Reports on Deep Earth Sampling and Monitoring NUMBER 1, 2005 Published by the Integrated Ocean Drilling Program with the International Continental Scientific Drilling Program Reports on Deep Earth Sampling and Monitoring No. 3, September 2006 Deep Drilling into Oceanic Core Complex 4 Sedimentation and Overpressure in the Gulf of Mexico 12 Formation of Gas Hydrates, Cascadia Margin 18 Lake Petén Itzá Cores Show Climate Variability 25 Earthquakes Investigated at Focal Depths 30 Megablocks in Chesapeake Bay Crater 34 Scientific Drilling ISSN: 1816-8957