Love your environment and nature.

These are some of the beautiful places in North East India.
by
Dr. Nitish Priyadarshi





















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Assessment of the health of Jharkhand Rivers.

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Pollution is the the big threat. by Dr. Nitish Priyadarshi nitish.priyadarshi@gmail.com Physiography : The spatial extent of Jharkhand State is approximately 21° 55’ to 25° 35’ North Latitude and 83° 20’ to 88° 02’ East Longitude. The state is land locked and it shares its boundary with Orissa on the southeast, Chattisgarh on the southwest, Bihar on the north, West Bengal on the east and Uttar Pradesh on the northwest. It comprises of the Chotanagpur Plateau, which forms a part of Deccan bio-geographic province. It is a hilly undulating plateau characterized by predominantly tropical forests and tribal settlements. The State is endowed with natural resources that need to be conserved and utilized in a sustainable manner for all-round development of the state in general and the marginalized tribal population in particular. The total geographical area of the State is 79.70 lakh hectares, out of which 23.22 lakh hectares (29.33%) are under forests; 5.66 lakh hectares (7.12%) are barren ...
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Geology of Dasam Falls in Ranchi district of Jharkhand State, India.

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 The Dassam Fall is a natural cascade across the Kanchi River. by Dr. Nitish Priyadarshi Geologist A waterfall is a place where water flows over a vertical drop in the course of a stream or river. Waterfalls are also called cascades. Waterfalls are commonly formed when a river is young. At these times the channel is often narrow and deep. When the river courses over resistant bedrock, erosion happens slowly, while downstream the erosion occurs more rapidly. As the watercourse increases its velocity at the edge of the waterfall, it plucks material from the riverbed. Whirlpools created in the turbulence as well as sand and stones carried by the watercourse increase the erosion capacity. This causes the waterfall to carve deeper into the bed and to recede upstream. Often over time, the waterfall will recede back to form a canyon or gorge downstream as it recedes upstream, and it will carve deeper into the ridge above it. The process of erosion, the wearing away of earth, plays an im...
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Significance of rock fragments and mineral grains in river sands.

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River sands of Ranchi plateau consists quartz, quartzite, feldspar, mica, coals, etc. by Dr. Nitish Priyadarshi Sand grains of Ranchi river showing rock particles and other minerals. Sand has become a very important mineral for the expansion of society. Sand is a naturally occurring granular material composed of finely divided rock and mineral particles. River sand is one of the world’s most plentiful resources (perhaps as much as 20% of the Earth’s crust is sand) and has the ability to replenish itself. River sand is vital for human well being & for sustenance of rivers. Rivers are hydraulically complicated and can vary greatly in source materials. Therefore, nearly all river sands show a broad spectrum of textures within the same deposit. Sand deposits of the rivers are accumulations of rock fragments and mineral grains, which have been derived from the weathering and erosion of hard rocks by glacial and river action. Water action is an effective mechanism for wearing away weak...
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