The Ore-Forming Process of Washan Porphyrite Iron Deposits in the Ningwu District Associated with Iron Oxide Apatite (IOA) Deposits and Iron Oxide Copper Gold (IOCG) Deposits
Abstract
:1. Introduction
2. Geological Setting
2.1. Regional Geology
2.2. Iron Deposit Geology
3. Sample Selection and Analytical Methods
3.1. Sample Selection and Preparation for Analysis
3.2. EPMA Analysis with Associated SEM Photographing and WDS Mapping
3.3. Temperature Estimations
4. Results
4.1. Magnetite Textures
4.2. Major Elements of Magnetite
4.3. Calculated Crystallization Temperatures of Magnetite
5. Discussion
5.1. A Transitional Mineralizing Process Based on Textural Features of Magnetites from Different Generations
5.2. Evolution of Magnetites from Different Generations
5.2.1. The Thermal Evolution of Magnetites
5.2.2. The Reconstruction of the Ore-Forming Process Based on the Thermal Features of Magnetites
6. Conclusions
- The ore magma-filled-type mineralization, relating to iron-rich high-salinity fluids, is a viable mechanism in the formation of high-Ti magnetites with porphyry genesis within the vein-style ore bodies filling in deep fractures in Washan.
- As temperatures drop, the mineralization evolution processes may split into two paths. The high-salinity fluids, originating from ore magma-filled-type ore bodies, generated medium-Ti magmatic–hydrothermal magnetites of IOA genesis. Decreased-salinity fluids can pass through cracks and react with rocks, causing the precipitation of low-Ti hydrothermal magnetites.
- The crystallization of magnetite from different generations connects the deep ore magma-filled-type mineralization and subaerial iron ores with IOA- and IOCG-like geneses in Washan.
Author Contributions
Funding
Data Availability Statement
Acknowledgments
Conflicts of Interest
References
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Sample | Magnetite Grains | Iron Ore Types | Magnetite Types | SiO2 | TiO2 | Cr2O3 | Al2O3 | ZnO | NiO | Fe2O3 | FeO | MnO | V2O3 | CoO | Na2O | MgO | Total | XMg | T-min | T-max | T-every |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
AS02A | AS02A-MAG-1 | The pyrite-bearing brecciated iron ores from the brecciated zones | AS02A-Type E | 0.03 | 0.14 | 0.01 | 0.18 | 0.03 | 0.04 | 68.25 | 30.91 | 0.08 | 0.22 | 0.08 | 0.01 | 0.03 | 100.00 | 0.00 | 431 | 452 | 441 |
AS02A | AS02A-MAG-2 | The pyrite-bearing brecciated iron ores from the brecciated zones | AS02A-Type E | 0.06 | 0.42 | 0.03 | 0.69 | 0.0050 | 0.01 | 67.18 | 31.22 | 0.04 | 0.19 | 0.05 | 0.05 | 0.06 | 100.00 | 0.00 | 479 | 499 | 489 |
