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DECEMBER 2010

Fairburn 2011 seasonal operations start with approved work carried over from the 2010 plan of operations.

DECEMBER 2010

We have started the application process for our NI-43-101 which should be completed next year.

NOVEMBER 2010

Walt Amick the Vice President of Fairburn Mining has left the company to operate his own construction company. Bill Groskopf has replaced Mr. Amick as Vice President of Fairburn Mining and we welcome Bill and his wife Diane to Fairburn Mining.

NOVEMBER 2010

A new backpack drill has been purchased and the US Forest Service granted approval in 2009 for our project wide campaign utilization of the portable 1" bore drill.

New Project Report & Opinion - Under the "PROJECT"; then the "PROJECT REPORTS", tabs.    

This website includes certain “forward looking statements.” All statements, other than statements of historical fact, included herein, including without limitation, exploration results and future plans of Fairburn Mining & Exploration, are forward looking statements that involve various risks and uncertainties. There can be no assurance that such statements will prove to be accurate and actual results and future events could differ materially from those anticipated in such statements. Important factors could cause actual results to differ materially from Fairburn Mining & Exploration's expectations and fact-finding documents.

  • INTRODUCTION
  • GEOLOGICAL DATA
  • GEOPHYSICAL STUDIES
  • GEOCHEMICAL DATA
  • PROJECT REPORTS
  • FAIRBURN ADIT

The Fairburn project is located approximately 3 1/2 miles north of Black Hawk & Central City, Colorado, and resides at the north east end of the Colorado Mineral Belt (see "GEOLOGICAL DATA"). Location - MAP

The Fairburn consists of approximately 900 acres. It is situated at the top of the Central City Anticline with the Dory Hill Feeder emanating from the Dory Hill Fault and entering the project's east side. An apparent 'stockwork' feeds local lode/systems residing within the project. West of the the project are the historic high producing mines of the "Wide Awake" (now Hawkeye) mining area (see "AREA HISTORY & PRODUCTION"). The entire project is aligned in the same northwest orientation as those systems to take advantage of the apparent flow convention, (see graphic under "AREA HISTORY & PRODUCTION/HISTORIC DOCUMENTS & PRODUCTION DATA"). The Fairburn Adit (whose portal is located on the east side of the project, (see "FAIRBURN ADIT"), has been an initial focus of development. For complete brochure click here.

The structurally controlled mineralization, believed to extend the entire length of the property, has never been fully tested.  However, if surface, trench, and drift samples collected to date are representative of the overall mineral system, there is high potential for a rich Ag-Au deposit well worth the interest of long-term investors.

Image on right is a satellite view with an area geology map image and project ground magnetic map image superimposed.

Fairburn Mining & Exploration is a subchapter S corporation and is operated by Allen Bonck, Bill Groskopf, and Craig Kidwell.

  • COLORADO MINERAL BELT
  • AREA GEOLOGY
  • LOCAL GEOLOGY
  • REPORTS
 

Below is a close-up view of the CMB's north east end; the Fairburn project is shown (in yellow) near the center of the illustration. It also appears likely to be at one end of a dike associated with the Junction Ranch Fault.

State wide view of the CMB; the Fairburn project is near the north east end.    
    Sillimantic Biotite Gneiss (Precambrian X) - Silvery gray fine-to-medium grained biotite-quartz-plagioclase-sillimanite gneiss containing variable quantities of garnet and muscovite. Mica-rich gneiss is interlayered with rocks of similar mineralogy but lower mica content. Strongly foliated, moderately well-layered with variable quantities of migmatitic pegmatite in semi concordant pods, stringers, or lenses. Locally muscovite is coarse grained, and seems to replace sillimantite and microline. Locally contains garnet-rich layers. Small quantities of hornblende gneiss and calc-silicate gneiss are locally interlayered. Interpreted as formed by the metamorphism of a clay-rich sediment containing sandy layers.
   
