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Showing posts from March, 2010

How geology affected both ancient and modern human settlements.

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Primitive tribe were attracted towards the forest and hilly terrain of Jharkhand state, India. by Dr. Nitish Priyadarshi Geology has a remarkable influence on our lives today, as it has on all life since the beginning billions of years ago. Perhaps the clearest influence we see of this is through the development of wealth from the exploitation of fossil fuels and mineral resources, including precious metals and gems. Wars have been fought over (and with) these resources, and for the potential wealth they represent. However, geology has other profound, if less glamorous, impacts on civilization, both past and present. For example, the productivity of soils critically depends on the underlying geology—both for its mineral composition and its capacity to store water. Geology also determines the shape of our landscapes—that is, before being disturbed by humans—and it is the shape of the land that has determined the distribution of human populations throughout our history. Back at the dawn...

Dasam falls a tragic picnic spot in Jharkhand State of India. Rocks structure plays major role.

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Geological factors may be responsible for such accidents. Potholes present in the rocks are dangerous. by Dr. Nitish Priyadarshi Waterfalls offer breathtaking views and are cool places to relax and feel the astounding beauty and benefits of nature. But in some cases, these wonderful gifts of nature to mankind bring tragedy to people. A fun filled day out at the famous Dasam falls, near Ranchi city, proved fatal for four youngsters. They drowned while enjoying a picnic on Saturday (20th March). This is not the new case. Every year many people die in this fall especially from November to March. Causes of deaths were due to drowning. The Dasam (meaning ten) falls also known as Dasomghagh, 40 Kms south-east of Ranchi city near Taimara valley is formed by the Kanchi river falling over a ledge of a rock in a sheer descent of 114 feet amid rocky and sylvan scenery. There are different mythological stories behind such accidental deaths. But no scientific investigations have been done to know ...

Global warming controversy.

Can we predict effects of climate change with accuracy? by Dr. Nitish Priyadarshi Recently all the newspaper of world was heated up with the discussions about the so called glaciers melting of Himalayas by 2035, from IPCC. Other prediction was about Amazon rain forests. The IPCC maintained that there would be a huge depletion in Amazon rain forests because of lack of precipitation. There are many more predictions given by IPCC which I think that they are over exaggerated and could not be believed. Regarding glaciers melting by 2035, it is now being defended as a minor error (it was originally meant to be 2350, some have clarified). The global warming controversy is a dispute regarding the nature, causes, and consequences of global warming. The disputed issues include the causes of increased global average air temperature, especially since the mid-20th century, whether this warming trend is unprecedented or within normal climatic variations, whether humankind has contributed significant...

Crows and Eagles were found dead near Ranchi city of India.

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They were found dead today in outskirts of Ranchi city. by Dr. Nitish Priyadarshi These are the pictures of the dead birds mostly crows and eagles. They were found dead today in outskirts of Ranchi city in Jharkhand State of India.Villagers saw them in the morning. Their sudden deaths are shrouded in mystery as birds seldom die suddenly. I am sure they must have eaten some poisonous foods or may have been infected by some deadly virus. Some of the dead bodies were also found hanging on the trees. Area where their bodies were found is devoid of thick vegetation and civilization. It is barren land. Now a day very less crows are seen in and around Ranchi city. Most of the birds like sparrows are now gradually vanishing from the city. According to recent report, The American crow is very susceptible to the West Nile virus , a disease just recently introduced in North America. American crows usually die within one week of acquiring the disease with only very few surviving exposure. Crows...

Increasing trend of CO2 level.

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CO2 Data Set: Original data file created by NOAA on Wednesday February 10, 2010 (10:13:56) Measuring Location: Mauna Loa Observatory , Hawaii Data Source: Earth Systems Research Laboratory (ESRL) / National Oceanic and Atmospheric Administration (NOAA) Why is CO2 significant? Carbon dioxide (CO2) is the chief greenhouse gas that results from human activities and causes global warming and climate change. To see whether enough is being done at the moment to solve these global problems, there is no single indicator as complete and current as the monthly updates for atmospheric CO2 from the Mauna Loa Observatory . What is the current trend? The concentrations of CO2 in the atmosphere are increasing at an accelerating rate from decade to decade. Accelerating from decade to decade. The latest atmospheric CO2 data is consistent with a continuation of this long-standing trend. What level is safe? The upper safety limit for atmospheric CO2 is 350 parts per million (ppm). Atmospheric CO...

Ancient climate indicator rocks are also found in Jharkhand State of India.

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The formation of some rock types and minerals are directly influenced by aspects of climate. by Dr. Nitish Priyadarshi Palaeoclimatology, the study of climates during the geological past, is one of the most topical areas of research in the geosciences at present. The threat of future climate change caused by higher levels of greenhouse gases, which would drastically alter many aspects of our environment, has prompted much research to try to understand how our complex climate system works. Only by understanding how climate has evolved over million of years can we identify important climate cycles with a frequency in excess of the short climate records we possess. These climate cycles have the potential to have a profound effect on our environment. Understanding our climate history in the geological past is also important for climatologists trying to construct accurate numerical computer models of our present climate system to use for predicting future climate change. Basic information a...

Copper deposits in India.

Hindustan copper ltd. (HCL) is presently the sole indigenous producer of primary copper in the country. The all India recoverable reserves of copper ore are placed at 431.046 million tonnes equivalent to about 4.557 million tonnes of metal content. The prospective resources are placed at 769.90 million tonnes of copper ore. Copper concentrated states are, Andhra Pradesh, Jharkhand, Gujarat, Karnataka, Madhya Pradesh, Maharashtra, Meghalaya, Orissa, Rajasthan, Uttar Pradesh and West Bengal. Recently in Jharkhand copper mining has been stopped due to involvement of more money and less profit only one mine is working. Boreholes drilled in Chitar sector in Pali and Ajmer districts in Rajasthan have intersected ore zones, varying in width from 0.55 to 9.8 m. The zones contain grade ranging between 0.5% and 1% Cu and 1% and 2%zinc. Drilling investigation in Dariba (Akola) copper prospect, Rajasthan, has indicated about 2 million tonnes of copper ore. The test drilling by GSI at Saran Bhawava...