Lower Fanconia impact strewn field https://agu2022fallmeeting-agu.ipostersessions.com/default.aspx?s=30-2D-55-B4-C8-78-3F-96-91-A7-9B-2B-C3-A7-4B-D2&guestview=true AGU Meting 2022 Ground Penetrating Radar GPR