Science in New Guinea, Volumes 13-14University of Papua New Guinea, 1987 - Agriculture |
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Page 22
A sequential chemical extraction procedure identified three chemical phases labelled as reducible , organic and residual . A large proportion ( 53 % ) of the total iron ( 53.9 mg 8-1 ) was in the reducible phase , probably as amorphous ...
A sequential chemical extraction procedure identified three chemical phases labelled as reducible , organic and residual . A large proportion ( 53 % ) of the total iron ( 53.9 mg 8-1 ) was in the reducible phase , probably as amorphous ...
Page 31
The results of a total trace metal analysis for all sediment phases are included for comparative purposes and demonstrate good ... The reducible phase accounts for over half of this iron ( 53 % ) and consists of exchangeable metal ions ...
The results of a total trace metal analysis for all sediment phases are included for comparative purposes and demonstrate good ... The reducible phase accounts for over half of this iron ( 53 % ) and consists of exchangeable metal ions ...
Page 34
Copper , Zinc and Lead Fractionation Copper ( 72 % ) , zinc ( 77 % ) and lead ( 100 % ) are present mainly in the residual phase . This is common for non - polluted sediments ( Salomons & Forstner , 1980 ) . Most of the remaining copper ...
Copper , Zinc and Lead Fractionation Copper ( 72 % ) , zinc ( 77 % ) and lead ( 100 % ) are present mainly in the residual phase . This is common for non - polluted sediments ( Salomons & Forstner , 1980 ) . Most of the remaining copper ...
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Contents
A classification of seasonal rainfall in Papua New Guinea | 1 |
Fish ulcer disease from the Ok Tedi area of Western Province Papua New Guinea | 15 |
Trace metal fractionation in sediments from Lake Murray Papua New Guinea | 22 |
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activity analysis animals associated Aure Australia authors Basin carbon chemical Chemistry clusters collected common concentrations contained coral covered CRUZ Department depth described determined Discussion distribution environment environmental extraction Family field Figured fish forest Formation fraction freshwater geological given groups highlands important increase indicated INTRODUCTION iron Island Journal known lake Locality lower major marine material mathematics mean measured metals methods noted occur organic Papua New Guinea phase plants Plate possible present Press produced Province rainfall range recorded reefs References region reported Research River samples sand Scarp schools Science sediment sharks showed shown significant space species stations stroke structures surface survey Table temperature trace metals unit University University Library University of Papua values vegetation zone