Chapter 20 Eurasian orogens and Arctic tectonics: an overview
Why this work is in the frame
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Bibliographic record
Abstract
Abstract This review summarizes our current understanding of the major Eurasian orogens in the context of Arctic tectonics: the Ediacaran Timanides, the middle Palaeozoic Caledonides, the late Palaeozoic Uralides and the Mesozoic fold belts of Taimyr and Verkhoyansk. Controversies and problems are associated with the: (i) regional extent, timing, and nature of deformation associated with Ediacaran Timanian orogenesis; (ii) northward extent of Caledonian deformation; (iii) continuation of Permo-Carboniferous Uralian orogenesis on Novaya Zemlya and understanding this deformation in Taimyr; (iv) timing, location and style of deformation associated with Mesozoic deformation in Taimyr and Verkhoyansk, and its relationship to the opening of the Amerasia Basin; (v) original size of the Arctic Alaska–Chukotka microplate (AACM) and the nature of its boundaries, including the timing and amount of extension of the AACM and the location of the South Anyui Suture; and (vi) age and nature of pre-Okhotsk–Chukotka volcano-plutonic belt basement across eastern Russia and western Alaska and its relationship to the development of the Canada Basin/Amerasia Basin. The resolution of these controversies is needed to test hypotheses for the tectonic development of the Amerasia Basin, in particular, and for understanding the tectonic development of the Circum-Arctic as a whole.
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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) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| 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) | 0.009 | 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