Figure F32. A. Close-up photograph of a greenish serpentine mud breccia (interval 209-1274A-23R-2, 0–10 cm). Arrow indicates approximate area from which a sample for XRD analyses (B) was taken. B. XRD analysis of Sample 209-1274A-23R-2, 0–3 cm, revealing the presence of serpentine and magnetite. C. Photograph of a grayish-black serpentine mud breccia (interval 209-1274A-23R-2, 60–70 cm). Arrow indicates approximate area from which a sample for XRD analysis (D) was taken. D. XRD analysis of Sample 209-1274A-23R-2, 67–70 cm, revealing the presence of serpentine, magnetite, and nontronite. Note that magnetite is more abundant in this sample than in the green serpentine mud breccia.

Figure F32. A. Close-up photograph of a greenish serpentine mud breccia (interval 209-1274A-23R-2, 0–10 cm). Arrow indicates approximate area from which a sample for XRD analyses (B) was taken. B. XRD analysis of Sample 209-1274A-23R-2, 0–3 cm, revealing the presence of serpentine and magnetite. C. Photograph of a grayish-black serpentine mud breccia (interval 209-1274A-23R-2, 60–70 cm). Arrow indicates approximate area from which a sample for XRD analysis (D) was taken. D. XRD analysis of Sample 209-1274A-23R-2, 67–70 cm, revealing the presence of serpentine, magnetite, and nontronite. Note that magnetite is more abundant in this sample than in the green serpentine mud breccia.