 | | Journal (article/letter/editorial) | | Epithermal Au-Ag Deposit, Gosowong Goldfield, Halmahera Island, Indonesia Lindsey V. Clark* and J. Bruce...situated in the Neogene magmatic arc of Halmahera, eastern Indonesia, has an estimated resource of 4.4 million...Au. The deposit, which forms part of the Gosowong Goldfield, is the third and most recently discovered...deposit in the Gosowong Goldfield, after the Gosowong and Toguraci deposits. The Gosowong Goldfield is on the...the eastern side of the northwest arm of Halmahera, which is composed of four superimposed volcanic arcs |  | | Journal (article/letter/editorial) | | Alteration Associated with the Gosowong Epithermal Au-Ag Deposit, Halmahera, Indonesia: Mineralogy, Geochemistry...Abstract The Gosowong epithermal Au-Ag deposit, located on Halmahera Island, eastern Indonesia, has a resource...shoots along a 400-m section of the north-striking, east-dipping Gosowong fault. Alteration is zoned around...propylitic alteration. Prior to the onset of the Gosowong deposit hydrothermal system the host rocks in...assemblage. As hydrothermal fluids progressed up the Gosowong fault, vein-related propylitic (epidote, Fe chlorite |  | | Journal (article/letter/editorial) | | belt in western Asia. Alborz is restricted to the north by the Caspian depression block which is a post-arc...intercontinental volcanic arc connected to subduction to the north along the Zagros suture zone (Zanchi et al., 2006)...Eocene rhyodacite, trachyte, trachy-andesite, andesite, basaltic andesite, olivine–basalt of high-K calc-alkaline...flows. The volcanic rocks comprise of rhyolite, andesite, and trachyte. The pyroclastic units are mainly...lithic tuff, sandy tuff, tuff breccia, trachy-andesite) (Appendix 1, Fig. 1). Volcanic and pyroclastic |  | Mao, Xiancheng, Zhang, Wei, Liu, Zhankun, Ren, Jia, Bayless, Richard C., Deng, Hao (2020) 3D Mineral Prospectivity Modeling for the Low-Sulfidation Epithermal Gold Deposit: A Case Study of the Axi Gold Deposit, Western Tianshan, NW China. Minerals, 10 (3) 233 doi:10.3390/min10030233 | Journal (article/letter/editorial) | | deposits, is sandwiched between the NWW-striking North Yili Basin Fault and South Keguqinshan Mountain...subduction of the North Tianshan Ocean [33,38,39], consists of tuff, basaltic andesite, andesite, dacite, and...basin commonly intrude into the Dahalajunshan andesite, with the early carboniferous age of ca. 357–348...fault F2 displays variable strikes from south to north due to multiple phases of deformation associated...1300 m ◦ , an average thickness of 20 m and from north to south (Figure 1b), 1b), with with dipping dipping |  | | Book (edition) | | BIBLIOGRAPHY OF THE GEOLOGY OF INDONESIA AND SURROUNDING ARE AS Edition 7.1 – 8 June 2020 J.T. VAN GORSEL...GORSEL Bibliography of Indonesia Geology, Ed. 7.1 1 www.vangorselslist.com 6/8/20 LIST OF CONTENTS........................................ 9 I.1. Indonesia Regional Geology................................................. 862 IV. BORNEO (KALIMANTAN & NORTH BORNEO) .............................................................................. 946 IV.3. North Borneo (Sarawak, Sabah, Brunei) ............... |  | Leary, Stephen, Sillitoe, Richard H., Stewart, Peter W., Roa, Karl J., Nicolson, Benjamin E. (2016) Discovery, Geology, and Origin of the Fruta del Norte Epithermal Gold-Silver Deposit, Southeastern Ecuador. Economic Geology, 111 (5) 1043-1072 doi:10.2113/econgeo.111.5.1043 | Journal (article/letter/editorial) | | siliciclastic sedimentary rocks, and, finally, andesite flows, all assigned to the Chapiza Formation....abundant base metal sulfides and the other in the north dominated by manganese- and base metal-poor quartz...progressed, Fruta del Norte and environs farther north were covered by an even wider (400 m) spaced, induced...resistivity-high chargeability anomaly about 2 km north of Bonza-Las Peñas along the projection of the Las...fault zone was extended from the vein-bearing andesite into the conglomerate in order to help define |  | | Journal (article/letter/editorial) | | was indicated for the Kencana Au–Ag deposit, Indonesia, in which mixing was inferred to be particularly...A Middle Miocene marine sequence of dacite and andesite lavas, pyroclastic rocks, and sedimentary rocks...over 2200 m, oriented in a NE–SW direction in the north and N–S direction in the south (Fig. 3). Outcrop...pyroclastic rocks, massive, and autobrecciated andesite lavas, sandy tuff, and mudstone, listed in geochronological...geochronological order (Fig. 4). The andesite lava is generally massive, with autobrecciated lavas observed |  | Sykora, Stephanie, Selley, David, Cooke, David R., Harris, Anthony C. (2018) The Structure and Significance of Anhydrite-Bearing Vein Arrays, Lienetz Orebody, Lihir Gold Deposit, Papua New Guinea. Economic Geology, 113 (1) 237-270 doi:10.5382/econgeo.2018.4550 | Journal (article/letter/editorial) | | to shear veins with low-angle dips (~30°) to the north. Linking these large, low-angle veins are sets of...principal vein array with low-angle dips to the north. Porphyry-stage veins were modified during epithermal...ENE-striking structural grain, evident at both the island scale and the deposit scale, was inherited from...New Guinea: Rinne et al., 2018; Tumpangpitu, Indonesia: Harrison et al., 2018; Maryono et al., 2018)...epithermal-style conditions. Tectonic Setting of Lihir Island Lihir Island is located northeast of New Ireland, Papua |
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