Versionen im Vergleich

Schlüssel

  • Diese Zeile wurde hinzugefügt.
  • Diese Zeile wurde entfernt.
  • Formatierung wurde geändert.
Wiki-Markup
h5. Beach Sand, Sri Lanka

| !0052 - AS_Bentota_sri_lanka_p2923.jpg|thumbnail! | | !Bentota_ Sri_Lanka_mak.JPG|thumbnail! |
| Bentota beach \\
{table-cell:width=30%}
{table-cell} | Garnet sand |

| *Location* \\ | Bentota River area, SW Sri Lanka |
| *Depositional facies* \\ | _replace this with text about the dep facies_ |
| *Provenance* \\ | High grade metamorphic rocks of the south indian craton |
| *Composition* \\ | Transparent pink garnet, metallic black cassiterite, ilmenite, rutile, prismatic-elongate zirconia |
| *Texture* | Medium sand (ca. 400 µ), well to moderately sorted, angular (garnet) to subangular (cassiterite) |
h6. Petrographic thin section:
| *Description* | In the bright field transparent pink garnets with characteristic high relief, opaque cassiterite, ilmenite and rutile. In the dark field the garnets appear black, the few prismatic-elongated zirconia with high relief are transparent |


h6. Petrographic thin section:

| !Bentota BF.jpg|thumbnail! |  | !Bentota_DF.jpg|thumbnail! |
| Bright field \\
{table-cell:width=30%} 
{table-cell} | Dark field |

| *Sample number* | heubeck0052 |
| *Collector* | Hettiavatilu | 
| *Date of sampling* | 1979 |

h6. Comments:

A heavy minerals placer, characteristic for erosion products of high grade metamorphic rocks of S India in tropic climate and under intense chemical weathering

[Additional data page|geowisssand:0052 Additional data]