Ludfordien

Also known as Ludfordian Stage, Ludfordian Age

In the geologic timescale, the Ludfordian is the upper of two chronostratigraphic stages within the Ludlow Series. Its age is the late Silurian Period, and within both the Palaeozoic Era and Phanerozoic Eon. The rocks assigned to the Ludfordian date to between 425.0 ± 1.5 Ma and 422.7 ± 1.6 Ma (million years ago). The Ludfordian Stage succeeds the Gorstian Stage and precedes the Pridoli Epoch. It is named for the village of Ludford in Shropshire, England. The GSSP for the Ludfordian is represented as a thin shale seam, coincident with the base of the Leintwardine Formation, overlying the Bring

Key facts

Geologic timespan.name: Ludfordian
Geologic timespan.color: Ludfordian
Geologic timespan.time_start: 425.0
Geologic timespan.time_start_uncertainty: 1.5
Geologic timespan.time_end: 422.7
Geologic timespan.time_end_uncertainty: 1.6
Geologic timespan.image_map: Geology of Asia 425Ma.jpg
Geologic timespan.caption_map: Paleogeography of the Ludfordian, 425 Ma
Geologic timespan.timeline: Silurian
Geologic timespan.name_formality: Formal
Geologic timespan.name_accept_date: 1980
Geologic timespan.celestial_body: earth

Article · Nederlands

Het geologisch tijdperk Ludfordien (Vlaanderen: Ludfordiaan), is een tijdsnede (in de stratigrafie een etage) in het Laat-Siluur (Ludlow). Het Ludfordien duurde van 425,6 ± 0,9 tot 423,0 ± 2,3 Ma. Het werd voorafgegaan door het Gorstien en na (op) het Ludfordien komt het Pridoli.

Abstract from DBpedia / Wikipedia · CC BY-SA