@article{056e26dafc3e49dbb98e459f77004ccb,
title = "Geology and Skarn Cu–Bi–Au Mineralization at Shwe Min Bon Area, Kalaw Township, Southern Shan State, Myanmar",
abstract = "The Shwe Min Bon Cu–Au skarn deposit lies within one of the largest Au–Cu belts in Myanmar. The deposit is situated along the Shan scarp zone, which marks the boundary between the Myanmar central basin to the west and the Shan plateau to the east. The Shwe Min Bon deposit comprises skarn-type metasomatic alteration, and the Cu–Au mineralization occurs along the contact face between the Nwabangyi Dolomite and Shweminbon Formation and the Cretaceous dioritic rocks. The metasomatic process resulted in pro- and retrograde mineral assemblages in exoskarn. Hydrothermal activities in the Shwe Min Bon deposit are classified into prograde, retrograde stage I, and retrograde stage II. The prograde skarn is classified into a proximal garnet skarn with minor clinopyroxene and a distal wollastonite skarn. Chlorite, epidote, and tremolite–actinolite were formed during the retrograde stage I. Cu–Au mineralization mainly occurred in retrograde stage I, which was characterized by moderate temperatures (260–320 °C) and fluid with a moderate salinity (5.0–6.0% NaCl equiv.). Low temperature (180–200 °C) and low salinity (2.0–3.0% NaCl equiv.) were responsible for retrograde stage II. Au mineralization is mainly associated with chalcopyrite and tennantite in retrograde stage I and with tellurobismuthite in retrograde stage II.",
author = "Sint, {Nyein N.} and Kotaro Yonezu and Thomas Tindell and Aye, {May T.} and Htay Win and Akira Imai and Koichiro Watanabe",
note = "Funding Information: This study was financially supported by the Japan International Corporation Agency (JICA) for ASEAN University Network/Southeast Asia Engineering Education Development Network program. We extend our sincere thanks to the Society of Resource Geology for their program of overseas deposits research support. We are also grateful to Geo Asia Co. Ltd. for their encouragement of our studies in the Shwe Min Bon skarn deposit and field work support. We thank senior geologist Aung Kyaw Moe and his members for providing much help in the field work. We also acknowledge the JSPS Core-to-Core Program and Asia-Africa Science Platforms for providing the opportunity to present our research at the Sixth and Seventh Asia–Africa conferences. Special thanks to Prof. Zaw who read an earlier version of the manuscript and provided valuable advice. We also thank the Resource Geology referees for their constructive comments, which greatly improved this manuscript. Funding Information: This study was financially supported by the Japan International Corporation Agency (JICA) for ASEAN University Network/Southeast Asia Engineering Education Development Network program. We extend our sincere thanks to the Society of Resource Geology for their program of overseas deposits research support. We are also grateful to Geo Asia Co. Ltd. for their encouragement of our studies in the Shwe Min Bon skarn deposit and field work support. We thank senior geologist Aung Kyaw Moe and his members for providing much help in the field work. We also acknowledge the JSPS Core-to-Core Program and Publisher Copyright: {\textcopyright} 2018 The Society of Resource Geology",
year = "2019",
month = jan,
doi = "10.1111/rge.12187",
language = "English",
volume = "69",
pages = "85--106",
journal = "Resource Geology",
issn = "1344-1698",
publisher = "Wiley-Blackwell",
number = "1",
}