Marker Bed

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marker bed [′märk·ər ‚bed]

(geology)

A stratified unit with distinctive characteristics making it an easily recognized geologic horizon.

A rock layer which accounts for a characteristic portion of a seismic refraction time-distance curve.

key bed

Marker Bed

a bed in rock strata that is distinctive owing to structure, color, great density, the presence of concretions and fossils, or any other features that make it possible to trace it when correlating sections and preparing geological maps. It differs in principle from the stratigraphic horizon, which is based on a set of organic remains and includes beds of different facies types.

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No references found			Recent fieldwork has been focused on examining the stratigraphic relationships between fossil localities and laterally continuous geological marker beds in the Great Divide Basin. Anthropology by Michigan Academician The altitude of the marker bed varies from about 16 m a. The sedimentary sequence recovered from the Voka outcrops, ... by Molodkov, Anatoly; Bolikhovskaya, Nataliya; Miidel, Avo; Ploom, Kuldev / Estonian Journal of Earth Sciences The top of the lower section of the Porters Creek Formation is often marked by an indurated, glauconitic siltstone or mudstone that can be used as a marker bed for structural mapping. Geology of the Walnut Miss.-Tenn. 7.5 minute topographic quadrangle by Swann, Charles T. / Journal of the Mississippi Academy of Sciences			Mark, East German Mark, Gospel according to Mark, Herman Francis Mark, King Mark, Saint Mark, West German mark-hold Mark-Houwink equation mark-space multiplier mark-space ratio mark-sweep garbage collection mark-to-space ratio mark-to-space transition mark-up Marka Markakol Markarian, Maro Markarian, Maro Egishevna Markarian, Oganes Markarian, Oganes Sarkisovich markdown marked face Markelius, Sven Marker marker beacon Marker Bed marker buoy marker gene Market market analysis market cap Market Capacity Market Conditions market cross market garden market gardening market hall market house Market Output market price market research market town Market, Loan Capital Marketing marketing board marketplace marketroid Markets, Gold marketspace Markevich, Aleksandr Markevich, Aleksandr Prokofevich			markedness markedness Markee Markel Basic Health Insurance Markel International Insurance Company Limited Markel International Insurance Company Ltd. Markelius, Sven Marken Marken Marken Marken Marken marker marker marker marker marker Marker (telecommunications) Marker and Cellular Management Unit marker animals marker animals marker animals marker animals marker animals Marker assisted selection marker bacteria marker bacteria marker bacteria Marker beacon Marker beacon Marker Bed Marker buoy Marker gene Marker gene marker genes marker genes marker genes marker genes marker genes marker of choice Marker pen Marker pen Marker pen Marker pen Marker pen marker pens marker pens marker pens marker pens marker pens Marker Radio Beacon Marker Separation Property marker ship marker trait Marker-Controlled Watershed Segmentation Marker-to-Marker Markers Markers Markers Markers Markers

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