Vuggy-Silica-Compilation-textures and occurrences20231018.pdf

Vuggy-Silica-Compilation

1. Private & Confidential
Khvav Project –A Very Large Epithermal SystemKhvav Cambodia

2. High Sulphidation Vuggy Silica - Textural Atlas
This is collection of images of vuggy silica, from various high-
sulphidation systems around the world. These have not been
adequately attributed - If you can identify the source please advise.
Contributions of images and descriptions will be gratefully
appreciated and fully attributed.
John C. Menzies
Continental Copper

3. High-Sulphidation, Vuggy silica Samples
South America
•Casale – Chile
•Caspiche - Chile
•Alturas – Chile
•Salares Norte – Northern Chile
•Veladero – Argentina
•El Indio – Chile
•Atlas – Chile
•Pierina - Peru
High Sulphidation Vuggy Silica - Textural Atlas

4. Yanacocha, Peru
Photo Credit: Mike Porter: http://portergeo.com.au/database/mineinfo.asp?mineid=mn006
High Sulphidation Vuggy Silica - Textural Atlas

5. Casale, Chile
Casale, Chile Photo Credit: Doug Menzies
Bladed Barite
Siliceous Faults, Casale
High Sulphidation Vuggy Silica - Textural Atlas

6. Caspiche, Chile
Caspiche, Chile Photo Credit: Doug Menzies
High Sulphidation Vuggy Silica - Textural Atlas

7. Caspiche, Chile
Photo Credit: Doug Kirwin
Vuggy silica, Caspiche
Au-Cu, Maricunga Chile
High Sulphidation Vuggy Silica - Textural Atlas

8. Alturas -Chile
High Sulphidation Vuggy Silica - Textural Atlas

9. Alturas -Chile
High Sulphidation Vuggy Silica - Textural Atlas

10. Salares Norte
High Sulphidation Vuggy Silica - Textural Atlas

11. Valadero -Argentina
High Sulphidation Vuggy Silica - Textural Atlas
Diatreme breccia with silicification of fine breccia
matrix and vuggy silica alteration of porphyritic
andesite?
Vuggy silica alteration of a lapilli tuff

12. El Indio -Chile
High Sulphidation Vuggy Silica - Textural Atlas
Vuggy silica alteration after a porphyritic intrusive

13. Massive sulphide
with tetrahedrite -
OR.908, Massive
sulphide with
enargite, El Indio,
Chile
High Sulphidation Vuggy Silica - Textural Atlas
El Indio -Chile

14. Atlas -Chile
Atlas gold project Chile
High Sulphidation Vuggy Silica - Textural Atlas

15. Pierina -Peru
Unoxidized pumice-tuff altered by vuggy silica. Vugs (black) record the locations of leached
pumice fragments. Dark areas indicate fine-grained Stage I pyrite intergrown with quartz. Native
sulfur (S) occurs locally in vugs
Rainbow, A et al., The Pierina epithermal Au
-
Ag deposit, Chemical Geology, 2005
High Sulphidation Vuggy Silica - Textural Atlas

16. Argentina & Chile
High Sulphidation Vuggy Silica - Textural Atlas

17. High-Sulphidation, Vuggy silica Samples
Asia - Australia
•Seruyung – Kalimantan, Indonesia
•Lepanto – Luzon, Philippines
•Zijinshan – Fujian, China
•Wafi Golpu – Papua New Guinea
•Peak Hill – Australia
•Khvav – Cambodia
•Miwah – Indonesia
•Tujuh Burkit – Indonesia
•Chinkuashih – Taiwan
•Iwato Arabira - Japan
•Tampakan – Philippines
•Martabe – Sumatra , Indonesia
•Alas - Sumatra, Indonesia
•Bacan Gold Mine, Meluku, Indonesia
High Sulphidation Vuggy Silica - Textural Atlas

18. Bacan Gold Mine, Meluku, Indonesia
Photo Credit: Doug Kirwin
Vuggy silica breccia.
Rounded breccia
clasts and vuggy
silica clasts
High Sulphidation Vuggy Silica - Textural Atlas

