Victoria carbonate-base metal gold deposit and its significance in the Mankayan mineral district, Luzon, Philippines

被引:24
作者
Sajona, FG
Izawa, E
Motomura, Y
Imai, A
Sakakibara, H
Watanabe, K
机构
[1] Mines & Geosci Bur, Quezon City, Philippines
[2] Kyushu Univ, Dept Earth Resources Engn, Higashi Ku, Fukuoka 8128581, Japan
[3] Kyushu Univ, Dept Earth & Planetary Sci, Higashi Ku, Fukuoka 8128581, Japan
[4] Univ Tokyo, Dept Earth & Planetary Sci, Bunkyo Ku, Tokyo 1130033, Japan
关键词
victoria deposit; carbonate; base metal; gold; epithermal; Lepanto; Mankayan; luzon; Philippines;
D O I
10.1111/j.1751-3928.2002.tb00142.x
中图分类号
P5 [地质学];
学科分类号
0709 ; 081803 ;
摘要
The Victoria gold deposit is a low-sulfidation style epithermal carbonate-base metal gold deposit discovered in 1995 in the Mankayan mineral district, northern Luzon, Philippines. It occurs just south of a high-sulfidation copper-gold orebody (Lepanto enargite deposit) and a porphyry copper-gold orebody (Far Southeast (FSE) deposit). Radiometric dating of the Victoria mineralization yields ages from 1.6 to 1.1 Ma, similar to ages of the Lepanto enargite deposit. Mineralogical, geochemical, fluid inclusion and sulfur isotope studies suggest that the Victoria deposit is not directly related to the late stage of hydrothermal activity that produced the FSE porphyry copper-gold and the Lepanto enargite deposits. The hydrothermal fluids from which Victoria was formed appear to have been derived from the south, and not from the FSE intrusive center to the northeast. This would suggest a regional south to north hydrothermal gradient, consistent with the similar flow within the FSE porphyry-Lepanto enargite system. On a district scale, structures similar to those of the Victoria deposit in trend and nature would be highly prospective, especially if they occur north of identified plutons and volcanic centers.
引用
收藏
页码:315 / 328
页数:14
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