| 000 | 00000nam 2200000zi 4500 |
| 001 | 9.917243 |
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| 003 | CaOODSP |
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| 005 | 20251031142448 |
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| 006 | m o d f |
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| 007 | cr mn||||||||| |
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| 008 | 221114t20222022oncab ob f000 0 eng d |
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| 040 | |aCaOODSP|beng|erda|cCaOODSP |
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| 043 | |an-cn-on |
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| 086 | 1 |aM183-2/8851E-PDF |
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| 100 | 1 |aBrooks, Gregory Robert, |d1958- |eauthor. |
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| 245 | 10|aThickness record of varves from glacial Ojibway Lake recovered in sediment cores from Frederick House Lake, northeastern Ontario / |cG.R. Brooks. |
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| 264 | 1|a[Ottawa] : |bGeological Survey of Canada, |c2022. |
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| 264 | 4|c©2022 |
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| 300 | |a1 online resource (18 pages) : illustrations (some colour), maps (some colour) + |eradiograph images (1 page). |
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| 336 | |atext|btxt|2rdacontent |
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| 337 | |acomputer|bc|2rdamedia |
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| 338 | |aonline resource|bcr|2rdacarrier |
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| 490 | 1 |aOpen file, |x2816-7155 ; |v8851 |
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| 504 | |aIncludes bibliographical references (pages 16-18). |
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| 520 | 3 |a"The thicknesses of 384 rhythmic couplets were measured along a composite sequence of glacial Lake Ojibway glaciolacustrine deposits recovered in two sediment cores from Frederick House Lake, Ontario. The visual comparison of distinctive couplets in the CT-scan radiographs of the Frederick House core samples to photographs of core samples from Reid Lake show a match of ±1 varve number from v1656-v1902, and ±5 varve numbers between v1903-v2010, relative to the regional numbering of the Timiskaming varve series. There are two interpretations for the post-v2010 couplets that fall within the Connaught varve sequence of the regional series. In the first, the interpreted numbering spans from v2066-v2115, which produces a gap of 55 missing varves equivalent to v2011-v2065, and corresponds to the original interpretation of the Connaught varve numbering. The second spans v2011a-v2060a, and represents alternative (a) numbering for the same varves. Varve thickness data are listed in spreadsheet files (.xlsx and .csv formats), and CT-Scan radiograph images of core samples are laid out on a mosaic poster showing the interpreted varve numbering and between-core sample correlations of the varve couplets"--Abstract, page 1. |
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| 650 | 0|aVarves|zOntario. |
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| 650 | 0|aLake sediments|zOntario. |
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| 650 | 0|aGlacial lakes|zOntario. |
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| 650 | 6|aVarves|zOntario. |
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| 650 | 6|aSeĢdiments lacustres|zOntario. |
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| 650 | 6|aLacs glaciaires|zOntario. |
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| 710 | 2 |aGeological Survey of Canada, |eissuing body. |
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| 830 | #0|aOpen file (Geological Survey of Canada)|v8851.|w(CaOODSP)9.506878 |
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| 856 | 40|qPDF|s17.76 MB|uhttps://publications.gc.ca/collections/collection_2023/rncan-nrcan/m183-2/M183-2-8851-eng.pdf|z(report) |
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| 856 | 40|qPDF|s18.87 MB|uhttps://publications.gc.ca/collections/collection_2023/rncan-nrcan/m183-2/M183-2-8851-1-eng.pdf|z(Radiograph images of the Frederick House Lake cores) |
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| 856 | 4 |qHTML|sN/A|uhttps://doi.org/10.4095/329275|z(complete dataset) |
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