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I noted this on another forum but want to do so here too so here goes. How many of you have experience with pocket gold? I've pocket hunted a few places hopping around with a little luck, mostly CA Mother lode country and AZ. Here are some good reads for ya if'n you're not familiar with it. Anyone from the east do this, like Georgia or Virginia? I'l be visiting Virginia for a few weeks this year, would love to hear some local voices. Pocket Gold - Prospecting For The Source POCKET GOLD - LOCATING THE SOURCE Pocket Hunting for Gold » Pocket Hunting for Gold Pocket Gold Prospecting Pocket Gold Prospecting Mud Men: Pocket Miners of Southwest Oregon—Part I Mud Men: Pocket Miners of Southwest Oregon?Part I - ICMJ's Prospecting and Mining Journal

Another question via email, with personal references removed. I prefer to answer these on the forum so everyone gets the benefit of the answer plus others can offer their opinions also. "I am new to metal detecting and, your site here has really helped me out. I have a couple questions that maybe you can help me out with. What are some of the geologic indicators that you look for to determining where to prospect for nuggets? I try to study some of the geology maps but I could use some further pinpointing. I have also been looking at the National map of Surficial Mineralogy. Using the aster and minsat7 maps what are some of the indicators that may point you to higher gold bearing ground? Any help would be deeply appreciated. Could you point me to some old places where you have found gold? I'm not asking to be shown active patches. Just areas that you feel are worked out. I just want to see what gold bearing ground looks like. This would help me to start to learn the commonalities and characteristics of gold bearing grounds. Still looking for that first nugget! Thanks again for any info you can provide." My method is much simpler than that. I basically look for gold where gold has been found before. Think of it like fishing. If you want to go catch salmon you have two options. You can go to where people have caught salmon before - pretty good odds here. Or you can go where nobody has ever caught a salmon before. Very poor odds! So call it prospecting using history to determine where gold has been found before, and then getting as close as I can to those places. History and proximity. Finally, I may then employ geology to narrow that search in a given area if it turns out the gold is confined to certain rock types. The first place I normally turn as a rough guide to any new location in the U.S. is: Principal Gold Producing Districts Of The United States USGS Professional Paper 610 by A. H. Koschmann and M. H. Bergendahl - A description of the geology, mining history, and production of the major gold-mining districts in 21 states. This 1968 publication obviously lacks the latest production figures but it still is a great overview to where an individual prospector can look for gold in the United States. It is a 283 page pdf download so be patient. Pay particular attention to the listed references in the extensive bibliography for doing further research. You can download this here and find many more useful free books on this website at the Metal Detecting & Prospecting Library Principal Gold Producing Districts of the United States So just for fun let's say I want to go look for gold in New Mexico. The section on New Mexico starts on page 200 and here is a quick summary of the opening paragraphs: "The gold-producing districts of New Mexico are distributed in a northeastward-trending mineral belt of variable width that extends diagonally across the State, from Hidalgo County in the southwest corner to Colfax County along the north-central border. From 1848 through 1965 New Mexico is credited with a gold production of about 2,267,000 ounces; however, several million dollars worth of placer gold was mined prior to 1848. Mining in New Mexico began long before discoveries were made in any of the other Western States (Lindgren and others, 1910, p. 17-19; Jones, 1904, p. 8-20). The copper deposits at Santa Rita were known and mined late in the 18th century, and placer gold mining began as early as 1828 in the Ortiz Mountains south of Santa Fe. In 1839 placer deposits were discovered farther south along the foot of the San Pedro Mountains. The earliest lode mining, except the work