<prompt> Pashure pokunge oiri yawanikwa paLeduc, Alberta, aiva mumwe wevaongorori vepasi vaviri vakatumwa muna 1950 kunocherechedza kuwanwa kwacho.  <response>: Chokwadika, shanduro yakaoma kunzwisisa zvikuru yemutsara wacho ndeiyi Pashure pokunge oiri yarohwa paLeduc, Alberta, akanga ari mumwe weva geologist vaviri vakatumwa muna 1950 kundotarisa kuwanwa, uko iye akanga ari mukadzi bedzi akabuda mumunda. 