Showing posts with label reading beaches. Show all posts
Showing posts with label reading beaches. Show all posts

Sunday, March 22, 2020

3/22/2020 Report - Beach Dynamics and Beach-Specific Knowledge. Many Beaches Closed.


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

Source: madkeen.com  (See specific link below.)

There are at least two distinct types of beach knowledge.  One is the general ability to read beaches, and the other is knowledge about the unique characteristics of specific beaches.

These days it seems almost everybody talks about "reading a beach."  My first posts on that topic were done back in 2008, although I was reading beaches long before that. 

People have been reading beaches for a long time - well before most of the current generation of detectorists was doing it.  It didn't take treasure hunters long to notice that blackened coins showed up on the beaches after storms.

One thing that is very different today is that a lot more gets published.  You can watch YouTube videos and read blogs and forums.  Those didn't exist back thirty or forty years ago.  Back then detectorists were generally much less talkative.  Some went to great lengths to remain invisible.  Some of the best detectorists hunted at night so they wouldn't be observed.  They weren't about to give anyone else their secrets.  Of course there were always a few who liked to talk, but most remained very tight lipped.  Now people come along, observe what others have been doing, read what others have to say, put it in a book, slap a picture of their face on the cover along with some finds and sell it as their own.

I remember once getting a call from somebody who wanted me to sell me some type of oil investment.  I thought if it was as good as he says, why is he on the phone trying to sell it to me.  According to him, a small investment would quickly become a fortune, so why didn't he just do that.  I feel similarly about people who are trying to sell books filled with information they got from somebody else without giving any credit.  There are all kinds of people in the world.

One thing you must do if you conduct any kind of serious academic or scientific research is give credit to the various sources that you use.   In a research report, you would include a review of the literature.  That includes everything relevant that has been published up to the point of your investigation. The literature review gives a history of the state of knowledge on the subject and gives credit to the people who contributed that knowledge.

If you've been watching the daily Coronavirus task force you'll notice that Dr. Fauci has a very conservative approach that demands good hard research and data.  You'd expect that from a person in his position.  He would naturally have a different attitude and perspective than somebody working alone with people in poor remote regions of the world that have to do what they can with what they have to solve immediate problems.  The press doesn't seem to understand that or much of anything else.

But back to reading beaches - detectorists are not the only people who do it these days.  I just ran across a fishing blog that talks about reading beaches.  It seems that many fishing sites talk about it.

Here is the link to the one I bumped into.

https://blog.madkeen.com.au/how-to-read-a-beach/

I didn't actually read much of it but saw some good illustrations on one post.  At the top of this post is one of those.

To me that seems more like reading the water than reading the beach, but that isn't important, and it is still food information for both shallow water hunters as well as land hunters.  The tides will go out.

You'd think the gutter is a good place to hunt, and it can be, but sometimes it is too shallow and is filled with loose sand and shells.  Even then it can be a good spot to find some types of objects - watches for example.

I still remember the first time I got caught in a rip tide.  At that time I knew nothing about rip tides. I just felt myself getting pulled out.  That was between Hollywood beach and Dania beach.  It was a little scary.

It is helpful to know how the sand is moving.  One thing I used to say a lot is "Follow the sand, but don't catch it."  When the sand moves it ends up in one location, but has left another.  Generally you want to be where the sand was - not where it is.

A sand bar can be moving in or out.  If people have been playing on it, there can be good items on the sand bar.  If the bar is moving towards the shore, things that were dropped earlier can be uncovered.   That is something that applies more often but not exclusively to hunting modern jewelry.

Gutters can be good, but they aren't always good places to hunt.  It depends upon how deeply they are scoured.  You can usually tell in just a second or two.  If the gutter is filled with coarse pieces of shells, it probably isn't very good.  There are a few types of items, however, that will often be found in shallow gutters,  That includes watches.

Rip tides and gutters can create fantastic hunting.   If the loose cover gets cleaned out down to bedrock, it can be a real bonanza until it fills in again.

