volcanic rocks. Stratigraphy has three related subfields: lithostratigraphy (lithologic stratigraphy), biostratigraphy (biologic stratigraphy), and chronostratigraphy...

Stratigraphy is a key concept to modern archaeological theory and practice. Modern excavation techniques are based on stratigraphic principles. The concept...

Sequence stratigraphy is a branch of geology, specifically a branch of stratigraphy, that attempts to discern and understand historic geology through time...

classified together to form a group. Formations are the fundamental unit of stratigraphy. Groups may sometimes be combined into supergroups. Groups are useful...

central to the geologic discipline of stratigraphy, and the formation is the fundamental unit of stratigraphy. Formations may be combined into groups...

geologic time is the responsibility of the International Commission on Stratigraphy (ICS), a constituent body of the International Union of Geological Sciences...

Boundaries and names are established by the International Commission on Stratigraphy (ICS) of the International Union of Geological Sciences. As of 2008,...

The International Commission on Stratigraphy (ICS), sometimes unofficially referred to as the "International Stratigraphic Commission", is a daughter or...

A system in stratigraphy is a sequence of strata (rock layers) that were laid down together within the same corresponding geological period. The associated...

and Mississippian Series. As of 2008, the International Commission on Stratigraphy had not yet named all four series of the Cambrian. Currently series are...

Chronostratigraphy Glaciology Magnetostratigraphy Sedimentology Sequence stratigraphy Stratigraphy 2004 North American Commission on Stratigraphic Nomenclature (2005)...

Retrieved 2009-01-18. Saltzman, Matthew R (2002). "Carbon isotope (d13C) stratigraphy across the Silurian-Devonian transition in North America: evidence for...

Reverse stratigraphy (sometimes known as inverted stratigraphy) is the result of a process whereby one sediment is unearthed by human or natural actions...

Stratigraphy and Geological Correlation is a bimonthly peer-reviewed scientific journal covering fundamental and applied aspects of stratigraphy. It was...

The Stratigraphy of the Cambrian period currently has several schemes used for ordering geologic formations from the period. The International Commission...

ISBN 978-0-486-61708-4. International Commission on Stratigraphy. Archived September 20, 2005, at the Wayback Machine. stratigraphy.org. Amelin, Y. (2002). "Lead Isotopic...

United States Geological Survey and the International Commission on Stratigraphy regard the term as informal. Because the span of time falling under the...

geological unit. The Subcommission on Quaternary Stratigraphy (SQS) of the International Commission on Stratigraphy (ICS) had a working group to determine whether...

eventually became the coal beds characteristic of the Carboniferous stratigraphy evident today. The later half of the period experienced glaciations,...

by Nicholas Steno, including the so-called law of superposition and stratigraphy, used to estimate the geological histories of Earth and the Moon, are...

ISBN 9780495011484. Boggs, Sam (2006). Principles of sedimentology and stratigraphy (4th ed.). Upper Saddle River, N.J.: Pearson Prentice Hall. p. 405. ISBN 0131547283...

Meghalayan age is the name given in 2018, by the International Commission on Stratigraphy, to the current age or latest geologic age – or uppermost stage of the...

longer recognized as a formal unit by the International Commission on Stratigraphy. The span of the Tertiary is subdivided into the Paleocene (66–56 million...

"Major Divisions". Subcommission on Quaternary Stratigraphy. International Commission on Stratigraphy. Retrieved 17 December 2024. For the top of the...

stratification such as spits or planums. In his Principles of archaeological stratigraphy Harris first proposed the need for each unit of stratification to have...

in the Mesozoic and Paleozoic Eras. The International Commission on Stratigraphy (ICS) once proposed that the Quaternary be considered a sub-era (sub-erathem)...

fossils (graptolites, trilobites, ammonites, ...) in the subfield of the stratigraphy named biostratigraphy. It has been suggested that Eoconodontus notchpeakensis...

The Flat Landing Brook Formation is a geological formation in Gloucester County of northern New Brunswick, Canada. It consists mostly of volcanic rocks...

Cenozoic Era in the geologic time scale of the International Commission on Stratigraphy (ICS), as well as the current and most recent of the twelve periods of...

(358.9 to 346.7 mya) The lower two come from European stratigraphy, the top from Russian stratigraphy. Besides Europe and Russia, there are many local subdivisions...