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By B.F. Windley and S.M. Naqvi (Eds.)

ISBN-10: 0080869009

ISBN-13: 9780080869001

ISBN-10: 0444417184

ISBN-13: 9780444417183

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9: 397-455. M. , 1972. The Superior Province. A. Price and R. W. Douglas (Editors), Variations in Tectonic Styles in Canada. Geol. Assoc. Canada Sp. , 11: 527-623. , 1976. Precambrian geologic history. Science, 195: 765-371. B. , 1972. Rb/Sr isotopic age determination of some basement Egyptian granites. Egygt. J. , 16: 269-281. , 1972. Sedimenhology of Archean turbidites at Yellowknife, Northwest Territories. Canad. J. , 9: 882-902. , 1970. The Ancient Gneiss complex in Swaziland. Trans. geol.

11: 265-554. , 1972. , 1964. e L l a n o -2Fli3, Texas. J. P e t r o l . , 5: 353-408. , 1957. F ; u b i d i m - s t r c the LZenc u . p l i 3 , Texas. J. I age of sene m e t a n c r 6: 29-56. This Page Intentionally Left Blank GEOCHRONOLOGY This Page Intentionally Left Blank 43 APPLICATION OF U-PB Z I R C O N AND OTHER ISOTOPZC STUDIES TO THE IDENTIFICATION OF ARCHAEAN ROCKS I N THERMALLY AND TECTONICALLY OVERPRINTED TERRANES: L E W I S I A N COMPLEX OF SCOTLAND D . R . Bowes Depariment o f G e o l o g y , U n i v e r s i t y o f Glasgow, Glasgow G 1 2 899, S c o t l a n d Abstract I s o t o p i c d a t a are u s e d t o i e s t i h e i n t e r p r e t a t i o n t h a t t h e g n e i s s e s and a s s o c i a i e d a m p h i b o l i t e f a c i e s r o c k s , which make up a l a r g e or p r o p o r t i o n of t h e L e w i s i a n complex, a r e I-he r e s u l t of ' r e w o r k i n g ' 'reaciivaiion' on a c r u s t a l s c a l e .

1974. The formation of the Earth. Nature, 250: 556-558. , 1976. Strontium and lead isotopic ratios, heterogeneous accretion of the earth, and mantle plumes. Geochim. Cosmochim. , 40: 482-485. Jahn, B. , 1974. On the age of the Onverwacht Group, Swaziland sequence, South Africa. Geochim. Cosmochim. , 38: 873-885. , and Murthy, V. Rama, 1974. Trace element geochemistry of Archaean volcanic rocks. Geochim. Cosmochim. Acta, 38: 611-627. Jakes, P. , 1972. Major and trace element abundances in volcanic rocks of orogenic areas, Bull.

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Archaean Geochemistry by B.F. Windley and S.M. Naqvi (Eds.)

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