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Record W2891947499 · doi:10.1190/segam2018-2998497.1

Results from a galvanic HeliSAM survey over the Patterson Lake South uranium deposit

2018· article· en· W2891947499 on OpenAlex
David Bingham, Scott Napier, T Mathieson

Why this work is in the frame

A frame that forgets how it found something cannot be audited. These are the routes that admitted this work.

affAt least one author lists a Canadian institution in the pinned OpenAlex snapshot.

Bibliographic record

Venuenot available
Typearticle
Languageen
FieldEngineering
TopicGeophysical Methods and Applications
Canadian institutionsMira Geoscience (Canada)
Fundersnot available
KeywordsUraniumGalvanic cellInversion (geology)GeologyElectrical resistivity and conductivityMagnetometerDipoleElectrical engineeringGeophysicsMaterials scienceGeomorphologyEngineeringPhysicsMagnetic fieldMetallurgy

Abstract

fetched live from OpenAlex

A galvanic HeliSAM survey was undertaken over the Patterson Lake South uranium deposit in 2016. The galvanic HeliSAM survey uses a large grounded electric dipole and a mobile cesium vapor magnetometer to simultaneously yield magnetic, magnetometric resistivity and electromagnetic data. Inversion of the MMC data was completed with two approaches, an approximate gravity inversion analogue and a full 3D solution of Maxwell‖s Equations. The gravity 3D inversion analogue was found to be poor substitute for full 3D EM inversion. The HeliSAM survey detected numerous structural features and outlined portions of the north and south mineralized conductors. It also confirmed cross structural features inferred from the DC Resistivity survey. It appears results from the galvanic magnetometric conductivity (MMC) mode of operation are crucially dependent on the placement of the ground current electrodes for complex trends, so care must be taken for grounded electrode placement. The similarity of inverted MMC/TFEM and the inferred structures very likely makes it a good replacement for EM and gradient resistivity. Ground DC resistivity surveying, with multiple current injection locations, will provide better results for more complicated features, but with a downside of greater cost. With proper use, the HeliSAM system is a powerful new tool in the geophysics collection. Presentation Date: Tuesday, October 16, 2018 Start Time: 9:20:00 AM Location: Poster Station 15 Presentation Type: Poster

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.

Full frame distilled prediction

Teacher imitation

Not 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.

metaresearch head score (Codex)0.000
metaresearch head score (Gemma)0.000
Version: codex-gemma-dda1882f352aValidation 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: Empirical
Teacher disagreement score0.940
Threshold uncertainty score0.595

Codex and Gemma teacher scores by category

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

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 head0.024
GPT teacher head0.248
Teacher spread0.224 · 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

Quick stats

Citations0
Published2018
Admission routes1
Has abstractyes

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