Early partitioning of Quebec: Microcontinent formation in the Paleoproterozoic
Bibliographic record
Abstract
Research Article| April 01, 2000 Early partitioning of Quebec: Microcontinent formation in the Paleoproterozoic Marc R. St-Onge; Marc R. St-Onge 1Geological Survey of Canada, 601 Booth Street, Ottawa, Ontario K1A 0E8, Canada Search for other works by this author on: GSW Google Scholar David J. Scott; David J. Scott 1Geological Survey of Canada, 601 Booth Street, Ottawa, Ontario K1A 0E8, Canada Search for other works by this author on: GSW Google Scholar Stephen B. Lucas Stephen B. Lucas 1Geological Survey of Canada, 601 Booth Street, Ottawa, Ontario K1A 0E8, Canada Search for other works by this author on: GSW Google Scholar Author and Article Information Marc R. St-Onge 1Geological Survey of Canada, 601 Booth Street, Ottawa, Ontario K1A 0E8, Canada David J. Scott 1Geological Survey of Canada, 601 Booth Street, Ottawa, Ontario K1A 0E8, Canada Stephen B. Lucas 1Geological Survey of Canada, 601 Booth Street, Ottawa, Ontario K1A 0E8, Canada Publisher: Geological Society of America Received: 20 Aug 1999 Revision Received: 14 Dec 1999 Accepted: 03 Jan 2000 First Online: 02 Jun 2017 Online ISSN: 1943-2682 Print ISSN: 0091-7613 Geological Society of America Geology (2000) 28 (4): 323–326. https://doi.org/10.1130/0091-7613(2000)28<323:EPOQMF>2.0.CO;2 Article history Received: 20 Aug 1999 Revision Received: 14 Dec 1999 Accepted: 03 Jan 2000 First Online: 02 Jun 2017 Cite View This Citation Add to Citation Manager Share Icon Share Facebook Twitter LinkedIn Email Permissions Search Site Citation Marc R. St-Onge, David J. Scott, Stephen B. Lucas; Early partitioning of Quebec: Microcontinent formation in the Paleoproterozoic. Geology 2000;; 28 (4): 323–326. doi: https://doi.org/10.1130/0091-7613(2000)28<323:EPOQMF>2.0.CO;2 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 SocietyGeology Search Advanced Search Abstract The distribution of allochthonous versus parautochthonous carbonate platforms, combined with the timing of initial continental-rift magmatism versus the timing of subsequent rifting of the continental margin, provides tectonostratigraphic evidence for the formation and isolation of the oldest documented microcontinent, perhaps as a consequence of the impingement of a mantle plume onto a cratonic margin during the Paleoproterozoic. Initial rifting of the Archean nucleus of North America in eastern Canada is constrained to have been diachronous between 2.17 and 2.03 Ga. Renewed rifting of a segment of the continental margin, 292 to 120 m.y. later, was accompanied by the emplacement of ultramafic layered sills, the accumulation of komatiitic and alkalic basalts, the deposition of banded iron formations and the isolation of a microcontinent and its 1.93 Ga continental shelf succession (subsequently accreted to the telescoped continental margin during collisional orogenesis). You do not have access to this content, please speak to your institutional administrator if you feel you should have access.
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How this classification was reachedexpand
Full frame distilled prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.016 | 0.000 |
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 teacher head, 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".