Argon data for enriched MORB from the 8°20' N seamount chain

This dataset accompanies planned publication 'Near-Ridge Magmatism Constrained Using 40Ar/39Ar Dating of Enriched MORB from the 8°20' N Seamount Chain'. The Ar/Ar data are for samples that record the volcanic history of the area. The geochronology provides time constraints for the eruption of rocks studied in the manuscript. Samples were collected from the 8°20' N seamount chain by Molly Anderson (University of Florida), who sent them to the USGS Denver Argon Geochronology Laboratory for Ar/Ar analysis.

本数据集配套待发表论文《利用北纬8°20′海山链富集型洋中脊玄武岩（MORB, Mid-Ocean Ridge Basalt）的40Ar/39Ar定年约束近脊岩浆作用》。本数据集包含的Ar/Ar定年数据均来自用于记录该区域火山活动历史的岩样，该套地质年代学数据可为论文中所研究岩石的喷发时序提供定量约束。所有岩样均由佛罗里达大学的莫莉·安德森（Molly Anderson）于北纬8°20′海山链采集，并送往美国地质调查局（USGS, United States Geological Survey）丹佛氩同位素地质年代学实验室开展Ar/Ar分析测试。