Figure F28. Close-up photograph of an example of intrusion breccias. Clasts of completely talc-altered harzburgite are hosted in a matrix consisting of completely talc-altered material interpreted as replacing fine-grained gabbro. Late, dark, talc-serpentine veins are present in the breccia matrix (interval 209-1268A-14R-1, 133

Figure F28. Close-up photograph of an example of intrusion breccias. Clasts of completely talc-altered harzburgite are hosted in a matrix consisting of completely talc-altered material interpreted as replacing fine-grained gabbro. Late, dark, talc-serpentine veins are present in the breccia matrix (interval 209-1268A-14R-1, 133–146 cm).