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
•  Temp. and Thermal Cond.
•  Surface Slicks

Explanatory Notes
•  Navigation
•  Sub-Bottom Profiler (SBP)
•  Sample Handling
•  Geochemistry
•  Geoth. Grad. and Heat Flow

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

Integration and Conclusions
•  Measuring Range
•  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