5-540: [REDACTED] Look up chron in Wiktionary, the free dictionary. Chron may refer to: Science [ edit ] Chronozone or chron, a term used for a time interval in chronostratigraphy Polarity chron or chron, in magnetostratigraphy, the time interval between polarity reversals of the Earth's magnetic field Other [ edit ] Chron (album) ,
10-603: A 2014 album by Arve Henriksen Houston Chronicle , a newspaper whose website, until 2012, was Chron.com See also [ edit ] Chrono (disambiguation) Topics referred to by the same term [REDACTED] This disambiguation page lists articles associated with the title Chron . If an internal link led you here, you may wish to change the link to point directly to the intended article. Retrieved from " https://en.wikipedia.org/w/index.php?title=Chron&oldid=1252535470 " Category : Disambiguation pages Hidden categories: Short description
15-608: A chronozone be defined as smaller than a geological stage . Another early use was hierarchical in that Harland et al. (1989) used "chronozone" for the slice of time smaller than a faunal stage defined in biostratigraphy . The ICS superseded these earlier usages in 1994. The key factor in designating an internationally acceptable chronozone is whether the overall fossil column is clear, unambiguous, and widespread. Some accepted chronozones contain others, and certain larger chronozones have been designated which span whole defined geological time units, both large and small. For example,
20-492: Is different from Wikidata All article disambiguation pages All disambiguation pages Chronozone A chronozone or chron is a unit in chronostratigraphy , defined by events such as geomagnetic reversals (magnetozones), or based on the presence of specific fossils (biozone or biochronozone). According to the International Commission on Stratigraphy , the term "chronozone" refers to
25-411: The rocks formed during a particular time period, while "chron" refers to that time period. Although non-hierarchical, chronozones have been recognized as useful markers or benchmarks of time in the rock record . Chronozones are non-hierarchical in that chronozones do not need to correspond across geographic or geologic boundaries, nor be equal in length. Although a former, early constraint required that
#145854