Dalradian Supergroup

E28519
geologic supergroup metamorphic rock sequence

The Dalradian Supergroup is a thick sequence of late Precambrian to early Paleozoic metamorphic sedimentary and volcanic rocks extensively exposed in the Scottish Highlands and parts of Ireland.

Jump to: Surface forms Statements Referenced by

Observed surface forms (2)

Surface form Occurrences
Borrowdale Volcanic Group rocks 1
Dalradian rocks 1

Statements (49)

Predicate Object
instanceOf geologic supergroup ⓘ
metamorphic rock sequence ⓘ
containsFossils Ediacaran microfossils ⓘ
trace fossils ⓘ
containsRockType marble ⓘ
metabasic rocks ⓘ
metavolcanic rocks ⓘ
pelite ⓘ
psammite ⓘ
quartzite ⓘ
schist ⓘ
containsStructure cleavage ⓘ
folds ⓘ
thrust faults ⓘ
country Ireland ⓘ
United Kingdom ⓘ
depositionalEnvironment deep marine basin ⓘ
marine shelf ⓘ
volcanic arc-related settings ⓘ
economicImportance host to base metal mineralization ⓘ
host to gold mineralization ⓘ
geologicAge Neoproterozoic ⓘ
early Paleozoic ⓘ
late Precambrian ⓘ
hasSubdivision Appin Group ⓘ
Grampian Group ⓘ
surface form: Argyll Group

Grampian Group ⓘ
Southern Uplands ⓘ
surface form: Southern Highland Group
lithology metamorphic rocks ⓘ
metasedimentary rocks ⓘ
metavolcanic rocks ⓘ
locatedIn Scottish Highlands ⓘ
surface form: Grampian Highlands

Northern Ireland ⓘ
Ireland ⓘ
surface form: Republic of Ireland

Scottish Highlands ⓘ
metamorphicGrade amphibolite facies ⓘ
greenschist facies ⓘ
metamorphismRelatedTo Caledonian orogeny ⓘ
Caledonian orogeny ⓘ
surface form: Grampian orogeny
namedAfter Dál Riata ⓘ
overlies Lewisian complex basement ⓘ
Moine Supergroup ⓘ
partOf Caledonian orogeny ⓘ
surface form: Caledonian orogen
stratigraphicThickness several kilometres ⓘ
tectonicSetting passive continental margin ⓘ
timeSpanEnd Early Ordovician ⓘ
timeSpanStart Ediacaran ⓘ
underlies Lower Paleozoic cover sequences ⓘ
Old Red Sandstone ⓘ

Referenced by (3)

Full triples — surface form annotated when it differs from this entity's canonical label.

Gigha → hasGeology → Dalradian Supergroup ⓘ
this entity surface form: Dalradian rocks
Scafell Pike → material → Dalradian Supergroup ⓘ
this entity surface form: Borrowdale Volcanic Group rocks
Highland Boundary Fault → northSideRockType → Dalradian Supergroup ⓘ