AS02A | AS02A-MAG-3 | The pyrite-bearing brecciated iron ores from the brecciated zones | AS02A-Type E | 0.03 | 0.59 | 0.02 | 0.67 | 0.01 | 0.02 | 66.70 | 31.46 | 0.06 | 0.29 | 0.10 | 0.02 | 0.02 | 100.00 | 0.00 | 412 | 433 | 423 |
AS02A | AS02A-MAG-4 | The pyrite-bearing brecciated iron ores from the brecciated zones | AS02A-Type B | 0.02 | 0.62 | 0.03 | 0.69 | 0.14 | BDL | 66.65 | 31.41 | 0.02 | 0.25 | 0.12 | BDL | 0.05 | 100.00 | 0.00 | 475 | 495 | 485 |
AS02A | AS02A-MAG-5 | The pyrite-bearing brecciated iron ores from the brecciated zones | AS02A-Type B | 0.04 | 0.38 | 0.08 | 0.66 | 0.13 | 0.01 | 67.04 | 31.24 | 0.02 | 0.24 | 0.13 | BDL | 0.03 | 100.00 | 0.00 | 440 | 461 | 451 |
AS02A | AS02A-MAG-6 | The pyrite-bearing brecciated iron ores from the brecciated zones | AS02A-Type B | 0.03 | 0.48 | 0.05 | 0.51 | 0.03 | BDL | 67.09 | 31.36 | 0.01 | 0.28 | 0.13 | 0.02 | 0.01 | 100.00 | 0.00 | 351 | 373 | 362 |
AS02A | AS02A-MAG-7 | The pyrite-bearing brecciated iron ores from the brecciated zones | AS02A-Type B | 0.04 | 0.37 | 0.05 | 0.13 | BDL | 0.07 | 67.74 | 31.16 | 0.04 | 0.23 | 0.12 | BDL | 0.04 | 100.00 | 0.00 | 458 | 478 | 468 |
AS02A | AS02A-MAG-8 | The pyrite-bearing brecciated iron ores from the brecciated zones | AS02A-Type A | 0.03 | 0.42 | 0.04 | 0.47 | 0.06 | BDL | 67.23 | 31.34 | 0.02 | 0.26 | 0.11 | BDL | 0.02 | 100.00 | 0.00 | 417 | 438 | 428 |
AS02A | AS02A-MAG-9 | The pyrite-bearing brecciated iron ores from the brecciated zones | AS02A-Type E | 0.03 | 0.58 | 0.05 | 0.24 | 0.01 | 0.04 | 67.19 | 31.47 | BDL | 0.24 | 0.13 | BDL | 0.01 | 100.00 | 0.00 | 378 | 400 | 389 |
AS02A | AS02A-MAG-11 | The pyrite-bearing brecciated iron ores from the brecciated zones | AS02A-Type B | 0.03 | 0.25 | 0.06 | 0.28 | 0.10 | BDL | 67.77 | 31.11 | BDL | 0.27 | 0.11 | BDL | 0.03 | 100.00 | 0.00 | 435 | 456 | 445 |
AS02A | AS02A-MAG-10 | The pyrite-bearing brecciated iron ores from the brecciated zones | AS02A-Type B | 0.03 | 0.29 | 0.03 | 0.51 | 0.05 | 0.01 | 67.56 | 31.14 | 0.08 | 0.17 | 0.09 | BDL | 0.04 | 100.00 | 0.00 | 458 | 478 | 468 |
AS02A | AS02A-MAG-12 | The pyrite-bearing brecciated iron ores from the brecciated zones | AS02A-Type B | 0.23 | 0.0016 | 0.04 | 0.07 | 0.04 | BDL | 68.07 | 31.06 | 0.06 | 0.25 | 0.14 | BDL | 0.04 | 100.00 | 0.00 | 454 | 475 | 464 |
AS02A | AS02A-MAG-13 | The pyrite-bearing brecciated iron ores from the brecciated zones | AS02A-Type B | 0.02 | 0.13 | 0.07 | 0.03 | BDL | 0.0049 | 68.33 | 31.07 | 0.03 | 0.22 | 0.09 | BDL | BDL | 100.00 | 0.00 | BDL | BDL | BDL |
