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Record W2908667986 · doi:10.4095/212115

Late Holocene pollen stratigraphy of Lake Louise, Manitoba

2001· report· en· W2908667986 on OpenAlexaffabout
G R Brooks, A Grenier

Bibliographic record

Venuenot available
Typereport
Languageen
FieldEarth and Planetary Sciences
TopicGeology and Paleoclimatology Research
Canadian institutionsNatural Resources Canada
Fundersnot available
KeywordsHoloceneStratigraphyGeologyPollenPhysical geographyPaleontologyArchaeologyGeographyEcologyBiology

Abstract

fetched live from OpenAlex

The late Holocene pollen stratigraphy of Lake Louise, Manitoba, consists of two zones, zone 1 from 35 cm to 64.5 cm deep, and zone 2 extending from 0 to 30 cm deep; the transition from zone 1 to zone 2 occurs between sampling points at depths of 30 cm and 35 cm. Zone 1 predates the establishment of European agricultural prac- tices and is interpreted to resemble an open oak savannah community, but with the oak present marginal to the lake and nearby Red River channel rather than being dispersed as an open forest. Within zone 2, the rise at 30 cm ofAmbrosia , Liguliflorae, Cruciferae, and cereal species of Gramineae is interpreted to represent large-scale land disturbance caused by the introduction of European agricultural practices during the late 1870s and early 1880s. Chronological data suggest an increase of about ten times in the sedimentation rate in Lake Louise within zone 2 relative to zone 1.

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: Observational · Consensus signal: Observational
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.157
Threshold uncertainty score0.316

Distilled classifier scores by category (both heads)

CategoryCodexGemma
Metaresearch0.0000.000
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0020.002
Science and technology studies0.0010.000
Scholarly communication0.0010.000
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 head0.046
GPT teacher head0.275
Teacher spread0.228 · 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 designObservational
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

Citations5
Published2001
Admission routes2
Has abstractyes

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