Palmer, Sarah E, Waldron, John W.F, Skilliter, D M (2002) Post-Taconian shortening, inversion and strike slip in the Stephenville area, western Newfoundland Appalachians. Canadian Journal of Earth Sciences, 39 (9) 1393-1410 doi:10.1139/e02-041
| Reference Type | Journal (article/letter/editorial) | ||
|---|---|---|---|
| Title | Post-Taconian shortening, inversion and strike slip in the Stephenville area, western Newfoundland Appalachians | ||
| Journal | Canadian Journal of Earth Sciences | ||
| Authors | Palmer, Sarah E | Author | |
| Waldron, John W.F | Author | ||
| Skilliter, D M | Author | ||
| Year | 2002 (September 1) | Volume | 39 |
| Issue | 9 | ||
| Publisher | Canadian Science Publishing | ||
| DOI | doi:10.1139/e02-041Search in ResearchGate | ||
| Generate Citation Formats | |||
| Mindat Ref. ID | 483718 | Long-form Identifier | mindat:1:5:483718:7 |
| GUID | 0 | ||
| Full Reference | Palmer, Sarah E, Waldron, John W.F, Skilliter, D M (2002) Post-Taconian shortening, inversion and strike slip in the Stephenville area, western Newfoundland Appalachians. Canadian Journal of Earth Sciences, 39 (9) 1393-1410 doi:10.1139/e02-041 | ||
| Plain Text | Palmer, Sarah E, Waldron, John W.F, Skilliter, D M (2002) Post-Taconian shortening, inversion and strike slip in the Stephenville area, western Newfoundland Appalachians. Canadian Journal of Earth Sciences, 39 (9) 1393-1410 doi:10.1139/e02-041 | ||
| In | (2002, September) Canadian Journal of Earth Sciences Vol. 39 (9) Canadian Science Publishing | ||
| Abstract/Notes | Deformed terrigenous and carbonate sedimentary rocks representing the early Paleozoic Laurentian continental margin form a series of elongate, fault-bounded blocks that plunge north beneath the Humber Arm Allochthon in the Stephenville area, west Newfoundland Appalachians. The continental shelf succession was folded and thrust-faulted after emplacement of the Humber Arm Allochthon. In the west of the area, Table Mountain is cut by a "pop-up" structure bounded by downward-converging reverse faults. Structures at the east margin of Table Mountain indicate both dextral and reverse slip. The Phillips Brook Structure, farther east, contains multiple, fault-bounded carbonate slices; one slice, carried by the West Blanche Brook fault, is thrust over the Humber Arm Allochthon. The western edge of the Indian Head massif, consisting of Grenville basement, is also a thrust contact. These reverse faults and thrusts, which cut the carbonate succession and postdate emplacement of the Humber Arm Allochthon, are in turn overprinted by structures formed during dextral strike-slip motion. Unconformable Early Carboniferous cover postdates most of the deformation. Cross-sections indicate shortening of a few kilometres, and basement was clearly involved in the deformation. The Port au Port Peninsula, immediately to the west, records a history of Acadian inversion of Taconian basins. The prevalence of pop-up structures and mappable variations within the stratigraphic units forming the top of the carbonate succession indicate that a complex geometry of Taconian horsts and grabens was inverted during post-Taconian (?Acadian) shortening and dextral strike-slip motion. These relationships suggest a variety of attractive targets in petroleum exploration. | ||
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