9/29/17 Report - More Storms Brewing? Importance of Shoreline Changes. Rose Colored Gold. New Blog Poll.

Written by the TreasureGuide for the exclusive use of treasurebeachesreport.blogspot.com.

Source: Weather Channel

What was I just saying?  I think it was something about people giving up too soon.  Anyhow, there is still a lot of weather that might affect.

Take a look at this.

Latest MagicSeaWeed Prediction for the Fort Pierce Area.

Five to eight feet isn't shabby.  It all depends upon how it hits us.  In the next few days I'll be looking at the predicted wind and swells.

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Alberto S. sent me the following message.

I haven't done much detecting lately but continue to read your posts everyday and today I saw your comments about coastal change, I went to the link you provided and looked up Miami Beach which is the closest beach to me at this time and what I saw was impressive as far as the change that has taken place over time, the actual coast line back in 1848 is where you find today's famous Ocean Drive. The other item of interest was the beach around the Ft. Pierce inlet specifically the north side vs the south side shore line, the original shoreline based on this information is actually in front of the year 2000 timeline in the South shore and way up in the parking lot area in the North side. Guess if I go up there I will be digging the parking lot.... :) 

Thank you for sharing this information. 

Thanks for writing Alberto.  I was hoping that people would see the value in that web site.

Here is another example from that USGS web site.

Source: USGS Web Site (See yesterday's post.)

Here is a location on Virginia Key where I used to get lots of U. S. silver coins in very good condition.  Whenever the dunes in front of the building would erode, you could find silver coins eroding out of the dunes. You can see that back in the early 1800s, the shoreline was farther out, then in 1900s it varied frequently.

I wasn't really targeting silver U. S. coins that much, but it was fun and easy when conditions were right and I was passing by.

In locations where the shoreline is moving seaward you'll have less chance of finding old items on the beach and in the shallow water, but when the shoreline recedes at that location, you'll have a better chance of finding older items.  Places where the beach is building, such as north of most of our inlets, many older items will get buried under the accumulating sand.  The building and removal of sand has a lot to do with what beaches will produce older items at any particular time.  

I remember back a few decades ago that the beach north of John Brooks was eroded back to very near the condos.  There was a line of pine trees, which were removed.  Now the sand is out a long way from there even though it has erode a little lately.  

There was also an old concrete foundation exposed at the water line between John Brooks and the condos.   I haven't seen it in quite a while.  I don't know if it was for the submarine observation tower or what, but it was there and was very much exposed at one time.

A beach might look like it is eroding, but the erosion might only be into relatively recently accumulated sand.

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Here is an article that tells how some ancient South American populations that knew how to do gilting and other techniques, actually preferred a more rose-colored gold and removed some of the gold content to get the more copperish look they liked.

Here is the link.

https://www.livescience.com/60535-ancient-colombians-preferred-rose-gold.html

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As you probably noticed, I added a new blog poll.  It will help us determine how much of what was found as a result of Irma, Jose and Maria.  In order to get good information I need your participation.  I hope you will respond to the poll.  There will be other polls after this one.  I can only do so much in the limited poll app provided by blogspot.  Thanks for responding to the poll.

Happy hunting,
TreasureGuide@comcast.net

9/28/17 Report - Lost Gold Wedding Band. USGS Coastal Change Hazards Portal. More Rough Surf.

Written by the TreasureGuide for the exclusive use of treasurebeachesreport.blogspot.com.

Wabasso Beach Historical Shoreline Changes.
Source: https://marine.usgs.gov/coastalchangehazardsportal/

The USGS has an interesting web site that shows historical shoreline changes, including Florida. The snipping I posted above shows the Wabasso area.  If you look at the key and then the map, you'll see that back in the later 1900s the shoreline was farther out than it is today, but also farther out than it was in the mid-1800s.  It hasn't progressed continually in one direction or another, but has come and gone to some extent at various times because of both natural causes and beach renourishment.

Historical Shoreline Changes Around Fort Pierce Inlet
Same source.

There are a lot of interesting things you can find on the coastal hazards portal.  I didn't zoom in so much for the above image, but you can see that north of the inlet the shoreline is now farther out in the 2000s than it was in the mid-1800s, and south of the inlet, the shoreline is farther back in recent years than it was in the mid-1800s.  That is natural. You typically get accretion north of east coast the inlets and erosion south of the inlets because the supply of sand is cut off and that starves the beaches to the south.

If you look at the coast towards the top of the map, you'll see where the old St. Lucie inlet was.

I am showing these examples to highlight what I believe to be a very useful tool.  Here is another example.   The area is just south of Bathtub Beach.

You can see where back in the 1800s the shoreline jutted out.  Now the shoreline is much farther back than it was at that time, but it is more seaward than it was the the 1900s.  That is probably due to beach renourishment.  You can also see the rocks at the present shoreline.

Too bad they don't show us where the beach was in 1715.  That would be very useful.


Here is another example from the coastal change hazards portal.   This one (below) shows the probability of inundation and overwash from Irma.

Areas of Irma Inundation and Overwash.
Souce: USGS coastal change hazards portal.

You'll have to visit the site and take a closer look at this one with the key etc.

Another part of the same site shows that maria affected the South Carolina and North Carolina shoreline the most.

Here is the link if you want to really explore that web site.

https://marine.usgs.gov/coastalchangehazardsportal/

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People are acting like the surf has gone smooth.  It hasn't.  Look at this.

Source: MagicSeaWeed.com

And Sunday the swells are supposed to be more northerly.  Something good could happen yet.

A lot of people got excited when they heard there was going to be a hurricane.  Everybody got ready.  Then a lot of them went out and were disappointed. 

How many times have I said, it doesn't take a hurricane.  I recently posted about the 1984 Thanksgiving storm.  That was no hurricane, but there was a lot of treasure found.  I'm getting the feeling that a lot of people are starting to snooze after all the hurricanes passed by.  That might be a mistake.  There is still a lot of good surf predicted for the next week or two.  If it wasn't for the very high surf we've had lately, the surf that is predicted now would be getting people excited.  I'm just thinking that people might be giving up too soon.
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I got a report from Kevin K.  Here is what he had to say.

I went to Frederick Douglass and John Brooks beaches yesterday to hunt, using my ground-penetrating radar machine and my Bounty Hunter Landstar detector. The surf was, indeed, running 5-8 feet with many breaking on the first reef - wish I’d had a surfboard! As you said in yesterday’s blog, it looked like new sand had been added all the way up to the permanent dune, and I did not get one hit on the metal detector, although a lot of false readings on all-metal mode. Those readings must have been mineralized sand, as the discriminator mode never showed anything. The radar machine did not show any deep targets down to 10 feet, although up near the dunes some areas showed disturbed sand as deep as 5 feet...

Thanks for the report Kevin.

Kevin also lost a gold wedding ring in the process and is hoping it can be found.  Here is how he described that.

Somehow I did manage to lose my gold Claddagh wedding ring probably near the Douglas pavilion or in the parking lot of the street north of the Brooks Beach entrance-so if anyone finds the treasure I left, I’d like it back!

Let me know if you find Kevin's ring,, and I'll hook you up for the return. 

Kevin might also be able to do some ground-penetrating radar for you.  His business is Underground Discovery, LLC.

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That is all for today.

Happy hunting,
TreasureGuide@comcast.net