Last weekend a couple of friends and I got out for a meteorite hunt to Franconia Arizona. I found 2 Chondrites weighing 29 and 98 grams. A few small H metal irons, a nice piece of rose colored Chalcedony, and a .50 casing with 43 date stamped. It got past 100, heat is already coming....
I targeted gold but didn't come back with any. When in Gold Basin you can also target other things. I went back to an area (actually several) where I had found meteorites and I got a couple. One is flattish and only weighs a half an ounce and the other one on the right is 1.5 ounces. These were found with the 7000. After I found them I experimented with settings for the Equinox on finding meteorites.
Meteorites are like hot rocks and can resemble the ground. It was really not possible to hear them unless I was in gold mode. I went from slow to very fast. I went from all metal to reject 9 only in gold mode. Hot rocks are the problem for a VLF. I think the setting that needs more experimenting is speed at maximum, iron reject can vary but reject just 9. This gives an audio response for objects above ground noise and lets me hear a meteorite.
Does anyone have a suggested 800 setting for meteorites?
I've added a few pictures of Gold Basin for those of you who don't see it often.
I found an unusual item yesterday while metal detecting at the farm. It is egg shape and has the feel and appearance of metal, but doesn't sound off on the detector. It is a little over 2 inches long by about 1 inch across. It is heavily pitted with some crusting in some of the pits. Also there are small inclusions (visible with a loupe). Some of these inclusions are stony in appearance and a couple look similar to crystal quartz (extremely small). It seems very dense and heavy for its size and weighs 80 grams (2 3/4 oz.).
The soil in the area has no natural stone or metals in the matrix. There was an old house site in this area.
Any help with possible ID will be appreciated.
Got out to Franconia early this week. My main objective of course was to score some nice space rocks, but I also wanted to try out White’s new Goldmaster 24k VLF unit to see how well its proprietary XGB automatic ground tracking would handle the extreme variable ground in the northern half of the strewn field. Anyone who’s searched this area with a VLF detector knows how tedious it can be dealing with the endless volcanic hot rocks, and while the 24k handled the ground matrix extremely well and running a low sensitivity eliminated a lot of the hot rocks, there still remained plenty of them to deal with. Although I did find one half-gram iron with the 24k, with all the hot rocks it was hitting I just couldn’t cover enough ground to increase my odds of making a good find.
As many of us detector operators know, in hot rock hell pulse-induction and zero-voltage transmission technologies are king. So I put away the VLF and brought out the Minelab GPZ 7000 equipped with the 19” coil for maximum ground coverage...time to get serious! With a quick adjustment I was able to ignore all but the largest and most insidious hot rocks and cover a ton of ground, netting several small irons and 2 stones at 27 grams and 75 grams. But the best part was just enjoying the peaceful serenity while roaming the wide open spaces of the Franconia strewn field, and even spotting a wild burro.
By Steve Herschbach
“A giant crater that was formed when a meteorite smashed into Earth, has been uncovered deep below Greenland’s ice sheets. The 31-kilometre-wide cavity was discovered by an international team of scientists who believe it was caused by a “rare” meteorite that struck Earth as recently as 12,000 years ago.
Evidence suggests the crater was formed when a kilometre-wide iron meteorite penetrated seven kilometres into the Earth’s crust. Since then it has been buried under the thick ice of the Hiawatha Glacier in northwest Greenland. It is the first time ever that an impact crater of any size has been found underneath one of Earth’s continental ice sheets.”
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