Nickel-rich chromian muscovite from the Indus suture ophiolite, NW Pakistan: Implications for emerald genesis and exploration

Geochemical Journal

Volumn 41, Issue 6, 2007, Pages 475-482

  Arif, Mohammad ^a   Moon, Charlie J ^b  

^a UNIVERSITY OF PESHAWAR   (Pakistan)

^b UNIVERSITY OF LEICESTER   (United Kingdom)

Author keywords

Emerald deposits; Indus suture; Nickeliferous chromian muscovite (fuchsite); NW Pakistan

Indexed keywords

EMERALD; HYDROTHERMAL ACTIVITY; HYDROTHERMAL SYSTEM; MUSCOVITE; SUTURE ZONE;

ASIA; EURASIA; PAKISTAN; SOUTH ASIA;

EID: 38549143226     PISSN: 00167002     EISSN: None     Source Type: Journal    
DOI: 10.2343/geochemj.41.475     Document Type: Article

References (22)

1. Arif, M. (2003) Sulphides and sulpharsenides in the emerald-hosting rocks from the Indus suture zone in Swat, NW Pakistan. Schweiz. Mineral. Petrogr. Mitt. 83, 261-271.
2. Arif, M. and Jan, M. Q. (1993) Chemistry of chromite and associated phases from the Shangla ultramfic body in the Indus suture zone of Pakistan. Himalayan Tectonics (Searle, M. P. and Treloar, P. J., eds.), 101-112, Geol. Soc. London Spec. Publ. 74.
3. Arif, M. and Moon, C. J. (1994) Occurrence, chemistry and genesis of the nickel-rich phases in the ultramfic rocks from Swat, northwestern Pakistan. Geol. Bull. Univ. Peshawar 27, 29-41.
4. Arif, M., Fallick, A. E. and Moon, C. J. (1996) The genesis of emeralds and their host rocks from Swat, north-western Pakistan: a stable-isotope investigation. Mineral. Dep. 31, 255-268.
5. Challis, A., Grapes, R. and Palmer, K. (1995) Chromian muscovite, uvarovite and zincian chromite: products of regional metasomatism in Northwest Nelson, New Zealand. Can. Mineral. 33, 1263-1284.
6. Chao, F., Farrow, C. M. and Leake, B. E. (1986) Polydemite and chrome-rich fuchsite in virginite from Baie Verte, Newfoundland. Mineral. Mag. 50, 723-724.
7. Deer, W. A., Howie, R. A. and Zussman, J. (1992) An Introduction to the Rock-Forming Minerals, Vol. II. Longman, 696 pp.
8. Hammarstrom, J. M. (1989) Mineral chemistry of emeralds and some associated minerals from Pakistan and Afghanistan: an electron microprobe study. Emeralds of Pakistan (Kazmi, A. H. and Snee, L. W., eds.), 125-150, Springer-Verlag.
9. Kazmi, A. H., Lawrence, R. D., Dawood, H., Snee, L. W. and Hussain, S. S. (1984) Geology of the Indus suture zone in the Mingora-Shangla area of Swat. Geol. Bull. Univ. Peshawar 17, 127-144.
10. Kazmi, A. H., Lawrence, R. D., Anwar, J., Snee, L. W. and Hussain, S. S. (1986) Mingora emerald deposits (Pakistan): suture associated mineralization. Econ. Geol. 81, 2022-2028.
11. Kerrich, R., Fyfe, W. S., Barnett, R. L., Blair, B. B. and Willmore, L. M. (1987) Corundum, Cr-muscovite rocks at O'Briens, Zimbabwe: the conjunction of hydrothermal desilification and LIL-element enrichment-geochemical and isotopic evidence. Contrib. Mineral. Petrol. 95, 481-498.
12. Kerrich, R., Fyfe, W. S., Barnett, R. L., Blair, B. B. and Willmore, L. M. (1988) Reply to: "A discussion of corundum, Cr-muscovite rocks at O'Briens, Zimbabwe: the conjunction of hydrothermal desilification and LIL-element enrichment-geochemical and isotopic evidence". Contrib. Mineral. Petrol. 100, 555-559.
13. Lawrence, R. D., Kazmi, A. H. and Snee, L. W. (1989) Geological setting of the emerald deposits. Emeralds of Pakistan (Kazmi, A. H. and Snee, L. W., eds.), 13-38, Springer-Verlag.
14. Martin-Ramos, J. D. and Rodriguez-Gallego, M. (1982) Chromium mica from Sierra Nevada, Spain. Mineral. Mag. 46, 269-272.
15. Pan, Y. and Fleet, M. E. (1991) Barian feldspar and barian-chromian muscovite from the Hemlo area, Ontario. Can. Mineral. 29, 481-498
16. Raase, P., Raith, M., Ackermand, D., Viswanatha, M. N. and Lal, R. K. (1983) Mineralogy of the chromiferous quartzites from South India. J. Geol. Soc. India 24, 502-521.
17. Schreyer, W. (1988) A discussion of: "Corundum, Cr-muscovite rocks at O'Briens, Zimbabwe: the conjunction of hydrothermal desilification and LIL-element enrichment - geochemical and isotopic evidence" by Kerrich et al. Contrib. Mineral. Petrol. 100, 552-554.
18. Schreyer, W., Werding, G. and Abraham, K. (1981) Corundum-fuchsite rocks in greenstone belts of southern Africa: petrology, geochemistry and possible origin. J. Petrol. 22, 191-231
19. Treloar, P. J. (1987a) Chromian muscovites and epidotes from Outokumpu, Finland. Mineral. Mag. 51, 593-599.
20. Treloar, P. J. (1987b) The Cr-minerals of Outokumpu - their chemistry and significance. J. Petrol. 28, 867-886
21. Treloar, P. J., Rex, D. C., Guise, P. G., Coward, M. P., Searle, M. P., Windley, B. F., Petterson, M. G., Jan, M. Q. and Luff, I. A. (1989) K-Ar and Ar-Ar geochronolgy of the Himalayan collision in NW Pakistan: constraints on the timing of suturing, deformation, metamorphism and uplift. Tectonics 8, 881-909.
22. Trommsdorff, V. and Evans, B. W. (1974) Alpine metamorphism of peridotitic rocks. Schweiz. Mineral. Petrogr. Mitt. 54, 333-352.