Nature, origin and tectonic significance of anomalous transverse structures, southeastern Skeena Fold Belt, British Columbia
Bibliographic record
Abstract
Research Article| December 01, 2007 Nature, origin and tectonic significance of anomalous transverse structures, southeastern Skeena Fold Belt, British Columbia Margot McMechan Margot McMechan Geological Survey of Canada, 3303 - 33 Street NW, Calgary, AB T2L 2A7, mmcmecha@nrcan.gc.ca Search for other works by this author on: GSW Google Scholar Author and Article Information Margot McMechan Geological Survey of Canada, 3303 - 33 Street NW, Calgary, AB T2L 2A7, mmcmecha@nrcan.gc.ca Publisher: Canadian Energy Geoscience Association Received: 08 Feb 2006 Accepted: 17 Oct 2006 First Online: 02 Mar 2017 Online ISSN: 2368-0261 Print ISSN: 0007-4802 © The Society of Canadian Petroleum Geologists Bulletin of Canadian Petroleum Geology (2007) 55 (4): 262–274. https://doi.org/10.2113/gscpgbull.55.4.262 Article history Received: 08 Feb 2006 Accepted: 17 Oct 2006 First Online: 02 Mar 2017 Cite View This Citation Add to Citation Manager Share Icon Share Facebook Twitter LinkedIn Email Permissions Search Site Citation Margot McMechan; Nature, origin and tectonic significance of anomalous transverse structures, southeastern Skeena Fold Belt, British Columbia. Bulletin of Canadian Petroleum Geology 2007;; 55 (4): 262–274. doi: https://doi.org/10.2113/gscpgbull.55.4.262 Download citation file: Ris (Zotero) Refmanager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex toolbar search Search Dropdown Menu toolbar search search input Search input auto suggest filter your search All ContentBy SocietyBulletin of Canadian Petroleum Geology Search Advanced Search Abstract An anomalous domain of complex structure occurs in the eastern Skeena Fold Belt at Mosque Mountain, at the northwestern end of a regional belt of Cretaceous Sustut Group exposure. Folds and contractional faults with northwest-and northeast- to east-trends, that are parallel and at a high angle to the regional structural trend respectively, deform Jurassic Hazelton and Bowser Lake groups and unconformably overlying Sustut Group strata in this area.Anomalous structural trends at Mosque Mountain appear to reflect a history of superposed deformation. The older deformation occurred prior to and during deposition of the Middle Albian or younger basal Sustut Group. It caused the formation of a northwest-trending “basement” uplift of Hazelton and Bowser rocks whose abrupt northwest termination directly underlies the Mosque Mountain area. The main post late Campanian to early Maastrichtian contractional deformation formed northwest- and northeast- to east-trending structures in the Mosque Mountain area. Structural geometries and cross-cutting relationships suggest these nearly orthogonal contractional structures formed alternately. These relationships are most reasonably attributed to deformation on alternately active detachments or (blind) thrusts. Northwest-trending structures conform to regional strain patterns. Northeast- to east-trending structures were most likely caused by detachment deflection at the transverse, north end of the “basement” uplift; by movement up an oblique ramp formed by the geometric inversion of the north end of the “basement” uplift along a blind thrust, and/or reactivation of the north margin of the “basement” uplift. Geometric inversion of the early formed “basement” uplift on a footwall flat probably produced the south-facing monocline that localized the northwestern limit of preserved Sustut strata to the Mosque Mountain area. Late dextral oblique-slip and extensional faults cross-cut Skeena Fold Belt structures and indicate that transtensional deformation, common in the Central Interior of British Columbia, extended northward into the Mosque Mountain area. You do not have access to this content, please speak to your institutional administrator if you feel you should have access.
Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.
How this classification was reachedexpand
Full frame machine prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.
Distilled classifier scores by category (both heads)
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.001 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.002 | 0.004 |
| Science and technology studies | 0.002 | 0.001 |
| Scholarly communication | 0.001 | 0.000 |
| Open science | 0.000 | 0.001 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.009 | 0.001 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedMachine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".