The Heart's Content Formation is a

formation Formation may refer to: Linguistics * Back-formation, the process of creating a new lexeme by removing or affixes * Word formation, the creation of a new word by adding affixes Mathematics and science * Cave formation or speleothem, a secondar ...

of dark grey/black shales and mudstones, with occasional silts and sands, cropping out in

Newfoundland Newfoundland and Labrador (; french: Terre-Neuve-et-Labrador; frequently abbreviated as NL) is the easternmost province of Canada, in the country's Atlantic region. The province comprises the island of Newfoundland and the continental region ...

References

Ediacaran Newfoundland and Labrador Geologic formations of Newfoundland and Labrador Shale formations Mudstone formations {{Canada-geologic-formation-stub