    Boulder Creek Granodiorite (Precambrian X) - Light-gray, pinkish-gray to medium gray or speckled black-and-white medium-to-coarse grained granodiorite containing minor amounts of quartz monzonite and quartz diorite. Foliated along margins of masses, and in the interiors of the smaller bodies, but elsewhere massive. Composed chiefly of plagioclase, microline, quartz and biotite, with hornblende and magnetite commonly present. Seriate porphyritic varieties have crystals of microline as much as 2.5 cm long. Cataclasized varieties range from rocks showing weak granulation and mortar structure to mylonite. Dated by Rb/Sr isochron as 1,700+/-40 m.y. by Peterman and others (1968).
   
    Felspar-Rich Gneiss (Precambrian X) - Microline-plagioclase-quartz-biotite gneiss of ganitic appearance. Fine-to-medium grained light-to-medium gray gneiss that weathers to shades of light tan or brown. Conspicuous foliation defined by variations in proportion of biotite and feldspar, and layering defined by planar alignment of biotite and other minerals. Grades from leucocratic granitic gneiss containing more microline than plagioclase or quartz to plagioclase-rich gneiss with only a few grains of microline and containing both biotite and hornblende. General composition is near granodiorite. Locally contains conformable layers or lenses of amphibolite, biotite gneiss, hornblende gneiss, and calc-silicate gneiss that make up less than 10 percent of the unit. Where layers of these other lithologies are more abundant, mixed units have been mapped. The feldspar-rich gneiss is interpreted as metasedimentary and metavolcanic, with the dominant rock type representing metamorphosed pyroclastic and epiclastic dactite or rhyodacite.
   
    Amphibolite (Precambrian X) - Fine-to-medium grained dark-greenish-gray to black poorly layered amphibolite that ranges from well foliated to nearly massive. Generally in conformable masses, but some are cross-cutting; in part metasedimentary and in part metavolcanic.
   
    Interlayered Biotite Gneiss, Hornblende Gneiss, and Calc-Silicate Gneiss (Precambrian X) - Rocks similar to sillimatic biotite gneiss, calc-silicate gneiss, and hornblende gneiss; predominately sillimante biotite gneiss, but calc-silicate gneiss and hornblende gneiss make up about one third of the unit; the hornblende gneiss and calc-silicate gneiss are interlayered on a scale of a few centimeters, and form layers alternating with the biotite gneiss on a scale of several meters.
   
larger image
    Sillimantic Biotite Gneiss (Precambrian X) - Silvery gray fine-to-medium grained biotite-quartz-plagioclase-sillimanite gneiss containing variable quantities of garnet and muscovite. Mica-rich gneiss is interlayered with rocks of similar mineralogy but lower mica content. Strongly foliated, moderately well-layered with variable quantities of migmatitic pegmatite in semiconcordant pods, stringers, or lenses. Locally muscovite is coarse grained, and seems to replace sillimantite and microline. Locally contains garnet-rich layers. Small quantities of hornblende gneiss and calc-silicate gneiss are locally interlayered. Interpreted as formed by the metamorphism of a clay-rich sediment containing sandy layers.
   
    Boulder Creek Granodiorite (Precambrian X) - Light-gray, pinkish-gray to medium gray or speckled black-and-white medium-to-coarse grained granodiorite containing minor amounts of quartz monzonite and quartz diorite. Foliated along margins of masses, and in the interiors of the smaller bodies, but elsewhere massive. Composed chiefly of plagioclase, microline, quartz and biotite, with hornblende and magnetite commonly present. Seriate porphyritic varieties have crystals of microline as much as 2.5 cm long. Cataclasized varieties range from rocks showing weak granulation and mortar structure to mylonite. Dated by Rb/Sr isochron as 1,700+/-40 m.y. by Peterman and others (1968).
   