at Santa Rita, dates back to 1833 when a gold-quartz vein was worked in the Ortiz Mountains. In 1865 placers and, soon afterward, quartz lodes were found in the White Mountains in Lincoln County; in 1866 placer deposits were discovered at Elizabethtown in Colfax County, and silver-lead deposits were discovered in the Magdalena Range in Socorro County. In 1877 placers and gold-quartz veins were found at Hillsboro, and in 1878 phenomenally rich silver ore was found at Lake Valley in Sierra County. The mineral belt of New Mexico is in mountainous terrain that lies between the Colorado Plateau on the northwest and the Great Plains on the east. It is a zone of crustal disturbance in which the rocks were folded and faulted and intruded by stocks, dikes, and laccoliths of monzonitic rocks. Deposits of copper, lead, zinc, gold, and silver occur locally throughout this belt. Some deposits of copper and gold are Precambrian in age, but most of the ore deposits are associated with Upper Cretaceous or Tertiary intrusive rocks. The gold placers were probably derived from the weathering of these deposits. In later Tertiary time lavas spread out over wide areas of the State, and fissures within these rocks were later mineralized. These fissure veins are rich in gold and silver, but in most places they are relatively poor in base metals. In New Mexico, 17 districts in 13 counties yielded more than 10,000 ounces of gold each through 1957 (fig.19). Figure 19 is a handy map showing us where you want to look in New Mexico and also where looking is probably a waste of time. Click for larger version Gold mining districts of New Mexico The map shows what the text said "The mineral belt of New Mexico is in mountainous terrain that lies between the Colorado Plateau on the northwest and the Great Plains on the east." Sticking to this area is going to be your best bet. Based just on this map I see two areas of general interest - the central northern area, and the southwestern corner of the state. The text mentions that placer deposits were discovered at Elizabethtown in Colfax County, and the map shows that as the Elizabethtown-Baldy mining district. Following along in the text we find this: "The placer deposits along Grouse and Humbug Gulches, tributaries of Moreno Creek, each yielded more than $1 million in placer gold and silver. Another $2 million worth of placer gold and silver was recovered from the valleys of Moreno and Willow Creeks (Anderson, 1957, p. 38-39), and some gold also came from the gravels along Ute Creek. Graton (in Lindgren and others, 1910, p. 93) estimated the placer production of the Elizabethtown-Baldy district prior to 1904 at $2.5 million, and C. W. Henderson (in U. S. Bureau of Mines, 1929, pt. 1, p. 7 40) estimated the production through 1929 at about $3 million (145,138 ounces). The total placer production through 1959 was about 146,980 ounces." The reference material from the passage above is in the back of the book and is where we can get real details. Google is our friend. This stuff used to take me lots of visits to libraries! Anderson, E. C., 1957, The metal resources of New Mexico and their economic features through 1954: New Mexico Bur. Mines and Mineral Resources Bull. 39, 183 p. Lindgren, Waldemar, Graton, L. C., and Gordon, C. H., 1910, The ore deposits of New Mexico: U.S. Geol. Survey Prof. Paper 68, 361 p. Henderson, C. W., 1932, Gold, silver, copper, lead, and zinc in New Mexico: U.S. Bur. Mines, Mineral Resources U.S., 1929, pt. 1, p. 729-759. That is more than enough, but let's also Google placer gold new mexico Lots of great links there, but two jump out: Placer Gold Deposits of New Mexico 1972 USGS Bulletin 1348 by Maureen G. Johnson Placer Gold Deposits in New Mexico by Virginia T. McLemore, New Mexico Bureau of Mines and Mineral Resources May 1994 Notice the source of the last one. Most states with much mining have a state agency involved that can be a good source of information and in this case it is the New Mexico Bureau of Mines and Mineral Resources. That last one is a real gem and contains this passage: "All known placer deposits in New Mexico occur in late Tertiary to Recent rocks and occur as alluvial-fan deposits, bench or terrace gravel deposits, river bars, stream deposits (alluvial deposits), or as residual placers formed directly on top of lode deposits typically derived from Proterozoic, Cretaceous, and Tertiary source