HardPack

Steve,

Question: In the Tahoe magnetite beach sands you were able to balance the 13x11 DD?  The 11x7 mono coil had problems balancing?

If this is the case I am starting to understand your leaning towards the Axiom 13x11DD; 11x7 mono package for the majority of western ground conditions. 
 

Steve,

I will give it a read. I just posted over in the geology forum, you may want to flesh it out some.

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.

Thanks Steve. I detect near the main lode and east on the west slope. I was thinking the 11x7 DD for size, etc. I had concerns if I could balance the 13x11 mono along the serpentine belt. Had no problem with the TDI SL stock coils. I do cross over the summit to the basin from time to time. Thanks for the input. 

Dear Garrett,

Santa agrees with Steve. Give us kiddies the base option of either the 11x7 DD or 11x7 Mono with a Z-Lynk WR-1 receiver with the 1/4 inch headphone connector. This will allow for future upgrades based on our behavior patterns. Steve can purge us but take it from me you don’t want to make Santa mad.  Have a Merry Christmas

Let me ask this…

Steve,

Would the 13x11 mono coil work on the ground you were detecting?

Gerry, 

Would the 13x11 DD coil work on the ground you were detecting?

On 1/19/2022 at 4:00 PM, oneguy said:

always been kinda curious about the Liberty area....they've found some honkers over there!

Liberty Gold and Yellowstone. A little long but worth the watch. 

Nick Zentner, CWU visit inside Rob Repin’s mine in Liberty, Washington.

Smart move on Nokta Makro’s part. How about Gold 2?

Nokta Makro just announced the company is updating the Legend with additional SMF in order to provide Park 1 plus Park 2; Field 1 plus Field 2. The Legend is also to offer 4 tones. Estimated ship date February 2022. This improvements should place the Legend closer to the SMF offered by the ML Equinox. 

Here a video link to the richest pocket gold mine in the gold country if not the state. Take note of the depressions from the wooden cross ties of ore cart tracks. A lot of barren quartz broke a lot of want to be mine owners but when they mined into a crossing the gold was in sheets. The contact was along the north south trending limestone formation. Later the drifts were used for passage ways between the cathouses and underground speak easies. Back in the 1950’s one of the sons of the then mine owner ran an ore cart off the tracks into a support timber. He discovered enough high graded gold buried under the foot of the timber to buy himself a new pick up truck and then some. Years later I would have the privilege of remodeling one of the above ground madam’s room, which was connected to this mine, into a bank manager’s office. The original cathouse door with glass window advertising, which led many a miner, logger & cowboy in the wrong direction, is still around back. I still own stock in that bank. Enjoy, few are alive that have ever got view inside of this historic mine. 

On 3/6/2021 at 8:59 AM, oneguy said:

Stumbled onto this interesting article form another site......  

 

Check out the forum post /video on the “Geology of the Liberty Gold Deposits”. Nick Zentner, Geology CWU discussion on the Eocene placers deposits located in Liberty, Washington.

Nick Zentner, Geologist CWU discussion on the Liberty WA placer & hardrock gold deposits. 

On 3/9/2021 at 2:04 PM, jasong said:

I just got a geology book called Ancient Landscapes of Western North America: a Geologic History with Paleogeographic Maps and it's pretty awesome if anyone else is looking for a good visual/map overview of how plate tectonics and the different mountain ranges have changed over the hundreds of millions of years. 

The book is on the way. The video series by Nick Zentner, Geologist, Central Washington University (youtube) may be of interest. Prior studies tracking the measurement of movement of the San Andreas Fault System required totaling the SA fault zone, the Walker Lane then required the fanning of Basin Range to account for the total movement. Follow up studies indicated up to twenty miles of offset of the Eocene river channels between adjacent ranges located in Nevada. One of Zentner’s videos “ Eocene 1- Clockwise Rotation” illustrates recent studies of the movement of the Sierra Nevada Block. Give it a watch, it may closer to home than you realized.

While still under a NDA…

Running buckets of classified material from an cemented bench gravel the old timers left behind. A lot of chiseling, single jacking & boulder winching. The pay was on a false bedrock four feet above bedrock located 35 feet above the stream channel. The material was processed both on site and at the shop. On site I used a 12vdc AGM deep cycle battery; at the shop a 120vac to 12vdc converter. I adapted a backpack frame to haul that 65 pound AGM battery. Then I heard about metal detecting…

Looks like a range of seven to thirteen button clicks to set a specific detection mode. Five clicks in the menu settings to get the user profile; one to four clicks to scroll through the user profiles 1 thru 4; one to four clicks to select a specific detection mode. The NM Legend apparently saves and remembers the last settings used for any shutdown/restarts.

The “Ferrocheck” meter appear to drop off at depth based on target size & mass. Take a look at the air test video posted under Calabash’s pre-Vacation Questions in the “Nokta Makro Section. 

The air test video sets the Legend in “Field Mode” then the tester runs through an assortment of non-ferrous targets including a hammered silver coin. The “Ferrocheck” meter is taken off of the split screen as the tester runs the bag of coins & relics so no ferrous reading at depth.

The NM Legend manual pages 22 & 23 explain the four (4) custom user profiles numbered 1,2,3 &4. User profile 1 is the default. All the custom user profiles have the default settings. It appears you can customize & save the four (4) detection modes (park, field, beach & goldfield) as a group to each of the custom user profiles 1 thru 4. 

However, keep an eye on any disclosure by NM regarding the frequency range weighted processing of SMF for the four detection modes especially modes park & field. The user can select settings such as recovery speed, single frequencies, etc but not the the SMF weighted range.

Calabash brought up an interesting question regarding the adjustability & depth of “Ferrocheck” as compared to the ML Equinox adjustable “Iron Bias”. 

Check out the "Metal Detector Advice & Comparison" for a side by side comparison of the Equinox 800 search modes to The Legend search modes per the information provided in their respective manuals.

Posted a brief

On 12/30/2021 at 10:27 AM, HardPack said:

The  Nokta Makro Legend draft user manual is now online.

Quick read of the manual: no reference to the range of SMF utilized in any of the search modes; all four factory modes preset to recovery speed 5; recovery speed adjustable; all four search modes can be modified by user then saved to a numbered custom user search mode 1-4 for a total of sixteen. 

Just posted under "Detector Comparisons" a brief side by side comparison of the Minelab Equinox 800 search modes to the Nokta Makro Legend search modes per their respective manuals. Give it a look.

Nox Manual vs Legend Manual.pdf

I am getting out of the way.  
 

The  Nokta Makro Legend draft user manual is now online.

Quick read of the manual: no reference to the range of SMF utilized in any of the search modes; all four factory modes preset to recovery speed 5; recovery speed adjustable; all four search modes can be modified by user then saved to a numbered custom user search mode 1-4 for a total of sixteen. 

A draft copy of the Nokta Makro Legend user manual is available online on the Nokta Makro website.