Crustal features of the Claritas Rise region indicate a mobile lithosphere on early Mars
Bibliographic record
Abstract
Abstract Ancient Martian orogenesis remains controversial, ranging from mantle plumes to continental-scale gravity sliding to plate tectonism. Here, we consider Claritas Rise, an ancient, complex, Martian orogeny, as a case study in mountain building resulting from mobile lithospheric activity, using a geologic synthesis of comparative planetology. Claritas's juxtaposed serpentine and carbonate rocks, along a structurally controlled margin, compares to Earth's serpentine mélanges (e.g., Altai) that result from continental collisional processes. A less dense, older, deformed felsic/feldspathic crust may cause Claritas's gravity lows, as occurs in Earth's convergent plate boundary settings (e.g., Himalayas, Japan, Andes). This geochemically matches its regionally elevated incompatibles, potassium and thorium, relative to younger embaying lava flows. Claritas’ tectonic structures geometrically resemble the transtensional-extensional features of the Baikal Rift System located in southeastern Russia. Steeply dipping beds along a northeast-oriented ridge of Claritas also contain blocks resembling Earth's olistostromes. A mega-geomorphological pattern of landforms, including Claritas at its center, approximates that of the Western United States (i.e., where denser mafic Farallon Plate subducted beneath the buoyant, mafic/felsic North American Plate). An ancient mobile lithosphere offers a unifying explanation for these Earth counterparts on Mars while also addressing other features of interest, including crustal thickness differences across the topographic dichotomy and andesite-granite detections.
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 imitationNot 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.
Distilled classifier scores by category (both heads)
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.002 | 0.001 |
| Science and technology studies | 0.001 | 0.000 |
| Scholarly communication | 0.001 | 0.000 |
| Open science | 0.000 | 0.001 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.003 | 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 itClassification
machine, unvalidatedMachine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.
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".