Shimliguda, Pāderu, Eastern Ghats Belt, Visakhapatnam District, Andhra Pradesh, India
|Latitude & Longitude (WGS84):||18° 18' 9'' North , 82° 57' 14'' East|
|Latitude & Longitude (decimal):||18.30264,82.95403|
|Köppen climate type:||Aw : Tropical savanna, wet|
Ref.: 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.
The major rock unit is a leptynitic gneiss (quartz-plagioclase-garnet-K-feldspar) that is migmatitic in nature In places, this Leptynitic gneiss contains fliation-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 f charnockitic gneiss (quartz-K-feldspar-orthopyroxene-plagioclase-garnet) are present in the host migmatite (K. Das, et al (2006)).
5 valid minerals.
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
2500 - 4000 Ma
|Archean intrusive and metamorphic terranes|
Age: Archean (2500 - 4000 Ma)
Comments: Mixtures of metamorphic and intrusive or plutonic rocks, tracts known as crystalline, migmatitic terranes, moderately to highly metamorphosed rocks of unknown origin with or without intrusions. This classification is inherently prone to variable interpretation, as other compilers might distinguish some packages by their metamorphic or gneissic protoliths, and the associated age ranges may be more variable.
Lithology: Intrusive and metamorphic terranes
Reference: Geological Survey of Canada. Generalized geological map of the world and linked databases. doi:10.4095/195142. Open File 2915d.