PLIENSBACHIAN (LOWER JURASSIC) BIOSTRATIGRAPHY AND ...
PLIENSBACHIAN (LOWER JURASSIC) BIOSTRATIGRAPHY AND ...
PLIENSBACHIAN (LOWER JURASSIC) BIOSTRATIGRAPHY AND ...
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PREFACE<br />
Study of the copious ammonite fauna described in this report has enabled accurate age<br />
relationships to be established between rock units in the Spatsizi area of the Western Cordillera.<br />
Ongoing mapping and mineral exploration in the Western Cordillera continue to uncover geological<br />
problems that can be resolved by paleontological research. The complex geology of this area is now<br />
better understood because of the biostratigraphic, biogeographic, and taxonomic information<br />
derived from the ammonite studies. The study has allowed the accurate dating of lithological units<br />
using a zonal scheme that permits regional and global correlation.<br />
Elkanah A. Babcock<br />
Assistant Deputy Minister<br />
Geological Survey of Canada<br />
PREFACE<br />
L’etude de l’abondante faune d ’ammonites decrite dans le present rapport a permis d ’etablir des<br />
relations d’age precises entre des unites lithologiques de la region de Spatsizi dans la Cordillere<br />
occidentale. Les travaux de cartographie et d’exploration minerale en cours dans la Cordillere<br />
occidentale soulevent continuellement des problemes geologiques qui peuvent etre resolus par la<br />
recherche paleontologique. La geologie complexe de cette region est maintenant mieux connue<br />
grace a l’information biostratigraphique, biogeographique et taxonomique issue des etudes sur les<br />
ammonites. L’etude a permis de dater avec precision des unites lithologiques au moyen d’une<br />
zonation qui permet d’etablir des correlations a l’echelle regionale et planetaire.<br />
Elkanah A. Babcock<br />
Sous-ministre adjoint<br />
Commission geologique du Canada