Rock formation at Jog Falls. Geologists call is the Dharwar system, curiously named after a place in Karnataka. These reddish to brown to black rocks are some of the oldest found in India. As you get closer , it is much larger than you’ve imagined. Some are as big as an elephant , some are even larger than a house.
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These rocks are abundant in metallic as well as non-metallic minerals such as iron, manganese, copper, bauxite, gold, lead, mica, graphite etc. Dharwar rock system. Formed between 2.5 billion to 1.8 billion years, these are the oldest metamorphic rocks of India. They are formed due to the metamorphosis of the sediments formed out of the Archean.
Other articles where Dhārwār craton is discussed: Precambrian: Occurrence and distribution of Precambrian rocks.
cratons in southern Africa; the Dharwar craton in India; the Aldan and Anabar shields in Siberia in Russia; the Baltic Shield that includes much of Sweden, Finland, and the Kola Peninsula of far northern Russia; the
02-02-2019 · Archaean Gneisses and Schists & Dharwar System # Purana Rock System – Cuddapah rock system & Vindhyan rock system # Dravidian rock system – Carboniferous rock system # Aryan rock system – Gondwana.
A very brief and important discussion about dharwar rock system of India. (Hindi) Advanced Geography of India-Geological Formation: NTA-UGC NET 14 lessons • 2 h 44 m
ECONOMIC ASPECT OF DHARWAR SUPERGROUP The Dharwar system carries the principal ore deposits of the country, e.g., those of gold, manganese, iron, chromium, copper, tungsten, lead, etc. These with their associated rocks are also rich in such industrially useful products as mica, corundum, lithium minerals, titanium and thorium minerals, etc.
The Dharwar rocks are dominated by ductile structures in the form of south or southwesterly verging inclined folds with superimposed, steep north-trending folds. In contrast, the basement rocks in the Honnali dome deformed cataclastically on myriad fractures and retrograde shear zones. The dome has a faulted southern boundary, whilst a.