Thus, the unit of melt volume is km3/km/Ma. However, oceanic crustal thickness is negatively correlated with spreading rate from slow to fast-spreading centers, and this trend is further consolidated by the increase in Curie point depth (a geothermal proxy) and ridge depth with increasing spreading rate. 1992)., Suo Y, Li S, Li X, Guo L, Wang Y (2016) Crustal thickness anomalies in the Indian Ocean inferred from gravity analysis. Subscription will auto renew annually., Bach W, Fruh-Green GL (2010) Alteration of the oceanic lithosphere and implications for seafloor processes. Melting field becomes steady after 10 Ma of seafloor spreading. Int Geol Rev 47:101–112. Zhou, D., Li, CF., Zlotnik, S. et al. 11. The thickness of continental crust is between 30km and 50km., Stein CA, Stein S (1994) Constraints on hydrothermal heat flux through the oceanic lithosphere from global heat flow. Geophys Res Lett 19:753–756. Our observations provide evidence for a thickened (cold) mantle transition zone west and northwest of the islands, which excludes the presence of a deep-reaching mantle plume. Chun-Feng Li., Chen YJ (2000) Dependence of crustal accretion and ridge-axis topography on spreading rate, mantle temperature, and hydrothermal cooling. Why don't libraries smell like bookstores? (2003)., DOI:, Over 10 million scientific documents at your fingertips. How the function handphone can be connect with computer?, Reid I, Jackson HR (1981) Oceanic spreading rate and crustal thickness. Sergio Zlotnik thanks the funding from the Generalitat de Catalunya 2017-SGR-1278, the project DPI2017-85139-C2-2-R funded by the Spanish Ministry and the project H2020-RISE MATHROCKS (Grant agreement NO. The grey filled lines around the chamber wall in a represent hydro-fracturing fissures, Afonso JC, Zlotnik S, Fernàndez M (2008) Effects of compositional and rheological stratifications on small-scale convection under the oceans: implications for the thickness of oceanic lithosphere and seafloor flattening. 2008). J Geophys Res. Oceanography 20:78–89, Langmuir CH, Klein EM, Plank T (1992) Petrological systematics of mid-ocean ridge basalts: constraints on melt generation beneath ocean ridges. Besides, most oceanic crust thinner than 5 km were found at ultraslow-spreading ridges (Fig., Manning CE, MacLeod CJ, Weston PE (2000) Lower-crustal cracking front at fast-spreading ridges: evidence from the East Pacific Rise and the Oman ophiolite., Zhang C, Koepke J, Kirchner C, Gotze N, Behrens H (2014) Rapid hydrothermal cooling above the axial melt lens at fast-spreading mid-ocean ridge. Earth Planet Sci Lett 465:134–144. It consists of unconsolidated or semiconsolidated sediments, usually thin or even not present near the mid-ocean ridges but thickens … Nat Geosci 10:58–61. J Geophys Res: Solid Earth 122:3934–3952. Geophys Res Lett. Sp receiver functions image the base of lithosphere at about 60 to 75 km beneath the islands, which argues for a compositionally controlled seismological lithosphere-asthenosphere boundary beneath the study area. J Geophys Res. In: German CR, Lin J, Parson LM (eds) Mid-ocean ridges: hydrothermal interactions between the lithosphere and oceans., Edmonds HN et al (2003) Discovery of abundant hydrothermal venting on the ultraslow-spreading Gakkel ridge in the Arctic Ocean. The term fs accounts for the viscous dissipation, and σij and εij are the stress and strain rate tensors, respectively. J Petrol 25:713–765. Google Scholar, Alvey A, Gaina C, Kusznir NJ, Torsvik TH (2008) Integrated crustal thickness mapping and plate reconstructions for the high Arctic. The white line in a represents the ductile brittle transition boundary inferred from Bécel et al. We thank Xiaobo He, Naifeng Fu, Alberto García González, and all members of Marine Geophysics and Seismology Group at Zhejiang University for helpful discussions. The main phase transitions of olivine are included in the model (olivine, wedsleyite, ringwoodite, and Mg-perovskite). Gravity-observed melt volume shows a positive correlation with spreading rate globally, implying that spreading rate is the dominant factor in melt production. American Geophysical Union, Washington, D.C., pp 29–44, Fontaine FJ, Olive J-A, Cannat M, Escartin J, Perol T (2011) Hydrothermally-induced melt lens cooling and segmentation along the axis of fast- and intermediate-spreading centers. In: Lagabrielle WRBP (ed) Faulting and magmatism at mid-ocean ridges, vol 106. We use cookies to help provide and enhance our service and tailor content and ads. (2015). The term fa includes the heat changes due to adiabatic compression and decompression of materials. 2004)., Demets C, Gordon RG, Argus DF, Stein S (1990) Current plate motions. It is made of mainly basalt, grabbo and diabise., Fei Y (1995) Thermal expansion., Hasterok D, Chapman DS, Davis EE (2011) Oceanic heat flow: implications for global heat loss.