1. Leg 204 Summary

ABSTRACT

INTRODUCTION

GEOLOGIC AND BIOGEOCHEMICAL SETTING

HIGH-RESOLUTION THREE-DIMENSIONAL SEISMIC DATA

SUMMARY OF SCIENTIFIC OBJECTIVES

Stratigraphic and Structural Controls on Hydrate Development

Formation of Massive Hydrate Near the Seafloor

Methane Sources and Geochemical Effects of Hydrate Formation and Dissociation

Geochemical Impact on the Geological Record

Calibration of Geophysical Estimates of Hydrate and Gas Volumes

Hydrates and Slope Stability

DRILLING STRATEGY

OPERATIONAL SUMMARY

SITE SUMMARIES

CONCLUSIONS

REFERENCES

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