rocks (eluvial deposits). During fluvial events, large volumes of sediment containing free gold and other particles are transported and deposited in relatively poorly sorted alluvial and stream deposits. The gold is concentrated by gravity in incised stream valleys and alluvial fans in deeply weathered highlands. Most placer gold deposits in New Mexico are found in streams or arroyos that drain gold-bearing lode deposits, typically as quartz veins. The lode deposits range in age from Proterozoic to Laramide to mid-Tertiary (Oligocene-Miocene) (Table 2). There are some alluvial deposits distal from any obvious source terrains (Table 2). Eluvial deposits are common in many districts; some of the larger deposits are in the Jicarilla district." So now we have a lifetime of ideas on where to go and a basic idea of the geology. And an even better map! Click for larger version. Placer gold deposits in New Mexico Let's look for specific site information. 1. Go to http://westernmininghistory.com/mines 2. Click on New Mexico Mines 3. Click on Colfax County Mines 4. Click on Elizabethtown - Baldy District Here you will find basic site information, references, and a zoomable map with alternate satellite view. An alternate site... 1. Go to https://thediggings.com/usa 2. Click on Browse All States 3. Click on New Mexico 4. Click on Browse All Counties 5. Click on Colfax At this point note you can browse mining claim information or deposit information. Researching mining claims, land ownership, etc. is another topic but here is one source of mining claim location information. For now.... 6. Click on Browse All Deposits or Use The Interactive Map 7. Click on Elizabeth - Baldy A little more detail than the previous site, including this note "SOME FAIRLY COARSE NUGGETS IN WILLOW, UTE, SOUTH PONIL CREEKS, GROUSE AND HAMBURG GULCHES, MORENO RIVER" One more... 1. Go to https://www.mindat.org/loc-3366.html 2. Way down at bottom click on New Mexico 3. Way down at bottom click on Colfax County From here you can dig into all kinds of specific site information but the navigation is a real mess. Have fun! Historic claim staking activity can be a clue. You can get the Big Picture by looking at Mine Claim Activity on Federal Lands for the period 1976 through 2010 OK, that really should have answered your question. As far as places I have been, they are nearly all in Alaska and can be found here. Now, I did all the above from scratch with no real prior information on New Mexico in about 2 hours. You can do the same for any state. However, finding where the gold is really is the easy part. The hardest part by far is finding out who controls the land and getting proper permission for access. In Alaska everything is covered by thick ground cover, so opportunities for metal detecting are strictly at creek level, and nearly always claimed. The process there is simple - find out who owns the claims and get permission for access. In most of the western U.S. there is far less or no ground cover, and so getting in the vicinity of and searching around or near mining claims without being on them is a far more viable option than in Alaska. Or you can try and get permission to access the properties. You still need to be able to track down property locations and owners however. For private property I subscribe to and use OnXMaps for my PC, Google Earth, iPad, and iPhone. It quickly maps private property and gives you access to tax roll information about the owners. Tracking down mining claims is easy in the big picture and harder in the details. The Diggings referenced before has interactive claims maps. I subscribe to Minecache for their Google Earth overlay. However, the most comprehensive source with the deepest repository of Land Ownership information is Land Matters. They have online claim mapping with direct links to claims owner information. Note that all online sources have a lag time between the actual staking of a claim on the ground and when it reaches the online systems, if ever. I say if ever because some claims exist solely at the county or state levels and there is no good way to find them short of visiting local recorder's offices or eyeballs on the ground. Prior thread on finding claims information. Finally, I am not an expert geologist by any means. This is just how I go about it, but any tips, hints, advice, or information anyone is willing to share on this thread are very welcome!!

