BEGIN:VCALENDAR VERSION:2.0 PRODID:-//Winterthur Museum, Garden & Library - ECPv5.14.1//NONSGML v1.0//EN CALSCALE:GREGORIAN METHOD:PUBLISH X-WR-CALNAME:Winterthur Museum, Garden & Library X-ORIGINAL-URL:https://www.winterthur.org X-WR-CALDESC:Events for Winterthur Museum, Garden & Library REFRESH-INTERVAL;VALUE=DURATION:PT1H X-Robots-Tag:noindex X-PUBLISHED-TTL:PT1H BEGIN:VTIMEZONE TZID:America/New_York BEGIN:DAYLIGHT TZOFFSETFROM:-0500 TZOFFSETTO:-0400 TZNAME:EDT DTSTART:20230312T070000 END:DAYLIGHT BEGIN:STANDARD TZOFFSETFROM:-0400 TZOFFSETTO:-0500 TZNAME:EST DTSTART:20231105T060000 END:STANDARD END:VTIMEZONE BEGIN:VEVENT DTSTART;TZID=America/New_York:20231012T180000 DTEND;TZID=America/New_York:20231012T190000 DTSTAMP:20250117T025608 CREATED:20230815T163358Z LAST-MODIFIED:20230927T130008Z UID:42797-1697133600-1697137200@www.winterthur.org SUMMARY:Winterthur's Geological Journey Virtual Lecture DESCRIPTION:Enjoy a look at Winterthur’s geologic past with Tom Stack\, estate guide. You’ll discover the bedrock geology of the site—type (metamorphic) and age (440 million years)—and explore how it was used as a primary building stone throughout the estate. You’ll also hear about Henry Francis du Pont’s personal connection to the estate’s geology and how black powder manufactured by the DuPont Company was used to excavate the rock. Lecture followed by a Q&A. Free. Reservations required. \nThis free virtual lecture is presented by Winterthur Membership. Join today! \nRegister now. URL:https://www.winterthur.org/calendar/member-geological-journey-lecture/ CATEGORIES:Lecture,Member ATTACH;FMTTYPE=image/jpeg:https://www.winterthur.org/wp-content/uploads/850_0376-scaled.jpg END:VEVENT END:VCALENDAR