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Record W2186432496

The Laurentian Basin Revisited

2013· article· en· W2186432496 on OpenAlexaboutno aff
Phonse Fagan, Michael E. Enachescu

Bibliographic record

Venuenot available
Typearticle
Languageen
FieldEarth and Planetary Sciences
TopicGeological Studies and Exploration
Canadian institutionsnot available
Fundersnot available
KeywordsGeologyStructural basinPaleozoicPaleontologyContinental marginMesozoicTectonicsSeismology
DOInot available

Abstract

fetched live from OpenAlex

The Laurentian Basin covers an area of approximately 60,000 square km between the island of Newfoundland and province of Nova Scotia on the Atlantic coast of Canada. As petroleum exploration was restricted in the area until the recent resolution of international and inter-provincial boundary disputes, only one well has been drilled in the basin thus far. This well (Bandol #1) was drilled in French territory, and although no well report or logs have yet been released the operators have reported by in the media that it was a dry hole. Nevertheless this large basin with up to 20 km of Mesozoic/Cenozoic fill in its southern half and which onlaps Paleozoic sediments on its landward flank presents a very significant economic opportunity. Three dimensional “Q” seismic data has been shot over selected parts of the basin by current licence holders and additional drilling is expected to occur within the next couple of years. In preliminary work based on a regional seismic grid, the Geological Survey of Canada (GSC) estimated that the basin could contain recoverable resources of 8-9 trillion cubic feet of natural gas and 600 to 700 million barrels of oil at an average expectation. From a tectonic-stratigraphic point of view, the basin’s location at the intersection of the Mesozoic Scotian Shelf extensional margin and the Southern Grand Banks extensional/strike slip margin, dictates that elements of both systems will be observed in its structural style and stratigraphy. Additionally, the basin partially overlies the confluence of the Paleozoic suture between the Avalon and Meguma terranes and Mesozoic Newfoundland Fracture Zone, and thus provides the opportunity to look for linkages and interplay between the Mesozoic faulting and the pre-existing basement fabric. Laurentian Basin is covered by both industry and government seismic and potential field data which can be tied to several wells in adjacent basins on the Scotian Shelf and Southern Grand Banks to decipher its structure and stratigraphy. In this regard the basin can be subdivided into tectono-stratigraphic packages which can be correlated along strike to the surrounding basins – including within the deep water depocentres. This study also addresses the basin’s petroleum systems including the possibility of Mesozoic reservoirs being sourced by Paleozoic source rocks.

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 imitation

Not 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.

metaresearch head score (Codex)0.000
metaresearch head score (Gemma)0.001
Version: metacan-v3-hybrid-931329e0061cValidation status: machine_predicted_unvalidated
Candidate categoriesnone
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Observational · Consensus signal: none
GenreCandidate signal: Empirical · Consensus signal: none
Teacher disagreement score0.670
Threshold uncertainty score0.655

Distilled classifier scores by category (both heads)

CategoryCodexGemma
Metaresearch0.0000.001
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0010.001
Science and technology studies0.0050.003
Scholarly communication0.0040.002
Open science0.0010.003
Research integrity0.0010.001
Insufficient payload (model declined to judge)0.0100.001

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.

Opus teacher head0.016
GPT teacher head0.183
Teacher spread0.168 · how far apart the two teachers sit on this one work
Validation statusscore_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it

Classification

machine, unvalidated

Machine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.

The models applied no category: nothing in the taxonomy fit this work.
Study designObservational
Domainnot available
GenreEmpirical

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".

Quick stats

Citations1
Published2013
Admission routes1
Has abstractyes

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