1985 Earth and Planetary Sciences

Proceedings of the Indian Academy of Sciences
Earth and Planetary Sciences

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Vol. 94, January-December 1985
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Contents

March 1, 1985
Tracing quartz through the environment — D. Lal and J. R. Arnold	1-5
Comparison of electron density models with incoherent scatter radar observations at the equator — B. T. Vikram Kumar and P. B. Rao	7-11
Hydrography and circulation off the Antarctica in the Indian Ocean region — G. S. Sharma and Basil Mathew	13-27
Quasi-biennial oscillation in geomagnetic disturbance field — G. K. Rangarajan	29-34
Vertical component MAGSAT anomalies and Indian tectonic boundaries — J. G. Negi, P. K. Agrawal and N. K. Thakur	35-41
The Mannapra syenite, Central Kerala, India: Geochemistry, petrogenesis and bearing on anorogenic magmatism — M. Santosh and K. G. Thara	43-56
Petrology of thermally metamorphosed pelitic rocks in the Champawat Area, Kumaun Himalaya — Brijraj K. Das	57-70
Analysis of gravity gradients over a thin infinite sheet — G. D. J Sivakumar Sinha and H. V. Ram Babu	71-76
July 2, 1985
Detection of large scale electron density irregularities during IPS observations at 103 MHz — S. K. Alurkar, H. O. Vats, R. V. Bhonsle and A. K. Sharma	77-82
Basal flow rate of Changme-Khangpu glacier, Sikkim Himalaya based on 32Si and Pb chronology — V. N. Nijampurkar	83-89
An analytical technique for rapid determination of surface rock density — G. Ramadass, S. M. Varaprasada Rao and M. S. Vijaya Raghava	91-97
Preliminary studies on the geochemistry of the Cauvery river basin — V. Subramanian, L. Van t'Dack and R. Van Grieken	99-110
Anomaly map of Z component of the Indian sub-continent from magnetic satellite data — M. G. Arur, P. S. Bains and Jeevan Lal	111-115
Summer cooling of the Arabian Sea—a review — J. S. Sastry and V. Ramesh Babu	117-128
Monthly-mean wind stress along the coast of the north Indian Ocean — Satish R. Shetye, S. Satheesh Chandra Shenoi, M. K. Antony and V. Krishna Kumar	129-137
Global temperature changes: relative importance of greenhouse constituents of the atmosphere as calculated with a 1-d radiative-convective model — M. Lal and K. C. S. Rao	139-145
Interaction of monsoon with northern hemisphere mid-latitude circulation S. T. Awade, M. Y. Totagi and S. M. Bamskar	147-157
Short range prediction with a multi-level primitive equation model — S. S. Singh	159-184
Correction of the paper "A study of meteorite falls" — Frans E. Wickman and Carl D. Palmer	185-186
November 3, 1985
Interannual and long-term variability of the summer monsoon and its possible link with northern hemispheric surface air temperature — R. K. Verma, K. Subramaniam and S. S. Dugam	187-198
Relationship between all-India summer monsoon rainfall and southern oscillation eastern equatorial pacific sea surface temperature — D. A. Mooley, B. Parthasarathy and N. A. Sontakke	199-210
Global features of upper-tropospheric zonal wind and thermal fields during anomalous monsoon situations — L. S. Hingane, S. D. Patil and K. Rupa Kumar	211-217
The sensitivity of the northern hemisphere summer mean meridional circulation to changes in the large scale eddy forcing — B. N. Goswami	219-235
Remote sensing of atmospheric water vapour from Bhaskara II SAMIR data and its comparison with NOAA water vapour data — P. N. Pathak, B. S. Gohil and A. Sarkar	237-247
A study on the sensitivity of the radar scattering coefficient to oceanic winds — Abhijit Sarkar and Raj Kumar	249-259
HF doppler observations on the occurrence of equatorial spread-F — B. T. Vikram Kumar, P. Velayudhan Nair and P. B. Rao	261-267
Transient electromagnetic response due to a pair of horizontal conducting sheets in a loop field — R. Nagendra, B. Ramaprasada Rao and Satyanarayan Kabra	269-277
Emission spectrographic estimation of gold — K. C. Joseph	279-282
Oxygen and hydrogen isotopic ratios in groundwaters and river waters from India — S. K. Bhattacharya, S. K. Gupta and R. V. Krishnamurthy	283-295
Geochemistry of bauxites of Belgaum (Karnataka) and Yeracaud (Tamil Nadu) areas— J. N. Pattan and S. M. Appangoudar	297-303
The Purimetla gabbros, Prakasam District, Andhra Pradesh, India — J. Ratnakar and C. Leelanandam	305-313
Framboidal pyrite from Mussoorie phosphorite and its geological implication — S. C. Tripathi	315-321
A study of the monsoonal beach processes around Alleppey, Kerala — N. P. Kurian, T. S. Shahul Hameed and M. Baba	323-332