    Felspar-Rich Gneiss (Precambrian X) - Microline-plagioclase-quartz-biotite gneiss of ganitic appearance. Fine-to-medium grained light-to-medium gray gneiss that weathers to shades of light tan or brown. Conspicuous foliation defined by variations in proportion of biotite and feldspar, and layering defined by planar alignment of biotite and other minerals. Grades from leucocratic granitic gneiss containing more microline than plagioclase or quartz to plagioclase-rich gneiss with only a few grains of microline and containing both biotite and hornblende. General composition is near granodiorite. Locally contains conformable layers or lenses of amphibolite, biotite gneiss, hornblende gneiss, and calc-silicate gneiss that make up less than 10 percent of the unit. Where layers of these other lithologies are more abundant, mixed units have been mapped. The feldspar-rich gneiss is interpreted as metasedimentary and metavolcanic, with the dominant rock type representing metamorphosed pyroclastic and epiclastic dactite or rhyodacite.
   
    Amphibolite (Precambrian X) - Fine-to-medium grained dark-greenish-gray to black poorly layered amphibolite that ranges from well foliated to nearly massive. Generally in conformable masses, but some are cross-cutting; in part metasedimentary and in part metavolcanic.
   
    Interlayered Biotite Gneiss, Hornblende Gneiss, and Calc-Silicate Gneiss (Precambrian X) - Rocks similar to sillimatic biotite gneiss, calc-silicate gneiss, and hornblende gneiss; predominately sillimante biotite gneiss, but calc-silicate gneiss and hornblende gneiss make up about one third of the unit; the hornblende gneiss and calc-silicate gneiss are interlayered on a scale of a few centimeters, and form layers alternating with the biotite gneiss on a scale of several meters.
   
larger image

REPORT

EXCERPT LINK
Colorado Mineral Belt Revisited— An Analysis of New Data; - by Anna Burack Wilson and P.K Sims: Open-File Report 03-046 U.S. Geological Survey, Denver, Colorado
U.S. DEPARTMENT OF THE INTERIOR U.S. GEOLOGICAL SURVEY
"The new data indicate that the northeast-trending ductile shear zones that localized ore-related igneous activity in COMB are more abundant than known previously, extend outward laterally to the northwest and southeast, and can account for localizing valuable ore deposits in outlying regions such as Cripple Creek, Rosita Hills-Silver Cliff, and Summitville. . . " (Abstract)
Geology and Ore Deposits of the Front Range, - Colorado; - by TS Lovering and EN Goddard: - Geological Survey Professional Paper 223; 1950 "..North of Central City, the mineral belt follows metamorphic rocks along the western and north western border of the Boulder Creek granite batholith. The Laramide faulting localized at the edge of the granite masses created fissures approximately parallel to regional trend of the porphyry belt that were subsequently mineralised from many local sources... " (page 3)
Paragenesis and Structure of Pitchblende Bearing Veins, Central City District, Gilpin County Colorado; - by P K Sims, January 1956; - Trace Elements Investigations Report 433 "..north westerly trending fractures were formed. These are members of Lovering's "breccia reef system. Only two faults of this system - - the Blackhawk and the JL Emerson - - are present in the Central City district. The Blackhawk fault is barren;..." (page 9)
Recommendation Report; - Fairburn Mining
Alan Roberts - Rockhead Consultants
April 2008
"RECOMMENDED WORK PROGRAM – FAIRBURN LODE.
This recommendations report follows upon a site visit made on Friday 28th March, 2008 to Fairburn Mining’s office and the existing workings on the Fairburn Lode. It intends to take into account the character of mineralization exhibited at the Fairburn Lode, within the Colorado Mineral Belt, manifesting as a Tertiary epithermal gold-telluride system hosted by deep crustal shear zones in Proterozoic biotite and sillimanite gneisses."
     
  • MAGNETIC SURVEY
  • INDUCED POLARITY SURVEY

GROUND MAGNETIC STUDY

In 2008 Fairburn Mining & Exploration completed a high resolution ground magnetic survey.

This survey was performed using a single mag unit. Approximately 15,000 data points were gathered from a 100 foot by 25 foot grid spread across the project.

