Yukon Geological Survey publication metadata (English, HTML)

View metadata and access the original English HTML file: Yukon Geological Survey publication metadata.

Format

HTML

Access

file-only

Publisher-reported update

2026-08-26

Schematic fold style, interpreted from fold geometry in outcrop and in thin section, rather than mapped structures. Jules Creek fault - possibly an Early Permian strikeslip fault (Murphy, 2004) reactivated with east-directed thrust motion in the Jurassic (Inconnuage). King Arctic Upper Quarry. Metasomatic replacement of chert granule to pebble conglomerate by tremolite is visible in outcrop over an interval of 5 m. The rocks across the contact from bottom to top are: serpentinite, nephrite, semi-nephrite, partly replaced conglomerate, and nonmetasomatized metaconglomerate. Nephrite formation resulted from metasomatic replacement of metasedimentary rocks (King Arctic formation green chert pebble conglomerate and lithic arenite and White Lake group Whitefish limestone) and/or serpentinite by serpentinite-derived fluids along D3 thrust faults interpreted to have Early Jurassic motion.

Access original file