Whitney, D. al., et Supplemental material: Late orogenic mafic magmatism in the North Cascades, Washington: Petrology and tectonic setting of the Skymo layered intrusion GSA Data Repository Item 2008028, GSA Bulletin, Vol. 120, p. 531. File size: 8 p., about 28 KB. Geoscience 2008-01-01
    https://gsapubs.figshare.com/articles/journal_contribution/Supplemental_material_Late_orogenic_mafic_magmatism_in_the_North_Cascades_Washington_Petrology_and_tectonic_setting_of_the_Skymo_layered_intrusion/12346313
10.1130/2008028