| Title | A potassic phreatomagmatic volcanic centre in the Thelon Basin (Northwest Territories): implications for diamond exploration |
| Download | Download (whole publication) |
| |
| Licence | Please note the adoption of the Open Government Licence - Canada
supersedes any previous licences. |
| Author | Peterson, T D |
| Source | Canadian Shield/Bouclier canadien; by Geological Survey of Canada; Geological Survey of Canada, Current Research no. 1995-C, 1995 p. 19-26, https://doi.org/10.4095/202901  Open Access |
| Year | 1995 |
| Publisher | Natural Resources Canada |
| Document | serial |
| Lang. | English; French |
| Media | paper; on-line; digital |
| Related | This publication is contained in Canadian Shield
|
| File format | pdf |
| Province | Northwest Territories |
| NTS | 66D/02 |
| Lat/Long WENS | -103.0000 -92.3500 64.0000 63.5500 |
| Subjects | igneous and metamorphic petrology; diamond; volcanic rocks; lamproites; volcanic vents; igneous rocks; analyses; whole rock analyses; geochemical analyses; Kuungmi Formation; Thelon Basin;
Proterozoic |
| Illustrations | photographs; photomicrographs; analyses |
| Released | 1995 01 01 |
| Abstract | An exposure of the strongly potassic and magnesian Kuungmi Formation (less than 1.72 Ga) within the Thelon Basin has the characteristics of a phreatomagmatic volcanic centre, including vesicular sandy
tuffs and phlogopite-rich accretionary lapilli. This centre demonstrates that the geological conditions which permit development of diamondiferous lamproite vents were present in the early to mid-Proterozoic, when the Thelon Formation was much more
extensive. |
| GEOSCAN ID | 202901 |
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