Tracing the source of sediment and phosphorus into the Great Barrier Reef lagoon
Neodymium and strontium isotopic systematics show that terrestrial phosphorus (P) entering the inner Great Barrier Reef (GBR) is dominated by the transport and dispersal of fine-grained basaltic soils. Soils derived from alkali basalts have high total P (3000-4000 mg/kg) and distinctive143Nd/144Nd isotopic signatures (εNd ∼+3 to +5), while the more common Palaeozoic granitic/metamorphic soils have much lower total P (300-600 mg/kg) and143Nd isotopic signatures ( εNd ∼-8). The nearshore...[Show more]
|Collections||ANU Research Publications|
|Source:||Earth and Planetary Science Letters|
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