One mistake I made on more than one occasion is not staying to clean an area like that out before it refilled.  Sometimes those types of spots can last for days, but they can quickly disappear.

What I started out to talk about was the difference between the general skill of reading a beach, and beach-specific knowledge.  If you know the general principles, you can walk onto any beach and use those skills, but it also helps to have a good knowledge of specific beaches.

If you hunt a particular beach enough, you will learn its unique habits.  You will learn where things tend to show up, and under what conditions.  If you hunt a particular beach enough, you will know where the good spots are.  Very seldom will somebody give you that kind of information.  And it takes a while to acquire.

Beaches will change over time though.  I've known some spots that were good for years or even decades, but they eventually changed.

To sum up my main point today, there is a general knowledge beach dynamics that you can apply to any beach, but there is also beach-specific knowledge, which is best acquired by working that beach for months and years.  If you have a good beach and are lucky enough to be able to hunt it enough so that you know it inside and out, you will have a huge advantage over anybody who does  not know it as well.

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Many of the Florida beaches are now closed.  Indian River and Vero beaches will be closed Sunday.  So will the Hobe Sound beaches.

St. Lucie County beaches, I understand, at this point will remain open.  One local official thought it would provide a good outdoor outlet for people, but the situation will be monitored and the decision could be changed.  Safe outdoor activities can provide relief from stress that might otherwise cause some people to go stir-crazy and do something less safe.

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Both Mitch King and Joe D. identified the silver item that looked something like an small but unclosed ring as a girls toe ring.  That seems conclusive.

Thanks guys.

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Don't let the beach closures stop you.  There are still places to hunt.  It might be a good time to try some new types of areas.

Happy hunting,
Treasureguide@comcast.net

Friday, August 2, 2019

8/2/19 Report - Good Way To Check The Beach and Some Things to Look At. Different Slopes.


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


Three Views of Same Beach Area Taken Different Days.
Photos captured from beach cams by Alberto s.

Alberto S. sent me the above images along with the following email message.

… with some time available I went looking around the different beach cams online and a turtle nest on one of the places I checked looked to be partially on the slope so out of curiosity I looked back and found the day it was marked and it was showing the slope way in front and not as close. The image includes the dates I checked and it’s clear the slope changed over time, which seems some erosion has taken place even with conditions not favorable, but I suspect not enough. So in trying to learn about interpretation of beach conditions I was wondering if you could share your thoughts.  Your help is always appreciated. 

In case you can't see the dates very well, the top image is dated May30, 2019; the middle one is dated June 29, 2019; and last, July 29. 2019.   Besides capturing each image, Alberto S. added a red line to highlight the berm.

In each image, you can the turtle nest marker, highlighted by a white box.  The turtle nest provides a reference point for estimating the movement of sand relative to the marked nest.  A stable marker can give you a point of reference for more accurate readings.  It appears that the berm was about the same distance away from the nest at the end of May and June, but in July, the berm is farther west and at the turtle nest.

That is an excellent way to watch beach movement in areas covered by a web cam.  Thanks Alberto!

Movement of the berm definitely tells you something.  If the berm is moving that tells you something, but there is more to it.

The beach can move back when it erodes, going from position 1 to 2, or sand can accumulate and the beach move

Illustration of three possible beach front slopes.


That would be simple enough, and eroding beach would recede and an accumulating beach moves out into the water, but that is too simple.  In the beach web cam images, it does not appear that the beach front changed much in slope or shape, however the slope of the beach can change, and that can be important too.

Three hypothetical beach front slopes.


Lets say that 1 represents the normal or average slope.  Line 2 shows a less steep slope.  The berm moves back, but the foot of the slope is actually farther out into the water.   A steeper slope could have the berm farther out towards the water while the foot of the slope is cut back.

All I'm illustrating here is that while the location of the berm is a decent indicator, there are other factors such as the slope and shape of the slope.  For illustration purposes I drew a perfectly straight slope, but that does not happen in real life either.

