GeologyRocksflint
Sat, 05/17/2008 - 08:26 — psi
.preview.JPG "Nodular flint bands in Cretateous Upper chalk")
- Location: Seaford, Sussex, UK
- Date Taken (dd-mm-yy): February 2008
Nodular bands of flint in the chalk in Upper Cretaceous chalk.
This work is licensed under a Creative Commons Attribution-No Derivative Works 2.5 License.
Sat, 05/17/2008 - 08:23 — psi
_1.preview.JPG "Tabular Flint Seams")
- Location: Seaford Sussex UK
- Date Taken (dd-mm-yy): February 2008
Tabular flint in chalk.
This work is licensed under a Creative Commons Attribution-No Derivative Works 2.5 License.
Sun, 02/17/2008 - 20:58 — psi
- Location: Seaford, Sussex, UK
- Date Taken (dd-mm-yy): February 2008
Although it may look like a brachiopod this is a sponge. Many flint nodules form around sponges in this Cretaceous chalk. The organic material in the sponge forms a "focal" point for silica to migrate to during diagenesis. The structure of the sponge can be seen close up. This nodule is about 25 mm across.
This work is licensed under a Creative Commons Attribution-No Derivative Works 2.5 License.
