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A method has been developed for the routine determination of four arsenic species (arsenite, arsenate, monomethylarsenic and dimethylarsenic) in natural water, and has been applied to a study of arsenic cycling in open ocean (Atlantic and Southern Ocean) and estuarine (Huon Estuary, Tasmania)…
It is commonly presumed that historic material in Antarctica should be well preserved because of the severe, dry cold. Examination of several historic Antarctic sites, however, reveals that many buildings and artefacts suffer deterioration from humidity.
ODP hole 504B in the eastern Pacific intersected a thick zone of 1-5% sulfide sulfur at the contact between basalts and underlying sheeted dikes.
Layered orthogneisses of the Oygarden Islands preserve evidence for four high-grade deformation events (D1 to D4). Archaean D1 and D2 structures are only patchily preserved due to extensive recrystallization during D3 and D4, which represent effects of the c.1000 Ma Rayner Structural Episode (RSE).
Macquarie Island is an exposure above sea-level of part of the crest of the Macquarie Ridge. The ridge marks the Australia-Pacific plate boundary south of New Zealand…