Herald Formation
Template:Short description Script error: No such module "Infobox".Script error: No such module "check for unknown parameters".
The Herald Formation is a stratigraphic unit of Late Ordovician age in the Western Canadian Sedimentary Basin.
It was defined in well Imperial Herald 1-31-1-20W2M by the Lower Paleozoic Names and Correlations Committee of the Saskatchewan Geological Society in 1958.[1]
Lithology
The Herald Formation is composed of dolomitic limestone and dolomite, which can be microcrystalline, argillaceous or microlaminated. [2] In the centre of the basin, it is represented by anhydrite.
Distribution
The Herald Formation reaches a maximum thickness of Script error: No such module "convert". in the Lake Alma area.[2]
Relationship to other units
The Herald Formation is disconformably overlain by the Stony Mountain Formation and conformably overlays the Yeoman Formation.[2]
It can be correlated with the Fort Garry Member of the Red River Formation in Manitoba and in the Williston Basin.
Subdivisions
In south-eastern Saskatchewan, the formation is divided in three units, corresponding to three sedimentation cycles:
References
<templatestyles src="Reflist/styles.css" />
Script error: No such module "Check for unknown parameters".
Script error: No such module "Navbox".