Ore-Stage Veins at the Sigma Orogenic Gold Deposit Are Spatially Clustered, Not Stress-Shadow Repulsive: a Drill-Core Test, and Why Declustering Fabricates GOE (Val-d'Or, Abitibi, Canada)

Version 2. Tests whether ore-stage extensional veins at the Sigma orogenic gold deposit (Val-d'Or, Canada) show stress-shadow spatial repulsion. Using 235 quartz-carbonate vein intercepts from four diamond drill holes (public report GM 69917), and applying no declustering (which would act as an artificial hard core, truncating P(s->0) and forcing <r> toward GOE), the along-hole vein spacing is clustered, not repulsive: pooled <r>=0.344, CV=1.45; a permutation test gives <r>_shuf=0.33 (obs ~ shuf), so the clustering is a marginal property of the broad vein-corridor spacing distribution, not sequential memory; GOE rejected at p<1e-4. Corroborated by an independent fracture network and published vein arrays. The note also demonstrates that minimum-separation declustering fabricates spurious GOE statistics from random points. CHANGES FROM v1 (ERRATUM): the spatial analysis is unchanged. The temporal framing is corrected. v1 described orogenic-gold mineralization timing as "temporal level repulsion (GOE)" and framed the paper as a "time-space asymmetry". Per a subsequent audit (10.5281/zenodo.20980670), a charge-and-release source is a relaxation oscillator whose timing is a narrow scalar clock (high but shuffle-invariant <r>, no spectral rigidity, unresolvable given age errors), not level repulsion; genuine Wigner-Dyson statistics require a chaotic, strongly-mixed spectrum. v2 reframes the result as "temporal scalar clock + spatial clustering". The superposition-to-Poisson principle underlying the spatial argument is unaffected.

Authors

Institutions

Publication Details

Journal
Zenodo (CERN European Organization for Nuclear Research)
Published
2026-06-28
DOI
https://doi.org/10.5281/zenodo.20778696
Primary Topic
Geochemistry and Geologic Mapping
Type
preprint
Controls
|||
ALL TIME
JAN
FEB
MAR
APR
MAY
JUN
JUL
AUG
SEP
OCT
preprint

Ore-Stage Veins at the Sigma Orogenic Gold Deposit Are Spatially Clustered, Not Stress-Shadow Repulsive: a Drill-Core Test, and Why Declustering Fabricates GOE (Val-d'Or, Abitibi, Canada)

Ruqing Chen
Zenodo (CERN European Organization for Nuclear Research)
Geochemistry and Geologic Mapping
preprint

Ore-Stage Veins at the Sigma Orogenic Gold Deposit Are Spatially Clustered, Not Stress-Shadow Repulsive: a Drill-Core Test, and Why Declustering Fabricates GOE (Val-d'Or, Abitibi, Canada)

Ruqing Chen
preprint en

Abstract

Version 2. Tests whether ore-stage extensional veins at the Sigma orogenic gold deposit (Val-d'Or, Canada) show stress-shadow spatial repulsion. Using 235 quartz-carbonate vein intercepts from four diamond drill holes (public report GM 69917), and applying no declustering (which would act as an artificial hard core, truncating P(s->0) and forcing <r> toward GOE), the along-hole vein spacing is clustered, not repulsive: pooled <r>=0.344, CV=1.45; a permutation test gives <r>_shuf=0.33 (obs ~ shuf), so the clustering is a marginal property of the broad vein-corridor spacing distribution, not sequential memory; GOE rejected at p<1e-4. Corroborated by an independent fracture network and published vein arrays. The note also demonstrates that minimum-separation declustering fabricates spurious GOE statistics from random points. CHANGES FROM v1 (ERRATUM): the spatial analysis is unchanged. The temporal framing is corrected. v1 described orogenic-gold mineralization timing as "temporal level repulsion (GOE)" and framed the paper as a "time-space asymmetry". Per a subsequent audit (10.5281/zenodo.20980670), a charge-and-release source is a relaxation oscillator whose timing is a narrow scalar clock (high but shuffle-invariant <r>, no spectral rigidity, unresolvable given age errors), not level repulsion; genuine Wigner-Dyson statistics require a chaotic, strongly-mixed spectrum. v2 reframes the result as "temporal scalar clock + spatial clustering". The superposition-to-Poisson principle underlying the spatial argument is unaffected.

Zenodo (CERN European Organization for Nuclear Research)
Energoservis (Czechia) (CZ)
Geochemistry and Geologic Mapping
AI Navigator

Ask Laika to Summarize, Analyze, and Connect papers live on the map.

Summarize Papers & Methodologies

Extract key findings, datasets, and comparative methods across publications.

Benchmark Rankings & Visual Analytics

Rank top research institutions, authors, funders, topics, and journals by Field-Weighted Citation Impact (FWCI) and paper volume with instant charts.

Connect Distant Disciplines

Bridge topological clusters on the map to find hidden collaborative intersections.