| 000 | 01590caa a22002654a 4500 | ||
|---|---|---|---|
| 001 | 40374 | ||
| 003 | AR-SsjUBGM | ||
| 005 | 20251220110811.0 | ||
| 008 | 251215nuuuuuuuuag 000 0 spa d | ||
| 040 |
_aAR-SsjUBGM _cAR-SsjUBGM |
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| 041 | 0 | _aspa | |
| 044 | _aag | ||
| 100 | 1 |
_aToselli, A. J. _943474 |
|
| 245 | 1 | 0 | _aDeterminación preliminar del Grado Metamórfico en base a la crisitalinidad de illita en algunas localidades del Noroeste de Argentina. |
| 500 | _aRelevamiento: 1981. | ||
| 520 | 3 | _aIllite crystallinity is the criteria used to assess the degree of metamorphism of paleozoic pelitic rocks from Negro Peinado and Volcáncito formations from the Famatina; Puncoviscana formation from Cordillera Oriental; Falda Cienega formation from Puna and Suncho formation from Sierras Pampeanas. -The metamorphism correspond to the anchizone (anchimetamorphismor very low grade metamorphism). -The cristallinity of illite has been determined in sedimentation samples of different grain size (2u; 2-6, 3u and 6,3u).-The peak with at halt heght (Hb) of the (001) reflection serves as a measure of cristallinity and the value of relative Halbwertsbreite (Hbrel) by the fraction 2u defined the level for the metamorphism. An external quartz standard has been used. | |
| 650 | 4 | _aDiagenesis | |
| 650 | 4 | _aMetamorfismo | |
| 650 | 4 | _aSedimentología | |
| 651 | 0 |
_aNOA _939835 |
|
| 655 | 4 |
_aArtículo _924605 |
|
| 773 | 0 |
_tRevista del Instituto de Ciencias Geológicas _gno.4,. p.19-26 _x0326-9817 |
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| 942 |
_cAR _2cdu |
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| 945 |
_aBIDGYM (ESC) _d1993-11-15 |
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| 999 |
_c40374 _d40374 |
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