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Marare Mudstones and Grits Formation

Marare Mudstones and Grits Fm

Period: 
Permian

Age Interval: 
Middle Permian (Roadian)


Province: 
Zimbabwe-Mozambique

Type Locality and Naming

Save Basin (Southeastern Zimbabwe). Named for local geographic features within the Save Basin (historically the Sabi Basin) of southeastern Zimbabwe. Upper formation in Ecca Gr in Save Basin

Synonym:


Lithology and Thickness

A mixed terrestrial clastic sequence consisting predominantly of mudstones and grits (coarse, angular sandstones). 


Lithology Pattern: 
Clayey sandstone


Relationships and Distribution

Lower contact

Conformably overlies the Marare Coaly Shale Fm and the underlying Mkwasine Grits and Mudstones Fm (or Malilongwe Shale).

Upper contact

Conformably overlain by the Mkururwe Alternations Unit Fm (which is the regional equivalent of the Molteno Fm).

Regional extent

Geographically restricted to the Save Basin in southeastern Zimbabwe. Upper Ecca Gr to basal Beaufort Gr equivalent in the eastern rift basins. It is chronostratigraphically related to the upper portions of the coal-bearing sequences in southern Africa.


GeoJSON

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Fossils


Age 

Middle Permian (Roadian)

Age Span: 

    Beginning stage: 
Roadian

    Fraction up in beginning stage: 
0.0

    Beginning date (Ma): 
274.37

    Ending stage: 
Roadian

    Fraction up in the ending stage: 
1.0

    Ending date (Ma):  
269.21

Depositional setting

Terrestrial fluvial, floodplain, and paludal (swamp) environments.


Depositional pattern:  


Additional Information


Compiler:  

From the O. Catuneanu et al. / Journal of African Earth Sciences 43 (2005) 211–253; Barber, B. (1987): The Save-Runde coal area, Save-Limpopo basin. Records of Zimbabwe Coalfields.