AS02A | AS02A-MAG-14 | The pyrite-bearing brecciated iron ores from the brecciated zones | AS02A-Type C | 0.08 | 0.56 | 0.05 | 0.26 | 0.16 | 0.07 | 67.12 | 31.28 | BDL | 0.24 | 0.13 | 0.0044 | 0.04 | 100.00 | 0.00 | 463 | 483 | 473 |
AS02A | AS02A-MAG-15 | The pyrite-bearing brecciated iron ores from the brecciated zones | AS02A-Type E | 0.07 | 0.11 | 0.05 | 0.02 | 0.09 | 0.0048 | 68.49 | 30.70 | 0.03 | 0.23 | 0.10 | 0.06 | 0.04 | 100.00 | 0.00 | 448 | 468 | 458 |
AS02A | AS02A-MAG-16 | The pyrite-bearing brecciated iron ores from the brecciated zones | AS02A-Type E | 0.07 | 0.35 | 0.03 | 0.36 | 0.06 | BDL | 71.78 | 25.72 | 0.02 | 0.19 | 0.09 | 1.30 | 0.03 | 100.00 | 0.00 | 433 | 454 | 444 |
AS02A | AS02A-MAG-17 | The pyrite-bearing brecciated iron ores from the brecciated zones | AS02A-Type E | 0.03 | 0.19 | 0.05 | 0.12 | 0.09 | 0.02 | 68.23 | 31.00 | BDL | 0.18 | 0.07 | 0.02 | 0.0009 | 100.00 | 0.00 | 269 | 291 | 280 |
AS02A | AS02A-MAG-18 | The pyrite-bearing brecciated iron ores from the brecciated zones | AS02A-Type B | 0.09 | 0.97 | 0.06 | 0.51 | 0.17 | BDL | 66.22 | 31.55 | 0.03 | 0.23 | 0.07 | 0.06 | 0.04 | 100.00 | 0.00 | 457 | 477 | 467 |
AS02A | AS02A-MAG-19 | The pyrite-bearing brecciated iron ores from the brecciated zones | AS02A-Type A | 0.08 | 0.47 | 0.08 | 0.15 | 0.01 | BDL | 67.54 | 31.20 | 0.03 | 0.25 | 0.12 | 0.04 | 0.04 | 100.00 | 0.00 | 452 | 473 | 462 |
AS02B | AS02B-MAG-1 | The apatite-bearing massive iron ores from the chambered ore body | AS02B-Type C | 0.07 | 0.74 | 0.07 | 0.53 | BDL | 0.01 | 66.51 | 31.58 | 0.13 | 0.21 | 0.04 | BDL | 0.10 | 100.00 | 0.00 | 520 | 538 | 529 |
AS02B | AS02B-MAG-2 | The apatite-bearing massive iron ores from the chambered ore body | AS02B-Type A | 0.09 | 1.31 | 0.05 | 0.58 | 0.05 | 0.08 | 65.35 | 32.08 | 0.09 | 0.18 | 0.07 | BDL | 0.07 | 100.00 | 0.00 | 492 | 511 | 501 |
AS02B | AS02B-MAG-3 | The apatite-bearing massive iron ores from the chambered ore body | AS02B-Type D | 0.06 | 0.41 | 0.11 | 0.43 | BDL | BDL | 67.28 | 31.34 | 0.02 | 0.18 | 0.08 | BDL | 0.08 | 100.00 | 0.00 | 507 | 526 | 517 |
AS02B | AS02B-MAG-4 | The apatite-bearing massive iron ores from the chambered ore body | AS02B-Type C | 0.13 | 0.53 | 0.05 | 0.53 | 0.08 | BDL | 66.99 | 31.06 | 0.09 | 0.18 | 0.17 | 0.04 | 0.15 | 100.00 | 0.00 | 554 | 572 | 563 |
