| Title | Comment | Keywords |
|---|---|---|
| Ridge Basin | 18:37 - 20:06 (01:29) / 2.1 MB | "Cathy Busby-Spera", "sedimentary rock", "clastic sediment", "sedimentary structure", "Ridge Basin", sedimentologist, lake, "fine grained sediment", "thin bed", water, "depositional environment", "river channel", continuity, limestone, microfossil, "fresh water", "mud crack", "ripple mark" |