Ocean Drilling Program

Leg 201 Preliminary Report

Controls on Microbial Communities in Deeply Buried Sediments,
Eastern Equatorial Pacific and Peru Margin

27 January–29 March 2002

TABLE OF CONTENTS

• TITLE PAGE
  
• PUBLISHER'S NOTES
  
• DISCLAIMER
  
• SHIPBOARD PARTICIPANTS
  • Shipboard Scientific Party
  • Observers
  • Transocean Sedco Forex Officials
  • ODP Shipboard Personnel and Technical Representatives
• ABSTRACT
  
• INTRODUCTION
  • Background
  • Metabolic Diversity
  • Microbial Diversity
  • Global Biogeochemical Effects
  • Why the Equatorial Pacific and Peru Margin?
  • Scientific Objectives
  • Scientific Approaches
• PRINCIPAL RESULTS
  • Subseafloor Microbial Activities of Different Sedimentary Geochemical Regimes
  • Influences of Subseafloor Flow and Brines on Microbial Activities and Sediment Chemistry Deep in the Sediment Column
  • Effects of Past Oceanographic Conditions on Current Microbial Activities in Deep-Sea Sediments
  • Environmental Effects of the Subseafloor Biosphere
  • Structure of Subseafloor Microbial Communities
  • Contamination Tests
• SITE SUMMARIES
  • Open-Ocean Sites
  • Equatorial Upwelling Sites
  • Ocean-Margin Sites
• OPERATIONAL HIGHLIGHTS
  • Improved Recovery and Optimized Core Handling Procedures
  • Pressure Coring System
• HYACE
  • In Situ Temperature and Pressure Measurements
  • APC-Methane Tool
  • Perfluorocarbon Tracers
  • Fluorescent Microspheres
  • Thermal Infrared Camera
  • Microbiological Rate Studies
• REFERENCES
• TABLE CAPTIONS AND TABLES
• FIGURE CAPTIONS AND FIGURES

Date posted: 11 June 2002

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