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The scientists analyzed sedimentary rocks deposited in "Chaibasa Formation" in eastern India. by Dr. Nitish Priyadarshi Scientists have found evidence that the oldest earthquake followed by tsunami traceable in the earth's history took place more than 1,600 million years ago in what is now Jharkhand. An international team of scientists from India, Japan and Poland has reported the discovery in a paper of the journal 'Sedimentary Geology’ in year 2006. This occurred long before the massive southern land mass called Gondwana land split up and the piece that now forms peninsular India floated north and crashed in the Asian land mass. The scientists analyzed sedimentary rocks deposited in "Chaibasa Formation" in eastern India. "The layers show deformations that have never been described before," Rajat Mazumder, lead author and a Humboldt Fellow in the university of Munich told. Mazumder and co-workers show that earthquakes caused the deformations ...

Plants can also help us in finding uranium. by Dr. Nitish Priyadarshi Fig. Aster Venusta Name of the plant in the figure below is Astraqualus sp. Geobotanical methods of prospecting involve the use of vegetation for identification of the nature and properties of the substrate. Paradoxically, these methods are among the easiest to execute and yet the most difficult to interpret of all the methods of exploration available at the present time. In terms of execution, the basic requirement is merely a pair of human eyes; but in the interpretation of the visual (or photographic) image, some knowledge is required of a number of different disciplines such as biochemistry, botany, chemistry, ecology, geology, and plant physiology. Geobotanical methods of prospecting are based on the visual observation and identification of vegetation or plant cover that may reveal the presence of a specific type of sub-surface mineralization. In this method, it is presumed that a particular variety of plant s...

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...