How can the study of ancient oceanic crust (ophiolites) on land provide insights into sea spreading?

Seafloor Spreading at Mid-Ocean Ridges. Convection currents drive the movement of Earth's rigid tectonic plates in the planet's fluid molten mantle. In ... May 21, 2024 ... From the extent of new oceanic crust accreted along the CB, we estimate the age of the basin using a seafloor spreading rate of 52 mm/year, ... Today, Earth scientists accept seafloor spreading as an integral part of plate tectonics. “When you have two oceanic plates moving away from one another, that's ... 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 ... The Woods Hole Oceanographic Institution is dedicated to advancing knowledge of the ocean and its connection with the Earth system. Apr 23, 2014 ... Abstract. We review the seafloor spreading record of plate motions adjacent to the Antarctic continent during and after Cretaceous ... Natawidjaja [2000], spreading rate in the Andaman Sea is from Kamesh Raju et ... Changes in direction of seafloor spreading revisited, J. Geophys. Res ... Sep 3, 2022 ... This hypothesis traces oceanic crust from its origin at a mid-ocean ridge to its destruction at a deep sea trench and is the mechanism for continental drift. Post-rift magmatism associated with seafloor spreading (∼32 Ma to ∼15 Ma) and post-spreading tectonics (from ∼15 Ma to the present day) is widely ... Apr 14, 2022 ... Sluggish spreading rates could mean a drop in greenhouse gas emissions from volcanoes ... A new global analysis of the last 19 million years of ...