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Murthy, S. R. N.
- Diamond Occurrences in Ancient India
Authors
1 541, 38th Cross, 5th Block, Jayanagar, Bangalore 560 041, IN
Source
Journal of Geological Society of India (Online archive from Vol 1 to Vol 78), Vol 21, No 4 (1980), Pagination: 208-210Abstract
The observations made on the occurrence of diamonds by Kautilya and Varahamihira, the celebrated authors of the well-known Sanskrit texts Arthasastra and Brhatsamhita respectively, are presented. Validity of some of the statements has been examined in the light of modern knowledge. Attention is drawn to possible areas where exploration efforts could be directed based on mention made in the two ancient texts.Full Text
- The Age of the Earth According to the Hindu Calendar
Authors
1 307-C/10, 18th Main, Vijayanagara, Bangalore 560040, IN
Source
Journal of Geological Society of India (Online archive from Vol 1 to Vol 78), Vol 23, No 9 (1982), Pagination: 441-443Abstract
We reproduce below an article by Sri S. R. N. Murthy detailing the basis of measurement of time as per the Hindu Calendar. It will be seen from this that the ancient Hindu philosophers had an expansive view of time and had recognised the cyclic nature of events. According to them each cycle or KALPA was of 4.3 billion years duration. We are, as per this calendar, about two billion years old in the present Kalpa, The basis on which such calculations were made by the Ancient Hindu Philosophers of India should prove to be of interest to our readers.
- Minerals Used in Indian Medicine
Authors
1 307-C/10, 18th Main, Vijayanagara, Bangalore-560040, IN
Source
Journal of Geological Society of India (Online archive from Vol 1 to Vol 78), Vol 24, No 12 (1983), Pagination: 664-667Abstract
The paper points out the various minerals used in Indian medicine. Difficulties in standardisation of various mineral substances used in Hindu medicine are noted. The more important therapeutic values claimed for the Ayurvedic medicine are mentioned. Attention is drawn to the need for research in the field of mineral medicine.- REE Geochemistry and Petrogenesis of Ultramafic Rocks of Chalk Hills, Salem
Authors
1 Department of Inorganic and Physical Chemistry, Indian Institute of Science, Bangalore 560 012, IN
Source
Journal of Geological Society of India (Online archive from Vol 1 to Vol 78), Vol 28, No 6 (1986), Pagination: 449-466Abstract
REE geochemistry of plagioclase-free, plagioclase-bearing and titanoclinohumite-bearing ultramafic suite of Chalk Hills is presented. The rare earth elements are determined by spark source mass-spectrography combined with a preanalytical chemical concentration reaching ± 4 accuracy and 0.01 ppm detection limit. Plagioclase-free ultramafics are 10 times LREE depleted. while HREE abundance is 1-2 times those of chondrite. Since the samples are not serpentinised, these REE patterns are considered to be primary and compare well with those of high temperature peridotites, particularly on CeN-YbN diagram. The plagioclase-bearing ultramafics and the gabbros have LREE contents 4-22 times chondritic, while the HREE varies from 2-12. The REE patterns of ultramafics from the smaller body show uniform increase in (La/Yb)N ratios from 7 to 15. Higher abundance levels of incompatible alkali elements which do not correlate with the MgO contents, may suggest metasomatic introduction of these elements into the smaller body.
Petrogenetic modeling, based on partial melting of spinel peridotites as the source rocks with 2 times chondritic abundance, points towards the residual nature of the plagioclase-free ultramafics after extracting 8-10% of the melt. On the other band, the observed REE patterns of the plagioclase-bearing ultramafics and the gabbros not only indicate the absence of rocks more siliceous than syenogabbros but also suggest that they represent compositions of a depleted parent melt from which they originated. Thus the ultramafic association of Chalk Hills is distinctly different from the igneous suites associated with ophiolites and alpine peridotites.
- Correlation of Deep Shock Earthquakes With the Dynamic Centre of the Solar System
Authors
1 307-C/10, 18th Main, Vijayanagara, Banglore 560040, IN
Source
Journal of Geological Society of India (Online archive from Vol 1 to Vol 78), Vol 35, No 5 (1990), Pagination: 535-538Abstract
Dispositional patterns of outer planets and the resultant angular momenta have been exammed for the deep shock earthquakes which occurred during the first half of this century. It is observed that there exists a correlation between the disposition of resultant angular momenta (the dynamic centre) of the outer planets and the terrestrial longitude of the place of deep earthquakes.Keywords
Earthquakes.- Tin in Ancient India
Authors
1 307-C/10, 10th Main, Vijayanagara, Bangalore 560 040, IN
2 University Visweswaraya College of Engineering, Bangalore 560 001, IN
Source
Journal of Geological Society of India (Online archive from Vol 1 to Vol 78), Vol 38, No 1 (1991), Pagination: 106-106Abstract
No Abstract.Full Text
- Serpentine and its Vegetation-A Multi-Disciplinary Approach
Authors
1 Geological Survey of India, Bangalore, IN
Source
Journal of Geological Society of India (Online archive from Vol 1 to Vol 78), Vol 38, No 3 (1991), Pagination: 334-335Abstract
No Abstract.Full Text