The behaviour of metals during differentiation of subduction-related lavas: A case study of active submarine volcanoes on the Hunter Ridge, SW Pacific by Gisela Rossana Cobeñas…

Slide 1 Magmatism and Tectonics Slide 2 Basaltic Lava Fountain and Flows – (Hawaii) Slide 3 Andesitic Explosive Eruption – (Mt. St. Helens) Slide 4 Magma Types Based…

Slide 1 Did plate tectonic begin in Early Archean times? Hugh Smithies Martin Van Kranendonk Dave Champion Geological Survey of Western Australia Slide 2 Back then Now >…

Slide 1 Slide 2 Basalt: pl, augite, hypersthene, olivine, spinel (45-52 SiO 2 ) Ultramafic volcanics : komatiite : olivine, high Mg, low Ti kimberlite : olivine, phlogopite,…

Did plate tectonic begin in Early Archean times? Hugh Smithies Martin Van Kranendonk Dave Champion Geological Survey of Western Australia Back then Now > 3 billion years…