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

Mangalore Fm

Period: 
Neogene

Age Interval: 
Late Miocene


Province: 
S.India Kerala Konkan Basin

Type Locality and Naming

SUBSURFACE: The type section is in the Well CSP-1, Interval is 1163-2060m and thickness is 897m. [Original Publication: Mathur, R.B., Sreekantswamy, H.N., Ananthakrishna, K., Srivatsava, U.C., Biswas, S.K., Krishna, A., Bhosale, J.S., Rao, K.V.N., Satyanarayana, Y., Rathod, G.D., Bose, P.K., and Karwal, S. 1993: Lithostratigraphy of Indian Petroliferous Basins, Document VI, Kerala Konkan Basin, KDMIPE, ONGC Publication, pp 1-33.]. A Sequence of claystones and shales met in well CSP-1 above the Cannore Fm has been named as Mangalore Fm.

[Figure 1: Location map of type section (after J.Mishra in Raju and Misra, 2009)]


Lithology and Thickness

Claystone. Calcareous claystone / clays and shales with occasional argillaceous siltstones.

[Figure 2: Lithostratigraphy of Kerala-Konkan Basin (from dghindia.gov.in)]


Lithology Pattern: 

Relationships and Distribution

Lower contact

Lower boundary is pronounced unconformity. Rest on the top of the Cannore Fm.

Upper contact

Partly Quilon Fm and upper boundary is unconformably overlain by Trichur Fm.

Regional extent


GeoJSON

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Fossils

Globorotalia acostaensis, Globigerinoidetrilobus along with Lenticulina sp.


Age 

Late Miocene

Age Span: 
Beginning stage: TortonianFraction up in beginning stage: 0.1Beginning date (Ma): Ending stage: MessinianFraction up in ending stage: 0.95Ending date (Ma):

    Beginning stage: 
Tortonian

    Fraction up in beginning stage: 
0.1

    Beginning date (Ma): 
11.19

    Ending stage: 
Messinian

    Fraction up in the ending stage: 
0.95

    Ending date (Ma):  
5.43

Depositional setting

Middle shelf.


Depositional pattern:  


Additional Information


Compiler:  

D.S.N Raju