The Mysterious Shapes Found at Oregon Coast's Fogarty Beach

Published 11/21/2015 at 2:55 AM PDT
By Oregon Coast Beach Connection staff


(Depoe Bay, Oregon) – Something really weird and astounding lurks beneath the sands of Fogarty Beach, on the central Oregon coast. This popular beach spot is already well known for its freakishly large grains of sand (which can be a bit ouchy in your bare feet) and rocky curiosities. But what lies below them is downright amazing.

These unusual sights show up very rarely: only when sand levels get scoured out by winter storms to extremely low levels. Jagged grooves show when the bedrock here is uncovered. Wild fossils lurk in the rocks (some of which are even viewable when sand levels are more normal). And then there are these objects almost impossible to describe.

As shown in the photo at top, these are the massive grooves in the bedrock of Fogarty Beach, as seen in early 2007. During that winter – and the following one – sand levels got so low that all kinds of things were uncovered.

These have an interesting explanation, according to local experts like Guy DiTorrice, Laura Joki of Lincoln City agate shop Rock Your World, and geologist Jonathan Allan, Ph.D with the Oregon Department of Geology and Mineral Industries.

Both Allan and Joki agreed the bedrock is of the Astoria formation, which is about 15 to 20 million years old. This part of it is mudstone, and the grooves are what geologists term “rills” which have been eroded into this rock.

“This occurs through a variety of approaches, including wave action (oscillatory currents), abrasion (especially when sand levels that periodically cover the platforms fall below 30 cm, the sand begins to act as an abrasive), cavitation (hydraulic effects), and wetting/drying cycles (exposure to sun),” Allan said. “Biological effects can also contribute to some of this.”

In other words, it's a combo of waves digging at it, the sand grinding into it, and changes in how dry or wet the rock is.

Then there's that truly unique object that looks like an egg. Joki and Allan say it's a “concretion,” something built up very slowly over time. Depoe Bay Hotels - Lodging in this area - Where to eat - Map and Virtual Tour

“The light thing sticking out of the darker rock is a concretion, a rock formed around old dead things that died and sunk to the bottom of the ancient ocean,” Joki said. “Sometimes there are fossils in the concretions, sometimes not.”

Allan said concretions form through various chemical reactions.

“Essentially they form by the precipitation of mineral cement within the spaces between particles,” Allan said.

These can be found in sedimentary rock or soil.

Then there is that touch of Jurassic Park at Fogarty, with the fossil of a large scallop called a petcin. It too is around 15 to 20 million years old, Allan and Joki said. They are the ancient relatives of the sea scallops we know today. More of these Fogarty Beach oddities below and at the Depoe Bay Virtual Tour, Map.






More About Depoe Bay Lodging.....

More About Oregon Coast Restaurants, Dining.....

 

A famous little family eatery where the seafood practically gets shuffled from the sea straight into your mouth. Soups and salads include many seafood specialties, including cioppino, chowders, crab Louie and cheese breads. Fish 'n' chips come w/ various fish. Seafood sandwiches with shrimp, tuna or crab, as well as burgers. Dinners like pan fried oysters, fillets of salmon or halibut, saut�ed scallops.
Oregon Coast event or adventure you can't miss
Pacific City, Oregon

 


 


Coastal Spotlight

LATEST Related Oregon Coast Articles

Gemind Meteors Brightest of Year: Will Oregon, Washington Coast See Them?
Portland, Pendleton, Seattle and Eugene and along the beaches it will peak on December 13 and 14. Weather, science, South coast
New Oregon Coast Tradition Lights Up a Lincoln City Dock
The renovated dock at Taft is lit up by a festive display and aglow. Travel tips, kids
Manzanita, Garibaldi, Rockaway Beach, Pacific City: N. Oregon Coast Winter Fun
Manzanita events, Nehalem, Wheeler, Rockaway Beach events, Tillamook events and Pacific City events
Winter Events of Lincoln City: Central Oregon Coast Preview
Glass floats, lots of music, food and theater. Lincoln City events
Depoe Bay Celebrates Filming of One Flew Over the Cuckoo's Nest on Oregon Coast
Oregon Film will commemorate the town's contribution to the quirky flick on December 19. Depoe Bay events
Lincoln City's Whistling Winds - Wacky Oregon Coast History of a Quaint Motel
Like all of Whistling Winds, my room is a gloriously all Earth tones, covered in that fine polished wood that makes it feel like a fancy hotel
Oregon Coast Cyber Monday: Unique Beachy Finds Online
Stay out of the weather: Gifts from the coast to your loved ones, many possibilities you probably didn't know. Travel tips, south coast, wine
Little Log Museum in Yachats Hosts Benefit Concerts: Central Oregon Coast
The concerts to help raise funds toward the rebuilding of the historical and iconic structure. Yachats events

Back to Oregon Coast

Contact Advertise on BeachConnection.net
All Content, unless otherwise attributed, copyright BeachConnection.net Unauthorized use or publication is not permitted

 

 

Oregon Coast Lodging
Rentals
Specials

Dining

Events Calendar

Oregon Coast Weather

Travel News

Search for Oregon Coast Subjects, Articles

Virtual Tours, Maps
Deep Details