Proceedings of the Indian Academy of Sciences
Earth and Planetary Sciences

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Vol. 90, January-December 1981
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Contents

 March 1, 1981  
Windows to early solar system processes,Refractory inclusions in the CV and CM chondrites —  J. D. Macdougall and J. N. Goswami           
 1-26

Excitation of electromagnetic lower hybrid instability in the region of bouncing electron beams — B. A. Rao and G. S. Lakhina             
 27-38
Probable maximum point rainfall estimation for the southern half of theIndian peninsula —
Om Dhar, A. K. Kulkarni and R. Rakhcha            
  39-46
Induced magnetic variations at Shillong in relation to regional geology — Nandini Nityananda and D. Jayakumar            
  55-62
Seismic ray direction anomalies and relative residuals of earthquakes recorded at Gauribidanur array — Avadh Ram, Lalji Yadav and O. P. Singh             
 63-74
A T-shaped four-electrode configuration for resistivity profiling over thin vertical conducting veins — S. V. Suryanarayana Rao, S. Muruli and
V. L. S. Bhimasankaram             
 75-83
A simple dynamic method for the evaluation of the piezoelectric activity of rock samples — Y. Sreedhar Murthy, S. Mitra and V. L. S. Bhimasankaram             
 85-89
Magnetic, chemical and x-ray studies of magnetites from Tamil Nadu,India — N. Subba Reddy and  R. K. Prasad            
 91-103
A simulation technique for the determination of atmospheric water content with Bhaskara satellite microwave radiometer (SAMIR) —  P.C. Pandey, A. K. Sharma and B. S. Goel        
  105-110
July 2, 1981

The Neogene Quaternary boundary in India: A review — D. P. Agrawal, D K Bhatt, Sheela Kusumzar and R. K. Pant              111-123
Short-period oscillations in outgoing longwave radiation over the summer monsoon region — C. Muthuvel
 125-140
On the formation of a sharp layer of metallic constituents at sunrise in the lower thermosphere — J. S. Shirke, R. Sridharan, S. P. Gupta, A. D. Danilov, A. A. Pokhunkov, V. K. Semenov and V. A. Verfolomeev
 141-146
Determination of partial geoidal parameters over the Indian sub-continent — V. K. Gaur
 147-153
Palaeoclimatic inferences from the behaviour of radiocarbonates from sand dunes of Rajasthan — R.V. Krishnamurthy, D. P. Agrawal, V. N. Misra and S. N. Rajaguru
 155-160
Thermoluminescence dating of pottery from Sringaverapura—A Ramayana site — D. P. Agrawal, N. Bandari, B. B. Lal and A. K. Singhvi
 161-172
Rocket measurements of ozone concentrations in the stratosphere and mesosphere over Thumba — B. H. Subbaraya and Shyam Lal
 173-187.
Complex seismic signatures and narrow azininth  study of Hindukush earthquakes — Avadh Ram
 189-195
November 3, 1981

Characteristic curves  for  interpreting gravity  anomalies  of vertical cylinders and horizontal circular discs —  C.  Visweswara Rao and I. V. Radhakrishna Murthy
 197-209
Seepage loss from a canal in Sri Lanka measured using tritium tracer — J. K. Dharmasiri,
K. G. Dharmawardena, W. Manchanayake,N. M. G. Navaratna, D. A. Wickremarachchi and P. S. Goel
 211-215
Archaean crustal thickness of greenstone granite belts of South India —
C. S. Pichamuthu, R. Srinivasan, Fareeduddin and Appaji Amrit Bhasker
 217-226
Radiometric age of the snout ice of Nehnar glacier — N. Bhandafi, D. I. Bhatt,
V. N. Nijampurkar, R. K. Singh, D. Srivatsava and C. P. Vohra
 227-235 
A possible explanation of conductivity anomalies near Ujjain and Jaipur — A.  K. Agarwal
 237-244
Solar activity and Indian weather climate — H. N. Bhalme, R. S. Reddy, D. A. Mooley and
B. V. Ramana Murthy
 245-262
Atmospheric temperature profile for a tropical region from TIROS-N microwave sounding unit — B. S. Gohil, A. K. Sharma and P. C. Pandey
 263-271
Magnetic properties of mafics and ultramafics from Eastern Ghats — V.  Bhaskara Rao and A.  Lakshmipati   273-280
Water vapour content over two Indian sites tested for a millimeter-wave radio observatory — U. N. Maiya and Patrick Dierich           
 281-290
Horizontal moisture distribution from TIROS-N high resolution infrared sounder (HIRS) — Vijay K. Agarwal and Ashajayanti Loganathan           
 291-304
Envelope soliton solution for finite amplitude equatorial waves — R. K. Jain, B.  N.  Goswami, V. Satyan and R. N. Keshavamurty         
   305-326
Simulation studies of satellite spectral radiances for 11-1, 8-3, 7-3, 6-7 ftm IR bands — Vijay K. Agarwal and A. V. Ashajayanthi          
  327-336
On the origin of the low energy cosmic rays from stellar sources — S. Biswas, N. Durgaprasad and Sushma S. Trivedi           
 337-344
Irradiation history and atmospheric ablation of meteorites: Results from cosmic ray track studies — J. N. Goswami         
   345-358
Records of ancient cosmic radiation in extraterrestrial rocks — Narendra Bhandari           
 359-382
Fission tracks and cooling rates of meteorites — Ghislaine Crozaz              383-388
Fission track geochronology of India — K. K. Nagpaul          
  389-401
Precision, accuracy and meaning of fission track ages — G.  Poupeau              403-436
Application of solid state nuclear track detectors in fission studies — R. H.  Iyer              437-460



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