DETERMINATION OF ZIRCONIUM AND HAFNIUM IN METEORITES, SEDIMENTS, AND TERRESTRIAL MATERIALS BY NEUTRON ACTIVATION ANALYSIS (thesis)

Technical Report · Tue Jan 01 04:00:00 EST 1963

OSTI ID:4665324

Setser, J L

ABS>Chemical and radiometric procedures for the quantitative determination of zirconium and hafnium nt the microgram and sub-microgram level by neutron activation analysis were developed. The radiochemical separations were carried out by the use of anion-exchange, solvent extraction, and gravimetric precipitations. Both zirconium and hafnium were determined by gamma counting. Experimental values for the cosmic abundances of zirconium and hafnium of 56 and 0.16 (Si = 10/sup 6/), respectively, were deduced from abundance data obtained from chondritic meteorites. Experimental determinations of the abundance of hafnium in achondrites, tektites, troilite, and deep-sea sediments are given. Data on the abundances of zirconium and hafnium in iron meteorites, troilite, and the standard rocks G-1 and W-1 are presented and compared with the previous determinations. Some geochemical properties of zirconium and hafnium were derived from the distribution of the elements in different meteoritic phases. (auth)

• Research Organization: Kentucky. Univ., Lexington
• NSA Number: NSA-17-031986
• OSTI ID: 4665324
• Report Number(s): TID-19179
• Country of Publication: United States
• Language: English

Related Subjects

ACHONDRITES
ACTIVATION ANALYSIS
CHEMISTRY
DEPOSITS
DISTRIBUTION
GAMMA DETECTION
GEOCHEMISTRY
HAFNIUM
ION EXCHANGE
IRON SULFIDES
METEORITES
NEUTRONS
PRECIPITATION
QUANTITATIVE ANALYSIS
SEA
SEPARATION PROCESSES
SOLVENT EXTRACTION
TEKTITES
TRACE AMOUNTS
TROILITE
ZIRCONIUM