bn:02266177n
Noun Concept
Categories: Sedimentology, Geochronology, Stratigraphy
EN
marker horizon  Chronohorizon  key bed  marker bed
EN
Marker horizons are stratigraphic units of the same age and of such distinctive composition and appearance, that, despite their presence in separate geographic locations, there is no doubt about their being of equivalent age and of common origin. Wikipedia
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EN
Marker horizons are stratigraphic units of the same age and of such distinctive composition and appearance, that, despite their presence in separate geographic locations, there is no doubt about their being of equivalent age and of common origin. Wikipedia
A distinctive stratigraphic unit, of the same age across several locations Wikipedia Disambiguation
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