Dear Colleagues If your work involves mantle plumes and their effects, on Earth or elsewhere, please consider submitting an abstract to the GSA National Meeting, Oct 19-22 in San Antonio Texas. Your abstract could be part of the special session T-169 Mantle Plumes on Terrestrial Planets (Including Earth) chaired by Dr. Justin Filiberto and me. All the terrestrial planets have (or appear to have had) mantle plumes and associated igneous and tectonic activity – this session aims to share insights across the solar system. The session will start with invited talks by Drs. Thorsten Becker and Scott King; contributed talks (including yours) would follow. Abstracts are due by August 5, 2025. See you in San Antonio! Allan Treiman Allan H. Treiman Principal Scientist Lunar and Planetary Institute, USRA 3600 Bay Area Blvd. Houston TX 77058-1113 281-486-2117 “… the exceedingly rich were no longer even remotely human.” Count Zero. William Gibson