The thermal evolution and crustal nature along the Mozambique rifted margin is investigated using a forward kinematic modelling approach. numerous plate reconstructions for breakup of East Gondwana question margin, especially in vicinity Beira High Zambezi depression. Given few geological geophysical data available, it necessary to propose simple but relevant hypotheses calibrate structure evol...

Bimodal volcanism in the Santa Maria Province of west-central California occurred when segments of the East Pacific Rise interacted with a subduction zone along the California margin during the Early Miocene (about 17 million years ago). Isotopic compositions of neodymium and strontium as well as trace-element data indicate that these volcanic rocks were derived from a depleted-mantle (mid-ocea...

The present study is a contribution to the understanding of continental-scale source-to-sink sedimentary systems over geological time scales. northern half South America taken as case explore relations between (i) continental tectonic boundary conditions (active / passive margin, orogenic activity) and intracontinental deformation, (ii) spatial distribution clastic sediment sources sinks contin...

10 Recent sedimentation along the Hikurangi subduction margin off northeastern New Zealand is 11 investigated using a series of piston cores collected between 2003 and 2008. The active Hikurangi 12 Margin lies along the Pacific-Australia subduction plate boundary and contains a diverse range of 13 geomorphologic settings. Slope basin stratigraphy is thick and complex, resulting from sustained h...

one of the most intensive occurrences of magmatism in iran was in the middle jurassic period. among the granitoid intrusions in this period as discrete bodies or complexes can be pointed to aligoodarz, alvand, astaneh, boroujerd, malayer, and chah-dozdan in the sanandaj-sirjan zone; shir-kuh and ayrakan in the central iran zone; shah-kuh, sorkh-kuh and kalateh-ahani in the lut block. these gran...

The basis of this study is a new bathymetric map of the northeast Atlantic compiled from previously published maps made from conventional echosounder data, plus all Sea Beam data acquired on board the R/V JEAN CHARCOT since 1977. As most of the Sea Beam data have been obtained on the continental margin from Porcupine Seabight to the south of the Iberian Peninsula, a precise picture of the conti...

Recem Ocean Drilling Program sampling of the Ctte d'Ivoire-Ghana margin of West Africa provides for the first time the opportunity to study the development of a marginal ridge that formed along a sheared passive margin adjacent to the continent-ocean transition after the end of intmcontinemal wrenching. We model its evolution using a two dimensional flexural backstripping technique. The model i...

Zoophycos is a complex three dimensional trace fossil that is abundant in deep ocean sediments worldwide, but has not been described previously from Cenozoic continental margin deposits of Antarctica. In the ANDRILL 1B core drilled through the northwest McMurdo ice shelf, Zoophycos occurs in a 17m thick unit of interglacial sediments bounded above and below by glacial surfaces of erosion. This ...

The continental margin is a key area for studying the sedimentary processes related to advance and retreat of Ross Ice Shelf (Antarctica); nevertheless, much remains be investigated. aim this study increase knowledge last glacial/deglacial dynamics in Central Basin slope–basin system using multidisciplinary approach, including integrated sedimentological, micropaleontological tephrochronologica...