Figure F21. Photograph of interval 187-1162B-4R-1, 91-103 cm, showing dolomite-cemented basalt breccia with completely altered basalt fragments that have large open shrinkage cracks caused by contraction during drying of the core. This reflects the high abundance of clay replacing the groundmass. Note the pillow basalt fragment (center), having the typical V-shaped form and remnants of a chilled margin.