How does fractional crystallization affect the composition of newly formed oceanic crust?

Apr 3, 2008 ... The grids include data from all the major ocean basins as well as detailed reconstructions of back-arc basins. The age, spreading rate, and ... Jan 10, 1981 ... ... seafloor spreading. | OSTI.GOV. ... Sea prior to the establishment of a mid-ocean ridge. It is suggested that the development of a new ocean ... Seafloor spreading determines plate motion around a midocean ridge. Midocean ridges are always plate boundaries. Since many plates, such as the North American ... Support for Hess's theory of seafloor spreading included evidence from molten material, magnetic stripes, and drilling samples. First, pillow-shaped rocks found ... 2 cm * 475 km/cm = 950 km = 95,000,000 cm = 9.5 * 107 cm · 65 million years = 65,000,000 years = 6.5 * 107 years. Mar 2, 2017 ... Geological Survey of Canada geophysicist Lawrence Morley was one of the first to have the “eureka” moment that put all the pieces together when ... Nov 13, 2018 ... The Red Sea is an important example of a rifted continental shield proceeding to seafloor spreading. However, whether the crust in the ... Jan 17, 2014 ... The SW South China Sea preserves a propagating oceanic spreading centre and associated continent–ocean transition (COT) that characterizes ... Seafloor Spreading is the usual process at work at divergent plate boundaries, leading to the creation of new ocean floor. As two tectonic plates slowly ... Mar 29, 2014 ... ... seafloor spreading in the South China Sea occurred here first around 32 Ma. Magnetic Anomaly 11, the oldest anomaly interpreted by Taylor ...