Other things being equal, which, as I always say, they never are, from the first illustration, I'd most like to see a beach like slope number 2.  The farther back the better.

From the second illustration, I most like number 3.  The steeper the better, and a foot that is back from the normal water's edge.  However, if the gradual slope cut into the back dunes that could be a good one also.

Of course, there are other factors.  I'll perhaps get into those tomorrow or some other day, but knowing the history of the beach is important too. It can be helpful to know how the beach developed over time.  If the erosion is cutting into newly accumulated sand rather than older layers, for example, it is not likely to produce much of anything old.

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The system shown on yesterday's National Hurricane Service map is giving us some rain but won't do much else.

The system out in the tropical Atlantic is not organized, but has plenty of time to develop.  If it does, it could come our way.

TSource; nhc.noaa.gov


The tides are nice and big but the surf is only about two feet.

Happy hunting,
TreasureGuide@comcast.net

Thursday, February 13, 2014

2/13/14 Report - Treasure Coast Beach Combing, Time Capsule & Reading Beaches 101 (Part III)


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

I'll continue with my Reading Beaches 101 series below after a few other items.  If you haven't read the previous two posts on Reading Beaches you might benefit by doing that before continuing with this post.

This has been a damp and cool winter on the Treasure Coast.  Today the wind is from the West as much of the East Coast gets hit by ice and snow.  Storms and floods continue to hit the UK.

On the Treasure Coast the surf is only around two feet today.  The wind is blowing out.  That has been the way it has been much of 2014. 

Conditions for beach detecting on the Treasure Coast remain poor, but things like fossils, shells and pot shards are still available on some beaches.

Eva S. sent me an email saying, ... I live up here in Cape Canaveral and almost daily drive south to the beaches across Patrick's Air Force Base, the beaches south of Melbourne, Sebastian and Vero Beach.  One of the most productive beaches I've discovered up to now for those who like to collect truly beautiful shells are the beaches across Patricks Base.  I have the most beautiful Murex, Tulips, Olive, whelks...etc  I have also found pottery sherds and very interesting metal pieces.

I found my first piece of porcelain the other day on a beach between Sebastian and Vero Beach-- I was thrilled.  I then found my first ancient huge shark tooth on another beach between Sebastian and Vero.  These are very exciting finds for me. I love beach combing.

I was inspired to finally buy a metal detector.

My first day was a disappointment because I really thought I'd find my first Spanish coin!  I quickly realized how vast the beaches are and how unrealistic my expectations were!  It'll take a long time before I find anything, I'm now sure.


I found my first piece of porcelain the other day on a beach between Sebastian and Vero Beach-- I was thrilled.  I then found my first ancient huge shark tooth on another beach between Sebastian and Vero.  These are very exciting finds for me. I love beach combing.

I was inspired to finally buy a metal detector.

My first day was a disappointment because I really thought I'd find my first Spanish coin!  I quickly realized how vast the beaches are and how unrealistic my expectations were!  It'll take a long time before I find anything, I'm now sure.


Keep at it Eva.  As I've been saying, the beach conditions have been poor lately.  You never know when you'll make your first great find though.  It might be quick or it might take quite a while.

Thanks for sharing!

The price of gold has been making a nice comeback the last few weeks.


Back to beach talk.

The normal movement of wave energy in deep water is circular.  That is why it is not necessary to anchor yourself or fight the waves when water detecting.  (I've discussed that before.)  If you just go with it, the water will move you a little one way, then the other, and then return you to where you were.  That is if the water is deep enough.

Anyhow, as the waves get into more shallow water, they break.  The crest becomes more narrow than the trough and the crest falls in on the trough.  The crest crashes on the beach with good force and moves sand or whatever.   The water slows as it washes up the beach and drops whatever it was pushing.  The water then slowly flows down the slope into the sea leaving sand and other things behind.

