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Mitti Nadi Formation
Click to display on map of the Ancient World at:
Mitti Nadi Fm base reconstruction

Mitti Nadi Fm

Period: 
Neogene

Age Interval: 
Aquitanian to Burdigalian (early Miocene)


Province: 
W.India Kutch Basin

Type Locality and Naming

SUBSURFACE. Interval 2110-3645 m in Kutch - A well [Original Publication: Zutshi, P.L., Mittal, S.K and Shah, L. (1993) Lithostratigraphy of Indian Petroliferous Basins, Document IV, Kutch Saurashtra Basin, KDMIPE, ONGC Publication, pp 1-50.]

[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

Claystone and Limestone. 1535 m thickness in well Kutch-A. It can be divided into two members:

(i) Lower claystone member: consists of mainly grey sticky claystone, calcareous shale with occasional bends of sandstone, argillaceous and silty,

(ii) Upper Limestone member is consists of chalky limestone with claystone / shale streaks.


Lithology Pattern: 
Clayey limestone


Relationships and Distribution

Lower contact

Unconformable with Narayan Sarovar Fm. This also coincides with the bottom of Globorotalia kugleri partial range zone.

Upper contact

Non-conformable with overlying Kandla Fm.

Regional extent


GeoJSON

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Fossils

G.kugleri P.R.Z and Miogypsina globulina- M. (L.) excentrica assemblage in well Kutch-A; and large numbers of planktic foraminifera Globoguardrina globossa, G. cf. binaensis and Catapsydrax dissimilis faunal assemblages.


Age 

Aquitanian to Burdigalian

Age Span: 

    Beginning stage: 
Aquitanian

    Fraction up in beginning stage: 
0.5

    Beginning date (Ma): 
21.75

    Ending stage: 
Burdigalian

    Fraction up in the ending stage: 
0.25

    Ending date (Ma):  
19.34

Depositional setting

Lower part of the formation is deposited in middle to outer shelf, and upper part in inner shelf environment.


Depositional pattern:  


Additional Information


Compiler:  

D.S.N Raju