+++ ICDP: Call for Proposals - Next Chance January 15, 2018 +++ Highlights and Updates Moved to the new ICDP Web Site +++

Sudbury Deep Drilling Project



SudburyThe 1.8 Ga Sudbury Structure represents one of the world's largest, oldest, and best preserved meteorite impact structures and contains one of the world's largest Ni-Cu-PGE resources. In order to enhance our understanding of deep crustal geology, rock mechanics, fluid flow, and biology in the area we are in the process of planning a major geoscience initiative, which will include drilling within the Sudbury Structure through the framework of the International Continental Scientific Drilling Program (ICDP).

The scientific objectives of the project will include, but are not limited to, the following:

  • better constrain large-scale models of the subsurface structure of the Sudbury Structure, which are currently based on non-unique forward and inverse geophysical models
  • acquire continuous samples of drill core through a section of the Sudbury Igneous Complex at depth, to investigate spatial variations in the crystallization history and composition of the impact-related melt sheet
  • sample fluids and gases at depth
  • assess the extent of biological activity at depths as great as 6 km in the continental crust
  • assess the metamorphic and deformational history of both the Sudbury Igneous Complex and its footwall rocks at depth
  • measure heat flow and state of stress deep within the Sudbury Structure, both of which will be key parameters in the future development of deep mines

(Figure ©:NRCan - Total magnetic field over the Sudbury Structure)



North America, Canada, Ontario, Sudbury



46° 30' 12'' N, 80° 58' 6'' W (Please scroll down to end of page for more information.)


Project Start and End
  • not yet determined


Programs and Funding


Principal Investigators
  • James E. Mungall, University of Toronto, Department of Earth Sciences
  • Bernd Milkereit, University of Toronto, Department of Physics
  • Richard A.F. Grieve, Geological Survey of Canada, Natural Resources Canada
  • C. Michael Lesher, Laurentian University, Mineral Exploration Research Centre


Partners and Contractors



Canada, Deep Biosphere, ICDP-2003/07, Igneous Petrology, Impact Structure, Meteorite Impact, Natural Resources, Ontario, SUDBURY


Current State



Google Earth/Maps