On-site Sample Handling & Logging Procedures

• Washing - remove drilling mud
• Marking - up-down orientation, depths relative to top of core run
• Boxing
• Slabbing - working & archive splits
• Polaroid photography
• Logging and entry into computer database - flow boundaries & hand-specimen scale description (e.g., phenocryst & vesicle abundance, groundmass texture, rock classification, etc...)
• 35 mm and video photography
• Sampling