When a wave crashes on the beach, even heavy objects can be moved.  In my experiment that I mentioned the other day to see how different lead objects of different weight and shape were moved, I used a bucket of water to simulate a single wave breaking on the beach, and saw that all of the lead objects moved a considerable amount.  That was nothing compared to storm driven waves.

You can see for yourself how the water moves different items differently.  Just the other day I was watching the swash near low tide on a day when there was very little surf.  I could see shells and other things at the edge of the water.  When the water came in, some would move up the beach very quickly, others less quickly, and other didn't move at all.

The less dense items, depending to some extent upon other factors such as shape, moved the most.  The light items up the slope quickly and then back out quickly as the water went back out.  I could pretty much tell what an item was composed of by the way it moved in the swash.  Try it sometime.

Shape did make a difference.  Rounded items easily moved up the beach and then rolled back down just as quickly.  It takes more to move a disk or coin shaped object.

We haven't yet considered cuts.  I've explained how the water creates cuts before.  I've stood there and watched them form.  I've also seen them disappear.  They can disappear very quickly.

Cuts occur only occasionally.  High water does not automatically create cuts.  I saw that for myself after hurricane Andrew in South Florida and saw it along the Treasure Coast when Sandy passed by.  The water got very high on the beach on both occasions but created only a few small cuts, and in many places no cuts at all.

Everybody talks about Nor'easters.  Why is a Nor'easter any different than a Southeaster?

I will discuss that in a future post and also talk more about cuts.


A time capsule buried by Steve Jobs was buried, lost and relocated and dug up.   It is now receiving a lot of attention because a new series of Diggers is about to begin and their first program is about finding Job's time capsule.

I have a hard time calling it a time capsule when it is only 30 years old.

Anyhow, here is more about that.

http://www.geek.com/apple/lost-steve-jobs-time-capsule-found-after-30-years-contains-prized-mouse-1584793/


Thats all for now.
Happy hunting,
TreasureGuide@comcast.net

Wednesday, February 12, 2014

2/12/14 Report - Reading Beaches for Metal Detecting (Part II) and Important New Fossil Discovery


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


Source:
http://www.seafriends.org.nz/oceano/beach.htm

Yesterday I started a series called Reading Beaches 101.  If you didn't read that, you might do that before beginning today.

I won't add all of the details to this discussion for a while.  The basics will be helpful enough.

I also recommend reading the web site that is the source of this diagram.  It only talks about beach building and erosion though.  I'll add details about the movement and distribution of other objects such as coins.




The lines showing the high and low tide change position of course, sometimes dramatically, and the water can get all of the way up to and over the rear dunes at times.  That can reshape the beach, including the fore dunes and everything in front of it.  At times there will be cuts, cliffs and dunes. and then they'll all be smoothed out and replaced again.

In the top part of this diagram it shows how sand is borrowed from the beach and the sand is dragged down into the water and deposited in shallow water.  Notice how the waves break on top of the newly formed bar.

Note also that during the storm sand comes in from deeper water and is dragged into the water from the beach (sometimes I might add).  There are more details that I won't get into now.

I will however mention my personal observation concerning the angle of the water being very important in determining how the sand and other items move.

The important thing here is that not only does sand move, but also according to the force of the water and other factors, other items such as coins also move.  Each type of item, as I explained yesterday, is different in terms of how much force it takes to get it to begin moving and how much force it takes to keep it moving.  Those things, along with other factors, such as the item's shape and weight and how deeply it was buried to begin with, will determine how the item is moved and where it ends up.  These are the forces that create coin lines and holes.

One of the reasons I discourage use of discrimination is that if you are not detecting a variety of different kinds of items, you will not be getting important information that tells you where different kinds of items are being deposited.  If, for example, you are finding thin light pieces of aluminum or whatever, that tells you something important.

A coin hole will normally have items that are more difficult to move  near the center of the hole, for example, lead sinkers, quarters or gold rings.  If you are in an aluminum or zinc penny zone, you are not in the sweet spot, assuming that there is one.  The information provided by the junk you find can help direct you to the sweet spot.

