| Title | Resource assessment, Eastern Shore Islands Area of Interest (AOI), offshore Nova Scotia |
| Download | Downloads |
| |
| Licence | Please note the adoption of the Open Government Licence - Canada
supersedes any previous licences. |
| Author | King, E L |
| Source | Geological Survey of Canada, Open File 8455, 2019, 16 pages, https://doi.org/10.4095/313293  Open Access |
| Year | 2019 |
| Publisher | Natural Resources Canada |
| Document | open file |
| Lang. | English |
| Media | on-line; digital |
| File format | readme
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| File format | pdf (Adobe® Reader®); rtf; xls (Microsoft® Excel®); xlsx (Microsoft® Excel®); dbf; shp |
| Province | Nova Scotia; Eastern offshore region |
| NTS | 11D/06; 11D/07; 11D/08; 11D/09; 11D/10; 11D/11; 11D/14; 11D/15; 11D/16 |
| Area | Eastern Shore Islands; Clam Bay; Moosehead |
| Lat/Long WENS | -65.2500 -62.1667 45.0000 44.3333 |
| Subjects | economic geology; surficial geology/geomorphology; marine geology; fossil fuels; regional geology; structural geology; geochemistry; mineral deposits; sand, commodity; gravel, commodity; aggregates;
gold; placer deposits; strata-bound deposits; vein deposits; resource estimation; drift prospecting; marine sediments; lag deposits; bedrock geology; lithology; metasedimentary rocks; slates; igneous rocks; intrusive rocks; granitic rocks; structural
features; folds; anticlines; synclines; faults; joints; marine environments; littoral environment; glacial deposits; tills; moraines; moraine, ribbed; drumlins; sands; gravels; muds; sediment dispersal; structural trends; mining activities;
hydrocarbon potential; energy resources; assays; Meguma Supergroup; Goldenville Group; Halifax Group; South Mountain Batholith; Tangier-Harrigan Cove Anticline; Tangier Gold District; Musquodoboit Batholith; Moose River Gold District; Killag Gold
District; Gold Lake Gold District; Scotian Shelf; Channel Sand; Eastern Shore Moraine; glaciomarine sediments; dispersal trains; Wind energy; Phanerozoic; Cenozoic; Quaternary; Paleozoic |
| Illustrations | location maps; geoscientific sketch maps; tables; bar graphs; cross-sections |
| Program | Geoscience for New Energy Supply (GNES) Program Coordination |
| Released | 2019 01 09 |
| Abstract | (Summary)
An assessment of the minerals potential within the Eastern Shore Islands Area of Interest is presented. There is no hydrocarbon potential. Sand and gravel aggregate occurs with some
thickness and continuity locally at the seabed and may include 40 million cubic metres (64 million tonnes). Gold has been, and continues to be mined on land, adjacent the AOI, but only directly from bedrock and not from overburden. It occurs on land
in quartz on anticlines in Lower Paleozoic metasediments; these same rocks also underlie the entire AOI. Past mining on adjacent land has been from fluvial placer deposits andapart from past littoral mining at one site on Nova Scotia's South Shore,
there has been no commercial extraction from glacial overburden or placer gold at the coast. Gold is present in loose overburden offshore, generally as low value assays (13 ppb average). Overburden assays are largely restricted to the surficial lag.
A rough estimate suggests ~830 X103 grams (29 000 oz.) may be present in a littoral placer-like setting, but spread over large areas, generally in thin but contiguous sand and gravel deposits related to marine transgression. Till and voluminous
glacimarine mud derived from the latest glacial retreat may also have disseminated gold as does the latest till on land. Gold is reasoned, but not demonstrated, to be richer near the offshore anticlines in relatively short dispersal trains (kms) in
till. Whether or not the relatively voluminous but mainly buried proglacial muds are gold-bearing is not known; no further inferences are made. Though the AOI spans a few offshore anticlines, most are not readily differentiated from synclines with
existing data coverage. |
| Summary | (Plain Language Summary, not published)
An assessment of the minerals potential within the proposed Eastern Shore Islands AOI is presented. There is no hydrocarbon potential. Aggregate, as sand
and gravel occurs with some thickness and continuity locally at the seabed and probably exceeds 60 million tonnes. Gold has been, and continues to be mined on land, adjacent the AOI.A guesstimate suggests ~830 X103 grams (29 000 oz.) in a littoral
placer-like setting, but spread over large areas, generally in thin but contiguous sand and gravel deposits related to marine transgression. |
| GEOSCAN ID | 313293 |
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