Figure F17. Photomicrographs showing titanomagnetite morphologies. A. Alteration of titanomagnetite to maghemite along cleavage planes and around rims in the weathered flow top of Unit 10 (Sample 197-1205A-24R-2 [Piece 19, 124-130 cm]) (reflected light; f

Figure F17. Photomicrographs showing titanomagnetite morphologies. U, V. Cr spinel in tholeiitic basalt Subunit 19b with rims of titanomagnetite after reacting with the magma (Sample 197-1205A-35R-4 [Piece 1C, 77-79 cm]) (reflected light; field of view = 0.25 mm): (U) photomicrograph 1205A-248; (V) photomicrograph 1205A-270. Click on letter or image for enlargement.