[11] In ancient times, Aravalli were extremely high but since have worn down almost completely from millions of years of weathering, whereas the Himalayas, young fold mountains, are still continuously rising.
Cratons, generally found in the interiors of tectonic plates, are old and stable parts of the continental lithosphere that have remained relatively undeformed during the cycles of merging and rifting of continents.
It started with rifting of a rigid Archaean continent banded gneissic complex around 2.2 Ga with the coexisting formation of the Bhilwara aulacogen in its eastern part and eventual rupturing and separation of the continent along a line parallel to the Rakhabdev (Rishabhdev) lineament to the west, simultaneous development of a passive continental margin with the undersea shelf rise sediments of the Aravalli-Jharol belts depositing on the attenuated crust on the eastern flank of the separated continent, subsequent destruction of the continental margin by accretion of the Delhi island arc (a type of archipelago composed of an arc-shaped chain of volcanoes closely situated parallel to a convergent boundary between two converging tectonic plates) from the west around 1.5 Ga.
[12] The Aravalli-Delhi Orogen is an orogen event that led to a large structural deformation of the Earth's lithosphere (crust and uppermost mantle, such as Aravalli and Himalayas fold mountains) due to the interaction between tectonic plates when a continental plate is crumpled and is pushed upwards to form mountain ranges, and involve a great range of geological processes collectively called orogenesis.
The tectonic setting of zinc-lead-copper sulfides mineralisation in the Delhi supergroup rocks in Haryana-Delhi were formed by mantle plume volcanic action around one billion years ago covering Haryana and Rajasthan during the mesoproterozoic.
It is limited by the Great Boundary Fault in the east, the Thar Desert in the west, Indo-gangetic alluvium in the north, and the Son River-Narmada River-Tapti River basins in the south.
The quartzite is red-pink to pinkish grey in colour and is crisscrossed with thin haematite and quartz filled fractures with sugary size grain texture.
[26][27] Ravindra Nath Singh and his team of Banaras Hindu University carried out ASI-financed excavations of Indus Valley Civilisation site on the grounds of the Government School in Khanak, during 2014 and 2016.
They also found evidence of metallurgical activities, such as crucibles (used for pouring molten metal), furnace lining, burnt floor, ash and ore slugs.
Ceramic petrography, metallography, scanning electron microscope (SEM, non-destructive, surface images of nanoscale resolution), energy-dispersive X-ray spectroscopy (EDXA and EDXMA non-destructive, qualitative and quantitative elemental composition) and transmission electron microscopy (TEM, destructive method) scientific studies of the material found prove that the Khanak site was inhabited by the IVC metal-workers who used the locally mined polymetallic tin, and they were also familiar with metallurgical work with copper and bronze.
[28] The Ganeshwar Sunari Cultural Complex (GSCC) is a collection of third millennium BCE settlements in the area of the Aravalli Hill Range.
Located within the regions of the Aravalli Hill Range, primarily along the Kantli, Sabi, Sota, Dohan and Bondi rivers, the GJCC is the largest copper producing community in third millennium BCE South Asia, with 385 sites documented.
Archaeological indicators of the GSCC were documented primarily in Jaipur, Jhunjhunu, and Sikar districts of Rajasthan, India ..."[29] Pottery found in the area include incised ware, and reserved slipware.
Urban development, especially the highways and railways bisecting the Aravalli range and wildlife corridor in several places pose a great risk.
There is often reluctance and denial on part of the government officials of the presence of wildlife such as leopard so that the forest land can be exploited and opened up for the intrusive human development.
[48] Well known leopard and hyena habitat is along the Ferozpure Jhirka-Nuh Aravali range as well as Delhi South Ridge (Faridabad-Gurugram) to Farrukhnagar area on the Delhi–Haryana border, with reports of sightings in Saidpur, Lokri and Jhund Sarai Viran villages near the KMP expressway; Bhukarka 7 km from Pataudi; Pathkori, Bhond, Mandawar in Ferozepur Jirka region.
[49] In May 1992, some parts of the Aravalli hills in Rajasthan and Haryana were protected from mining through the Ecologically Sensitive Areas clauses of Indian laws.
In May 2009, the Supreme Court extended the ban on mining in an area of 448 km2 across the Faridabad, Gurgaon and Mewat districts in Haryana, covering the Aravalli Range.
[53] The Aravali Range is the source area of many rivers, resulting in development of human settlements with sustainable economy since pre-historic times.
[54] The Aravalli Range is the home of forests, wildlife, protected areas, UNESCO heritage listed forts, rivers, and historical monuments which sustain a large tourism industry.
Damage to the environment and ecology from the unorganized urbanization, overexploitation of the natural resources including water and minerals, mining, untreated human waste and disposal, pollution, loss of forest cover and wildlife habitat, unprotected status of most of the Aravalli and the lack of an integrated Aravalli management agency are the major causes of concern.