CHARACTERIZING ZIRCON PORPHYRY COPPER FERTILITY CHARACTERISTICS IN THE EVOLVING LARAMIDE ARC, EAST-CENTRAL ARIZONA
Bibliographic record
Abstract
Variable Proterozoic Continental Basement Laramide Arc • Arc magmatism migrated eastward • Composite intrusive complexes • Dioritic to granitic intrusions • Magma Composition evolved to be more silicic • Mineralizing intrusions during final stages of magmatism Cenozoic Extension Previous Geochronology Figure 3. Seedorff et al. (2019)Superior District (ca.75.2 to 63.5 Ma) • Silver King ca.75.2 to 72 Ma • Magma Vein ca.73.1 to 65.1 Ma • Resolution ca.70.4 to 63.5 Ma • Superior East ca.65 to 63.5 Ma Globe-Miami District (ca.69.8 to 59.9 Ma) • Schultze Pluton (ca.69.8 to 59.9 Ma) • Pinto Valley/ Carlota (ca.64.1 to 63.1 Ma) • Miami-Inspiration (ca.65.3 to 62.0 Ma) Christmas (ca.66.1 to 63.9 Ma) Ray (ca.72.1 to 64.4 Ma) (Hehnke et al., 2012; Seedorff et al., 2019) Samples Superior District -Silver King • 19CH-AZ1A (equigranular quartz diorite stock) • 19CH-AZ1B/D (equigranular monzonite dyke) • 19CH-AZ1*A (grauss) • 19CH-AZ2/FZ (fluvial-sand)Globe-Miami District • 19CH-AZ6 (porphyritic granodiorite) • 19CH-AZ4/FZ (fluvial-sand) • 19CH-AZ7/FZ (fluvial-sand) Christmas • 19CH-AZ9 (porphyritic monzodiorite) • 19CH-AZ9-XMAS (grauss) Ray • 19CH-RAY (porphyritic granite) • 19CH-AZ10-RAY2 (grauss) Geology after Seedorff et al. (2019) Samples Superior District -Silver King • 19CH-AZ1A (equigranular quartz diorite stock) • 19CH-AZ1B/D (equigranular monzonite dyke) • 19CH-AZ1*A (grauss) • 19CH-AZ2/FZ (fluvial-sand) Globe-Miami District • 19CH-AZ6 (porphyritic granodiorite) • 19CH-AZ4/FZ (fluvial-sand) • 19CH-AZ7/FZ (fluvial-sand) Christmas • 19CH-AZ9 (porphyritic monzodiorite) • 19CH-AZ9-XMAS (grauss) Ray • 19CH-RAY (porphyritic granite) • 19CH-AZ10-RAY2 (grauss) Geology after Seedorff et al. (2019) Superior District Samples Superior District -Silver King • 19CH-AZ1A (equigranular quartz diorite stock) • 19CH-AZ1B/D (equigranular monzonite dyke) • 19CH-AZ1*A (grauss) • 19CH-AZ2/FZ (fluvial-sand) Globe-Miami District • 19CH-AZ6 (porphyritic granodiorite) • 19CH-AZ4/FZ (fluvial-sand) • 19CH-AZ7/FZ (fluvial-sand) Christmas • 19CH-AZ9 (porphyritic monzodiorite) • 19CH-AZ9-XMAS (grauss) Ray • 19CH-RAY (porphyritic granite) • 19CH-AZ10-RAY2 (grauss) Geology after Seedorff et al. (2019) Globe-Miami District Samples Superior District -Silver King • 19CH-AZ1A (equigranular quartz diorite stock) • 19CH-AZ1B/D (equigranular monzonite dyke) • 19CH-AZ1*A (grauss) • 19CH-AZ2/FZ (fluvial-sand) Globe-Miami District • 19CH-AZ6 (porphyritic granodiorite) • 19CH-AZ4/FZ (fluvial-sand) • 19CH-AZ7/FZ (fluvial-sand) Christmas • 19CH-AZ9 (porphyritic monzodiorite) • 19CH-AZ9-XMAS (grauss) Ray • 19CH-RAY (porphyritic granite) • 19CH-AZ10-RAY2 (grauss) Geology after Seedorff et al. (2019) Christmas District SamplesSuperior District -Silver KingGeology after Seedorff et al. (2019) Ray District Geochronology -Superior Dist rict Silver King stock Quartz diorite stock 72.6±2.9 Ma • 72.6 ± 2.9 Ma autocrysts (25/25) Monzonite dike 72.0± 2.3 Ma • 72.0± 2.3 Ma autocrysts (4/15) • 77.3± 2.3 Ma antecrysts (5/15) • 1407± 290 Ma xenocrysts (6/15) Silver King Grauss 70.3± 1.8 Ma • 65.72± 5.49 Ma (1/9) • 70.3± 1.8 Ma (7/9) • 77.77± 4.47 Ma (1/9) Fluvial Sand 81.42 to 65.84 Ma • Laramide 81.42 to 65.84 Ma (57/57) 19CH-AZ1B/D Geochronology -Globe-Miami Dist rict (Schult ze plut on) Schultze pluton Porphyritic granodiorite 64.2± 3.1 Ma • 64.2± 3.1 Ma autocrysts (2/16) • 1579± 90 Ma xenocrysts (14/16) NW Pinto Valley Fluvial sand 16.34 to 1604 Ma • Early Miocene 20.30 to 16.34 (34/53) • Laramide 81.0 to 58.84 Ma (10/53) • Proterozoic 1072, 1386, and 1604 Ma (9/53) SE Miami-Inspiration Fluvial sand 18.42 to 1603 Ma • Early Miocene 21.84 to 18.42 (2/56) • Laramide 78.20 to 55.97 (25/56) • Proterozoic 1603± 69 Ma (9/56)Thanks for list ening
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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) | 0.001 | 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".