To see a more detailed view of the project; - PDF of Project Magnetic Survey

LINK STUDY DESCRIPTION LINK STUDY DESCRIPTION

Apparent Resistivity and Total Magnetic Intensity Data ... LINE A; 100 foot dipoles, surveyed 2005, modeled June 2006; - Line A (& Line B) location, - map -

Apparent Resistivity and Total Magnetic Intensity Data ... LINE B; 100 foot dipoles, surveyed 2005, modeled June 2006; - Line A (& Line B) location, - map -
       
       
       
       
       

GEOCHEMICAL SURFACE SAMPLING

Surface sampling is divided into sections and zones over the project. Sections are numbered beginning at #100 on the west (left), and end at #700 on the east side (with section #1000 being specific areas neighboring the project). Zones are numbered from the southern border starting at #1, with zone #8 being the northern border. A large version map of the image on the right is available: - here - (new window)

A copy of the most recent sampling log, showing sample number, UTM coordinates, sample description and date taken is available. For a copy of the most recent sampling log, click here - (new window)

RESULTS - Surface testing consists of 41 element tests with a fire assay of Au and Ag. A copy of the latest test results, (in Excel format), is available: - here - (new window)

 
  • CURRENT REPORT
  • PAST REPORTS
  • MISCELLANEOUS REPORTS

2008 ANNUAL PROJECT REPORT - PDF

NW Adit opened and tested. Project-wide high resolution ground magnetic survey completed. Geochemical surface sampling started at structure intercepts through-out project.

 
     
     
     
     
     
     
     
     
     
     
     
     
  * MORE REPORTS ARE AVAILABLE UNDER "GEOLOGICAL DATA"  
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     

2009 FAIRBURN DEVELOPMENT COST ANALYSIS - B Burden - PDF

A study "... meant to begin the process of assigning costs to developing a mineral deposit from the initial exploration phase into a producing mine. This development strategy and associated costs is a narrow examination of the many items needed to be addressed during this process."

 

Dec 2009: An Opinion of the Fairburn Mining Property - J Price - PDF

A letter of opinion prepared by Jason Price, a local geologist employed by an international silver corporation.

 
     
     
     
     
     
     
     
     
     
     
     
     
     
  • HISTORY
  • CROSS SECTION
  • PLAN VIEW WITH MAGNETIC SURVEY
  • PHOTO SURVEY
FAIRBURN ADIT PORTAL 2007 HISTORY

Otto Ruttkamp located the original Fairburn claim in 1921. It was 300 ft wide by 1500 ft in length. It was extended in 1924, 150 ft north and 150 ft south making the claim 600 ft wide by 1500 ft in length. In 1944 Otto filed to patent the claim, he received the patent certification but it was pending the field mineral examination. Through a series of events the examination was not completed until December 1957 and the patent was denied. The mineral samples were taken from a mined out location of the drift. Otto did not own the mine at the time the patent was rejected. He had “quit claimed” it to Laura Collins in 1951. Otto's wife Emma had died earlier, and Otto had only mined a few years after her death. At the time of the patent rejection in 1957, Laura Collin's son Jim had inherited the mine from his mother. Jim was not a miner, and did not appeal the rejection. The claim was closed and abandoned until 2001 when Allen Bonck opened it. The new Fairburn claim had the same corners as the original 1944 mineral survey. It has become visually apparent that upon encountering the vertical shaft of the Independence, Otto may have ramped-up his mining strategy for the Fairburn.

Otto Ruttkamp was a well known geologist and later also served as mayor of Black Hawk. Though there are no production records for the adit, it is clear Otto was pulling ore out. He had dug a vertical shaft east and down the hill from the portal, with the plan of sinking a drift at a level underneath the current workings and connecting it to the winze where the beginning of the ore chute started (see "Cross-Section"). However his first attempt at the vertical shaft was in vain, as he mistakenly located it just east of his eastern claim-line. He had to tear it down and start again, but did not finish the project. This may have been do to age and/or his wife's death.

