Peninsular Gneiss

[4] The Archean gneisses and schists, which are the oldest rocks of the Indian Shield, constitute a considerable area of Peninsular India.

In most stratigraphic schemes, the peninsular gneisses are shown as the younger Archaean strata situated above the Sargur Group.

[5] The rocks of the Dharwar Group, which are mainly sedimentary in origin, occur in narrow elongated synclines resting on the gneisses found in Bellary district, Mysore and the Aravallis of Rajputana.

[3]A common enclave is a dark grey to black rock called amphibolite containing the minerals plagioclase feldspar and hornblende.

[3] b) In the Dharwar Craton studies done on the trondhjemites of Holenarsipur, major crust forming event are attributed through the Rb–Sr whole rock isochron ages.

[2] The Sargur schist belts within the Peninsular Gneiss could be the oldest suture zones in the Indian subcontinent.

[9] The topographic setting of the Lalbagh rock, from a layman's interest, is that in the western and northern directions it slopes steeply while it merges gently with soil in the east and south.

[4] The monument, located in the southern part of Bengaluru, 4 kilometres (2 mi) from the Legislature office complex of the Karnataka Government (Vidhana Soudha) within the Lalbagh gardens is easily approachable by road (Metro Map of the city in the Info box gives exact location).