Magnesium isotopic composition of the oceanic mantle and oceanic Mg cycling

• Published in: Geochimica et Cosmochimica Acta
• Main Authors: Liu, Ping-Ping, Teng, Fang-Zhen, Dick, Henry J. B., Zhou, Mei-Fu, Chung, Sun-Lin
• Other Authors: Liu, PP (reprint author), Acad Sinica, Inst Earth Sci, 128 Sec 2,Acad Rd, Taipei 11529, Taiwan., Peking Univ, Sch Earth & Space Sci, Key Lab Orogen Belts & Crustal Evolut, Beijing 100871, Peoples R China., Chinese Acad Sci, Inst Geol & Geophys, State Key Lab Lithospher Evolut, Beijing 100029, Peoples R China., Acad Sinica, Inst Earth Sci, 128 Sec 2,Acad Rd, Taipei 11529, Taiwan., Univ Washington, Dept Earth & Space Sci, Isotope Lab, Seattle, WA 98195 USA., Woods Hole Oceanog Inst, Dept Geol & Geophys, Woods Hole, MA 02543 USA., Univ Hong Kong, Dept Earth Sci, Pokfulam Rd, Hong Kong, Hong Kong, Peoples R China.
• Format: Journal/Newspaper
• Language: English
• Published: GEOCHIMICA ET COSMOCHIMICA ACTA 2017
• Subjects: Abyssal peridotite; Magnesium isotope; Mantle heterogeneity; Magnesium cycling; Seafloor alteration; NORTH CHINA CRATON; PLASMA-MASS SPECTROMETRY; MID-ATLANTIC RIDGE; PERIDOTITE XENOLITHS; ABYSSAL PERIDOTITES; CARBONATITE METASOMATISM; GAKKEL RIDGE; ARCTIC-OCEAN; THIN CRUST; FRACTIONATION; Arctic; Arctic Ocean; Gakkel Ridge; Indian; Mid-Atlantic Ridge
• Online Access: https://hdl.handle.net/20.500.11897/473106; https://doi.org/10.1016/j.gca.2017.02.016

To constrain the Mg isotopic composition of the oceanic mantle, investigate Mg isotope fractionation of abyssal peridotites during seafloor alteration, and assess Mg budget in the oceans, a suite of 32 abyssal peridotite samples from the Gakkel Ridge and Southwest Indian Ridge (SWIR) was, for the fi...