19. Bacan Gold Mine, Meluku, Indonesia
Photo Credit: Doug Kirwin
Vuggy silica breccia
High Sulphidation Vuggy Silica - Textural Atlas

20. Seruyung, NE Kalimantan, Indonesia
Photo Credit: Doug Kirwin
Discovery drillhole
DDH SE01 - vuggy
silica diatreme silica
breccia. 1-10 g/t Au
High Sulphidation Vuggy Silica - Textural Atlas

21. Seruyung, NE Kalimantan, Indonesia
Photo Credit: Doug Kirwin
Discovery
drillhole DDH
SE01 - vuggy
silica
diatreme
silica breccia.
1-10 g/t Au
High Sulphidation Vuggy Silica - Textural Atlas

22. Seruyung, NE Kalimantan, Indonesia
Photo Credit: Doug Kirwin
Vuggy silica-
pyrophyllite Au ore,
5g/t Au, Ada Rey
open pit Seruyung
gold mine, NE
Kalimantan,
Indonesia
High Sulphidation Vuggy Silica - Textural Atlas

23. Photo Credit: Doug Kirwin
Gusano textures,
Ada Rey open pit,
Seruyung Au mine,
NE Kalimantan,
Indonesia
Seruyung, NE Kalimantan, Indonesia
High Sulphidation Vuggy Silica - Textural Atlas

24. Photo Credit: Doug Kirwin
Gusano textures,
Ada Rey open pit,
Seruyung Au mine,
NE Kalimantan,
Indonesia
Seruyung, NE Kalimantan, Indonesia
High Sulphidation Vuggy Silica - Textural Atlas

25. Photo Credit: Doug Kirwin
High grade (>10g/t
Au) oxidized vuggy
silica ore, Seruyung
Au mine, NE
Kalimantan,
Indonesia
Seruyung, NE Kalimantan, Indonesia
High Sulphidation Vuggy Silica - Textural Atlas

26. Photo Credit: Doug Kirwin
Massive vuggy silica
diatreme breccia,
Mankayan lithocap,
Lepanto, Philippines
Lepanto, Luzon, Philippines
High Sulphidation Vuggy Silica - Textural Atlas

27. Photo Credit: Doug Kirwin
Vuggy silica-
enargite diatreme
breccia outcrop,
Mankayan lithocap,
Lepanto, Philippines
Lepanto, Luzon, Philippines
High Sulphidation Vuggy Silica - Textural Atlas

28. Photo Credit: Doug Kirwin
Vuggy silica-
enargite diatreme
breccia outcrop,
Mankayan lithocap,
Lepanto, Philippines
Lepanto, Luzon, Philippines
High Sulphidation Vuggy Silica - Textural Atlas

29. Photo Credit: Doug Kirwin
Vuggy silica,
Mankayan lithocap,
Lepanto, Luzon,
Philippines
Lepanto, Luzon, Philippines
High Sulphidation Vuggy Silica - Textural Atlas

30. Photo Credit: Doug Kirwin
Vuggy silica-pyrite-
enargite, Mankayan
lithocap, Lepanto,
Philippines
Lepanto, Luzon, Philippines
High Sulphidation Vuggy Silica - Textural Atlas

31. Photo Credit: Doug Kirwin
Vuggy silica-pyrite-
enargite, Mankayan
lithocap, Lepanto,
Philippines
Lepanto, Luzon, Philippines
High Sulphidation Vuggy Silica - Textural Atlas

32. Photo Credit: Doug Kirwin
Vuggy silica-pyrophyllite enargite-
luzonite Au ore, Mankayan
lithocap, Lepanto, Philippines
Lepanto, Luzon, Philippines
High Sulphidation Vuggy Silica - Textural Atlas

33. Photo Credit: Doug Kirwin
Underground
exposures at the base
of the Zijinshan
lithocap, Fujian, China
Zijinshan Au mine, Fujian, China
White Dickite Veins
Massive Covellite vein
Pink Laminated Alunite vein
Vuggy silica diatreme Breccia

