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Record W1978249929 · doi:10.1130/g24590a.1

The roof of an axial magma chamber: A hornfelsic heat exchanger

2008· article· en· W1978249929 on OpenAlex
K. M. Gillis

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.

affAt least one author lists a Canadian institution in the pinned OpenAlex snapshot.
aboutThe title or abstract carries a Canadian signal from the geographic lexicon.

Bibliographic record

VenueGeology · 2008
Typearticle
Languageen
FieldEarth and Planetary Sciences
TopicGeological and Geochemical Analysis
Canadian institutionsUniversity of Victoria
Fundersnot available
KeywordsMagma chamberGeologyCitationMagmaCrustGeophysicsGeochemistryLibrary scienceComputer scienceVolcano

Abstract

fetched live from OpenAlex

Research Article| April 01, 2008 The roof of an axial magma chamber: A hornfelsic heat exchanger Kathryn M. Gillis Kathryn M. Gillis 1School of Earth and Ocean Sciences, University of Victoria, P.O. Box 3055 STN CSC, Victoria, British Columbia V8W 3P6, Canada Search for other works by this author on: GSW Google Scholar Geology (2008) 36 (4): 299–302. https://doi.org/10.1130/G24590A.1 Article history received: 25 Jul 2007 rev-recd: 03 Dec 2007 accepted: 05 Dec 2007 first online: 03 Mar 2017 Cite View This Citation Add to Citation Manager Share Icon Share Facebook Twitter LinkedIn MailTo Tools Icon Tools Get Permissions Search Site Citation Kathryn M. Gillis; The roof of an axial magma chamber: A hornfelsic heat exchanger. Geology 2008;; 36 (4): 299–302. doi: https://doi.org/10.1130/G24590A.1 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 The heat flux from an axial magma chamber into the convecting hydrothermal system at mid-ocean ridges is governed by the conductive boundary layer separating them. The nature of this critical interface has been modeled and seismically imaged, but its characteristics have hitherto rarely been documented in ocean crust. Here, hornfelsic rocks from the sheeted dike–gabbro transitions at two tectonic exposures of fast-spreading East Pacific Rise crust at the Pito and Hess Deeps and in the Oman and Troodos ophiolites are described. These rocks record thermal metamorphism to hornblende and pyroxene hornfels at 700–1000 °C. These temperatures, in conjunction with their geological relationships, imply that the hornfels are preserved fragments of conductive boundary layers. Their distribution at the base of sheeted dike complexes in narrow contact aureoles and dikes intruding the uppermost gabbros tracks the vertical migration of axial magma chambers over minimum depth ranges of 200–400 m. The heat flux across the hornfelsic aureoles (11–44 MW/km) is comparable to hydrothermal fluxes released along fast-spreading ridges, confirming that the heat driving hydrothermal convection is transferred across conductive boundary layers. You do not have access to this content, please speak to your institutional administrator if you feel you should have access.

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.

Full frame distilled prediction

Teacher imitation

Not 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.

metaresearch head score (Codex)0.000
metaresearch head score (Gemma)0.000
Version: codex-gemma-dda1882f352aValidation status: machine_predicted_unvalidated
Candidate categoriesInsufficient payload (model declined to judge)
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Observational · Consensus signal: Observational
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.029
Threshold uncertainty score0.992

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0000.000
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0000.000
Science and technology studies0.0000.000
Scholarly communication0.0000.000
Open science0.0000.000
Research integrity0.0000.000
Insufficient payload (model declined to judge)0.0090.000

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 head0.015
GPT teacher head0.195
Teacher spread0.180 · 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