Cross-section of the geology of Western Newfoundland

A. B. Ryan
Mineral Development Division,
Newfoundland Department of Mines and Energy
(from Newfoundland Journal of Geological Education, v7, n2, 1983)

cross section

Figure 2: Top: 500 million years ago the west coast was the continental margin of the Iaptus Ocean. Bottom: When Iapetus closed, giant slabs of the old ocean floor and slope deposits were transported westward across the old continental margin. This sketch is a schematic diagram of North Arm Mountain showing ocean floor and slope rocks sitting on carbonates of the margin. The quality of this cross-section will be improved shortly.