REPORT OF ACTIVITIES ON AYREX RESOURCES LIMITED PROPERTY IN THE TORNGAT MOUNTAINS (PEM 1463). GM 59663, 2002. 16 pages.
MAZEROLLE, G. J.



Résumé

The geology of this property is considerably more diverse than that of properties examined further west. The presence of belts of peridotite in pods and lenses as well as massive rock unit leads one to expect that there will be some eclogite indicator minerals associated with them. It is fortunate that the Quebec department or mines has published their geology map of the area this past october. The information contained on it will be valuable in interpreting the distribution of indicator minerals in the drainage systems on the property. The presence of subducted oceanic slabs (indicated by the pieces of mantle peridotite on their undersides) supplies the first part of the environment for diamond formation. The proximity of kimberlitic dykes with diamonds attests to the fact that the crust underwent tension sufficient to tap the depths required for diamond formation. This property will require a separate program of exploration to identify the presence of kimberlite dykes or pipes on it. A detailed systematic sampling of till is probably the best way in finding the source of concentrations of kimberlite indicator minerals and the probable location of buried pipes or dykes. Since one of the key signs of the presence of the kimberlite dykes is the grassy cleft in the rocks, prospecting on this property needs to be done on the ground, by till sampling or using a ground magnetometer. The magnetometer used in walking mode is a very good tool in following invisible kimberlitic dykes once they disappear under the extensive boulder fields at these higher elevations. It should be used to follow extensions of known or suspected kimberlite dykes. It can also be used to locate narrow steep gradient magnetic features that are magnetic dykes but may be diabase dykes. An experienced operator should be able to find the more resistant diabase as float on the surface. A computer with appropriate software and an operator familiar with the system will be needed to give daily feedback on likely targets for the crew to focus on the next day.

Détails

Type de document

Document des compagnies d'exploration minière
Travaux statutaires

Domaine d'activité

Géologie générale
Géochimie
Divers

Type de levé

Évaluation technique
Levé géologique
Analyse de sédiments de ruisseaux
Minéraux industriels

Renvoi

Voir aussi GM 59661
Voir aussi GM 59662
Voir aussi GM 59664
Voir aussi GM 59665
Voir aussi GM 59666

Type de document

Document des compagnies d'exploration minière
Travaux statutaires

Domaine d'activité

Géologie générale
Géochimie
Divers

Type de levé

Évaluation technique
Levé géologique
Analyse de sédiments de ruisseaux
Minéraux industriels

Renvoi

Voir aussi GM 59661
Voir aussi GM 59662
Voir aussi GM 59664
Voir aussi GM 59665
Voir aussi GM 59666