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Record W1987097228 · doi:10.1179/aes.2001.110.2.81

New production in the Idaho Cobalt Belt: a unique metallogenic province

2001· article· en· W1987097228 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

VenueApplied Earth Science Transactions of the Institutions of Mining and Metallurgy Section B · 2001
Typearticle
Languageen
FieldEngineering
TopicExtraction and Separation Processes
Canadian institutionsnot available
Fundersnot available
KeywordsGeologyCobaltGeochemistryMining engineeringProduction (economics)MetallurgyMaterials scienceEconomics

Abstract

fetched live from OpenAlex

The Idaho Cobalt Belt (ICB) is a unique example of sea-floor hydrothermal brines that vented along an ancient rift within a deep-water setting, providing for an interesting and distinctive geochemistry. The ICB is a northwest-trending zone of Co-Cu-Au occurrences, at least 64 km long and up to 10 km wide, centred on the Blackbird mine. It is an exceptional metallogenic province in which cobalt occurs in sufficiently high concentrations to make it the primary metal in the deposits. The deposits are mostly strata-bound and appear to have formed during a mafic volcanogenic-exhalative mineralizing event on a palaeo-sea-floor ca 1600 m.y. ago. Regional metamorphic events have remobilized Cu and, to a lesser extent, Co in varying degrees throughout the belt. The deposits are unusually rich in Co, Cu, Fe, As, Au, B, Bi and light rare earths, but low in Ni (relative to Co), Ag, Pb, and Zn. The synsedimentary controls, mineralogy and geochemistry are unusual among ore deposits, though similar features in some other deposits are known. Sediment-hosted deposits are major ore producers in the world, but most tend to be Pb- and Zn-rich. Some sediment-hosted deposits that contain Cu also contain Co—notably, the deposits of the Zambian Copperbelt. Significant differences exist between deposits in the Zambian Copperbelt and the ICB, whereas many intriguing similarities are found between ICB deposits and Sullivan, Canada, and Mount Isa and Broken Hill, Australia.The ICB is currently known to host 18 Co-Cu deposits within eight sequences of metamorphosed, mafic volcaniclastic rocks. Additional exploration is expected to discover more deposits as only a small portion of the belt has undergone systematic exploration. Formation Capital's Idaho cobalt project encircles the inactive Blackbird mine and encompasses the Ram and Sunshine deposits as well as more than 30 prospects and six deposits. The project's total resource base exceeds 5 000 000 t in four deposits, all of which remain open in at least two directions. To date, only two of the deposits have been included in pre-feasibility studies—Ram and Sunshine. The project is in the final feasibility, permitting and pre-development phase.

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)0.001
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: Bench or experimental · Consensus signal: none
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.622
Threshold uncertainty score0.330

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0010.000
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0000.002
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 head0.020
GPT teacher head0.244
Teacher spread0.223 · 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