Deep-water circulation and earth environment
نویسندگان
چکیده
منابع مشابه
Diamonds and water in the deep Earth: a new scenario
Earth is a water planet, but how much water exists on and in the Earth? Is the water limited to the Earth’s surface and limited depths of our planet (molecular water of the hydrosphere), or do deep reservoirs of hydrogen and oxygen really exist as proposed in recent works but not yet proven? Due to the importance of H2O for life and geological processes on the Earth, these questions are among t...
متن کاملWater, Melting, and the Deep Earth H2O Cycle
Hydrous melting driven by changes in H2O storage capacity may occur in a variety of settings in the mantle, including in oceanic basalt sources and in deeper regions above and below the transition zone. The 50–200 ppm H2O in the upper mantle likely derives from a blend of sources that may include residues of hydrous partial melting, either in the deep mantle and/or beneath arcs or oceanic islan...
متن کاملGeo-neutrinos, Mantle Circulation and Silicate Earth
In preparation to the experimental results which will be available in the future, we consider geo-neutrino production in greater detail than in [F. Mantovani et al., arXiv:hep-ph/0309013], putting the basis for a more refined model. We study geo-neutrino production for different models of matter circulation and composition in the mantle. By using global mass balance for the Bulk Silicate Earth,...
متن کاملEarly Pliocene Deep-water Circulation: Stable Isotope Evidence for Enhanced Northern Component Deep Water1
High resolution benthic (Cibicidoides spp.) stable isotope and percent sand fraction records were constructed for the early Pliocene (3.3-4.7 Ma) at Ocean Drilling Program (ODP) Sites 925 (3042 m water depth) and 929 (4361 m water depth). These sites are located in the modern mixing zone of North Atlantic Deep Water (NADW) and Antarctic Bottom Water (AABW). We evaluate changes in deep-water cir...
متن کاملDynamics of the Snowball Earth Hadley circulation
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ژورنال
عنوان ژورنال: NIPPON SUISAN GAKKAISHI
سال: 2010
ISSN: 1349-998X,0021-5392
DOI: 10.2331/suisan.76.723