Definition of Holkerian. Meaning of Holkerian. Synonyms of Holkerian

- The Holkerian is a sub-stage of the Viséan stage of the International Commission on Stratigraphy (ICS) geological timescale. It is one of five sub-stages...
- chronostratigraphy, the British sub-stage of the Carboniferous period, the "Holkerian" derives its name from Holker Hall. The land on which the house stands...
- five substages. From youngest to oldest, these are: Brigantian Asbian Holkerian Arundian Chadian (the lower part of this substage falls in the Tournaisian)...
- doctoral research investigated the foraminiferal stratigraphy of the Holkerian, Asbian and Brigantian stages of the British lower carboniferous and was...
- area: Knockcrushen Formation (wackestones, packstones and mudstones; of Holkerian age) Derbyhaven Formation (packstones and mudstones with some mudstones...
- Ravenstonedale Group Stratigraphic range: Courceyan to Holkerian substages of Carboniferous Type Group Sub-units Raydale Dolomite, M****tt and Penny Farm...
- Cowside. The underlying stone of the valley floor is Cove Limestone (Holkerian), but at the valley sides and tops, it consists of Gordale Limestone,...
- (Mississippian). Lethiscus is known from only a single specimen from the Holkerian Stage (Middle Viséan) of the Early Carboniferous (Middle Mississippian)...
- magnesium). This subgroup was deposited in equatorial seas largely during the Holkerian (British regional) substage of the Viséan stage of the Carboniferous,...
- Border Group Stratigraphic range: Chadian to Holkerian substages of Carboniferous Type Group Sub-units Lyne and Fell Sandstone formations, Kershopefoot...