The Proterozoic Pinguicula Group: Stratigraphy, contact relationships and possible correlations

The Pinguicula Group is a Proterozoic succession of clastic and carbonate rocks exposed in the Wernecke Mountains of northern Yukon. The strata were deposited with angular unconformity on the Wernecke Supergroup following the Racklan orogeny and emplacement of the Hart River sills. Two contact relationships have been resolved in the 2009 field season. The first, a 1.38 Ga dike previously thought to crosscut unit A, has instead been recognized to crosscut the underlying Wernecke Supergroup strata. This relationship is significant because it once again places the lower age limit of the Pinguicula Group into question and may reposition the Pinguicula Group within the history of geologic events. Secondly, the previously undefined contact relationship between units B and C has been identified as a gradational contact confirming the placement of unit C within the Pinguicula Group. In addition, preliminary data collected from the western Ogilvie Mountains draws similarities between units PR1 and PR2 of the lower Fifteenmile Group and units A, B and C of the Pinguicula Group. Although preliminary results from the 2009 field season have resolved some of the unknowns surrounding the Pinguicula Group, they have also raised more questions.

Data and Resources

Additional Info

Field Value
Source
Version
Author
Author Email
Maintainer
Maintainer Email
Data Level
Agreement Required
Purpose Constraints
Redistribution Allowed
AI Training Allowed
Data Steward
Title (French)
Update Frequency unknown
Geographic Scope []
Criticality Level []
Sensitivity Level unrestricted
Language
Contact Person {"en": "Yukon Geological Survey", "fr": "Yukon Geological Survey"}
Contact Email eservices@gov.yk.ca
Data Dictionary []
Open Canada Date Published 2011-04-04 00:00:00
Open Canada Date Modified
Open Canada Subject ["science_and_technology"]
Open Canada Keywords {"en": ["ogilvie-mountains", "wernecke-mountains", "ygs-import", "ygs-import-20250711", "ygs-publications", "yukon-geological-survey"], "fr-t-en": ["Montagnes de l'Ogilvie", "montagnes de Wernecke", "importation d'ygs", "ygs-import-20250711", "publications de l'YGS", "enquête géologique du yukon"]}
Open Canada Collection federated
Principal Organization
Reference Data
Official Source