Trends of Research in Exploration of Magmatic Sulfide Deposits and Small Intrusions Metallogenic System
Bibliographic record
Abstract
The trends of research in exploration of magmatic sulfide deposits can be seen from the Xi'an International Ni-Cu(PGE) Deposit Symposium 2009 and the achievements of exploration research over the past decade as following: the PGE deposits related to the large-layered intrusions still receive much attention;it is agreed that the Sudbury deposit is unique and worthy of little reference;small intrusion metallogenic system becomes the main stream of the research;the theory of magma plumbing mineralization receives much attention.Bushveld,which is a large-layered intrusion,is taken as an example with brief introduction for the Merensky ore bed,UG-2 ore bed and Platreef ore deposit in the north wing of the contact zone.As there is no large rock mass discovered in China,the exploration of potential PGE deposits hosted in small-and medium-scale layered rock mass should be paid much attention.Except the particular instance of Sudbury deposit,most of the Ni-Cu deposits with economic values discovered all over the world were hosted in the small intrusions as individual metallogenitic system.The system includes metallogenic background,adjacent to deep fault,primary magma,and the digenesis of pilot magma,the mineralization of secondary magma and the segregation in deep-stage chamber,the pulsing penetration-mineralization in terminal magma chamber,etc.The exploration result over the past decade suggests that the type of small intrusion deposit is still the main target of research and exploration in China in the future.The metallogenic mechanism of deep liquation and conduit system of Noril'sk-Talnakh and Voisey's Bay deposits is introduced,and adds the diversity of small intrusions mineralization.However,it is to be answered by the future research and practice whether the ore-host space is an open conduit system or an closed terminal magma chamber.
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How this classification was reachedexpand
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 | 0.000 |
| 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 itClassification
machine, unvalidatedMachine predicted; a candidate call from one teacher head, 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".