AS02B | AS02B-MAG-5 | The apatite-bearing massive iron ores from the chambered ore body | AS02B-Type A | 0.07 | 0.42 | 0.05 | 0.30 | BDL | BDL | 67.41 | 31.42 | 0.01 | 0.20 | 0.09 | BDL | 0.02 | 100.00 | 0.00 | 417 | 438 | 427 |
AS02B | AS02B-MAG-6 | The apatite-bearing massive iron ores from the chambered ore body | AS02B-Type D | 0.04 | 0.58 | 0.04 | 0.71 | 0.17 | BDL | 66.76 | 31.19 | 0.09 | 0.18 | 0.11 | BDL | 0.13 | 100.00 | 0.00 | 546 | 564 | 555 |
AS02B | AS02B-MAG-7 | The apatite-bearing massive iron ores from the chambered ore body | AS02B-Type A | 0.05 | 1.49 | 0.10 | 0.51 | 0.11 | 0.04 | 65.14 | 32.08 | 0.07 | 0.23 | 0.12 | 0.02 | 0.04 | 100.00 | 0.00 | 455 | 476 | 466 |
AS02B | AS02B-MAG-8 | The apatite-bearing massive iron ores from the chambered ore body | AS02B-Type A | 0.05 | 2.24 | 0.12 | 0.94 | 0.02 | BDL | 63.70 | 31.49 | 0.16 | 0.17 | 0.13 | 0.01 | 0.98 | 100.00 | 0.02 | 755 | 763 | 759 |
AS02B | AS02B-MAG-9 | The apatite-bearing massive iron ores from the chambered ore body | AS02B-Type D | 0.25 | 0.96 | 0.22 | 0.72 | 0.05 | BDL | 65.38 | 31.89 | 0.02 | 0.19 | 0.10 | BDL | 0.21 | 100.00 | 0.00 | 586 | 602 | 594 |
AS02B | AS02B-MAG-10 | The apatite-bearing massive iron ores from the chambered ore body | AS02B-Type A | 0.07 | 1.24 | 0.14 | 0.56 | 0.14 | BDL | 65.42 | 32.08 | 0.03 | 0.21 | 0.06 | BDL | 0.05 | 100.00 | 0.00 | 471 | 492 | 482 |
AS02B | AS02B-MAG-11 | The apatite-bearing massive iron ores from the chambered ore body | AS02B-Type A | 0.18 | 1.27 | 0.06 | 0.63 | 0.08 | BDL | 65.20 | 32.23 | 0.02 | 0.18 | 0.05 | 0.01 | 0.11 | 100.00 | 0.00 | 529 | 548 | 539 |
AS02B | AS02B-MAG-12 | The apatite-bearing massive iron ores from the chambered ore body | AS02B-Type B | 0.06 | 0.98 | 0.05 | 0.49 | 0.0037 | 0.04 | 66.20 | 31.95 | 0.02 | 0.10 | 0.10 | BDL | BDL | 100.00 | 0.00 | BDL | BDL | BDL |
AS02B | AS02B-MAG-13 | The apatite-bearing massive iron ores from the chambered ore body | AS02B-Type A | 0.03 | 1.03 | 0.06 | 0.72 | 0.12 | 0.01 | 65.93 | 31.79 | BDL | 0.18 | 0.07 | 0.03 | 0.04 | 100.00 | 0.00 | 464 | 484 | 474 |
AS02B | AS02B-MAG-14 | The apatite-bearing massive iron ores from the chambered ore body | AS02B-Type B | 0.04 | 0.54 | 0.06 | 0.35 | 0.05 | BDL | 67.26 | 31.38 | 0.05 | 0.16 | 0.09 | 0.02 | 0.01 | 100.00 | 0.00 | 350 | 372 | 361 |
AS02B | AS02B-MAG-15 | The apatite-bearing massive iron ores from the chambered ore body | AS02B-Type C | 0.06 | 0.62 | 0.06 | 0.55 | 0.04 | BDL | 66.81 | 31.31 | 0.08 | 0.23 | 0.11 | 0.01 | 0.13 | 100.00 | 0.00 | 543 | 561 | 552 |
