PRELIMINARY AGE OF IMPACT MELTS FROM THE CHESAPEAKE BAY IMPACT STRUCTURE.

2483. [12] Jourdan et al. (2008), EPSL 265, 438449. [13] Koeberl (1988) Meteoritics 23, 161-165. [14] Albin et al. (2000) MAPS 35, 795-806. [15] Jourdan et al. (2007) GCA 71, 1214-1231. Fig.1 Melt rock samples, width ~4 cm (A and C). A – Thin section scan of hypocrystalline melt rock; B – SEM-BSE image of glassy melt, bright Opx laths, spherulitic Pl, dispersed Spl and assimilated quartz clast. C Thin section scan of holocrystalline melt rock; D – SEM-BSE image of crystallized melt with radial Plspherulites, few bright Opx, dispersed, bright Spl, some euhedral zoned sanidine and cordierite. Large Meteorite Impacts and Planetary Evolution IV (2008) 3093.pdf