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Chelima dikes, Kurnool District, Andhra Pradesh, Indiai
Regional Level Types
Chelima dikesGroup of Dikes
Kurnool DistrictDistrict
Andhra PradeshState
IndiaCountry

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Latitude & Longitude (WGS84):
15° 26' 59'' North , 78° 43' 0'' East
Latitude & Longitude (decimal):
15.45000,78.71667
GRN:
N11E54
Area:
70 km2
Type:
Group of Dikes
Age:
1400 Ma
Geologic Time:
Calymmian
Reference for age:
Rao, N. V. Chalapathi (2007) Chelima Dykes, Cuddapah Basin, Southern India: A Review of the Age, Petrology, Geochemistry and Petrogenesis of World’s Oldest Lamproites. Journal of the Geological Society of India, 69 (3). 523-538 doi:10.17491/jgsi/2007/690307
Köppen climate type:
BSh : Hot semi-arid (steppe) climate
Mindat Locality ID:
335967
Long-form identifier:
mindat:1:2:335967:2
GUID (UUID V4):
0


More than 30 dikes occur within an area of 10 x 7 km, c. 6 km from Chelima railway station. They are emplaced in Proterozoic phyllites, shales, slates, they are 1-5m wide and up to c.2 km long.

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Mineral List


7 valid minerals.

Rock Types Recorded

Note: data is currently VERY limited. Please bear with us while we work towards adding this information!

Select Rock List Type

Alphabetical List Tree Diagram

Detailed Mineral List:

ⓘ 'Apatite'
Formula: Ca5(PO4)3(Cl/F/OH)
ⓘ 'Chlorite Group'
ⓘ Dolomite
Formula: CaMg(CO3)2
ⓘ 'Fayalite-Forsterite Series'
ⓘ Ilmenite
Formula: Fe2+TiO3
ⓘ Perovskite
Formula: CaTiO3
ⓘ Phlogopite
Formula: KMg3(AlSi3O10)(OH)2
ⓘ Rutile
Formula: TiO2
ⓘ 'Serpentine Subgroup'
Formula: D3[Si2O5](OH)4
ⓘ Talc
Formula: Mg3Si4O10(OH)2
ⓘ Tetraferriphlogopite
Formula: KMg3(Fe3+Si3O10)(OH,F)2

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 4 - Oxides and Hydroxides
ⓘIlmenite4.CB.05Fe2+TiO3
ⓘPerovskite4.CC.30CaTiO3
ⓘRutile4.DB.05TiO2
Group 5 - Nitrates and Carbonates
ⓘDolomite5.AB.10CaMg(CO3)2
Group 9 - Silicates
ⓘTalc9.EC.05Mg3Si4O10(OH)2
ⓘPhlogopite9.EC.20KMg3(AlSi3O10)(OH)2
ⓘTetraferriphlogopite9.EC.20KMg3(Fe3+Si3O10)(OH,F)2
Unclassified
ⓘ'Chlorite Group'-
ⓘ'Fayalite-Forsterite Series'-
ⓘ'Serpentine Subgroup'-D3[Si2O5](OH)4
ⓘ'Apatite'-Ca5(PO4)3(Cl/F/OH)

