Many skarn and greisen deposits are associated with hydrothermal breccias. The Griffith Canyon Member consists of basaltic and andesitic epiclastic volcanic breccias. This rock unit contains andesitic breccias, flow, agglomerates and tuffs. The Stanton Ranch Member consists of andesitic flows, flow breccias, and tuff breccias. It is a pile of tholeiitic pillow basalts and breccias. Rhyolite flows, breccias and hyaloclastics are the primary rocks comprising the Flat Landing Brook Formation. It consists of largely intermediate composition lavas and breccias. They also contain layers of hemipelagic limestones, conglomerates, carbonaceous breccias as well as olistoliths. Pyroclastic breccias and conglomerates formed in conjunction with the new eruptions. Regolith breccias with similar protoliths are also common. They are the deep crustal counterparts to cataclastic brittle faults that create fault breccias. Small pieces of peridotite have even been found in lunar breccias. There, they collected black and white breccias and smaller, crystalline rocks rich in plagioclase. The Masefau dike complex and talus breccias are remnants of this rifting. The rocks that make up Anacapa are composed of lava, breccias, volcanic ash and cinders.