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Peninsular Gneiss or Peninsular Gniessic Complex are the gneissic complex of the metamorphics found all over the Indian Peninsula, on top of which, the supra-crustal Dharwar System have been laid down. [1] The term was first fashioned by W.F.Smeeth of the Mysore Geological Department in 1916 based on the first scientific study of this rock ...
The Lalbagh hill is composed of dark biolite gneiss of granitic to granodioritic composition containing streaks of biolite. Vestiges of older rocks are seen in the form of enclaves within the gneiss. Peninsular Gneiss of the region is dated 2500 to 3400 million years that accreted in three major episodes, i.e. 3.4 Ga, 3.3–3.2 Ga and 3.0–2.9 Ga.
Augen gneiss, from the German: Augen, meaning "eyes", is a gneiss resulting from metamorphism of granite, which contains characteristic elliptic or lenticular shear-bound grains (porphyroclasts), normally feldspar, surrounded by finer grained material. The finer grained material deforms around the more resistant feldspar grains to produce this ...
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Peaceful little Portuguese chapel of St. Thomas who was martyred on top of the mount made up of Charnockite rock formations. One of the earliest memorials in Chennai is the peaceful little Portuguese chapel on top of the hill (a flight of 132 steps leads to the summit) and built at the site where St. Thomas, the Apostle of India, was martyred in 72 A.D. and thereafter the hill has been ...
Bugle Rock (called Kahale Bande (ಕಹಳೆ ಬ೦ಡೆ)) is a massive rock situated in Basavanagudi which is an abrupt rise above the ground of peninsular gneiss as the main rock formation and with an assessed age of about 3000 million years.
The Glen Rock, which is composed of gneiss, is located in the center of a former glacial lake. The cultural history of the Glen Rock predates the settlement of New Jersey by European colonists. The Lenape , who referred to the boulder as Pamackapuka , used the rock as a trail marker, a location to build signal fires, and as a throne for chiefs ...