This study presents the first geochemical, mineralogical and petrological data on mafic ultramafic rocks of Texenna (Lesser Kabylia, north-eastern Algeria) with aim constraining their tectonic setting in context Maghrebide belt. The magmatic-sedimentary complex comprises serpentinite, metabasites (metagabbro, metadolerite metabasalt pillow-lava structures), oceanic metasediments (radiolarite ca...

O are claimed to be pieces of ocean crust and upper mantle that have been thrust up onto continental crust and are now found in mountains, mainly along continental margins.1,2 An ideal ophiolite suite consists from bottom to top of peridotite, gabbro, sheeted dikes, basalt with pillow lavas and sedimentary rocks. The peridotite is considered to be an upper mantle rock, while the remainder of th...

The mainly deep-submarine Ontong Java Plateau (OJP) is the result of largest outpouring lava in geologic record. Volcanic events this magnitude can have dramatic environmental impacts due to volatile emissions. We report new S measurements naturally glassy, olivine-hosted melt inclusions and pillow basalt glasses from OJP. combined these data with previous OJP quantify degassing a suite glasses...

The interaction between volcanic processes and glacial ice is termed glaciovolcanism a process that prevalent on Earth potentially once Mars. Such are dynamic, forming habitable environments under ice. This work will attempt to describe the glaciovolcanic deposits at Crazy Hills Lone Butte in central Washington evaluate potential habitability of these glaciovolcanoes. identification pillow lava...

Wadi Ghadir ophiolite in the Egyptian Eastern Desert, which forms northern part of Nubian Shield, is considered as one best-preserved segments Neoproterozoic oceanic lithosphere on Earth. Primary melt calculations and thermodynamic modeling new geochemical data for pillow lavas dike complexes, integrated with comprehensive petrographic investigations, are here employed to unravel geodynamic evo...