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Shallow drilling of seafloor hydrothermal systems using the BGS rockdrill: Conical seamount (New Ireland fore-arc) and PACMANUS (Eastern Manus Basin), Papua New Guinea

Citation

Petersen, S and Herzig, PM and Kuhn, T and Franz, L and Hannington, MD and Monecke, T and Gemmell, JB, Shallow drilling of seafloor hydrothermal systems using the BGS rockdrill: Conical seamount (New Ireland fore-arc) and PACMANUS (Eastern Manus Basin), Papua New Guinea, Marine Georesources & Geotechnology, 23, (3) pp. 175-193. ISSN 1064-119X (2005) [Refereed Article]

DOI: doi:10.1080/10641190500192185

Abstract

From September to October 2002, shallow drilling, using the submersible (5 m) Rockdrill of the British Geological Survey and the German R/V Sonne revealed critical information on the subsurface nature of two distinct hydrothermal systems in the New Ireland fore-arc and the Manus Basin of Papua New Guinea, Drilling at Conical Seamount significantly extends the known surface extent of the previously discovered vein-style gold mineralization (up to 230 g/t Au) at this site. Drilling the conventional PACMANUS volcanic-hosted massive sulfide deposit recovered complexly textured massive sulfide with spectacular concentrations of gold in several core sections including 0.5 m 28 g/t Au, 0.35 m 30 g/ t Au, and 0.20 m 57 g/t Au. Shallow drilling is a fast and cost efficient method that bridges the gap between surface sampling and deep (ODP) drilling and will become a standard practice in the future study of seafloor hydrothermal systems and massive sulfide deposits. Copyright © Taylor & Francis Inc.

Item Details

Item Type:Refereed Article
Research Division:Earth Sciences
Research Group:Geology
Research Field:Ore Deposit Petrology
Objective Division:Mineral Resources (excl. Energy Resources)
Objective Group:Mineral Exploration
Objective Field:Precious (Noble) Metal Ore Exploration
Author:Gemmell, JB (Professor Bruce Gemmell)
ID Code:39075
Year Published:2005
Web of Science® Times Cited:12
Deposited By:Centre for Ore Deposit Research - CODES CoE
Deposited On:2005-08-01
Last Modified:2006-05-05
Downloads:0

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