AS02B | AS02B-MAG-16 | The apatite-bearing massive iron ores from the chambered ore body | AS02B-Type D | 0.10 | 0.57 | 0.07 | 0.54 | 0.05 | 0.03 | 66.82 | 31.47 | 0.03 | 0.15 | 0.10 | BDL | 0.07 | 100.00 | 0.00 | 494 | 513 | 503 |
AS02B | AS02B-MAG-17 | The apatite-bearing massive iron ores from the chambered ore body | AS02B-Type E | 0.08 | 0.30 | 0.05 | 0.19 | 0.04 | BDL | 67.76 | 31.23 | BDL | 0.21 | 0.11 | 0.0022 | 0.04 | 100.00 | 0.00 | 452 | 473 | 462 |
AS02B | AS02B-MAG-18 | The apatite-bearing massive iron ores from the chambered ore body | AS02B-Type B | 0.05 | 1.08 | 0.03 | 0.46 | 0.0012 | BDL | 66.04 | 31.79 | 0.17 | 0.21 | 0.10 | 0.01 | 0.07 | 100.00 | 0.00 | 495 | 514 | 505 |
AS02B | AS02B-MAG-19 | The apatite-bearing massive iron ores from the chambered ore body | AS02B-Type E | 0.10 | 0.28 | 0.11 | 0.46 | 0.06 | 0.02 | 67.49 | 31.04 | 0.10 | 0.14 | 0.10 | 0.02 | 0.07 | 100.00 | 0.00 | 497 | 516 | 506 |
AS02B | AS02B-MAG-20 | The apatite-bearing massive iron ores from the chambered ore body | AS02B-Type E | 0.08 | 0.33 | 0.03 | 0.72 | 0.03 | BDL | 67.18 | 31.20 | 0.04 | 0.19 | 0.13 | 0.02 | 0.06 | 100.00 | 0.00 | 487 | 506 | 496 |
AS03B | AS03B-MAG-1 | The coarse iron ores within deep veins | AS03B-Type E | 0.05 | 0.23 | 0.06 | 0.27 | 0.02 | BDL | 68.02 | 30.96 | 0.01 | 0.15 | 0.13 | 0.04 | 0.05 | 100.00 | 0.00 | 467 | 487 | 477 |
AS03B | AS03B-MAG-2 | The coarse iron ores within deep veins | AS03B-Type E | 0.03 | 0.33 | 0.08 | 0.33 | 0.05 | BDL | 67.62 | 31.19 | 0.08 | 0.18 | 0.13 | BDL | BDL | 100.00 | 0.00 | BDL | BDL | BDL |
AS03B | AS03B-MAG-4 | The coarse iron ores within deep veins | AS03B-Type E | 0.08 | 0.07 | 0.06 | 0.06 | 0.06 | BDL | 68.39 | 31.01 | 0.02 | 0.14 | 0.10 | BDL | 0.01 | 100.00 | 0.00 | 393 | 415 | 404 |
AS03B | AS03B-MAG-5 | The coarse iron ores within deep veins | AS03B-Type E | 0.04 | 0.35 | 0.08 | 0.50 | BDL | BDL | 67.37 | 31.07 | 0.09 | 0.25 | 0.11 | BDL | 0.15 | 100.00 | 0.00 | 553 | 571 | 562 |
AS03B | AS03B-MAG-6 | The coarse iron ores within deep veins | AS03B-Type A | 0.03 | 1.03 | 0.06 | 0.66 | BDL | 0.04 | 66.05 | 31.55 | 0.05 | 0.21 | 0.10 | 0.03 | 0.19 | 100.00 | 0.00 | 575 | 592 | 583 |
AS03B | AS03B-MAG-7 | The coarse iron ores within deep veins | AS03B-Type E | 0.08 | 0.47 | 0.07 | 0.46 | 0.07 | BDL | 67.12 | 31.27 | 0.09 | 0.20 | 0.11 | 0.01 | 0.05 | 100.00 | 0.00 | 475 | 495 | 485 |
AS03B | AS03B-MAG-8 | The coarse iron ores within deep veins | AS03B-Type A | 0.06 | 0.96 | 0.03 | 0.60 | 0.12 | BDL | 66.06 | 31.65 | 0.09 | 0.27 | 0.05 | 0.02 | 0.09 | 100.00 | 0.00 | 517 | 536 | 527 |
