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|a The K-BENTONITE bed succession at Río Gualcamayo, Northern Argentine Precordillera :
|b the most extensive ordovician volcanic ash bed complex exposed anywhere in the world? /
|c Stig. M. Bergström ... [et al.].
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|a ,
|c 1998
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|b ca. 30 refs.
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|b ca. 30 refs.
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| 043 |
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|a s-ag
|2 82
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|a BergstrÖm, Stig M..
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|a Astini, Ricardo Alfredo.
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|a Huff, Warren D..
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|a Cingolani, Carlos A..
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|a Brussa, Edsel Daniel,
|d 1961-2008.
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|a Kolata, Dennis R..
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|a p. 439-444
|b il.
|c 28 cm.
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|c AR-RiUNS
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| 866 |
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| 773 |
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|t 10º Congreso Latinoamericano de Geología, 1998
|w CE6
|g Vol. 2 (1998)
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| 942 |
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|c PP
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| 999 |
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|c 26476
|d 26476
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