Jump to content
Steve Herschbach

Light Detection And Ranging (LiDAR)

Recommended Posts

Clay, thanks for taking the time to explain some of the limitations of LIDAR in easily understood language.

Share this post


Link to post
Share on other sites

I can't say of this is Lidar and if so at what resolution - mainly because I'm too lazy to do all the work necessary to look up all the stuff I would need to to find the answers to all that.

Having said that, I'm posting an image from a detecting group I belong to in Denmark. This apparently is in an area which was submerged in a giant inundation caused by cyclonic storms hitting the low coast of Denmark in the 1400s.

My pals will be out there detecting soon!

post-3-0-83676600-1418423431_thumb.jpg

Share this post


Link to post
Share on other sites

Hello everyone, I'm new on the forum. I am Spanish, sorry for my bad English.

Thanks for this great forum, I am learning a lot.

Tengo un makro gold racer. He visto este hilo sobre el oro y los romanos en España.
Solo en mi región (norte de España, Asturias) los romanos tenían más de 460 depósitos de oro, algunos muy pequeños y otros enormes, en la actualidad hay 2 minas de oro en operación y otras 2 en estudios de apertura.

Solo he estado con mi piloto de oro durante 2 meses, y no he encontrado oro, algunas personas si encuentran una batea en los ríos.

Aquí nadie busca oro con detector, creo que el problema principal es demasiada vegetación y montañas muy verticales.

Estoy estudiando mucho el área.

Espero la visita de buscadores experimentados jaja, adjunto algunas fotos de sitios romanos donde todavía hay oro y algunas empresas quieren explotar.

1300142856723.jpg

2018-02-04 (1).png

oro-asturiano.jpg

roman mine.jpg

EMO-Presentacion_Nueva-ES_v2_ic1.pdf

Share this post


Link to post
Share on other sites

Have been reading about the newly discovered Mayan city found with LiDAR in Guatemala. A pretty incredible find in the middle of a jungle area completely missed by archeologists. LiDAR surely will open up a lot of interesting areas of discovery.  

An interesting explaination of LiDAR: 

 

also, although this is England, it shows how LiDAR has a direct application to detecting.

 

Share this post


Link to post
Share on other sites

Wow....that is amazing. Boy....do I have a use for that in helping me find from the air through forest cover clues, signs, for a stash of stolen & hidden "pirate" treasure here in NZ. The "pirates" never got back to it. This was before the gold rushes in NZ. Believed to be stolen gold from the Victorian gold rush in Australia that was bound for England. Do a google search on the Madagascar Ship. Better still....here you go. http://www.illawarramercury.com.au/story/2271487/in-search-of-the-madagascar-frigates-treasure/

The forest & bush is the hindrance.

JW :smile:

Share this post


Link to post
Share on other sites

LIDAR has come a long way since I worked with it in Alaska. I helped build and operate a LIDAR facility while working for the University of California at their remote research site in Fairbanks. Our area of research was ionospheric, we studied the Ionosphere gases for clues to what causes The Northern Lights. We did some ground penetrating work, but it was very limited due to lack of remote receiving sites around the world. Here are some pictures of the LIDAR building in operation and the telescope and laser. The laser light is yellow, which is the color of Sodium. We were studying Sodium at 90 km altitude.

lidar1.jpg.f763c8066ac02abb5b24b87b8b261915.jpg 

The sky is light in this pic because the pic was taken with a long exposure time.

 

 

 

mirror.jpg.9f0e8e935fb70e1cb00de623555389d6.jpg

This rotating parabolic dish holds 450 lbs of liquid Mercury. It is used as a telescope because there is no distortion like we get in a glass mirror. The dish is 9 feet in diameter.

  • Like 6

Share this post


Link to post
Share on other sites

I use LIDAR all the time here in Virginia to be able to see all the old mine sites.  It gives you the ability to see where the old timers were focusing their workings.  That way you can focus on specific areas once you get out in the field.  Lets you maximize your time in the field.   

 

I can make them using the available data online for most the east coast and parts of the west including the Lake Tahoe area of California.  It looks like lots more will become available to the public over the next few years.  It just the matter of finding all the data and having/knowing how to use the right programs to turn it into something useful.  Capture.thumb.PNG.40c4ce617c5c30e085c3ff91365ef944.PNG

 

It is a fantastic tool that all prospectors should use.  I've found a few undocumented gold mines/prospects in my area using it.  

  • Like 3

Share this post


Link to post
Share on other sites
5 minutes ago, PG-Prospecting said:

I use LIDAR all the time here in Virginia to be able to see all the old mine sites.  It gives you the ability to see where the old timers were focusing their workings.  That way you can focus on specific areas once you get out in the field.  Lets you maximize your time in the field.   

 

I can make them using the available data online for most the east coast and parts of the west including the Lake Tahoe area of California.  It looks like lots more will become available to the public over the next few years.  It just the matter of finding all the data and having/knowing how to use the right programs to turn it into something useful.  Capture.thumb.PNG.40c4ce617c5c30e085c3ff91365ef944.PNG

 

It is a fantastic tool that all prospectors should use.  I've found a few undocumented gold mines/prospects in my area using it.  

I use Lidar alot here in the UK for when i do research on a new permission,its improving all the time,provides a fantastic amount of additional information on activity on older sites,another additional tool that i have also experimented with is a quad copter,anything that gives you some extra help on a site is always welcome.

