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Shimliguda, Pāderu, Eastern Ghats Belt, Visakhapatnam District, Andhra Pradesh, Indiai
Regional Level Types
Shimliguda- not defined -
Pāderu- not defined -
Eastern Ghats BeltBelt
Visakhapatnam DistrictDistrict
Andhra Pradesh- not defined -
IndiaCountry

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Latitude & Longitude (WGS84): 18° 18' 9'' North , 82° 57' 14'' East
Latitude & Longitude (decimal): 18.30264,82.95403
GeoHash:G#: tg6bpevk8
Köppen climate type:Aw : Tropical savanna, wet


The major rock unit is a leptynitic gneiss (quartz-plagioclase-garnet-K-feldspar) that is migmatitic in nature in places. This leptynitic gneiss contains foliation-parallel elongated enclaves of gneissic aluminous granulite. The gneissic foliations in both the aluminous granulite and the host migmatitic gneiss are parallel. Layer parallel bands of charnockitic gneiss (quartz-K-feldspar-orthopyroxene-plagioclase-garnet) are present in the host migmatite (Das et al., 2006).

Select Mineral List Type

Standard Detailed Strunz Dana Chemical Elements

Mineral List


5 valid minerals.

Detailed Mineral List:

Almandine
Formula: Fe2+3Al2(SiO4)3
Description: Composition: Pyrope 44, Almandine 53, (Grossular + Spessartine) 03.
Reference: American Mineralogist: 91: 375-384.
Cordierite
Formula: (Mg,Fe)2Al3(AlSi5O18)
Reference: American Mineralogist: 91: 375-384.
Sapphirine
Formula: Mg4(Mg3Al9)O4[Si3Al9O36]
Reference: American Mineralogist: 91: 375-384.
Sillimanite
Formula: Al2(SiO4)O
Reference: American Mineralogist: 91: 375-384.
Spinel
Formula: MgAl2O4
Reference: American Mineralogist: 91: 375-384.

List of minerals arranged by Strunz 10th Edition classification

Group 4 - Oxides and Hydroxides
'Spinel'4.BB.05MgAl2O4
Group 9 - Silicates
'Almandine'9.AD.25Fe2+3Al2(SiO4)3
'Cordierite'9.CJ.10(Mg,Fe)2Al3(AlSi5O18)
'Sapphirine'9.DH.45Mg4(Mg3Al9)O4[Si3Al9O36]
'Sillimanite'9.AF.05Al2(SiO4)O

List of minerals arranged by Dana 8th Edition classification

Group 7 - MULTIPLE OXIDES
AB2X4
Spinel7.2.1.1MgAl2O4
Group 51 - NESOSILICATES Insular SiO4 Groups Only
Insular SiO4 Groups Only with cations in [6] and >[6] coordination
Almandine51.4.3a.2Fe2+3Al2(SiO4)3
Group 52 - NESOSILICATES Insular SiO4 Groups and O,OH,F,H2O
Insular SiO4 Groups and O, OH, F, and H2O with cations in [4] and >[4] coordination
Sillimanite52.2.2a.1Al2(SiO4)O
Group 61 - CYCLOSILICATES Six-Membered Rings
Six-Membered Rings with Al substituted rings
Cordierite61.2.1.1(Mg,Fe)2Al3(AlSi5O18)
Group 69 - INOSILICATES Chains with Side Branches or Loops
Chains with Side Branches or Loops with P>2
Sapphirine69.2.1b.1Mg4(Mg3Al9)O4[Si3Al9O36]

List of minerals for each chemical element

OOxygen
O AlmandineFe32+Al2(SiO4)3
O Cordierite(Mg,Fe)2Al3(AlSi5O18)
O SapphirineMg4(Mg3Al9)O4[Si3Al9O36]
O SillimaniteAl2(SiO4)O
O SpinelMgAl2O4
MgMagnesium
Mg Cordierite(Mg,Fe)2Al3(AlSi5O18)
Mg SapphirineMg4(Mg3Al9)O4[Si3Al9O36]
Mg SpinelMgAl2O4
AlAluminium
Al AlmandineFe32+Al2(SiO4)3
Al Cordierite(Mg,Fe)2Al3(AlSi5O18)
Al SapphirineMg4(Mg3Al9)O4[Si3Al9O36]
Al SillimaniteAl2(SiO4)O
Al SpinelMgAl2O4
SiSilicon
Si AlmandineFe32+Al2(SiO4)3
Si Cordierite(Mg,Fe)2Al3(AlSi5O18)
Si SapphirineMg4(Mg3Al9)O4[Si3Al9O36]
Si SillimaniteAl2(SiO4)O
FeIron
Fe AlmandineFe32+Al2(SiO4)3
Fe Cordierite(Mg,Fe)2Al3(AlSi5O18)

Regional Geology

This geological map and associated information on rock units at or nearby to the coordinates given for this locality is based on relatively small scale geological maps provided by various national Geological Surveys. This does not necessarily represent the complete geology at this locality but it gives a background for the region in which it is found.

Click on geological units on the map for more information. Click here to view full-screen map on Macrostrat.org

Archean
2500 - 4000 Ma



ID: 3191080
Archean crystalline metamorphic rocks

Age: Archean (2500 - 4000 Ma)

Lithology: Crystalline metamorphic rocks

Reference: Chorlton, L.B. Generalized geology of the world: bedrock domains and major faults in GIS format: a small-scale world geology map with an extended geological attribute database. doi: 10.4095/223767. Geological Survey of Canada, Open File 5529. [154]

Data and map coding provided by Macrostrat.org, used under Creative Commons Attribution 4.0 License

References

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Year (asc) Year (desc) Author (A-Z) Author (Z-A)
Das, K., Bose, S., Ohnishi, I., Dasgupta, S. (2006) Garnet-spinel intergrowths in ultrahigh-temperature granulite, Eastern Ghats, India: Possible evidence of an early Tschermak-rich orthopyroxene during prograde metamorphism. American Mineralogist: 91: 375-384.


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