High-precision Pb isotope measurements reveal magma recharge as a mechanism for ore deposit formation: Examples from Lihir Island and Conical seamount, Papua New Guinea

2005 ◽  
Vol 219 (1-4) ◽  
pp. 131-148 ◽  
Author(s):  
George D. Kamenov ◽  
Michael R. Perfit ◽  
Ian R. Jonasson ◽  
Paul A. Mueller
Keyword(s):  
Papua New Guinea ◽  
High Precision ◽  
New Guinea ◽  
Pb Isotope ◽  
Deposit Formation ◽  
Ore Deposit ◽  
Magma Recharge ◽  
Conical Seamount ◽  
Isotope Measurements

scholarly journals Magmatic Enclaves and Andesitic Lavas from Mt. Lamington, Papua New Guinea: Implications for Recycling of Earlier-fractionated Minerals through Magma Recharge

2015 ◽  
Vol 56 (11) ◽  
pp. 2223-2256 ◽  
Author(s):  
J. Zhang ◽  
J. P. Davidson ◽  
M. C. S. Humphreys ◽  
C. G. Macpherson ◽  
I. Neill
Keyword(s):  
Papua New Guinea ◽  
New Guinea ◽  
Magma Recharge ◽  
Magmatic Enclaves

Comparison between magmatic activity and gold mineralization at Conical Seamount and Lihir Island, Papua New Guinea

2003 ◽  
Vol 79 (3-4) ◽  
pp. 259-283 ◽  
Author(s):  
D. M�ller ◽  
L. Franz ◽  
S. Petersen ◽  
P. M. Herzig ◽  
M. D. Hannington
Keyword(s):  
Papua New Guinea ◽  
Gold Mineralization ◽  
New Guinea ◽  
Magmatic Activity ◽  
Conical Seamount

Bioaccumulation and biomagnification of mercury in Lake Murray, Papua New Guinea

2001 ◽  
Vol 58 (5) ◽  
pp. 888-897 ◽  
Author(s):  
Karl C Bowles ◽  
Simon C Apte ◽  
William A Maher ◽  
Matthew Kawei ◽  
Ross Smith
Keyword(s):  
Papua New Guinea ◽  
Fish Species ◽  
Total Mercury ◽  
Trophic Position ◽  
New Guinea ◽  
Trophic Levels ◽  
Piscivorous Fish ◽  
Age Related ◽  
Isotope Measurements ◽  
Methylmercury Bioaccumulation

The bioaccumulation of mercury in the food webs incorporating the major piscivorous fish species of Lake Murray, Papua New Guinea, has been characterised. Methylmercury concentrations increased with trophic level and the proportion of total mercury present as methylmercury increased from <1% in plants to 94% in piscivorous fish. Methylmercury bioaccumulation factors (BAFs) were similar to those found in temperate environments, with a typical increase of 1 log unit between planktivore and piscivore trophic levels. The greatest bioaccumulation of methylmercury occurred between seston and the water column (log BAF of 5.36). The bioaccumulation of mercury to levels of regulatory concern by the lake's piscivores was attributable to the biomagnification power of the plankton-based food chain comprising four trophic levels (phytoplankton, zooplankton, planktivore, piscivore) rather than any elevated concentrations of mercury in waters or sediments. The methylmercury concentrations of individual piscivores were positively correlated with both trophic position, as indicated by δ15N measurements, and fish size. Stable-isotope measurements were used to identify fish species where dietary changes occurring with age significantly augmented age-related bioaccumulation of mercury.

Public Health in Papua New Guinea

1989 ◽  
Author(s):  
Donald Denoon ◽  
Kathleen Dugan ◽  
Leslie Marshall
Keyword(s):  
Public Health ◽  
Papua New Guinea ◽  
New Guinea

Papua New Guinea: Searching for a Fit Between Child, Culture, and School

1984 ◽  
Vol 29 (10) ◽  
pp. 786-788
Author(s):  
Patricia M. Greenfield
Keyword(s):  
Papua New Guinea ◽  
New Guinea ◽  
Child Culture
Sign in / Sign up

Export Citation Format

Share Document