Share this post


Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now

  • Similar Content

    • By Steve Herschbach
      The Minelab Equinox Series "From Beginner to Advanced" by Clive Clynick is the first book available about the new Minelab Equinox metal detectors. The 8.5" x 5.5" format book is 111 pages of densely packed information that is intended to help new Minelab Equinox owners get the best out of their new detectors.
      The early part of the book relies of screen shots to illustrate the various controls on the detector, and then switches to hand drawn pictures to illustrate various concepts described in the book. In this day and age of slick graphics the hand drawn images lend a "homemade" feeling to these books. That is indeed probably the case since the book is in the "fold and staple spine" format favored by those printing books at home.
      I can't really fault Clive for using the hand drawn images however. A picture does often easily get across some idea that might be very difficult to describe in writing. I personally can sketch out a useful image quite easily, but turning that sketch onto a slick computer generated diagram can be time consuming. In the end the hand drawn sketches get the idea across, and that is what matters most.

      The first roughly 40 pages of the book basically go over the controls, adding some details not found in the owner's' manual. The real meat is in the last 70 pages of the book. Clive goes into great detail emphasizing important details about the Minelab Equinox meter and audio characteristics. There is a lot of information here about how to use the Equinox features along with good handling skills to get the best performance possible out of the Equinox.
      The book has an emphasis on coin and jewelry detecting both on dry land and beach. I therefore think the book will be of most use to people looking for information more specific to these subjects. Information specific to relic detecting or nugget hunting in particular is more in passing while discussing coin and jewelry detecting.
      Much of the information presented does assume basic detecting knowledge along with basic knowledge from the Equinox owner's manual. Clive tries to avoid repeating information already found in the owner's manual, and so from this perspective I would rate this book as being applicable for detectorists with moderate to advanced detecting skills. People who are totally new to detecting may feel in a bit over their heads initially. That is fine because any detecting book worth having usually needs more than one reading. Things that do not sink in at first make more sense after getting some hours of experience before they "click".
      The book may be challenging for true beginners on the first go, but that is because there is meat here to satisfy more advanced operators. Anyone that perseveres with fully understanding the information in this book will no longer be a beginner, and the good thing is the skills learned will apply to many other high performance metal detectors. The bottom line is I recommend this book for people looking for information that goes far beyond what is offered in the Equinox Owner's Manual, and which is of primary interest to coin and jewelry hunters.
      Clive is an accomplished writer with several titles to his credit that qualify as "classics", especially as regards jewelry detecting. Visit his website at http://www.clivesgoldpage.com/ to see all the titles he currently has available.

    • By ed 1
      Hi, know that this is not Minbelab specific but what is the most informative/interesting  magazine for me to order 
    • By Andy2640
      And so my research led me to LIDAR (Light Detection and Ranging) in the UK.  Its incredible!    Some sites are just reworked modern changes, but roman/medieval furrows are unmistakable, so are forts, mounds and village earthworks.
      Currently im scanning the landscape all around my area (within a 15 mile range at the moment).   
      That's why i'm loving this hobby, because its not all about the cool detectors, the kit, the fun, the challenge and the exercise, but also much more about deep research, which involves a lot of thinking, and true history we can touch.  Its got a lot going for it that's for sure!  But i'm preaching to the converted i suppose 😉 
      The hobby has it all! and LIDAR is just one more tool in the research arsenal.  For other noobs like me, give it a try, its an excellent resource.
      Happy detecting,
      Andy.
    • By afreakofnature
      Last week I responded to a topic on Jim Straight's bibliography and got thinking that I would like to ask everyone out there what there favorite "Advanced" books are.  I am not talking about the book that tells you to keep your coil level and low, or dig here books.  Books that give methods, techniques, or other tips that you don't really know about until you go out and learn them on your own.  (An example for me would be that I never really knew about raking an area and removing a layer of dirt to get even deeper, but after reading that it completely makes sense.)  Other books that would be good are geology, geomorphology and hyrdogeology for "detectable nuggets."  Sure we can use USGS and State GeoSurveys to find areas that have gold, but a lot of gold out there is fine and undetectable, I want books (pubs) on the formation of nuggety gold!.  I haven't really seen or been able to research any info like that.  I do have the basic grasp, but I love to read in the offseason and learn as much as I can to help on the hunt, plus I am ready for some advanced reading.  Kind of sucks to skim through the first half of a book because it only talks about how to swing a detector 
      Tell me your Favorites!  Lets make a list!
      So far on the list:
      Fists Full of Gold:  A complete Guide to the Art of Prospecting: How You Can Find Gold in the Mountains and Deserts.  (Chris Ralph) The Complete unabridged Zip Zip  (Larry Sallee) DFX Gold Methods: Finding Gold Jewelry with the Whites DFX E series TM Metal Detector. (Clive Clynick) Treasure Hunting Manual Vol 7 (Von Mueller) Tom Dankowski's 5th Edition Fisher Intelligence booklet.  (Tom Dankowski) CoinShooting I, II, and III.  (Glenn Carson) Advanced Nuggetshooting - How to Prospect for Gold with a Metal Detector.
    • By PG-Prospecting
      Ive attached a lidar map of the main area i prospect.  Id like to get peoples knee-jerk reactions on where they would swing a detector knowing large nuggets (they have generally been very crystalline with a few specimens found) have been found in the creek.  So what would be your number 1, 2, and 3 spots to focus on.  Ive detected around a good bit and have yet find anything outside of the creek, but i want to see if im missing something obvious. lol  
       
      Search Area 1.pdf
    • By Steve Herschbach
      I believe one of the best books available for the small scale miner and prospector is Fists Full Of Gold by Chris Ralph. 362 pages of chock full of information on gold prospecting, small scale mining, and metal detecting. It really is worth a spot on your bookshelf or better yet in front of your nose. Check it out at my new information page Chris Ralph's Fists Full Of Gold

×