10.1130/9975 Peter S. Dahl Peter S. Dahl Supplemental material: A Geochronologic Study of Early Proterozoic Tectonism in the Black Hills (South Dakota), and Implications for Docking of the Wyoming Province with Laurentia Geological Society of America 1999 Geoscience 1999-01-01 00:00:00 Journal contribution https://gsapubs.figshare.com/articles/journal_contribution/Supplemental_material_A_Geochronologic_Study_of_Early_Proterozoic_Tectonism_in_the_Black_Hills_South_Dakota_and_Implications_for_Docking_of_the_Wyoming_Province_with_Laurentia/12334790 GSA Data Repository Item 9975, GSA Bulletin, Vol. 111, p. 1335. File size: 14 p., about 347 K bytes.