Government of Yukon data describes the Lower to Middle Jurassic stratigraphy and ammonoid fauna of the Laberge Group in the Fish Lake syncline, northern Whitehorse Trough. Fossil collections record ammonite zones from Upper Pliensbachian to lowest Bajocian, suggesting a conformable sequence. The dataset provides insights into basin-fill history, source area uplift, and periodic anoxia during the Toarcian.
Use Cases
- Biostratigraphic dating based on ammonite zone records
- Analyzing basin-fill history based on described conglomerate sequences
- Studying paleoenvironmental conditions based on evidence of periodic anoxia
- Mapping source area uplift progression based on biostratigraphic dating of conglomerates
Strengths
- Data covers ammonite zones from Upper Pliensbachian to lowest Bajocian
- Focuses on a 500-km-long forearc basin (Whitehorse Trough)
- Provides a maximum age constraint on terrane amalgamation
Limitations
- Column-level documentation is absent; field semantics must be inferred after download
- Row count is unknown, which may limit suitability assessment
Provenance
- Source
- Government of Yukon
- Time Range
- Upper Triassic to Middle Jurassic
- Freshness
- Last updated 2026-04-17 16:07:36.759420
- Geography
- Fish Lake syncline, northern Whitehorse Trough, Yukon, Canada