List of minerals for each chemical element

HHydrogen
Hⓘ PhlogopiteKMg3(AlSi3O10)(OH)2
Hⓘ TalcMg3Si4O10(OH)2
Hⓘ TetraferriphlogopiteKMg3(Fe3+Si3O10)(OH,F)2
Hⓘ Serpentine SubgroupD3[Si2O5](OH)4
Hⓘ ApatiteCa5(PO4)3(Cl/F/OH)
CCarbon
Cⓘ DolomiteCaMg(CO3)2
OOxygen
Oⓘ DolomiteCaMg(CO3)2
Oⓘ IlmeniteFe2+TiO3
Oⓘ PerovskiteCaTiO3
Oⓘ PhlogopiteKMg3(AlSi3O10)(OH)2
Oⓘ RutileTiO2
Oⓘ TalcMg3Si4O10(OH)2
Oⓘ TetraferriphlogopiteKMg3(Fe3+Si3O10)(OH,F)2
Oⓘ Fayalite-Forsterite Series
Oⓘ Serpentine SubgroupD3[Si2O5](OH)4
Oⓘ ApatiteCa5(PO4)3(Cl/F/OH)
FFluorine
Fⓘ TetraferriphlogopiteKMg3(Fe3+Si3O10)(OH,F)2
Fⓘ ApatiteCa5(PO4)3(Cl/F/OH)
MgMagnesium
Mgⓘ DolomiteCaMg(CO3)2
Mgⓘ PhlogopiteKMg3(AlSi3O10)(OH)2
Mgⓘ TalcMg3Si4O10(OH)2
Mgⓘ TetraferriphlogopiteKMg3(Fe3+Si3O10)(OH,F)2
Mgⓘ Fayalite-Forsterite Series
AlAluminium
Alⓘ PhlogopiteKMg3(AlSi3O10)(OH)2
SiSilicon
Siⓘ PhlogopiteKMg3(AlSi3O10)(OH)2
Siⓘ TalcMg3Si4O10(OH)2
Siⓘ TetraferriphlogopiteKMg3(Fe3+Si3O10)(OH,F)2
Siⓘ Fayalite-Forsterite Series
Siⓘ Serpentine SubgroupD3[Si2O5](OH)4
PPhosphorus
Pⓘ ApatiteCa5(PO4)3(Cl/F/OH)
ClChlorine
Clⓘ ApatiteCa5(PO4)3(Cl/F/OH)
KPotassium
Kⓘ PhlogopiteKMg3(AlSi3O10)(OH)2
Kⓘ TetraferriphlogopiteKMg3(Fe3+Si3O10)(OH,F)2
CaCalcium
Caⓘ DolomiteCaMg(CO3)2
Caⓘ PerovskiteCaTiO3
Caⓘ ApatiteCa5(PO4)3(Cl/F/OH)
TiTitanium
Tiⓘ IlmeniteFe2+TiO3
Tiⓘ PerovskiteCaTiO3
Tiⓘ RutileTiO2
FeIron
Feⓘ IlmeniteFe2+TiO3
Feⓘ TetraferriphlogopiteKMg3(Fe3+Si3O10)(OH,F)2
Feⓘ Fayalite-Forsterite Series

Geochronology

Mineralization age: Proterozoic : 2500 Ma to 541 ± 1.0 Ma

Important note: This table is based only on rock and mineral ages recorded on mindat.org for this locality and is not necessarily a complete representation of the geochronology, but does give an indication of possible mineralization events relevant to this locality. As more age information is added this table may expand in the future. A break in the table simply indicates a lack of data entered here, not necessarily a break in the geologic sequence. Grey background entries are from different, related, localities.

Geologic TimeRocks, Minerals and Events
Precambrian
 Proterozoic
ⓘ PhylliteProterozoic
(541 - 2500 Ma)
ⓘ ShaleProterozoic
(541 - 2500 Ma)
ⓘ SlateProterozoic
(541 - 2500 Ma)
  
   
  Mesoproterozoic
   Ectasian
ⓘ Lamproite (youngest age)1225 Ma
ⓘ Lamproite (oldest age)1350 ± 52 Ma
   Calymmian
ⓘ Phlogopite1417.8 ± 8.2 Ma
    

Other Regions, Features and Areas containing this locality

AsiaContinent
India
Indian Plate (India Plate)Tectonic Plate

This page contains all mineral locality references listed on mindat.org. This does not claim to be a complete list. If you know of more minerals from this site, please register so you can add to our database. This locality information is for reference purposes only. You should never attempt to visit any sites listed in mindat.org without first ensuring that you have the permission of the land and/or mineral rights holders for access and that you are aware of all safety precautions necessary.

References

Appavadhanulu, K. (1966). Minette and riebeckite-kalisyenite dykes in some upper Cuddapah rocks, Kurnool District, Andhra Pradesh. Records of the Geological Survey of India, 94(2), 303-304.
Bergman, S.C., Baker, N.R. (1984) A new look at the Proterozoic dikes from Chelima, Andhra Pradesh, India: diamondiferous lamproites? Geological Society of America Abstracts with Programs: 16(6): 444.
Krishnamurthy, P. (1988) Carbonatites of India. Exploration and Research for Atomic Minerals: 1: 111-171.
Chalapathi Rao, N. V.; Miller, J. A.; Gibson, S. A.; Pyle, D. M.; Madhavan, V. (1999) Precise 40Ar/ 39Ar Age Determinations of the Kotakonda Kimberlite and Chelima Lamproite, India: Implication to the Timing of Mafic Dyke Swarm Emplacement in the Eastern Dharwar Craton. Journal Geological Society of India, 53 (4). 425-432 doi:10.17491/jgsi/1999/530405
Rao, N. V. Chalapathi (2007) Chelima Dykes, Cuddapah Basin, Southern India: A Review of the Age, Petrology, Geochemistry and Petrogenesis of World’s Oldest Lamproites. Journal of the Geological Society of India, 69 (3). 523-538 doi:10.17491/jgsi/2007/690307
Woolley, Alan R. (2019) Alkaline Rocks and Carbonatites of the World. Part 4: Antarctica, Asia and Europe (excluding the former USSR), Australasia and Oceanic Islands. The Geological Society of London. doi:10.1144/mpar4
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