34. Photo Credit: Doug Kirwin
Vuggy silica lithocap, Zijinshan Au
mine, Fujian, China
Zijinshan Au mine, Fujian, China
High Sulphidation Vuggy Silica - Textural Atlas

35. Wafi Golpu PNG
Vuggy Silica with Covellite, Wafi Golpu PNG Photo Credit: Doug Menzies
TheWafigold deposits and the relatedGolpuporphyry copper-gold deposit around 1
km to the north-east, are both parts of a complex hydrothermal system comprising
porphyry, as well as high and low sulphidation Cu-Au mineralisation, often with
overprinting alteration relationships. These deposits fall within the Morobe Goldfield in
Morobe Province, Papua New Guinea, approximately 60 km south-west of the port of
Lae and 70 km NNW of the Hidden Valley project. (#Location: 6° 53'S, 146° 27'E).
The mineralised system is reflected at surface by a zone of disseminated pyrite
surrounding areas of higher gold content within an advanced argillic, quartz-alunite
lithocap. Mineralisation and alteration are associated with a Miocene to Pliocene
intrusive complex whose influence is spread over an area of 9 sq. km, centred on the
Miocene Golpu diorite to dacite porphyry plug and a late stage overprinting diatreme
breccia.
The 800 x 400 m maar-diatreme breccia pipe has steep-dipping margins and comprises
a polymictic milled matrix breccia. Several phases of xenolith bearing Wafi dacite
porphyry intrusions cut the milled matrix breccia about the pipe margins, as possible
endogenous domes. The late-mineral Heking Andesite cuts the dacite porphyry.
Potassic alteration within the concealed Golpu diorite porphyry has been dated at 14 Ma
and is cut by the diatreme breccia, which is inferred to be associated with the later
intrusion event leading to the epithermal gold mineralisation, dated of 13 Ma from alunite
within the high sulphidation alteration
Reserves and resources at the end of August were (Newcrest Mining ASX Release, 29
August, 2012):
• Indicated Resource - 810 Mt @ 0.92% Cu, 0.64 g/t Au, 1.1 g/t Ag;
• Inferred Resource - 190 Mt @ 0.80% Cu, 0.61 g/t Au, 1.0 g/t Ag;
• TOTAL Resource - 1000 Mt @ 0.90% Cu, 0.63 g/t Au, 1.1 g/t Ag;
• Probable Reserve - 450 Mt @ 1.2% Cu, 0.86 g/t Au, 1.4 g/t Ag.
Credit: Port Geoscience
High Sulphidation Vuggy Silica - Textural Atlas

36. Wafi Golpu PNG
Vuggy Silica, Wafi Golpu PNG Photo Credit: Doug Menzies
High Sulphidation Vuggy Silica - Textural Atlas

37. Peak Hill Gold Mine, NSW
Residual silica
–
Peak Hill Gold Mine, NSW Photo Credit: Doug Menzies
High Sulphidation Vuggy Silica - Textural Atlas

38. Private & Confidential
Khvav Project –A Very Large Epithermal SystemKhvav Cambodia
High Sulphidation Vuggy Silica - Textural Atlas

39. Impressive massive and brecciated silica
grading down into multi-phase vuggy silica
at the Cliffs and Hill prospect ~10km apart
within a 150 km
2
advanced argillic alteration
zone Hills prospects
Private & Confidential
Khvav Project –A Very Large Epithermal SystemKhvav Cambodia
High Sulphidation Vuggy Silica - Textural Atlas

40. Private & Confidential
The Cliffs Prospect –A Massive vuggy silica edifice >2 km longKhvav Cambodia
Vuggy silica with secondary silica alteration

41. Khvav Cambodia
Vuggy silica clasts in a diatreme breccia
Vuggy silica breccia with infill of black tourmaline
High Sulphidation Vuggy Silica - Textural Atlas