A very interesting article on how nuggets are created.. https://phys.org/news/2024-09-electricity-generated-earthquakes-secret-giant.html

a news story how a volcano in Antarctica is spewing gold at 6000 a day interesting indeed , it is on news break, finding small crystals of gold many miles away, this just breaks some rules of past thinking it’s areal mind bender talked to a guy in Az yrs ago he said the nuggets were from a volcano that’s why they are ther above Yuma Az I laughter my ass off on the thought ooops May be we need a more open mind food for thought News Story

I found this at an old quarry, does anyone have an idea what it could be?

https://www.youtube.com/watch?v=ryar0Mbc9lA

Well sort of. Good Friday was on Friday March 27 in 1964. I was 6 years old at the time, living at 4149 Hood Court in the Turnagain neighborhood of Anchorage, Alaska with my parents, a brother, and a sister. I was the oldest and was getting my first dose of science fiction by watching Fireball XL-5 on the TV set. We only had two channels to choose from back then in Anchorage, no live television except locally. Anything in the Lower 48 like football games was taped and played later in Alaska. My only other option as a 6 year old was Davey and Goliath on the other channel, and I was definitely more a Fireball XL-5 type. Still am. I'm laying on the couch when the TV goes out. The old tube sets would sort of flash, then the picture would slowly shrink to a small white dot, then pop, it's gone. The power had just gone out. I remember being puzzled and then hearing a roar in the distance. And then the house started going way up in the air! Everyone was home and my parents gathered my youngest siblings immediately into the living room, where I joined them huddled in the middle of the room. Our dog was going crazy running around barking. It was impossible now to do anything but huddle on the floor. The house rose up high then dropped fast, literally falling out below us. It was exactly like being on a large cruise ship in heavy seas. It was not shaking, it was a slowish go way up and then way down as the house rode giant waves. It was waves in the ground. Everything fell off every wall and shelf. Every cabinet door in the kitchen opened and the refrigerator door also, and everything ended up in a pile on the kitchen floor. Everything in the house that could fall over did. It was the end of the world in progress. It took long minutes to subside and somehow when it was over we all were fine. I don't have the greatest memory of the past but some things are etched in memory forever, and those few minutes I will never forget. The aftermath is fuzzier. We were two houses from the edge of what is now called Earthquake Park, a huge chunk of northern Anchorage that subsided and half slid into Cook Inlet. From our backyard there used to be some houses and a forest.... now it was gone from view. Two houses went over the edge, one flattened completely, but luckily nobody was home. Giant cracks and fissures were in the ground everywhere. It is a testament to stick built wood construction that most houses were intact unless they fell into a hole, though cement pad and basement damage was common. Alaska was very lucky that day. When you look at the photos at the attached links and the magnitude of the damage, the 115 deaths statewide seems a miracle. Less than twenty died in the earthquake itself, crushed by falling objects, etc. The rest died in the subsequent tsunamis, mostly in Seward and Valdez. My father was in the National Guard and was called out immediately for rescue operations. Everyone else evacuated to high ground and we stayed with friends on the hillside, as it was feared that Cook Inlet would funnel tidal waves into the city. The quake however was in Prince William Sound due south and so Anchorage was spared the tsunamis that devasted the smaller coastal towns. Anchorage and the state slowly recovered. As a 6 year old most of that went over my head and it was soon life as normal - back to school. Yet my friends and I also had an amazing new playground in the form of what became Earthquake Park. It has eroded away to forested low rolling hills now, but back then it was an amazing topsy-turvy wasteland/wonderland of broken jumbled landforms. We were strictly forbidden from going there due to on going aftershocks and fears of more quakes. It was however an irresistible pull for me and my friends who explored this strange alien landscape. Truly an amazing place, now lost to time and erosion. I know this is off topic but I'll justify it by calling it one of the most direct and personal lessons in geology a person can get at an early age. It no doubt helped guide me to my interest in the earth sciences in general, learning all about plate tectonics and the real life effects of geology gone wild. From the Wikipedia link below: "Lasting four minutes and thirty-eight seconds, the magnitude 9.2 megathrust earthquake remains the most powerful earthquake ever recorded in North America, and the second most powerful earthquake ever recorded in the world since modern seismography began in 1900" https://www.life.com/history/the-great-alaska-earthquake-of-1964-rare-photos-from-an-epic-disaster/ https://en.wikipedia.org/wiki/1964_Alaska_earthquake Location of our house above, and photo below of what Earthquake Park looked like back then. Our house would be off the right hand edge of the photo; the area in photo is off end of Clay Products Drive. Obviously there were more houses lost there…. four people died in the general Turnagain area. Photo from article linked above

There is a topic briefly covered in Chris Ralph's book "Fists Full of Gold" which I've been discussing with my prospecting buddy. When is it better to detect the hillside, ridge, or bottom of a wash for shallow gold nuggets? I usually go for hillside and ridge, but can see the logic in detecting the very bottom of a wash. It all depends on what kind of gold is present, how it was deposited, and what forces of erosion are present. However, I have dug nuggets on the steepest of slopes, in the very bottom of a gully, and also on the very top of ridge - sometimes all in ONE location! And despite my efforts to use logic to figure out a pattern, sometimes the gold surprises me. Usually my train of though goes as follows: If gold was found here before, was it found on bedrock, or distributed in the overburden? What kind of erosion factors into gold deposition (wind, water, faulting, etc)? What kind of gold is present (slugs or cornflakes)? How much trash is present? So, how do you decide the specific topography (hillside, gully, or ridge) you are going to target, based on known factors at a likely spot?

Hello, My parents have this strange rock lying around and I am wondering if anyone could identify it (see pictures). It's a small, grey rock with orange tints and it has a distinguishable comic shape. The cone edges are smooth. The bottom seems to be broken off from somewhere and has a very particular pattern. From the core there seems to be lines protruding circular around the centre point. Sort of 'fanning out'. The space between the grey rock seem to be filled up with some type of beige curd sand. The top seems to be somewhat bruised and shows a spiral pattern going downward to the bottom. The core seems to be glacy like flint stone. It was probably found somewhere along the coast of Zeeland in The Netherlands. These may be manually deposited sediments. Could anyone help me out and identify this rock object? My guess is that it's part of a stalagmite but it doesn't seem to be just chalk... Cheers, Luc

Is this conglomerated and ironized rock a good sign of possible gold?

