نتایج جستجو برای: oceanic crust

تعداد نتایج: 22448  

2013
Xian-Hua Li Michel Faure Wei Lin Gianreto Manatschal

The Chenaillet Ophiolite is one of the best-preserved remnants of the Piemont-Liguria oceanic basin, a branch of the Central Atlantic that opened during the separation of Adria/Africa from Europe. Despite numerous studies of structure, petrology, geochemistry and isotope geochronology, the timing and genesis of various magmatic rocks within the Chenaillet Ophiolite are still controversial. We p...

Journal: :Geophysical Journal International 1980

Journal: :Journal of Geography (Chigaku Zasshi) 1987

Journal: :Science 2008
Alexander V Sobolev Albrecht W Hofmann Gerhard Brügmann Valentina G Batanova Dmitry V Kuzmin

Recycled subducted ocean crust has been traced by elevated 187Os/188Os in some studies and by high nickel and low manganese contents in others. Here, we show that these tracers are linked for Quaternary lavas of Iceland, strengthening the recycling model. An estimate of the osmium isotopic composition of both the recycled crust and the mantle peridotite implies that Icelandic Quaternary lavas a...

Journal: :Journal of Geography (Chigaku Zasshi) 2003

Journal: :Journal of Geography (Chigaku Zasshi) 2008

Journal: :Geochemistry, Geophysics, Geosystems 2001

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