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NotificationsNotify me of updates to Ore and Alteration Types of the Gold and Copper Mineralization in the Lascogon Project, Surigao del Norte, Mindanao Island, Philippines pp. 97-106
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Ore and Alteration Types of the Gold and Copper Mineralization in the Lascogon Project, Surigao del Norte, Mindanao Island, Philippines pp. 97-106 $100.00
Authors:  (Jonelle Nikolai Crisostomo, Jeddalyn Parian, Daizo Ishiyama, Redempta Baluda, Sonia Eguia, Jocelyn Galapon, Gerry Comia, Jessie Segura, Maureen Laroco, Noel Oliveros, Victor Maglambayan, Philex Mining Corporation, Pasig City, Philippines, and Department of Earth Science and Technology, Faculty of Engineering and Resource Science, Akita University, Akita, Japan, and others)
Abstract:
Two ore and three alteration types were identified in the Lascogon Project of Philex Gold Philippines, Inc., in Surigao del Norte, Mindanao Island, Philippines. The jasperoid ore is the host to the Carlin-like gold mineralization in the Lascogon and Danao prospects. The ore occurs in a decalcified and silicified horizon, with minor chlorite and goethite, stibnite, pyrite and quartz crystals ranging form cryptocrystalline to botryoidal. The stringer-stockwork type in the Suyoc prospect is hosted in argillized andesitic rocks of the Mabuhay Formation. The primary ore mineral is primarily chalcopyrite with minor amounts of sphalerite. The alteration types identified are propylitic alteration, argillic alteration and silicification. The propylitized basaltic and andesitic flows of the Bacuag Formation bound the jasperoid mineralization in the Lascogon prospect. Stratigraphically, the relationship between propylitized basalts and stringer-stockwork Cu-Au is not as clear but a lateral change can be inferred from jasperoid in the center and stringer-stockwork towards the east. 


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Ore and Alteration Types of the Gold and Copper Mineralization in the Lascogon Project, Surigao del Norte, Mindanao Island, Philippines pp. 97-106