AS03B | AS03B-MAG-8RM | The coarse iron ores within deep veins | AS03B-Type B | 0.01 | 0.66 | 0.06 | 0.56 | 0.03 | BDL | 66.86 | 31.18 | 0.06 | 0.21 | 0.10 | BDL | 0.27 | 100.00 | 0.01 | 608 | 624 | 616 |
AS03B | AS03B-MAG-9 | The coarse iron ores within deep veins | AS03B-Type A | 0.07 | 1.39 | 0.04 | 0.76 | 0.0037 | BDL | 65.07 | 32.14 | 0.12 | 0.18 | 0.10 | BDL | 0.13 | 100.00 | 0.00 | 541 | 559 | 550 |
AS03B | AS03B-MAG-10 | The coarse iron ores within deep veins | AS03B-Type E | 0.08 | 0.73 | 0.04 | 0.49 | 0.04 | 0.02 | 66.57 | 31.19 | 0.17 | 0.29 | 0.15 | BDL | 0.23 | 100.00 | 0.00 | 592 | 608 | 600 |
AS03B | AS03B-MAG-10RM | The coarse iron ores within deep veins | AS03B-Type A | 0.06 | 1.19 | 0.03 | 0.72 | 0.11 | 0.03 | 65.69 | 31.56 | 0.09 | 0.20 | 0.09 | 0.05 | 0.18 | 100.00 | 0.00 | 572 | 589 | 580 |
AS03B | AS03B-MAG-11 | The coarse iron ores within deep veins | AS03B-Type A | 0.04 | 2.11 | 0.03 | 0.75 | 0.01 | 0.02 | 63.90 | 32.07 | 0.28 | 0.23 | 0.10 | BDL | 0.46 | 100.00 | 0.01 | 665 | 678 | 671 |
AS03B | AS03B-MAG-12 | The coarse iron ores within deep veins | AS03B-Type A | 0.03 | 1.65 | 0.05 | 0.66 | 0.12 | BDL | 64.95 | 31.67 | 0.30 | 0.12 | 0.08 | BDL | 0.37 | 100.00 | 0.01 | 641 | 655 | 648 |
AS03B | AS03B-MAG-15 | The coarse iron ores within deep veins | AS03B-Type A | 0.02 | 1.30 | 0.03 | 0.65 | 0.01 | BDL | 65.57 | 31.47 | 0.22 | 0.24 | 0.12 | BDL | 0.37 | 100.00 | 0.01 | 640 | 654 | 647 |
AS03B | AS03B-MAG-16 | The coarse iron ores within deep veins | AS03B-Type D | 0.03 | 0.29 | 0.0038 | 0.72 | 0.02 | BDL | 67.35 | 31.02 | 0.06 | 0.23 | 0.14 | 0.01 | 0.13 | 100.00 | 0.00 | 541 | 559 | 550 |
AS03B | AS03B-MAG-17 | The coarse iron ores within deep veins | AS03B-Type C | 0.04 | 0.80 | 0.04 | 0.58 | 0.07 | BDL | 66.47 | 31.59 | 0.05 | 0.17 | 0.12 | BDL | 0.07 | 100.00 | 0.00 | 493 | 512 | 503 |
AS03B | AS03B-MAG-19 | The coarse iron ores within deep veins | AS03B-Type A | 0.06 | 1.02 | 0.08 | 0.57 | BDL | 0.03 | 66.02 | 31.53 | 0.11 | 0.22 | 0.17 | 0.02 | 0.16 | 100.00 | 0.00 | 562 | 579 | 570 |
AS03B | AS03B-MAG-20(18rm) | The coarse iron ores within deep veins | AS03B-Type B | 0.16 | 0.65 | 0.11 | 0.19 | 0.05 | BDL | 66.92 | 31.54 | 0.08 | 0.12 | 0.12 | BDL | 0.06 | 100.00 | 0.00 | 489 | 509 | 499 |
AS03B | AS03B-MAG-21(18rm) | The coarse iron ores within deep veins | AS03B-Type B | 0.39 | 0.50 | 0.06 | 0.27 | 0.03 | BDL | 66.69 | 31.60 | 0.01 | 0.18 | 0.09 | 0.02 | 0.17 | 100.00 | 0.00 | 564 | 582 | 573 |
