Series (stratigraphy)


Series (stratigraphy)

Series are subdivisions of rock layers made based on the age of the rock. A series is therefore a chronostratigraphic unit, unrelated to lithostratigraphy, which divides rock layers on their lithology. Series are subdivisions of systems and are themselves divided into stages.

Series is a term defining a unit of rocklayers formed in a certain interval in time; it is equivalent to the term "geological epoch" epoch criteria defining the interval of time itself, although the two words are sometimes confused in informal literature.

eries in the geological timescale

The geological timescale has all gSystems in the Phanerozoic eonothem subdivided into series. Some of these have their own names, in other cases a system is simply divided into a Lower, Middle and Upper series. The Cretaceous system is for example divided into the Upper Cretaceous and Lower Cretaceous series; while the Carboniferous system is divided in the Pennsylvanian and Mississippian series. In 2008, the International Commission on Stratigraphy had not yet named all four series of the Cambrian. Currently series are limited to the Phanerozoic, but the ICS has stated its intention of subdividing the three systems of the Neoproterozoic (Ediacaran, Cryogenian and Tonian) into stages too.

ystems and lithostratigraphy

Systems can include many lithostratigraphic units (for example formations, beds, members, etc.) of differing rock types that were being laid down in different environments at the same time. In the same way, a lithostratigraphic unit can include a number of systems or parts of them.

ee also

*Chronostratigraphy


Wikimedia Foundation. 2010.

Look at other dictionaries:

  • stratigraphy — stratigrapher, stratigraphist, n. stratigraphic /strat i graf ik/, stratigraphical, adj. stratigraphically, adv. /streuh tig reuh fee/, n. a branch of geology dealing with the classification, nomenclature, correlation, and interpretation of… …   Universalium

  • System (stratigraphy) — NOTOC A system in the natural sciences and stratigraphy is an idealized composite unit of the geologic record made up of a succession of rock layers that were laid down together within a certain corresponding geological time span, and are used in …   Wikipedia

  • Stage (stratigraphy) — In chronostratigraphy, a stage is a succession of rock strata laid down in an single age on the geologic timescale, which usually represents millions of years of deposition. A given stage of rock and the corresponding age of time will by… …   Wikipedia

  • List of characters in the Indiana Jones series — This is a list of characters in the Indiana Jones series.Introduced in Raiders of the Lost Ark Indiana JonesDr. Henry Walton Indiana Jones, Jr. (Harrison Ford), the titular character of the franchise, is an archaeologist and college professor… …   Wikipedia

  • Llandovery Series — ▪ geology       lowermost of four main divisions in the Silurian (Silurian Period) System, representing those rocks deposited worldwide during the Llandovery Epoch (443.7–428.2 million years ago). The name of the series is derived from the type… …   Universalium

  • Ludlow Series — ▪ geology       the third of four main divisions (in ascending order) making up the Silurian (Silurian Period) System; it represents all those rocks on a global basis deposited during the Ludlow Epoch (422.9–418.7 million years ago). The name is… …   Universalium

  • Bernician Series — In geology, Bernician Series was a term proposed by Samuel Pickworth Woodward in 1856 ( Manual of Mollusca , p. 409) for the lower portion of the Carboniferous System, below the Millstone Grit. The name was suggested by that of the ancient… …   Wikipedia

  • Série stratigraphique — Demande de traduction Series (stratigraphy) → …   Wikipédia en Français

  • Сантон — система отдел ярус Возраст Палеоген Палеоцен Датский меньш …   Википедия

  • Millenia — or Milenia is the plural of a Millennium meaning 1,000 years. Thus, Millenia takes on the meaning of more than 1,000 years, but in sets of 1,000 (e.g. 2,000, 3,000, 4,000...) may also refer to: Mall at Millenia, an upscale shopping mall in… …   Wikipedia


Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”

We are using cookies for the best presentation of our site. Continuing to use this site, you agree with this.