PART II— DYNAMICS OF THE SOLID EARTH 



quired to monitor the world's inter- 

 esting volcanic events, however, and 

 the results fall far short of what is 

 possible within the capabilities of 

 modern transportation and modern 

 data-gathering methods. 



Requirements of Science 



We expect advances in our under- 

 standing of fundamental volcanic 



mechanisms to evolve from two broad 

 types of investigations: 



Long-term investigations of in- 

 dividual volcanoes, volcanic 

 features, and volcanic fields. 

 These studies will focus on 

 the origin of the magmas and 

 land forms and their evolution 

 through time. The goal of the 

 research is to develop the de- 

 tails of the physical processes 



producing these features and 

 the reasons for their evolution. 

 Some of this kind of work is in 

 progress in the United States. 



Well-coordinated and short- 

 term field investigations of vol- 

 canoes in eruption by teams of 

 prepared and qualified scien- 

 tists capable of responding on 

 very short notice. This is a new 

 kind of activity, not currently 

 well organized. 



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