Mantle wedge serpentinization and exhumation of eclogites: Insights from eastern Ladakh, northwest Himalaya
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Bibliographic record
Abstract
Research Article| March 01, 2000 Mantle wedge serpentinization and exhumation of eclogites: Insights from eastern Ladakh, northwest Himalaya Stéphane Guillot; Stéphane Guillot 1Centre National de la Recherche Scientifique, Université de Lyon I, 69622 Villeurbanne, France Search for other works by this author on: GSW Google Scholar Kéiko H. Hattori; Kéiko H. Hattori 2Department of Earth Sciences, University of Ottawa, Ottawa, Ontario K1N 6N5, Canada Search for other works by this author on: GSW Google Scholar Julia de Sigoyer Julia de Sigoyer 3Institut de Géologie, Universite de Neuchâtel, CH-2007 Neuchâtel, Switzerland Search for other works by this author on: GSW Google Scholar Author and Article Information Stéphane Guillot 1Centre National de la Recherche Scientifique, Université de Lyon I, 69622 Villeurbanne, France Kéiko H. Hattori 2Department of Earth Sciences, University of Ottawa, Ottawa, Ontario K1N 6N5, Canada Julia de Sigoyer 3Institut de Géologie, Universite de Neuchâtel, CH-2007 Neuchâtel, Switzerland Publisher: Geological Society of America Received: 12 Jul 1999 Revision Received: 01 Nov 1999 Accepted: 09 Nov 1999 First Online: 02 Jun 2017 Online ISSN: 1943-2682 Print ISSN: 0091-7613 Geological Society of America Geology (2000) 28 (3): 199–202. https://doi.org/10.1130/0091-7613(2000)28<199:MWSAEO>2.0.CO;2 Article history Received: 12 Jul 1999 Revision Received: 01 Nov 1999 Accepted: 09 Nov 1999 First Online: 02 Jun 2017 Cite View This Citation Add to Citation Manager Share Icon Share Facebook Twitter LinkedIn MailTo Tools Icon Tools Get Permissions Search Site Citation Stéphane Guillot, Kéiko H. Hattori, Julia de Sigoyer; Mantle wedge serpentinization and exhumation of eclogites: Insights from eastern Ladakh, northwest Himalaya. Geology 2000;; 28 (3): 199–202. doi: https://doi.org/10.1130/0091-7613(2000)28<199:MWSAEO>2.0.CO;2 Download citation file: Ris (Zotero) Refmanager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex toolbar search Search Dropdown Menu toolbar search search input Search input auto suggest filter your search All ContentBy SocietyGeology Search Advanced Search Abstract In eastern Ladakh, northwest Himalaya, serpentinite layers occur in close association with eclogites. The occurrence of metamorphic olivine and talc in serpentinites suggests that the serpentinization and eclogitization took place under similar conditions (600 °C, 20 kbar). The serpentinites and eclogites show similar deformation, including the direction of normal shearing. The highly refractory nature of the serpentinite protolith, as shown by the composition of bulk rocks and chromite and the concentrations of Re and platinum group elements, indicates their derivation from mantle wedge. We propose that the serpentinites formed by hydration of the mantle wedge as a result of dewatering of the subducted slab. The serpentinites then facilitated exhumation of the subducted rocks by acting as a lubricant. At shallow depths, sediments are generally considered to be the lubricant for the exhumation, but serpentinites may commonly take over this role at greater depths. Under sediment-poor conditions, serpentinites may contribute to the exhumation even at shallower depths. This may explain the close spatial association of serpentinites and partially hydrated peridotites with many well-known high-pressure to ultrahigh-pressure metamorphic belts worldwide. You do not have access to this content, please speak to your institutional administrator if you feel you should have access.
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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) | 0.058 | 0.001 |
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