- 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...
- (Mississippian).
Lethiscus is
known from only a
single specimen from the
Holkerian Stage (Middle Viséan) of the
Early Carboniferous (Middle Mississippian)...
- five substages. From
youngest to oldest,
these are:
Brigantian Asbian Holkerian Arundian Chadian (the
lower part of this
substage falls in the Tournaisian)...
- area:
Knockcrushen Formation (wackestones,
packstones and mudstones; of
Holkerian age)
Derbyhaven Formation (packstones and
mudstones with some mudstones...
-
doctoral research investigated the
foraminiferal stratigraphy of the
Holkerian,
Asbian and
Brigantian stages of the
British lower carboniferous and was...
-
Border Group Stratigraphic range:
Chadian to
Holkerian substages of
Carboniferous Type
Group Sub-units Lyne and Fell
Sandstone formations, Kershopefoot...
- Cowside. The
underlying stone of the
valley floor is Cove
Limestone (
Holkerian), but at the
valley sides and tops, it
consists of
Gordale Limestone,...
- chronostratigraphy, the
British sub-stage of the
Carboniferous period, the '
Holkerian'
derives its name from
Holker Hall. ****bria
portal Listed buildings in...
- The
limestone at
Scaleber Force is
either Late
Arundian stage, or the
Holkerian stage of the Viséan age limestone. The
waterfall is
located on Stockdale...
