| | Journal (article/letter/editorial) | HYDROTHERMAL MINERALIZATIONS IN THE EAST ARM OF GREAT SLA I/E LAKE J.P. N. B^Dn^w ^ND M. M. Z. Mvv^ * Departmentof...in the East Arm of Great growth of sodicpyroxene,amphibole, and feldspars. Slave Lake were reportedrecentlyin...youngercalc-alkaline (Badham, Middle Aphebian: the Aristifats Lake vent 1978andin prep.). Fielddatasuggest thathigh-temThe...canbe documented nally containedphenocrysts of augite,hornblende, in detail. and andesinein a matrix...amphibolite facies) hy- Lower Aphebian: the Easter Island dike The dike is extremely variable in composition | | | Book | Australia 25 1.10 Important diamond localities in Canada 28 2.1 Structure of diamond 34 2.2 Theoretically...kimberlite, Colorado 97 6.7 High wall at Kelsey Lake mine in Colorado with kimberlite breccia lying under...in central and southern Africa 104 6.11 Lesotho dike swarm 107 6.12 Vertical and horizontal cross section...of finding a commercial diamond deposit are not great. But through diligent exploration, one can increase...during their rise to the surface from depths as great as 200 km. Thus one might visualize diamondiferous |
|