Proven and probable gold reserves at Amapari have been cut to 485,000 ounces as of Dec. 31, 2006, reflecting the exclusion of sulphide mineralization that was previously included.
That will result in the $170M impairment charge, Vancouver-based Goldcorp said in a release.
Goldcorp said it will end up with about 24 per cent of Peak Gold, the new name for GPJ Ventures.
"This transaction underscores our commitment to simplifying Goldcorp's asset portfolio," said CEO Kevin McArthur.
"It sharpens our geographic focus and provides capital that will help fund our growth opportunities and enhance our already-strong financial flexibility. Our ownership interest in Peak Gold will also allow us to participate financially in the future success of that exciting new growth platform."