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h5. Eolian Sand, Red Centre, |
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| Eolian deposition in dune and |
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Red Centre, Australia |
| Macro, sphere is 2000 μ |
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Location:
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Curtain Creek, Red Centre, Australia
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Provenance:
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Sedimentary rocks in central Australia (e.g. Ayers Rock, Kata Tjuta, Mount Conner)
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Composition:
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Almost exclusively limpid monocrytalline quartz with FeOx or clay cutanes
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Petrographic thin section:
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| Limpid monocrystalline quartz, |
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Bright field |
| Closeup |
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Texture:
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very well sorted, subrounded, dim surfaces, red fine sand (125 - 160 μm)
Sample number | Collector | Date of sampling |
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heubeck0043 | Dr. Dorothee Mertmann, Universität Halle | 2007 |
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Comments:
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Australia
| !Red_Centre.jpg|thumbnail! | | !Curtain-Creek-makro_1900.jpg|thumbnail! |
| Red Centre, Australia \\
{table-cell:width=30%}
{table-cell} | Macro, sphere is 2000 μ |
| *Location* \\ | Curtain Creek, Red Centre, Australia |
| *Depositional facies* \\ | Eolian deposition in dune and interdune areas |
| *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 |
| *Texture* | Very well sorted, subrounded, dim surfaces, red fine sand (125 - 160 μm) |
h6. Petrographic thin section:
| *Description* | Limpid monocrystalline quartz, red FeOx cutanes |
| _insert here a bright field image_ | | _insert here a dark field image_ |
| Bright field \\
{table-cell:width=30%}
{table-cell} | Dark field |
| *Sample number* | heubeck0043 |
| *Collector* | Dr. Dorothee Mertmann, Universität Halle |
| *Date of sampling* | 2007 |
h6. Comments:
Red colour of quartz grains caused by FeOx cutanes, frequent humidification through periodical rise of ground water
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