Other formats

    TEI XML file   ePub eBook file  

Connect

    mail icontwitter iconBlogspot iconrss icon

Victoria University Antarctic Research Expedition Science and Logistics Reports 1977-78: VUWAE 22

2. Mössbauer Spectroscopic Study of Desert Varnish

2. Mössbauer Spectroscopic Study of Desert Varnish

Samples of dolerite, granite, sandstone and quartzite heavily stained with desert varnish were collected from appropriate outcrops in the Depot Nunatak, Kennar, Beacon, Pearse, lower Taylor Valleys, Labyrinth, Upper Wright Valley, and the Olympus range and Lake Vida areas of the Victoria Valley. The prevailing wind direction, and patterns of local snow accumulations, particularly in the Labyrinth, were noted to see if these were of significance to the distributions and nature of desert varnish coatings.

Mössbauer spectroscopy and nuclear microprobe methods will be used to study the iron mineralogy of these coatings to see if the different locations and bedrock types are of significance to their nature and formation.