Figure F21. Close-up photograph of the upper half of the volcaniclastic silty claystone of Unit 13, showing the two zones of highly disturbed white material, possibly anhydrite (interval 200-1223A-6X-4, 29-53 cm).

Figure F21. Close-up photograph of the upper half of the volcaniclastic silty claystone of Unit 13, showing the two zones of highly disturbed white material, possibly anhydrite (interval 200-1223A-6X-4, 29-53 cm).