| Reference Type | Journal (article/letter/editorial) |
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| Title | Crustal structure beneath the southern Grand Banks: seismic-refraction results and their implications |
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| Journal | Canadian Journal of Earth Sciences |
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| Authors | Reid, I. | Author |
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| Year | 1988 (May 1) | Volume | 25 |
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| Issue | 5 |
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| Publisher | Canadian Science Publishing |
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| DOI | doi:10.1139/e88-071Search in ResearchGate |
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| Generate Citation Formats |
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| Mindat Ref. ID | 479993 | Long-form Identifier | mindat:1:5:479993:5 |
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| GUID | 0 |
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| Full Reference | Reid, I. (1988) Crustal structure beneath the southern Grand Banks: seismic-refraction results and their implications. Canadian Journal of Earth Sciences, 25 (5) 760-772 doi:10.1139/e88-071 |
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| Plain Text | Reid, I. (1988) Crustal structure beneath the southern Grand Banks: seismic-refraction results and their implications. Canadian Journal of Earth Sciences, 25 (5) 760-772 doi:10.1139/e88-071 |
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| In | (1988, May) Canadian Journal of Earth Sciences Vol. 25 (5) Canadian Science Publishing |
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| Abstract/Notes | A seismic-refraction profile was shot on the southern Grand Banks using large air-gun sources and an array of ocean-bottom seismograph receivers. A sediment column 1–2 km thick directly overlies Paleozoic basement with velocity structure similar to that of the Meguma Zone of Nova Scotia. The main crustal layer is 27 km thick, with seismic velocity of 6.3 km/s increasing to about 6.5 km/s in the lowest few kilometres. Complexity is apparent in the crust–mantle transition around 32 km depth. Comparison with deep multichannel reflection data suggests that the increased velocity in the lower part of the crust may be associated with a reflective zone and shows the Mohorovičić discontinuity to be delineated by a well-defined reflection. The absence of a major lower crustal layer of intermediate velocity (> 7 km/s) is consistent with observations elsewhere in the region. |
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