You might remember the experiment that I did to illustrate how the shape of an object as well as the objects weight helps determine how the object will be moved by water.  (See my 8/5/13 post.)

The bottom part of the above diagram shows how the sand that piled up after the storm gets redistributed again.  Some of it goes back up on the beach and some out into deeper water.

On the Treasure Coast right now there is one beach where you can see a large sand bar just off shore that was created not by any significant storm, but by beach renourishment sand washing out into the water.

If I was talking about shallow water hunting I would point out some important details here, but I'm going to stick to beach detecting for now.

I want you to see the news about a new fossil discovery so I'll leave off on my Reading Beaches 101 topic for now.

A historic new discovery of fossils has been made which reveals many that have never been previously seen.  New species are being discovered as well as new details of previously known species.

Here is the link.  If you like fossils, you'll love this.

http://www.rom.on.ca/en/blog/mighty-burgess-shale-fossil-site-discovered-in-kootenay-national-park

I wonder if some or all of those fossils couldn't/shouldn't stay in situ?  Why cut up and remove examples that can be made into casts, photographed, or replicated and documented in various forms be cut out and removed to a remote location.  Is it so some museum or paleontologist can possess them?  I'm sure that some will say so they can be better studied back at the lab, but I don't know how true that is.  Perhaps if they stayed in situ they could be better studied in the future with the new technologies of the future in the location and situation where they were found.   A similar argument about archaeological artifacts is sometimes made.  They say they are better off being protected in situ for study in the future when there are new methods of study.  I suspect that someday these fossils will be able to be viewed using new technologies exactly where they were found while still encased in the rock.  Just raising some questions here applying the logic and ideas that I've heard from academics before.

All of that is entirely different from beach found items which are already dislodged from their context and are undergoing tumbling and the unrelenting destructive forces of nature at the oceans edge.


On the Treasure Coast today the surf is around three feet, which is a touch higher than expected.  The next couple of days expect a slightly calmer surf.  Beach detecting conditions remain poor.

Happy hunting,
TreasureGuide@comcast.net

Friday, January 10, 2014

1/10/14 Report - Pole Ax Head Found in Treasure Coast EO & New Book on Reading Beaches


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


Pole Ax Head
Want to see something really neat?  Here it is.

After a lot of cleaning and removing encrustation, the object finally revealed itself.

It appears to be a pole ax head, quite possibly 18th Century.  It was found along the Treasure Coast.

I received a photo of an EO (encrusted object) like this from one of the reader's of this blog that I posted a while back just after it was found.  .

A lot of people pay little to no attention to EOs.  Many get discriminated out because they contain iron.

EOs can be very frustrating because it is hard to tell what might be hidden inside, and it can take a lot of effort to clean them and find out what they might be, if they are still recognizable.  Very often the object inside is not recognizable anymore.  Sometimes all that remains is a hollow space that can be used as a mold to recreate the shape of the object.

There are areas where EOs tend to collect.  They can often be found when conditions are poor for finding coins.

Pole Ax.
From thePiratesLair.com.

Here is an example of a similar pole ax that I found online.  I believe this one was sold.








A 320 year-old icon of the Virgin Mary and baby was found hidden behind a monastery wall after its presence was revealed to a lady in a dream.

Here is the link for the rest of the story.

http://www.novinite.com/articles/157116/Prophetic+Dream+Leads+to+Discovery+of+Old+Icon+in+Bulgaria


Here is a book on how to read a North Carolina beach.  It isn't about Florida beaches, although they are very similar, and it isn't written primarily for detectorists, but it would still be useful.

You can read a good bit of the book online at this link.

http://coastalcare.org/educate/beach-basics/


There is still some rain today.  There are some closed roads.

The rain did not improve beach detecting conditions.  In fact the beaches look very much like they did a couple of days ago.  The south winds of the past couple of days added sand in some places.


The blog poll is progressing nicely and we'll have the results before long.  Thanks to all participants.

Happy hunting,
TreasureGuide@comcast.net