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Guillermo Chong
Pág. 147 - 148
Only in Spanish
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Zulma Gasparini,Ariana Paulina-Carabajal,Guillermo Chong
Pág. 335 - 346
A new specimen of a Callovian marine crocodile (Metriorhynchidae), found in the middle course of quebrada Cherejara, Sierra del Medio, Región de Antofagasta, Chile, allows the revalidation of the species Metriorhynchus westermanni Gasparini. The analysis...
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Geoffrey May,Adrian J. Hartley,Guillermo Chong,Fin Stuart,Peter Turner,Stephanie J. Kape
Pág. 33 - 58
New 40Ar/39Ar radiometric, sedimentological and structural data from post-Paleocene sedimentary strata in the Calama Basin, northern Chile suggest that the established lithostratigraphy of the basin-fill requires revision. A new lithostratigraphic scheme...
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Estanislao Godoy
Pág. 139 - 140
Enseñando Geología a los niños - Guillermo Chong D.
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Adrian Hartley,John Howell,Anne E. Mather,Guillermo Chong
Pág. 117 - 125
A section equivalent to the Pliocene La Portada Formation exposed in the coastal cliff at Hornitos, northern Chile, contains a ca. 7-10 m thick conglomerate bed. The bed occurs within a succession of shallow marine sandstones and has an erosional contact...
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Guillermo Chong,Juan J. Pueyo,Cecilia Demergasso
Pág. 99 - 119
The boron resources of Chile are all located in the northern part of the country mainly in the evaporitic basins known as 'salares' (salt flats) and are genetically related to Upper Tertiary - Quaternary volcanic activity. The most important deposits are...
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Pedro L. Lopez,Luis F. Auque,Ingrid Garces,Guillermo Chong
Pág. 89 - 108
The geochemical evolution of the superficial brines in the 'Salar de Llamara' saline system is studied in this paper. Systematic sampling of saline solutions and sediments has pointed out the continuous equilibrium state of brines with respect to calcite...
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Juan J. Pueyo,Guillermo Chong,Marta Vega
Pág. 3 - 15
The Chilean nitrate deposits have been formed by a complex paragenesis of saline minerals that infill the porosity and open spaces of different country rocks. The study of the mineral infilling sequences in the rock porosities at the Pedro de Valdivia de...
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Hans-J. Gotze,Michael Schmitz,Peter Giese,Sabine Schmidt,Peter Wigger,Gerhard Schwarz,Manuel Araneda,Guillermo Chong,Jose Viramonte
Pág. 179 - 192
RESUMEN. Se presentan los resultados de investigaciones sismicas, magnetoteluricas y gravimetricas en bs Andes centrales australes (20-26°S) durante la decada de los 80. Los datos estructurales permiten deducir una fuerte asimetria en la litosfera del or...
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Gloria Arratia Fuentes,Augusto Chang Garrido,Guillermo Chong Diaz
RESUMEN:Se presentan los resultados parciales del estudio de peces fósiles que se está realizando en Chile. Se ha determinado la presencia de una nueva especie de la familia Pholidophoridae la que se describe bajo la denominación de Pholidophorus domeyka...
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