AS03B | AS03B-MAG-22(18rm) | The coarse iron ores within deep veins | AS03B-Type B | 0.47 | 0.42 | 0.06 | 0.30 | BDL | BDL | 66.57 | 31.73 | 0.04 | 0.20 | 0.08 | 0.01 | 0.14 | 100.00 | 0.00 | 551 | 569 | 560 |
AS05 | AS05-MAG-1 | The fine-grained massive iron ores | AS05-Type F | 1.86 | 0.24 | 0.17 | 0.10 | 0.05 | 0.01 | 63.89 | 33.30 | 0.26 | 0.10 | BDL | 0.02 | BDL | 100.00 | 0.00 | BDL | BDL | BDL |
AS05 | AS05-MAG-2 | The fine-grained massive iron ores | AS05-Type F | 3.32 | 0.21 | 0.12 | 0.07 | BDL | BDL | 60.74 | 35.31 | 0.11 | 0.07 | BDL | 0.04 | 0.0027 | 100.00 | 0.00 | 313 | 335 | 324 |
AS05 | AS05-MAG-3 | The fine-grained massive iron ores | AS05-Type F | 2.22 | 0.10 | 0.10 | 0.01 | BDL | 0.03 | 63.56 | 33.76 | 0.10 | 0.07 | 0.01 | 0.04 | BDL | 100.00 | 0.00 | BDL | BDL | BDL |
AS05 | AS05-MAG-4 | The fine-grained massive iron ores | AS05-Type F | 0.32 | 0.20 | 0.09 | BDL | 0.04 | BDL | 67.77 | 31.40 | 0.03 | 0.08 | 0.01 | 0.04 | BDL | 100.00 | 0.00 | BDL | BDL | BDL |
AS05 | AS05-MAG-5 | The fine-grained massive iron ores | AS05-Type F | 2.24 | 0.25 | 0.10 | 0.11 | BDL | BDL | 62.94 | 33.46 | 0.74 | 0.12 | 0.02 | BDL | 0.01 | 100.00 | 0.00 | 374 | 396 | 385 |
AS05 | AS05-MAG-6 | The fine-grained massive iron ores | AS05-Type F | 1.97 | 0.25 | 0.06 | 0.25 | 0.06 | 0.04 | 63.53 | 33.63 | 0.08 | 0.10 | BDL | 0.02 | BDL | 100.00 | 0.00 | BDL | BDL | BDL |
AS05 | AS05-MAG-7 | The fine-grained massive iron ores | AS05-Type F | 2.52 | 0.21 | 0.07 | 0.20 | BDL | BDL | 62.41 | 34.26 | 0.18 | 0.10 | BDL | 0.03 | 0.03 | 100.00 | 0.00 | 434 | 454 | 444 |
AS05 | AS05-MAG-8 | The fine-grained massive iron ores | AS05-Type F | 4.55 | 0.26 | 0.09 | 0.14 | 0.03 | BDL | 57.63 | 37.12 | 0.09 | 0.08 | BDL | 0.01 | BDL | 100.00 | 0.00 | BDL | BDL | BDL |
AS05 | AS05-MAG-9 | The fine-grained massive iron ores | AS05-Type F | 0.19 | 0.10 | 0.04 | 0.01 | BDL | BDL | 68.34 | 31.13 | 0.05 | 0.07 | BDL | 0.04 | 0.01 | 100.00 | 0.00 | 386 | 408 | 397 |
AS05 | AS05-MAG-10 | The fine-grained massive iron ores | AS05-Type F | 2.31 | 0.27 | 0.04 | 0.16 | BDL | BDL | 62.79 | 33.68 | 0.56 | 0.14 | 0.01 | 0.02 | 0.01 | 100.00 | 0.00 | 387 | 409 | 398 |
AS05 | AS05-MAG-11 | The fine-grained massive iron ores | AS05-Type F | 3.13 | 0.25 | 0.09 | 0.17 | BDL | BDL | 60.92 | 35.11 | 0.21 | 0.08 | BDL | 0.02 | 0.0009 | 100.00 | 0.00 | 269 | 292 | 280 |
AS05 | AS05-MAG-12 | The fine-grained massive iron ores | AS05-Type F | 6.98 | 0.20 | 0.08 | 0.23 | BDL | BDL | 52.18 | 38.76 | 1.40 | 0.07 | BDL | 0.06 | 0.04 | 100.00 | 0.00 | 454 | 475 | 465 |
