2011 AEG Outstanding Student Professional Paper: Comparison of Colluvium, Debris-Flow, and Glacial Deposits Using Sedimentological, Geotechnical, and Geological Properties, Durango, Colorado
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Bibliographic record
Abstract
Research Article| May 01, 2013 2011 AEG Outstanding Student Professional Paper: Comparison of Colluvium, Debris-Flow, and Glacial Deposits Using Sedimentological, Geotechnical, and Geological Properties, Durango, Colorado NATHANIEL R. SWANSON; NATHANIEL R. SWANSON Department of Geology and Geological Engineering, Colorado School of Mines, 1516 Illinois Street, Golden, CO 80401 1Present address: BGC Engineering, 1045 Howe Street, Suite 500, Vancouver, BC V6Z 2A9, Canada; phone: (604) 684-5900, ext. 189; email: nswanson@bgcengineering.ca. Search for other works by this author on: GSW Google Scholar PAUL M. SANTI PAUL M. SANTI Department of Geology and Geological Engineering, Colorado School of Mines, 1516 Illinois Street, Golden, CO 80401 Search for other works by this author on: GSW Google Scholar Environmental & Engineering Geoscience (2013) 19 (2): 99–114. https://doi.org/10.2113/gseegeosci.19.2.99 Article history first online: 02 Mar 2017 Cite View This Citation Add to Citation Manager Share Icon Share MailTo Twitter LinkedIn Tools Icon Tools Get Permissions Search Site Citation NATHANIEL R. SWANSON, PAUL M. SANTI; 2011 AEG Outstanding Student Professional Paper: Comparison of Colluvium, Debris-Flow, and Glacial Deposits Using Sedimentological, Geotechnical, and Geological Properties, Durango, Colorado. Environmental & Engineering Geoscience 2013;; 19 (2): 99–114. doi: https://doi.org/10.2113/gseegeosci.19.2.99 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 SocietyEnvironmental & Engineering Geoscience Search Advanced Search Abstract Colluvium and debris-flow deposits differ from each other and from glacial till and glacial outwash deposits in Durango, CO, in terms of sedimentological properties evaluated using laboratory testing. Testing included grain-size analysis, Atterberg limits, specific gravity, visual angularity, and uncompacted void content (UVC). Grain-size analysis showed that colluvium, glacial deposits, and debris-flow deposits had different grain-size distributions (GSDs) that occupied fields on a GSD graph with some overlap. Debris-flow deposits had the most gravel-sized grains, and colluvium had the most silt- and clay-sized grains, while glacial till and glacial outwash had very similar GSDs between colluvium and debris-flow deposits. Comparisons of angularity to gravel-to-fines (G/F) ratio provided a second graphical method for discriminating between debris-flow, colluvium, and glacial deposits. Generally, colluvium and debris-flow deposits were more angular than glacial till and outwash. Additionally, several linear correlations were recognized between lithology of grains and sedimentological and geotechnical properties, the most significant of which were: (1) The angularity of gravel in glacial till and outwash was positively correlated to sandstone gravel content, (2) the plasticity index of outwash fines was positively correlated to the metamorphic gravel content, (3) the amount of outwash fines was positively correlated to sandstone and metamorphic gravel content, while it was negatively correlated to carbonate gravel content, and (4) rounded and sub-rounded gravel content in outwash was positively correlated to carbonate and extrusive igneous gravel content. This study provides insight into the geomechanical differences between depositional mechanisms in similar semiarid environments. 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) | 0.000 | 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