The use of the zonal-block model earth's crust for construction regional tectonic schemes and sections based on a complex geological geophysical data makes it possible to consider resulting maps as models. main elements such models are blocks with an ancient continental base interblock zones formed by complexes island arcs, accretionary prism, or oceanic crust. developed geotectonic Sea Okhotsk...

The total amount of CO2 released at Ischia Island has been estimated from soil gas flux measurements and from chemical composition of the gases released by fumaroles or dissolved in groundwaters. The preliminary results indicate an overall CO2 output of about 15 kg s –1 from the entire island (46 km2). The main contribution to the total output from diffuse soil degassing is about 14.8 kg s–1, f...

Early studies on Melanesian mountain systems provided insights for fundamental evolutionary and ecological concepts. These island-like systems are thought to provide opportunities in the form of newly formed, competition-free niches. Here we show that a hyperdiverse radiation of freshwater arthropods originated in the emerging central New Guinea orogen, out of Australia, about 10 million years ...

High attenuation of short-period body waves and extremely low surface-wave group velocities have been found for seismic paths that traverse the crust and upper mantle beneath the concave side of the Lesser Antilles island arc (eastern Caribbean). The observations can be explained in terms of the currently accepted models of lithospheric plate subduction at other island arcs such as Fiji-Tonga, ...