The earth has been warming and glaciers retreating for over 15,000 years. Almost everything in the part of Alaska I lived in was recently exposed by glaciers and been prospected the last couple hundred years. Glaciers are nature's bulldozers and they destroy and mix. The gold distribution in glacial material is generally random and sparse. Where water has had time to work glacial deposits new placers can form, but the short geologic time spans we are talking about usually mean small erratic deposits. The good news is that also means you can maybe find a gold nugget just about anywhere in glacial material. If you watch the video a second time and pay attention to the area that becomes Alaska you will see that Anchorage, on the southern coast, was buried under 3000 feet of ice not too long ago. The interesting part is northern Alaska is largely ice free. This is extremely important. The placers are much older and more extensive in Interior Alaska than in the southern coastal areas. The northern US was heavily glaciated and much of the material was pushed down from out of the north in Canada. I find glacial terrain interesting because glaciers have melt water running under them and along the edges, which form small oddball placers in the strangest places, and other placers are possible in the large outwash areas. I am discovering there was a lot more glacial activity in the Sierras than I would have imagined and so this is still very relevant for me prospecting in California. These links may not be for your exact area but all contain good information about glacial geology and prospecting. Great freebie article Gold in Kansas And a small related article at the ICMJ Undiscovered Placer Deposits in Alaska Really good stuff starting page 117 on Gold Placers of Colorado Placer Deposits of the Yukon Geology of Tertiary and Quaternary Gold-Bearing Placers in the Cariboo Region, BC Here is some really technical stuff for those so inclined Glacial Geology & Prospecting Glaciers of California A much more prospector friendly version can be had in an excellent but pricey book by Chuck Lassiter, Midwest Gold Prospecting at http://www.midwestprospector.com/book.html I have a copy in my library of the best of the best. It is a high quality book with color maps and illustrations and a no-brainer at about half the cost. For $29.95 you have to just love books as much as me as that is as much as the Chris Ralph encyclopedia and this book would be a chapter in Chris book. That said, I have never seen the particular subject of glacial region prospecting covered better and more understandably anywhere else. It would be the go to primer for anyone interested in the subject.

Hi there thanks for your help. This stone was found in the Sahara desert. I thought it was a fossil but to be honest I have no idea what it is. Any help would be appreciated. seems carved but maybe could be natural markings, extremely heavy. Sound 30cm x 20cm, some sort of quartz stone embedded.

There is a place in southern Ohio where it's green grassy then it turns to black burnt slate with huge metal non magnetic balls and cratures just slammed in the grounds and under water with so many crazy rocks acid test for atinum and gold passed it can be heated o. Fire and not burn u when you touch it we had it xrayed and they were lost for words they could get it to stick to a magnet it had copper sulfade poured on them and they don't rust if hit tbey kinda will explode but can't really cut them there beautiful looks like liquid gold but not liquid most definitely beautiful also rocks that look lime black diamond and i found these small rainbow crystal not pictured in between a piece of what looks like gold tree bark and a a triangle rock i had pryed apart googled it and star dust came up could you help us to figure out what these are if you could help us no where we have went or talked to had any idea they were all lost for words

I’m not totally convinced, but it does have a shiny outer crust, it seems metallic under that crust, and a magnet attached to a string is attracted to it. I found it while digging along my foundation wall. Any expert advice is very welcome!

Best wishes to our friends in Alaska after a rather large earthquake. A more than seven-magnitude earthquake has hit the Alaskan Peninsula this evening. The US National Tsunami Warning Center has issued a warning for some areas of Alaska. The US Geological Survey (USGS) said the quake initially measured as a 7.4 magnitude but was revised to a 7.2. The depth of the earthquake in the largest US state by area was recorded as 32.6km by the USGS. The USGS also reported a 5.7 earthquake followed the larger quake just three minutes later in the same area. The National Weather Service Anchorage warned that “significant inundation is possible or already occurring. Move inland to higher ground.” See more here: https://www.adn.com/alaska-news/2023/07/15/74-earthquake-triggers-tsunami-warning-for-gulf-of-alaska-coastline/

Wondering what this stone was if anyone knows

Need a little help trying to determine what kind of rock this. Found this when I was younger and held on to it. Didn't think it was anything special until I noticed little crystals when I looked closer. It's kind of heavy too for being about the size of an egg.

