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Record W2899481066

The sedimentology, stratigraphy and reservoir characteristics of the Montney D1 and D2 horizons in the Greater Pouce Coupe area

2018· article· en· W2899481066 on OpenAlexaffvenue
Donald Prenoslo, Carolyn M. Furlong, Murray K. Gingras, Tiffany Playter, John‐Paul Zonneveld

Bibliographic record

VenueBulletin of Canadian Petroleum Geology · 2018
Typearticle
Languageen
FieldEarth and Planetary Sciences
TopicGeological formations and processes
Canadian institutionsUniversity of Alberta
Fundersnot available
KeywordsGeologyProgradationMass wastingGrabenSedimentologyGeochemistryGeomorphologySedimentPaleontologyFaciesTectonics
DOInot available

Abstract

fetched live from OpenAlex

Abstract Deposited immediately following the Montney lowstand turbidites, the moderate porosity and low permeability siltstones of the Montney D1 and D2 horizons are important exploration targets. Eight lithofacies are identified, based on detailed sedimentological and ichnological observations. Deposition took place in the distal offshore to offshore-transition area. Linear sourced turbidity currents are thought to have been the most important mechanism for sediment deposition. An arid coastline, with numerous ephemeral river systems that transported large amounts of sediment to the coast during storms, created an over steepened shoreface profile which would have been prone to mass wasting events. The study area overlies the southeastern extension of the Fort St. John Graben complex, and structural reactivations throughout the deposition of the D1 and D2 horizons played a major role in controlling the location of major sediment accumulations. The D1-D2 transition is characterized by the presence of silty shale beds. The presence of appreciable amounts of clay in the Montney is rare except for a few areas. These areas are interpreted to have been deposited under the influence of perennial deltaic systems. During the D1-D2 transition, silty shale beds indicate that there was a perennial river system running through the Hines Creek Graben sourcing the clays.

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)0.000
Version: metacan-v3-hybrid-931329e0061cValidation status: machine_predicted_unvalidated
Candidate categoriesnone
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Not applicable · Consensus signal: none
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.599
Threshold uncertainty score0.797

Distilled classifier scores by category (both heads)

CategoryCodexGemma
Metaresearch0.0000.000
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0010.001
Science and technology studies0.0010.000
Scholarly communication0.0000.000
Open science0.0000.000
Research integrity0.0000.000
Insufficient payload (model declined to judge)0.0020.000

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.

Opus teacher head0.011
GPT teacher head0.184
Teacher spread0.173 · 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 designNot applicable
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

Citations4
Published2018
Admission routes2
Has abstractyes

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