Results 171 to 180 of about 782,637 (367)
Harry Hess and sea-floor spreading [PDF]
, 1999 Harry Hess's hypothesis of sea-floor spreading brought together his long-standing interests in island arcs, oceanic topography, and the oceanic crust. The one unique feature of Hess's hypothesis was the origin of the oceanic crust as a hydration rind on ...
Allwardt, Alan O.
core
Terra Nova, EarlyView.ABSTRACT Laser ablation U–Pb single zircon geochronology was applied to four peraluminous granite and granodiorite samples from the Bassiès pluton in the Central Pyrenees (France) yielding a wide range of concordant ages from early Carboniferous (Tournaisian, 351 Ma) to early Permian (Artinskian, 285 Ma).
Stephan Schnapperelle +5 more
wiley +1 more source
Geology and metallogeny of the upper mantle rocks from the Serranía de Ronda
, 2020 This research has been financially supported by the Spanish projects CGL201681085R, RTI2018-099157-A-I00, RYC-2015-17596 to JMGJ and the the research group (RNM 131) of the Junta de Andalucía. Additional funding for the edition of the printed version of the manuscript has been provided by the “Sociedad Española de Mineralogía (SEM)”.
Gervilla, Fernando +4 more
openaire +1 more source
Length of day variations due to mantle dynamics at geological timescale [PDF]
, 2011 M. Greff‐Lefftz
openalex +1 more source
Terra Nova, EarlyView.ABSTRACT The Hokuroku district of NE Japan hosts the type locality for Kuroko volcanic‐hosted massive sulphide (VHMS) deposits, which are the product of seafloor hydrothermal venting in a continental rift during the opening of the Sea of Japan in the Miocene.
Andrea Agangi +5 more
wiley +1 more source
Sea-level stability over geological time owing to limited deep subduction of hydrated mantle
, 2022 Nestor G. Cerpa +2 more
openalex +3 more sources
, 2015 We comprehensively compile and review N content in geologic materials to calculate a new N budget for Earth. Using analyses of rocks and minerals in conjunction with N-Ar geochemistry demonstrates that the Bulk Silicate Earth (BSE) contains \sim7\pm4 ...
Goldblatt, Colin, Johnson, Ben
core +1 more source
Geoscience Canada, 2014 Geological evidence, including the presence of two passive margin platforms, juxtaposed and mismatched deformation between North America and more outboard terranes, as well as the lack of rift deposits, suggest that North America was the lower plate during both the Sevier and Laramide events and that subduction dipped westward beneath the Cordilleran ...
openaire +2 more sources
Significance and Petrochemistry of Upper Mantle–mantle Transition Zone Metaperidotites and Oceanic Crust Metagabbros within the Kazdağı Metaophiolite: Implications for the Geological Evolution of the Izmir–Ankara–Erzincan Ocean, Northwestern Turkey [PDF]
, 2019 Ender Sarıfakıoğlu +3 more
openalex +1 more source
Constraining mantle density structure using geological evidence of surface uplift rates: The case of the African Superplume [PDF]
, 2000 Michael Gurnis +3 more
openalex +1 more source