Home Multi-Country Search About Admin Login
Cenozoic
Mesozoic
Paleozoic
Neoproterozoic
Mesoproterozoic
Paleoproterozoic

Search by
Select Region(s) to search
Hold Ctrl (Windows/Linux) or Command (Mac) to select multiple
Mallamapalli Gr
Click to display on map of the Ancient World at:
Mallamapalli Gr base reconstruction

Mallamapalli Gr

Period: 
Statherian

Age Interval: 
late Statherian


Province: 
Proterozoic S.India Pranhita-Godavari west basin

Type Locality and Naming


Lithology and Thickness

Sandstone to claystone. Upward succession of Bollapalli Fm (alluvial-tida), Pandikunta Limestone Fm, then Karlai Shale Fm (or Pandikunta Shale Fm). (Fig. – images A and B)

[Figure: Pranhita-Godavari valley basin Field photographs illustrating lithology and sedimentary structures. (A) Bollapalli Fm - Sandstones. (B) Pandikunta Limestone Fm - Stromatolites. (C) lower part of Mulug Gr - Intercalated conglomerate and sandstone. (D) Rajaram Fm - Limestones. (E) Sullavai Gr Venkatpur Sandstone Fm - Large aeolian cross-strata. (F) Albaka Gr - Cross-stratified sandstone. (G) Somandevara Quartzite Fm - Rippled unit. (H) Bodela Vagu Fm - Laminated lime mudstone. (I) Somnur Fm - Heterolithic sandstone-shale with profuse desiccation crack in-fills. (J) Tarur Nala Fm - Ash beds of Kotturu Somanpalli. (K) Tarur Nala Fm - Graywacke-shale turbidite with cherty intervals. (from Saha et al., 2016)]


Lithology Pattern: 
Continental marl


Relationships and Distribution

Lower contact

Unconformity onto Karimnagar granulate and granite gneiss

Upper contact

Unconformity, overlain by Jakaram/Damala Gutta Fm at base of Mulug Gr

Regional extent

Approximately coeval with Devalmari Gr in Pranhita-Godavari east basin


GeoJSON

{"type":"Feature","geometry":{"type":"MultiPolygon","coordinates":[[[[79.21,19.16],[79.59,19.1],[81.35,16.61],[81,16.43],[79.21,19.16]]]]}}

Fossils


Age 


Age Span: 

    Beginning stage: 
Statherian

    Fraction up in beginning stage: 
0.5

    Beginning date (Ma): 
1,700.00

    Ending stage: 
Statherian

    Fraction up in the ending stage: 
0.75

    Ending date (Ma):  
1,650.00

Depositional setting

Upward deepening from alluvial fan to carbonate shelf; the last inundated by sea-level rise culminating in the thick shales of the Karlai Shale Fm (or Pandikunta Shale Fm)


Depositional pattern:  


Additional Information


Compiler:  

From: Saha D. (Dilip), Patranabis-Deb, S., and Colllins, A.S. (2016) Proterozoic stratigraphy of southern Indian cratons and global context. In: Stratigraphy & Timescales, 1: 1-59.