Meanings
nounmarker horizon (plural marker horizons)
plural marker horizons
- A stratigraphic unit of distinctive lithology with a wide geographical extent used in stratigraphic correlation.
Synonyms: chronohorizon, key bed, marker bed
Synonyms & antonyms
nounA stratigraphic unit of distinctive lithology with a wide geographical extent used in stratigraphic correlation.
Also see
Cite this entry
APA
marker horizon. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/marker%20horizon
MLA
“marker horizon.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/marker%20horizon. Accessed November 4, 2026.
Chicago
WatkinsX Dictionary, s.v. “marker horizon,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/marker%20horizon.
Source: marker horizon on Wiktionary, CC BY-SA 4.0.