Xavier15 Oct 2020 17:07
????????? Chinook-1 gas discovery
"Despite being spud a mere 1.5 kilometres south of Cascadura, the Chinook anticline is separate from, and distinctly different than the Cascadura anticline to the north. The structural mapping on the Herrera interval reveals that Cascadura and Chinook are two anticlines converging toward each other, with Cascadura being a tighter but heavily stacked fold, thereby making it a taller structure, while Chinook is interpreted to be a simpler, broader fold."
When two anticlines verge toward each other, the footwall or Subthrust sheet establishes a triangle zone. In the case of Cascadura and Chinook the triangle zone focussed syn-kinematic deposition of Mid Miocene Karamat turbidites capped by thick Karamat and Lengua sealing shales.
The Subthrust is one of the exploration targets in Cascadura Deep
#ortoire #exploration