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Wagad Sandstone Formation
Click to display on map of the Ancient World at:
Wagad Sandstone Fm base reconstruction

Wagad Sandstone Fm

Period: 
Jurassic, Cretaceous

Age Interval: 
Oxfordian to Albian


Province: 
W.India Kutch Basin

Type Locality and Naming

The lower part of Wagad Sandstone is described from Kantkoti scraps and the upper part is described from Gandak village (Biswas, 1977)

Synonym: Wagad Sandstone

[Fig. Geological and structural map of Kutch, also showing the onshore and offshore wells drilled for oil exploration. (Map by Rasoul Sorkhabi in GeoExpro Dec2014, based on various sources including S.K. Biswas, Current Science, 25May2005)]


Lithology and Thickness

Sandstone. Dominantly coarse- to medium-grained felspathic sandstone with minor shale, locally with plant fossils. In the western Wagad, the lower part (Kanthkoti Member) contains shales and sandstone with marine fossils. The upper part (Gamdau member) consists of current-bedded felspathic sandstone with ferruginous sandstone bands with grey shale with plant fossils. In the type area it is +368 m.


Lithology Pattern: 
Coarse-grained sandstone


Relationships and Distribution

Lower contact

Marked by a fossiliferous calcareous sandstone, red ferruginous band on the top of the thick underlying shale beds of Khadir Fm

Upper contact

Covered by recent sediments

Regional extent


GeoJSON

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Fossils

Ptylophyllum sp. Astarte sp., Gryphea sp., Belminites sp. & Trigonia sp.


Age 

Argovian (Oxfordian) to Albian = Upper Jurassic- Lower Cretaceous

Age Span: 

    Beginning stage: 
Oxfordian

    Fraction up in beginning stage: 
0.5

    Beginning date (Ma): 
158.16

    Ending stage: 
Albian

    Fraction up in the ending stage: 
1.0

    Ending date (Ma):  
100.50

Depositional setting

The upper part of the sequence in western Wagad and the entire sequence in eastern Wagad is fluviatile to deltaic. The lower part in western Wagad, however, is marine to sub-littoral.


Depositional pattern:  


Additional Information


Compiler:  

Modified from Jitendriya Mishra (2009) Kutch-Saurasthra Basin, Chap. 17 in ONGC Bull 44