Glacial erratic: diabase boulder on granite, MaineJuly 18, 2018/in /by Marli Miller boulder, glacial deposition https://geologypics.com/wp-content/uploads/2017/04/geologic-time-pics-logo-300x115.png 0 0 Marli Miller https://geologypics.com/wp-content/uploads/2017/04/geologic-time-pics-logo-300x115.png Marli Miller2018-07-18 19:15:552018-07-18 19:25:56Glacial erratic: diabase boulder on granite, Maine
