Eolian Sand, Red Centre, Australia
|
Eolian deposition in dune and |
|
Red Centre, Australia |
|
Macro, sphere is 2000 μ |
Location:
Curtain Creek, Red Centre, Australia
Provenance:
Sedimentary rocks in central Australia (e.g. Ayers Rock, Kata Tjuta, Mount Conner)
Composition:
Almost exclusively limpid monocrytalline quartz with FeOx or clay cutanes
Petrographic thin section:
|
Limpid monocrystalline quartz, |
|
Bright field |
|
Closeup |
Texture:
very well sorted, subrounded, dim surfaces, red fine sand (125 - 160 μm)
Sample number |
Collector |
Date of sampling |
|---|---|---|
heubeck0043 |
Dr. Dorothee Mertmann, Universität Halle |
2007 |
Comments:
Red colour of quartz grains caused by FeOx cutanes, frequent humidification through periodical rise of ground water
