WalcottQuarry080509

Autor:

Mark A. Wilson (Wilson44691) (Department of Geology, The College of Wooster).

[1]

Credit:

Praca własna

Krótki link:

https://plwiki.pl/b/7c8ea

źródło:

Wikimedia Commons

Wymiary:

3000 x 4000 Pixel (8117382 Bytes)

Opis:

Walcott Quarry of the Burgess Shale (Middle Cambrian), British Columbia. The photo shows the Walcott Quarry Shale Member. The white parallel vertical streaks are remnants of drill holes made during excavations in mid-1990s.

Licencja:

Public domain