The southwestern half of Onslow Beach, NC is starved of sand. Using a side-scan sonar, we imaged peat and organic-rich sediment at the seafloor just seaward from where the waves start to break. Offshore from that, Miocene rock is imaged at the seafloor. It is difficult, at least for us, to get a true sense of what the seafloor looks like from these geophysical data (scale, rock type, relief, etc.). To gain perspective, we decided to SCUBA dive and collect a video of the seafloor from the shoreline to about 300 m offshore. Visibility nearshore was very low because that organic-rich mud was eroding and being suspended in the water column. Once we reached about 200 m from shore, visibility improved and we could clearly see rock outcropping at the seafloor (Belgrade Formation). That rock is shown in the video below, taken at a depth of about 7 m (23 feet).
3431 Arendell St.
Morehead City, NC
Lesson plans for middle- and high-school teachers that focus on estuarine fish habitats can be found here.
Lab Musings (mostly)
- RT @RippleEnviro: When you're a #coastal nerd and stop to admire the #aeoliantransport occurring as #HurricaneJose tracked north https://t.… 12:18:18 AM September 20, 2017 from Twitter for iPhone ReplyRetweetFavorite
- @pAyAtencion teaching @unc_masc rivers class. Get outside & learn something with @UNCims @MollyBost https://t.co/CjVphLxWWh 01:59:50 AM September 17, 2017 from Twitter for iPhone in reply to pAyAtencion ReplyRetweetFavorite
- RT @Lhatseri: This video is circulating on Wechat & Weibo, melting permafrost, flowing like lava in #Tibet. https://t.co/lKISKIbvAZ 11:05:27 AM September 10, 2017 from Twitter for iPhone ReplyRetweetFavorite
Let’s share: Our first open-access article published.