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Wazura Formation
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Wazura Fm base reconstruction

Wazura Fm

Period: 
Devonian

Age Interval: 
Middle to Late Devonian


Province: 
NW Himalaya Kashmir Basin

Type Locality and Naming

The type location is on Chorgali ridge close to Wazura village, Liddar Valley, Kashmir. [Original Publication: Srikantia, S.V., Bhargava, O.N. 1983. Geology of the Palaeozoic sequence of the Kashmir Tethys Himalaya in the Lidder Valley. Journal Geological Society of India, 24 (7): 363-377.]

Synonyms: Aishmuqam Fm (Kumar et al., 1987)


Lithology and Thickness

Sandstone. 625 m and comprises quartz arenite with carbonate bands and local conglomerate beds. Quartz arenite with carbonate bands and local conglomerate beds with Crossbedding, rain drop prints, sun cracks and hummocky crossbedding (Bhargava 2015). Earlier source: Variegated quartz arenite + siltstone (A-Member), Yellowish siltstone+ quartz-arenite (B-Member).


Lithology Pattern: 
Sandstone


Relationships and Distribution

Lower contact

The Wazura Formation rests conformably over the Muth Fm Quartzite.

Upper contact

It forms a transition between the underlying Muth Fm and the overlying Syringothyris Limestone Fm (Aishmuqam Fm of Srikantia and Bhargava, 1983).

Regional extent

The Wazura Formation is an expanded succession of the underlying transition between the Muth Fm and the Lipak Fm recorded in the Spiti Valley.


GeoJSON

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Fossils

No definite fossils are known from the Wazura Formation.


Age 

The Wazura Formation may be equivalent of the basal part of the Lipak Fm, which has yielded Givetian and Frasnian conodonts (Draganits et al, 2002) and thus may represent Middle-Late Devonian age. [Base put here as mid-Givetian to be consistent with upper-limit to Muth Fm in other regional columns.]

Age Span: 

    Beginning stage: 
Givetian

    Fraction up in beginning stage: 
0.5

    Beginning date (Ma): 
382.10

    Ending stage: 
Famennian

    Fraction up in the ending stage: 
1.0

    Ending date (Ma):  
359.30

Depositional setting

Cross-bedding, rain drop prints, sun cracks and hummocky cross-bedding are present in the Wazura Formation. The Wazura Formation was deposited in beach to subtidal of supratidal environments.


Depositional pattern:  


Additional Information


Compiler:  

O.N. Bhargava & Birendra Singh