Most flank eruptions within a central stratovolcano are triggered by lateral draining of magma from its central conduit, and only few eruptions appear to be independent of the central conduit. In order to better highlight the dynamics of flank eruptions in a central stratovolcano, we review the eruptive history of Etna over the last 100 years. In particular, we take into consideration the Mount...

Using a newly developed high-resolution three-dimensional magnetic detector system (3D-MAGMA), we observed periodical movements of a small magnetic marker in the human stomach at the typical gastric slow-wave frequency, that is 3 min(-1). Thus we hypothesized that each gastric slow wave induces a motor response that is not strong enough to be detected by conventional methods. Electrogastrograph...

Introduction: It is generally assumed that the abundances of the siderophile elements in the terrestrial planet’s mantle are the result of core formation. High pressure experimental metal–silicate partitioning data for Ni, Co, V, Cr, Nb, Mn and Mo etc. were used to investigate the geochemical consequences of a range of models for core formation on Earth and the most popular model is a “deep mag...

Regulatory sites that control gene expression are essential to the proper functioning of cells, and identifying them is critical for modeling regulatory networks. We have developed Magma (Multiple Aligner of Genomic Multiple Alignments), a software tool for multiple species, multiple gene motif discovery. Magma identifies putative regulatory sites that are conserved across multiple species and ...

10 The Earth’s deep interior contains significant reservoirs of volatiles such as H, C, and N. Due 11 to the incompatible nature of these volatile species, it has been difficult to reconcile their 12 storage in the residual mantle immediately following crystallization of the terrestrial magma 13 ocean (MO). As the magma ocean freezes, it is commonly assumed, very small amounts 14 of melt is ret...

Understanding the controls for magma ascent and storage depth is important for volcanic hazard assessment. Regional differences in the depths of magma storage between volcanic arcs suggest that the settings of subduction zones and of overriding plates influence howmagma ascends through the crust. Here we use a compilation of data for 70 volcanoes in 15 volcanic regions to better understand the ...

[1] Sediment gravity cores collected from the Pacific seafloor offshore Central America contain numerous distal ash layers from plinian-type eruptions at the Central American Volcanic Arc dating back to more than 200 ka. In part 1 of this contribution we have correlated many of those ash layers between cores and with 26 tephras on land. The marine ash layers cover areas of up to 10 km in the Pa...