42. Khvav Cambodia
High Sulphidation Vuggy Silica - Textural Atlas
Vuggy silica breccia at the Cliffs prospect

43. Tujuh Bukit -Indonesia
https://www.flickr.com/photos/160585941@N05/albums/72157705116359054
High Sulphidation Vuggy Silica - Textural Atlas
DDH GTD-08-049 144m at 2.77
g/t Au, 40.92 g/t Ag Vuggy silica

44. Tujuh Bukit -Indonesia
Courtesy
–
Doug Kirwin
Vuggy silica altered
diatreme breccia, 1-2
g/t Au, Pit B
High Sulphidation Vuggy Silica - Textural Atlas

45. Tujuh Bukit -Indonesia
Courtesy
–
Doug Kirwin
Silicified apron facies tuff with some layers preferentially altered with vuggy silica, Pit B East
High Sulphidation Vuggy Silica - Textural Atlas

46. Tujuh Bukit -Indonesia
Courtesy
–
Doug Kirwin
High grade 2-5 g/t Au vuggy silica from Pit A
High Sulphidation Vuggy Silica - Textural Atlas

47. Tujuh Bukit -Indonesia
Courtesy
–
Doug Kirwin
High grade 2-5 g/t Au vuggy silica from Pit A
High Sulphidation Vuggy Silica - Textural Atlas

48. Tujuh Bukit -Indonesia
Courtesy
–
Doug Kirwin
Vuggy Silica with bornite and alunite, Zone A high grade pit
High Sulphidation Vuggy Silica - Textural Atlas

49. Miwah -Indonesia

50. Miwah -Indonesia
High Sulphidation Vuggy Silica - Textural Atlas
Vuggy silica, Main zone,
DDH EMD-003, 11-62m @
4.31g/t Au

51. Miwah -Indonesia
High Sulphidation Vuggy Silica - Textural Atlas
Vuggy silica breccia with sulphides DDH EMD-004, 1.21g/t Au

52. Miwah -Indonesia
Early vuggy silica with heterolithic
relicts of single crystals
Low density and partially oxidized
vuggy silica with grooves partially
filled with goethite.
Mulja, T., Heriawan, M., Supomo, Boby., The Miwah high sulphidation Au
-
Ag Deposit, Ore Geology Reviews, 123, 202
High Sulphidation Vuggy Silica - Textural Atlas

53. Tampakan -Philippines
Vuggy silica
with enargite-
digenite in vugs,
Tampakan Cu-
Au Porphyry,
Cotabato,
Mindanao
High Sulphidation Vuggy Silica - Textural Atlas
Photo Credit: Doug Kirwin

54. Tampakan -Philippines
Vuggy clay-silica altered andesite, Tampakan Cu-Au PCD lithocap
Courtesy – Doug Kirwin
High Sulphidation Vuggy Silica - Textural Atlas

55. Tampakan -Philippines
“Gusano” texture and vuggy-silica textures infilled with digenite and enargite, Tampakan Cu-Au PCD
lithocap
Courtesy – Doug Kirwin
High Sulphidation Vuggy Silica - Textural Atlas

56. Martabe Gold Mines-Sumatra, Indonesia
Vuggy silica, Martabe gold mine, Sumatra
High Sulphidation Vuggy Silica - Textural Atlas
Photo Credit: Doug Kirwin

57. Martabe Gold Mines-Sumatra, Indonesia
Vuggy silica, Martabe gold mine, Sumatra
High Sulphidation Vuggy Silica - Textural Atlas
Photo Credit: Doug Kirwin

58. Martabe Gold Mines-Sumatra, Indonesia
Vuggy silica, Martabe
gold mine, Sumatra
High Sulphidation Vuggy Silica - Textural Atlas
Photo Credit: Doug Kirwin

59. Alas Prospect –Southern Sumatra, Indonesia
Vuggy silica, Alas
gold prospect ,
Sumatra
Courtesy
–
Ned Howard
High Sulphidation Vuggy Silica - Textural Atlas

