Description :
Development of a layered ironstone through stratabound magnetite alteration of an albitized metasiltstone, Peanut Lake. A shear zone oblique to layering is infilled by magnetite. Magnetite alteration haloes along the vein increase the stratabound alteration of the host. F. Amphibole-dominant HT Ca-Fe alteration is tectonically foliated and warped along the swells and neck of boudinaged, stratabound magnetite-altered layers (F: 11PUA-028). G. Tectonically foliated, amphibole-dominant HT Ca-Fe alteration with a thin magnetite-altered layer foliated and warped along the swells and neck of the adjacent boudinaged
albitite layer (G: 11PUA-028). The albitite is K-feldspar altered, brecciated and infilled by magnetite associated with a HT K-Fe facies. H. Detail of the HT K-Fe breccia within albite layer in G (H: 11PUA-028)
Photographe :
Potter, E G
Collection :
Ressources naturelles Canada
Haute-résolution :
0.14 MB
719x793 pixels
300 ppi (jpeg)
Nota :
Numéro d'affleurement 11PUA028. Autres photographes - Équipe IGC. Date de prises de données de terrain 2011 07 14
Géographie :
135; Peanut Lake; Territoires du Nord-Ouest