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Record W7117251896 · doi:10.17580/tsm.2025.12.12

100th anniversary of the discovery of the Verkhnekamskoye deposit of potassium and magnesium salt

2025· article· W7117251896 on OpenAlex

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.

aboutThe title or abstract carries a Canadian signal from the geographic lexicon.
no affNo Canadian affiliation: this work is invisible to an affiliation-only frame.
No Canadian affiliation. An affiliation-only frame, the usual design, would never have seen this work. It is one of the works that make the case for inverting the frame.

Bibliographic record

VenueTsvetnye Metally · 2025
Typearticle
Language
FieldEnvironmental Science
TopicWater Resources and Management
Canadian institutionsnot available
Fundersnot available
KeywordsPotashMagnesiumPotassiumPeriod (music)Sedimentary rockTable (database)

Abstract

fetched live from OpenAlex

The richest natural heritage of the Perm Krai is connected with the ancient Perm Sea. Its drying led to the formation of lagoons, which were eventually covered by sedimentary rocks. As a result, the Verkhnekamskoye deposit of potash and magnesium salts (VDPMS), the largest in the world in terms of ore reserves (after Canada), was formed in the north of the region. This made it possible for the Northern Kama Region to become the largest supplier of table salt and soda for the regions of Russia during the pre–Soviet period, and during the Soviet period it became the most important and practically the only center for the production of potash fertilizers and non-ferrous metals, primarily magnesium and titanium. Based on materials from the State Archive of the Perm Krai (SAPK), the Perm State Archive of Socio-Political History (PermSASPH), the collections of the Solikamsk Museum of Local Lore, the Bereznikov Historical and Art Museum named after I. F Konovalov, corporate museums of Berezniki potash workers, metallurgists and nitrogen workers the contribution of scientists whose research helped Professor Pavel Ivanovich Preobrazhensky discover the world’s richest deposit of potash and magnesium salts in Verkhnekamy on October 5, 1925, is shown. That contributed not only to the rapid industrial and socio-cultural development of the Western Urals, but also ensured the steady growth of industrial potential in many sectors of the national economy, significantly increased the country’s defense capability during the Soviet and post-Soviet periods, and became Russia’s only center for titanium-magnesium production and rare earth elements.

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 score0.556
Threshold uncertainty score0.643

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0000.000
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0000.001
Science and technology studies0.0000.001
Scholarly communication0.0000.000
Open science0.0010.003
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 head0.005
GPT teacher head0.188
Teacher spread0.183 · 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