The Grenada Basin separates the active Lesser Antilles Arc from Aves Ridge, described as a Cretaceous-Paleocene remnant of “Great Caribbean.” Although various tectonic models have been proposed for opening Basin, data on which they rely are insufficient to reach definitive conclusions. This study presents, large set deep-penetrating multichannel seismic reflection and dredge samples acquired du...

Integration of data from field. geochemistry, and radiometric age invcstigations of the active Banda arc-Australia collision zonc (Banda orogen) and· the Jurassic Brooks Range ophiolite provide ncw constraints for the origin and emplacement of Oman-type ophiolites. These ophiolites arc characterized by ultramafic residuals and mafic products that arc chemically modified by "anous dcgrees of pan...

We welcome Zhang et al.’s comment on our recent paper dealing with the significance of the first geochemical and geochronological analyses of deep drill-core samples collected from the basement of the central Tarim basin (Guo et al., 2005). In their comments, Zhang et al. raised three questions with regard to our paper (1) the compatibility of our model with regional geology, (2) our interpreta...

This thesis compiles two distinct studies that both document the control of microstructures on rock seismic properties. The first part deals with the development of crystallographic preferred orientations (CPO) in the uppermost mantle associated with melt/fluid-rock interactions, recorded in peridotites xenoliths from the Japan sea back-arc basin. The microstructural and geochemical characteris...