Figure F56. Compositional zonation in plagioclase from a xenolith in Sample 192-1183A-54R-5 (Piece 4A, 32-35 cm), Unit 2B. Note the truncations of the interior compositional bands (highlighted), suggesting periods of resorption (field of view = 2.8 mm; crossed polars; photomicrograph ID#1183A

Figure F56. Compositional zonation in plagioclase from a xenolith in Sample 192-1183A-54R-5 (Piece 4A, 32-35 cm), Unit 2B. Note the truncations of the interior compositional bands (highlighted), suggesting periods of resorption (field of view = 2.8 mm; crossed polars; photomicrograph ID#1183A_006).