Sr–Nd–Pb–Hf Isotopic Constraints on the Mantle Heterogeneities beneath the South Mid-Atlantic Ridge at 18–21°S

• Published in: Minerals
• Main Authors: Yun Zhong, Xu Zhang, Zhilei Sun, Jinnan Liu, Wei Li, Yaoliang Ma, Weiliang Liu, Bin Xia, Yao Guan
• Format: Text
• Language: English
• Published: Multidisciplinary Digital Publishing Institute 2020
• Subjects: Sr–Nd–Pb–Hf isotopes; mantle heterogeneities; plume–ridge interaction; St. Helena plume; South Mid-Atlantic Ridge; Mid-Atlantic Ridge; St. Helena; South Atlantic Ocean
• Online Access: https://doi.org/10.3390/min10111010

In an attempt to investigate the nature and origin of mantle heterogeneities beneath the South Mid-Atlantic Ridge (SMAR), we report new whole-rock Sr, Nd, Pb, and Hf isotopic data from eight basalt samples at four dredge stations along the SMAR between 18°S and 21°S. Sr, Nd, and Pb isotopic data fro...