AS05 | AS05-MAG-13 | The fine-grained massive iron ores | AS05-Type F | 1.14 | 0.19 | 0.24 | 0.01 | 0.05 | BDL | 65.57 | 32.59 | 0.05 | 0.14 | BDL | 0.01 | BDL | 100.00 | 0.00 | BDL | BDL | BDL |
AS05 | AS05-MAG-14 | The fine-grained massive iron ores | AS05-Type F | 5.47 | 0.27 | 0.06 | 0.21 | 0.03 | BDL | 55.49 | 37.96 | 0.29 | 0.11 | 0.05 | 0.05 | 0.01 | 100.00 | 0.00 | 389 | 411 | 400 |
AS05 | AS05-MAG-15 | The fine-grained massive iron ores | AS05-Type F | 1.65 | 0.33 | 0.12 | 0.24 | BDL | BDL | 64.09 | 33.38 | 0.07 | 0.08 | 0.01 | 0.02 | 0.01 | 100.00 | 0.00 | 344 | 366 | 355 |
AS05 | AS05-MAG-16 | The fine-grained massive iron ores | AS05-Type F | 4.17 | 0.30 | 0.09 | 0.18 | BDL | 0.04 | 58.43 | 35.43 | 1.23 | 0.08 | 0.02 | 0.02 | 0.0027 | 100.00 | 0.00 | 314 | 336 | 325 |
AS05 | AS05-MAG-17 | The fine-grained massive iron ores | AS05-Type F | 6.14 | 0.26 | 0.07 | 0.43 | 0.05 | 0.03 | 53.73 | 37.71 | 1.44 | 0.07 | 0.01 | 0.04 | 0.02 | 100.00 | 0.00 | 423 | 444 | 434 |
AS05 | AS05-MAG-18 | The fine-grained massive iron ores | AS05-Type F | 3.07 | 0.23 | 0.14 | 0.20 | 0.05 | BDL | 61.06 | 35.07 | 0.04 | 0.10 | BDL | 0.04 | BDL | 100.00 | 0.00 | BDL | BDL | BDL |
AS05 | AS05-MAG-19 | The fine-grained massive iron ores | AS05-Type F | 1.20 | 0.23 | 0.20 | 0.15 | BDL | 0.02 | 65.37 | 32.63 | 0.03 | 0.11 | 0.01 | 0.04 | 0.01 | 100.00 | 0.00 | 358 | 380 | 369 |
AS05 | AS05-MAG-20 | The fine-grained massive iron ores | AS05-Type F | 0.18 | 0.16 | 0.10 | 0.07 | 0.07 | 0.01 | 68.09 | 31.07 | 0.10 | 0.10 | 0.0024 | 0.04 | 0.0036 | 100.00 | 0.00 | 324 | 346 | 335 |
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Liu, Z.; Xu, W.; Liu, C.; Huang, D. The Ore-Forming Process of Washan Porphyrite Iron Deposits in the Ningwu District Associated with Iron Oxide Apatite (IOA) Deposits and Iron Oxide Copper Gold (IOCG) Deposits. Minerals 2024, 14, 841. https://doi.org/10.3390/min14080841
Liu Z, Xu W, Liu C, Huang D. The Ore-Forming Process of Washan Porphyrite Iron Deposits in the Ningwu District Associated with Iron Oxide Apatite (IOA) Deposits and Iron Oxide Copper Gold (IOCG) Deposits. Minerals. 2024; 14(8):841. https://doi.org/10.3390/min14080841
Chicago/Turabian StyleLiu, Zhen, Wei Xu, Chunming Liu, and Dezhi Huang. 2024. "The Ore-Forming Process of Washan Porphyrite Iron Deposits in the Ningwu District Associated with Iron Oxide Apatite (IOA) Deposits and Iron Oxide Copper Gold (IOCG) Deposits" Minerals 14, no. 8: 841. https://doi.org/10.3390/min14080841