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The giant Pebble Cu-Au-Mo deposit and surrounding region, southwest Alaska: introduction

Economic Geology

By:
, ,
DOI: 10.2113/​econgeo.108.3.397

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Abstract

The Pebble deposit is located about 320 km southwest of and 27 km northwest of the village of Iliamna in Alaska (Fig. 1A). It is one of the largest porphyry deposits in terms of contained Cu (Fig. 2A) and it has the largest Au endowment of any porphyry deposit in the world (Fig. 2B). The deposit comprises the Pebble West and Pebble East zones that represent two coeval hydrothermal centers within a single system (Lang et al., 2013). Together the measured and indicated resources total 5,942 million metric tons (Mt) at 0.42% Cu, 0.35 g/t Au, and 250 ppm Mo with an inferred resource of 4,835 Mt at 0.24% Cu, 0.26 g/t Au, and 215 ppm Mo. In addition, the deposit contains significant concentrations of Ag, Pd, and Re (Northern Dynasty Minerals, 2011).

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Additional Publication Details

Publication type:
Article
Publication Subtype:
Journal Article
Title:
The giant Pebble Cu-Au-Mo deposit and surrounding region, southwest Alaska: introduction
Series title:
Economic Geology
DOI:
10.2113/​econgeo.108.3.397
Volume
108
Issue:
3
Year Published:
2013
Language:
English
Publisher:
Society of Economic Geologists
Contributing office(s):
Central Mineral and Environmental Resources Science Center
Description:
8 p.
Larger Work Type:
Article
Larger Work Subtype:
Journal Article
Larger Work Title:
Economic Geology
First page:
397
Last page:
404
Country:
United States
State:
Alaska