Labrador Sea Sampling 2014

Edited by Stephane Polteau, L.M. Stolze, S. Planke, and R. Myklebust

5 focus areas with 184 sampling sites (244.5 m of sediment cores) and 79 water samples. 11 calculated geothermal gradients. Hydrocarbon anomalies above DHIs and deep structures indicate deep origin of seeping fluids.

Use of three different methods increased analytical measuring range and hydrocarbon anomaly recognition. Over 900 analytical results for seep studies

Extensive Analytical Program

  • AGI (Amplified Geochemical Imaging)
  • MPOG (Microbial Prospecting for Oil and Gas)
  • Seep geochemistry at TDI-Brooks
  • APT geochemistry interpretation
  • Heatflow and thermal conductivity measurements


  • Printed reports and appendices
  • Digital report and data
  • Arc-GIS project




Executive Summary


  • Aim
  • Sampling Strategy
  • Geological Framework


  • Overview
  • Vessel
  • Sampling Procedures
  • Temperature and Thermal Conductivity
  • Surface Slicks

Explanatory Notes

  • Navigation
  • Sub-Bottom Profiler (SBP)
  • Sample Handling
  • Geochemistry
  • MPOG (Microbial Prospecting for Oil and Gas)
  • Geothermal Gradient and Heat Flow


  • Standard Organic Geochemistry
  • AGI
  • MPOG
  • Slick Sample Analysis
  • Heat Flow and Geothermal Gradient

Integration and Conclusions

  • Measuring Range and Method Sensitivities
  • Petroleum Systems
  • Heat Flow and Thermal Gradient
  • Conclusions


Appendix A - Core Descriptions
Appendix B - Original Lab Reports
Appendix C - Data Report
Digital Data