Katnick, Deanne C, Mustard, Peter S (2003) Geology of Denman and Hornby islands, British Columbia: implications for Nanaimo Basin evolution and formal definition of the Geoffrey and Spray formations, Upper Cretaceous Nanaimo Group. Canadian Journal of Earth Sciences, 40 (3) 375-393 doi:10.1139/e03-005
| Reference Type | Journal (article/letter/editorial) | ||
|---|---|---|---|
| Title | Geology of Denman and Hornby islands, British Columbia: implications for Nanaimo Basin evolution and formal definition of the Geoffrey and Spray formations, Upper Cretaceous Nanaimo Group | ||
| Journal | Canadian Journal of Earth Sciences | ||
| Authors | Katnick, Deanne C | Author | |
| Mustard, Peter S | Author | ||
| Year | 2003 (March 1) | Volume | 40 |
| Issue | 3 | ||
| Publisher | Canadian Science Publishing | ||
| DOI | doi:10.1139/e03-005Search in ResearchGate | ||
| Generate Citation Formats | |||
| Mindat Ref. ID | 483792 | Long-form Identifier | mindat:1:5:483792:7 |
| GUID | 0 | ||
| Full Reference | Katnick, Deanne C, Mustard, Peter S (2003) Geology of Denman and Hornby islands, British Columbia: implications for Nanaimo Basin evolution and formal definition of the Geoffrey and Spray formations, Upper Cretaceous Nanaimo Group. Canadian Journal of Earth Sciences, 40 (3) 375-393 doi:10.1139/e03-005 | ||
| Plain Text | Katnick, Deanne C, Mustard, Peter S (2003) Geology of Denman and Hornby islands, British Columbia: implications for Nanaimo Basin evolution and formal definition of the Geoffrey and Spray formations, Upper Cretaceous Nanaimo Group. Canadian Journal of Earth Sciences, 40 (3) 375-393 doi:10.1139/e03-005 | ||
| In | (2003, March) Canadian Journal of Earth Sciences Vol. 40 (3) Canadian Science Publishing | ||
| Abstract/Notes | The Upper Cretaceous Nanaimo Group of southwest British Columbia is a >4 km-thick succession consisting mostly of deep marine siliciclastics deposited directly on the Insular Superterrane. As such, this succession has been the focus of several paleomagnetic, isotope geochemistry, paleontology, and sedimentology studies in attempts to elucidate the tectonic history and paleolatitude of the Insular Superterrane and associated entities during the critical time of Nanaimo Group deposition (ca. 9065 Ma). However, disagreement as to whether deposition occurred into a single or multiple basins has led to confusion concerning the formal stratigraphy and formation names for the succession, and has resulted in problems with both local and regional correlations. The upper two-thirds of the succession is continuously and well exposed on Denman and Hornby islands and represents the best example of this part of the succession in the northern half of what we consider the single Nanaimo Basin. This area includes the previously only informally defined type areas for the Geoffrey and Spray formations, defined here formally for the first time with type sections and detailed descriptions. New interpretations of the geology of these islands demonstrate that previously interpreted major faults do not exist, resulting in stratigraphic and age controls that are both different and simpler than previously interpreted. The redefined stratigraphy of the northern part of the basin is remarkably similar to that of southern areas in both type and age, affirming both a single basin evolution and a single stratigraphic nomenclature. | ||
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