michigan Technological University group (W.I Rose, Jr., principle investigator) and the Hawaii Institute of Geophysics, University of Hawaii group (G.P.L. Walker, principle investigator).