Seitenhistorie

h5. Volcanic beach sand, Devil's Island, Antarctica

| !devils_island_ant_scen.jpg|thumbnail! | | !Devils_Isl_Antarc_mak.JPG|thumbnail! |
| Devil's Island \\ 
{table-cell:width=30%}
{table-cell} | coarse-grained beach sand |


| *Location* \\ | Beach on Devil's Island, West Antarctica, 63°48'S, 057°17'W ; east of James Ross Island) |
| *Depositional facies* \\ | high-energy shoreline |
| *Provenance* \\ | mafic to intermediary volcanic |
| *Composition* \\ | pyroxene, hornblende, plagioclase, opaque ore minerals |
| *Texture* | oarse-grained (mean ca. 1500 µ), very poorly sorted, rounded |
h6. Petrographic thin section:
| *Description* | Olive-green amphiboles and the black ore minerals are visible in the bright-field image. The translucent minerals in the dark field show the distinct first- and second-order colors and the cleavage of clinopyroxenes |

| !Devils_Isl_ANT_ts_II_sm.jpg|thumbnail! | | !Devils_Isl_ANT_ts_x.JPG|thumbnail! |
| Bright field \\ 
{table-cell:width=30%}
{table-cell} | Dark field |

| *Sample number* | heubeck0069 |
| *Collector* | Dr. Bernd Weber, Potsdam | 
| *Date of sampling* | September 2005 |




h6. Comments:

The composition of this beach sand is remarkable because of the the good preservation and dominace of minerals sensitive to chemical weathering

[Additional data page|geowisssand:0069 Additional data]