US EPA

1439339 

Journal Article 

Sedimentary facies of Gulcheru quartzite in the southwestern part of the Cuddapah basin and their implication in deciphering the depositional environment 

Basu, H; Gangadharan, GR; Kumar, S; Sharma, UP; Rai, AK; Chaki, A 

2007 

Yes 

Journal of the Geological Society of India
ISSN: 0016-7622
EISSN: 0974-6889 

69 

2 

347-358 

WOS:000245722500017 

Middle Proterozoic Gulcheru Quartzite marks the onset of
sedimentation, after the Eparchacan unconformity, in the Cuddapah Basin. In the southwestern
margin of the basin it is made up dominantly of orthoquartzites. On the basis of lithology,
stratigraphic relationship, bedding characteristics, texture and colour of sediments and
sedimentary structures, five lithofacies were recognized within Gulcheru Quartzite. The Gulcheru
Quartzite, though dominantly of shallow marine origin, shows imprints of other depositional
regimes. Detailed interpretation of the facies and study of their field relationships reveal that
pink massive quartzite, the lowermost unit of Gulcheru. Quartzite, is of fluvio-aeolian origin.
Later marine transgression led to the development of a moderate to low energy beach, which
evolved with time into a barrier-spit complex. 

depositional environment; facies analysis; Fluvio-aeolian; barrier-spit; Gulcheru quartzite; Cuddapah Basin; Andhra Pradesh