Blomidon Formation

{{Infobox rockunit

| name = Blomidon Formation

| image = Minor normal faults.JPG

| caption = Faulted continental redbeds of the Blomidon Formation, Minas Basin North Shore, Nova Scotia

| type = Geological formation

| age = Norian-Rhaetian

| period = Rhaetian

| prilithology = Sandstone

| otherlithology = Mudstone

| namedfor = Cape Blomidon

| namedby = Klein, 1962

| region = Nova Scotia, New Brunswick

| country = Canada

| coordinates = {{coord|45|17|43|N|64|19|55|W|display=inline,title}}

| unitof = Newark Supergroup

| subunits =

| underlies = North Mountain Basalt

| overlies = Wolfville Formation

| thickness = {{convert|365|-|2500|m|ft|abbr=on}}

| extent =

| area =

| map =

| map_caption =

}}

The Blomidon Formation is a unit of Upper Triassic (Norian–Rhaetian) sedimentary rocks, which outcrops in Nova Scotia. At outcrop they reach a maximum thickness of {{convert|365|m|ft}}, but up to {{convert|1168|m|ft}} has been proven from well data and a thickness of up to {{convert|2500|m|ft}} has been inferred from seismic reflection data. It overlies the mainly Carnian Wolfville Formation and underlies the North Mountain Basalt.{{cite journal|last=Tanner|first=L.H.|year=1996|title=Formal definition of the Lower Jurassic McCoy Brook Formation, Fundy Rift Basin, eastern Canada|journal=Atlantic Geology|volume=32|pages=127–135|url=http://journals.hil.unb.ca/index.php/ag/article/viewFile/2083/2447|accessdate=15 December 2012}} The type section is exposed between Cape Blomidon ({{coord|45|17|43|N|64|19|55|W|display=inline}}) and Paddy Island ({{Coord|45.197372|N|64.359411|W|display=inline}}).{{cite book|last=Luttrell|first=Gwendolyn|title=Geological Survey Bulletin: 1572|year=c. 1989|publisher=U.S. Department of the Interior, Geological Survey|authorlink=Stratigraphic Nomenclature of the Newark Supergroup of Eastern North America}}