There are many reasons to collect cores from a beach. One of the most interesting is to look back in time and see what environments used to be where the beach is today. The core is like a time machine, or better yet, a history book. You just have to learn the language geology. The cores we took today tell us that there used to be a saltmarsh where the beach is, because below the beach sand we sampled old marsh plants. Before the saltmarsh, an estuary occupied the area because we sampled gray mud with an oyster reef below the marsh sediment. This stacking pattern of different environments is evidence that sea level has been rising in the area of Onslow Beach, NC. Earth’s history is beneath our feet and collecting cores is one way of exposing it.
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)
- Balloons of Lava Bubble into the Ocean from Seafloor Blisters https://t.co/EnVPnXWLFW about 21 hours ago from Twitter Web Client ReplyRetweetFavorite
- Accounting for Accelerated East Coast Sea Level Rise https://t.co/gKKjGHl9Wy about 21 hours ago from Twitter Web Client ReplyRetweetFavorite
- Of course oyster reefs (hard) impede marsh (soft) erosion, but they also preserve carbon-rich seds @jtridge https://t.co/K1S1zT7G0w 07:09:57 PM June 02, 2017 from Twitter Web Client ReplyRetweetFavorite
Let’s share: Our first open-access article published.