It looks like it could be Jasper? Interestingly, it has well formed crystalline structures which are very bright silver, are magnetic, and don't seem to oxidize. They are single crystal structures dispersed throughout the stone. As a reference, the whole stone is about 1.5" long. I actually found it metal detecting in a wood chip playground and it range up positive. I know it isn't valuable, just a curiosity. Thx, Brian

Kindly identify this mineral,

Here are a few references to articles, etc on the California & Nevada Palo-river valleys found on older forum posts you may find of interest. “The Tertiary Gravels of the Sierra Nevada of California”, Lindgren, W. 1911 (book) “The upper reaches of the Sierra Nevada auriferous gold channels, California and Nevada”, Garside, L. J. 2005, Nevada Bureau of Mines and Geology. (downloaded from older forum link?) “Origin of gold in placer deposits of the Sierra Nevada foothills, California”, Christensen H. W. , Nevada Bureau of Mines and Geology, 2015 (downloaded from sierrageology.org). The attached photo is looking south over “Benson Lake” located in the backcountry of Yosemite National Park. The ridge line on the left (west) in the photo extends south from Piute Peak as referenced by Lindgren beginning on page# 214 of the 1911 “Tertiary Gravels”. The Lindgren photograph found between pages #218 and #219 is of the Tertiary (Eocene) Tuolumne River channel crossing east to west down ridge (south) of the lake, above and west of Piute Canyon. If you were to go to “Google Earth” you can fly around this actual channel crossing in 3D. Located down stream, near Big Oak Flat, on the tertiary Tuolumne River is one of the two richest placer deposits discovered in California. The first of the richest placer deposits was deposited by a branch of the tertiary Calaveras river into Columbia basin (CA, Columbia State Park). Both of these placers deposits are located east of the main Motherlode belt but may have crossed portions of the east lode belt (if either lode deposit existed or had raised 55 million years ago.) As a side note: “Table Mountain” located in both Calaveras And Tuolumne counties is at least 30 million years younger than these Eocene channels. The Table Mountain channel picked up placers at the cutting of the tertiary Calaveras channel at Columbia then again at the lode crossing near Woods Creeks, Jamestown. Per the article on the “ upper reaches of SN gold channels”, 2005 the central channel of the tertiary Yuba River originated near Yerington, Nevada. Seems the majority of the 1848 California placers were taken before these ancient Eocene channels crossed the main California lode deposits. Although you are allowed to fish but not detect within a national park, I have heard you may still be able to detect in Nevada. Just keep in mind that unlike YNP park rangers, old miners are neither as well dressed nor nearly as polite. Enjoy the read.

https://trib.com/news/local/casper/a-wyoming-crater-field-may-offer-insights-into-our-solar-systems-workings/article_0e0eae2c-4426-11ed-bcf6-e7dbc7b57469.html There are varying theories as to the origin - including that we once had a second moon! Or maybe smaller orbiting sub-moon type body which got shattered by an impact and rained onto Earth. The article doesn't cover this, but of note is that the formation in which this massive field of fossil craters is found in matches up with the largest extinction event in history - the Permian-Triassic extinction event - which is much larger than the one that killed the dinosaurs 200 million years later. In any event, this is an extremely interesting discovery. I believe this field probably extends beyond just Wyoming and may be a national scale, or maybe even potentially a global scale occurence with more research. The craters themselves are visible on aerials if you look closely, but are so old that any actual meteorite material has long since weathered away, but shock glass is still there.

Hope you are all out digging on this holiday weekend!! Often times when detecting for gold nuggets in dry placer conditions I get clumps of clay or dirt containing gold. What sort of clumps or lumps does your pay layer produce? This lump came from a layer of decomposing bedrock hard pack layer above a stream bed high on a flat no longer part of the current creeks flow.

Greenland could be a hot spot for coal, copper, gold, rare-earth elements and zinc, according to the Geological Survey of Denmark and Greenland. https://www.cnn.com/2022/08/08/world/greenland-melting-mineral-mining-climate/index.html?utm_source=pocket-newtab Easier than mining an asteroid -- maybe good practice for that.... (Article from 8 Aug, so a week ago as I post. I don't think I'm duplicating a previous post/thread.)

My son asked me what book to get that explains the geology and geological indicators to find gold sources? So, I said that I would get some suggestions from the seasoned gold hunters on Detector Prospector, instead of searching the internet where you will find that one person states that his book is the best, ... and, etc., etc. (My experience is somewhat limited, far from pro.)