New insight into Saanich Inlet varved sediments (British Columbia, Canada) from micro-scale analysis of sedimentary facies and micro-XRF core scanning analyses
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.
Bibliographic record
Abstract
The late Pleistocene and Holocene laminated marine sediments deposited in Saanich Inlet, British Columbia, contain a well-known annually resolved record of environmental change. In this paper, these sediments were analyzed for the first time with an Itrax micro-X-ray fluorescence core scanner with a resolution of 100 μm. These analyses were complemented by image analysis of backscattered scanning electron images, coupled with energy dispersive spectrometry analysis using a scanning electron microscope. Using this new information, nine sedimentary facies were identified based on distinct geochemical, sedimentological and morphological characteristics at both the macro and the microscopic scale:Facies 1: massive deposit during Termination 1 (T1),Facies 2: T1 varved sediment,Facies 3: early Holocene varved sediment,Facies 4: volcanic ash-rich sediment,Facies 5: mid-Holocene varved sediment,Facies 6: disturbed sediment,Facies 7: massive sediment,Facies 8: clay-rich layer,Facies 9: fecal pellet-rich sediment.We determined how these analyses reinforced or refined previous interpretations about the sedimentary processes responsible for their deposition, their sedimentary environments and/or their provenance with seasonal to sub-seasonal resolution. Each lithofacies has distinctive chemical and sedimentological signatures, which can be used to establish sediment provenance with seasonal to sub-seasonal resolution, and to help understand paleoclimatic variations.
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Full frame distilled prediction
Teacher imitationNot 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.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.001 | 0.000 |
| Bibliometrics | 0.000 | 0.001 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.013 | 0.000 |
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.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it