NUEVAS EVIDENCIAS SOBRE EL MAGMATISMO MIOCENICO EN EL DISTRITO MINERO DE VETAS-CALIFORNIA (MACIZO DE SANTANDER, CORDILLERA ORIENTAL, COLOMBIA)
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Bibliographic record
Abstract
In The Vetas-California Mining District (DMVC), igneous rocks with porphyritic-aphanitic and porphyriticphaneritic textures crop out, which are related to the Miocene and most recent magmatic event known for the Santander Massif. The emplacement of these rocks is apparently controlled by the intersections of NNW faults (similar in direction to the Bucaramanga-Santa Marta fault) and the NE fault systems. Porphyritic-phaneritic quartz’ monzodiorites and granodiorite rocks are confined to the eastern part of the studied area; meanwhile the porphyritic-aphanitic andesite and rhyodacitic rocks are confined to the western part. The two types of igneous rocks dated in this study; a porphyritic andesite variety (located to the western part of the studied area) and a granodiorite with prophyritic-phaneritic texture (located to the eastern part); yielded ages of 10.1 ± 0.2 and 10.9 ± 0.2 Ma, respectively (U-Pb method on zircons, using the LA-MC-ICPMS technique: laser ablation inductively coupled plasma multicollector mass spectrometry). These ages, together with previously published data, indicate that magmatic pulse lasted up to 2.5 Ma. The presence of Miocene igneous rocks affected by hydrothermal alteration and with epithermal and porphyry style mineralization, and the absence of igneous rocks younger than 8.4 m.y. (at least currently not known), allow to propose that during some time(s) of the Miocenic magmatic pulse,could take place magmatic-hydrothermal processes related to mineralizing events in the DMVC.
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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 | 0.001 | 0.001 |
| Meta-epidemiology (narrow) | 0.001 | 0.001 |
| Meta-epidemiology (broad) | 0.001 | 0.000 |
| Bibliometrics | 0.000 | 0.001 |
| Science and technology studies | 0.001 | 0.001 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.001 | 0.000 |
| Research integrity | 0.001 | 0.001 |
| Insufficient payload (model declined to judge) | 0.024 | 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