| Title | A Neoproterozoic age for granodiorite underlying Rogerson Lake Conglomerate: confirmed Ganderian basement in the Wilding Lake area, central Newfoundland gold district |
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| Author | Honsberger, I W ;
Bleeker, W; Kamo, S L; Evans, D T W; Sandeman, H A I |
| Source | Newfoundland and Labrador, Department of Natural Resources, Geological Survey, Open File 12A/07/1774, 2019, 7 pages  Open Access |
| Links | Online - En ligne
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| Image |  |
| Year | 2019 |
| Alt Series | Natural Resources Canada, Contribution Series 20190054 |
| Publisher | Government of Newfoundland and Labrador |
| Document | open file |
| Lang. | English |
| Media | on-line; digital |
| File format | pdf (Adobe® Reader®) |
| Province | Newfoundland and Labrador |
| NTS | 12A/07 |
| Area | Wilding Lake |
| Lat/Long WENS | -57.0000 -56.5000 48.5000 48.2500 |
| Subjects | economic geology; geochronology; mineral exploration; mineral potential; gold; ore controls; structural controls; bedrock geology; basement geology; lithology; igneous rocks; intrusive rocks;
granodiorites; sedimentary rocks; clastics; conglomerates; radiometric dating; uranium lead dating; zircon dates; mass spectrometer analysis; crystallization; intrusions; emplacement; core samples; Neoproterozoic; Gander Terrane; Rogerson Lake
Conglomerate; Antler Gold Wilding Lake Property; Crippleback Intrusive Suite; Valentine Lake Pluton; Valentine Lake Fault Zone; Marathon Gold Corp.Valentine Lake project; Phanerozoic; Paleozoic; Silurian; Precambrian; Proterozoic |
| Illustrations | location maps; geoscientific sketch maps; cross-sections; tables; photographs; Concordia diagrams |
| Program | Targeted Geoscience Initiative (TGI-5) Gold ore systems |
| Released | 2019 05 01 |
| Abstract | We report a high-precision CA-ID-TIMS U-Pb zircon crystallization age of 565.0 ± 2.3 Ma for a previously undated granodiorite sample from drillcore on Antler Gold's Wilding Lake property in central
Newfoundland. The timing of the granodiorite intrusion overlaps, within error, the emplacement of magmatic rocks of the Neoproterozoic Crippleback Intrusive Suite, including the gold-mineralized Valentine Lake pluton. Such a correlation confirms that
the highly prospective crustal-scale Valentine Lake fault zone, and its northeastern extension, cuts Ganderian basement, and further highlights similarities along strike between the Valentine Lake and Wilding Lake areas. |
| Summary | (Plain Language Summary, not published)
We report a new U-Pb zircon age of 565 +/- 2 Ma for an igneous rock underlying conglomerate on a gold property in central Newfoundland. This igneous rock
is the same age as the gold-bearing Valentine Lake pluton, which occurs along strike to the southwest. |
| GEOSCAN ID | 314671 |
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