The video portion of the installation, "San Francisco Wharf Complex/American Industrial Center Carbonate Group: Towards a Geologic Narrative," done for the exhibition: "Data Clay: Digital Strategies for Parsing the Earth," Museum of Craft and Design, San Francisco, CA / 2015. This lecture is referenced at < johnroloff.com/SFWC_Potrero_page.html >. These and all videos of this work and content are copyright protected and may only be used for research or education purposes.