Blackhead Formation

{{Short description|Geologic formation in Newfoundland, Canada}}

{{for|the New Zealand rock formation|Blackhead (New Zealand)}}

{{Infobox rockunit

| image =

| caption =

| type = Formation

| age = {{Geological range|Ediacaran}}

| prilithology = Red-Gray Sandstone{{cite web|url = https://www.gov.nl.ca/iet/files/88-01.pdf |title=GEOLOGY OF THE AVALON PENINSULA, NEWFOUNDLAND}}

| otherlithology = Siltstone, Shale, Mudstone

| namedfor =

| namedby =

| region = Newfoundland and Labrador

| country = Canada

| coordinates =

| unitof = Signal Hill Group

| subunits = {{Cite web | url=http://geoatlas.gov.nl.ca/Default.htm | title=Newfoundland and Labrador Geoscience Atlas}}

• [Unnamed]
• Maddox Cove Member
• [Unnamed]
• Deadman's Bay member
• [Unnamed]

| underlies =

| overlies = Cuckold Formation

| thickness =

| extent =

| area =

| map = Blackhead Formation map.svg

| map_caption = Outcrop area in southeast Newfoundland

}}

The Blackhead Formation is an Ediacaran geological formation cropping out in Eastern Newfoundland, with five subdivisions, two of which are named: the Maddox Cove and Deadman's Bay members.{{Cite web | title=Welcome to the Department of Natural Resources Website | publisher=Newfoundland Dep. Mines Energy Rep | archive-url=https://archive.today/20050413031609/http://nr.gov.nl.ca/ | url=http://nr.gov.nl.ca/ | archive-date=2005-04-13}}