METALLIC SPHERULES IN TEKTITES FROM ISABELA,
PHILIPPINE ISLANDS


E. C. T. CHAO, ISIDORE ADLER, EDWARD J. DWORNIK, JANET LITTLER
U.S. Geological Survey, Washington, D.C.

 

 

 

 

ABSTRACT

 
Iron-nickel spherules, as much as 0.5 mm. in diameter, have been found completely embedded in some philippinites. The spherules consist mainly of kamacite with unidentified pink inclusions. The meteoritic origin of these spherules seems reasonable, suggesting that the tektites containing them were formed by asteroidal or meteoritic impact.
 

 

 

 

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