60. Silica-pyrite -OR.693, Silica-pyrite & Vuggy
silica, Chinkuashih, Taiwan
High Sulphidation Vuggy Silica - Textural Atlas
Chinkuashih, Taiwan

61. Iwato Arabira -Japan
High Sulphidation Vuggy Silica - Textural Atlas

62. Iwato Arabira -Japan
Alunite & jarosite in vuggy silicified volcanics - OR.2706, Alunite & jarosite in vuggy
silicified volcanics, Tambo Wendy, Chile
High Sulphidation Vuggy Silica - Textural Atlas

63. High-Sulphidation, Vuggy silica Samples
Central America - Mexico
•Tenoriba – Mexico
•Cerro Quema – Panama
•La Yaqui, Mulatos District Mexico
High Sulphidation Vuggy Silica - Textural Atlas

64. La Yaqui, MulatosDistrict, Mexico
Vuggy silica-kaolinite-
dickite-alunite altered
dacitic volcanics and
breccias
High Sulphidation Vuggy Silica - Textural Atlas
Photo Credit: Doug Kirwin

65. La Yaqui, MulatosDistrict, Mexico
Vuggy silica-kaolinite-
dickite-alunite altered
dacitic volcanics and
breccias
High Sulphidation Vuggy Silica - Textural Atlas
Photo Credit: Doug Kirwin
NEW

66. Tenoriba, Mexico
Vuggy silica ~10g.t Au, 10g/t Ag
Tenoriba, Mexico. https://mammothresources.ca/projects/tenoriba/
High Sulphidation Vuggy Silica - Textural Atlas

67. Cerro Quema, Azuero Peninsula, Panama
Vuggy silica with pyrite and chalcopyrite mineralization
Perello, J., Garcia, A. and Creaser, R., Porphyry-related high-sulfidation mineralization early in Central American Arc development: Cerro Quema
deposit, Azuero Peninsula, Panama
High Sulphidation Vuggy Silica - Textural Atlas

68. High-Sulphidation, Vuggy silica Samples
North America
•Summitville – Colorado USA
•Goldfields – Nevada USA
•North Island Copper – BC Canada
High Sulphidation Vuggy Silica - Textural Atlas

69. Summitville -USA
High Sulphidation Vuggy Silica - Textural Atlas

70. Goldfield Nevada
High Sulphidation Vuggy Silica - Textural Atlas

71. North Island Copper Project, British Columbia
Vuggy silica
High Sulphidation Vuggy Silica - Textural Atlas

72. High-Sulphidation, Vuggy silica Samples
Europe
•Rosia Montana - Romania
•Recsk – Hungary
•Ceovishte - Serbia
High Sulphidation Vuggy Silica - Textural Atlas

73. Photo Credit: Doug Kirwin
Vuggy silica
diatreme breccia,
Rosia Montana,
Romania
Rosia Montana, Romania
High Sulphidation Vuggy Silica - Textural Atlas

74. Recsk -Hungary
Takacs, A. et. Al Ore Mineralogy and Fluid Inclusion Constraints on the Temporal and Spatial Evolution of a High Sulfidation Epithermal Cu-Au-Ag
Deposit in the Recsk Ore Complex, Hungary, Economic Geology, 2017. https://doi.org/10.5382/econgeo.2017.4517
Sulfide bearing vuggy silica
(Lahóca Hill, R-377 drillhole,
103.9 m)
The dacitic crystal tuff and diatreme breccia complex at Lahóca Hill hosts high-sulfidation epithermal Cu-Au-Ag ore mineralization within vuggy quartz bodies, various
types of hydrothermal and volcanic breccias, and ore-bearing quartz stockwork. The host volcanic units are characterized by advanced argillic alteration, with
kandite clay minerals that enclose irregular-lentoid and dissected vuggy quartz breccia bodies.
High Sulphidation Vuggy Silica - Textural Atlas

75. Ceovishte Serbia
High Sulphidation Vuggy Silica - Textural Atlas