FAIRBURN ADIT CROSS SECTION OF ADIT AND ADJACENT TEST PIT

In this cross section, Otto's stoping in the direction of an ore chute is evident, (for the purpose of illustration; the length of the adit has been shortened, and scale is approximate). Otto Ruttenkamp's plan to come in at a lower level, (under the existing drift), to stope or remove the area from the winze back, seems to have been sound. Our preliminary testing also confirms this enrichment zone. The vein in this area is approximately 3 meters wide. The Fairburn Adit has been the primary focus of the project's initial development, and it will continue to be our goal to pursue testing of this zone by underground drilling when permitted.

The Fairburn is a north westerly / south easterly trending vein. The crossing structure, (NE & SW trending; upper right inset of graphic on right) has initially shown a value of .34 oz/ton, though it is narrow at that sampling point (TP3-0701, aka 700-4-4).

An additional illustration showing a perceived flow convention and connectivity between the Dory Hill Fault, Fairburn ore chute, and ultimately the Wide Awake mining area is availabe here or under "Area History & Production/Historic Documents & Production Data".

FAIRBURN ADIT - PLAN VIEW FAIRBURN ADIT With MAGNETIC SURVEY IMAGE

This illustration is of a high resolution ground magnetic survey image with the adit (in white) superimposed. The adit's relationship to structure is apparent. A dashed blue line, (trending NE/SW), indicates a contact zone between the batholith and the gneiss.

The brown dots are test pits; contour lines (yellow) can be seen as well as old mining roads (brown).

Additional geophysics of this section (700-4), of the project can be viewed under "Geophysical Studies".

  • PAST OPERATIONS
  • CURRENT OPERATIONS
  • FUTURE OPERATIONS
LINK PLAN OF OPERATION - Description STATUS
2008 Plan of Operation for East side of project: Open test pits, top of Fairburn, and Annie Adit Approved
2008 Plan of Operation for for west side of project: Open north west adit, open south west adit Approved
2007 Plan of Operation: Open test pits, north east gate access Approved
2006 Plan of Operation: Open Fairburn Adit, Bond access road Approved
     
LINK PLAN OF OPERATION - Description STATUS

Preliminary Estimate of Mineral Reserve.

2009-10 Plan of Operation; East side trenching and road (access) improvement.

Pending - approval
2009-10 Plan of Operation; West side trenching and road (access) improvement. Pending - approval
2009 Notice of Intent to drill with 1" core backpack drill Approved
Carry-Over operations from 2008 East and West Plans - approval letter: - see "Past Operations" for plan details Approved

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LINK PLAN OF OPERATION - Description STATUS
2011 DIAMOND DRILL PLAN: This is the Forest Service FS 2800-5 form, itemizing timeframe, access, methodology, and remediation plans. The plan is designed to be implemented in stages (as an option).

To be reviewed

DRILL PLAN DETAILS: Supplement to the Forest Service FS 2800-5: This supplemental document covers drill site and recirculation pond specifications; maps, drill hole table, etc.  
ACCESS: Supplement to the Forest Service FS 2800-5: This supplemental document covers drill site access, with maps, details of where new access is required and where access is either pending or already approved.  
     
  • HAWKEYE MINING HISTORY
  • HISTORIC DOCUMENTS & PRODUCTION DATA
 
A Summary Report of the Hawkeye Mining History; Our own compilation of reports on the Wide Awake, Perigo and Gilpin mining districts with a production summary table.  
 
 

LINK

DOCUMENT DESCRIPTION   LINK DOCUMENT DESCRIPTION
Map and production table of the area's historic mines. The single page document shows mine location in relation to the Fairburn Project, as well as its vein orientation (degrees), number of shafts, drifts, extent, etc.   This is an illustration of apparent flow convention from the Dory Hill Fault (and the Central City Anticline) to the historic mines of the Wide Awake area.
      Weston's 1908 report on the Perigo & Gold Dirt Group; - "Some of the quartz gave up the precious metal so plentifully that little care was taken in milling or saving it..."
An appeal for large scale funding by J. Rollins for the Perigo & Gold Dirt Group and a collection of recommendation letters.   McLeod's 1901 Report on the Free American and New York Mine of Wide Awake. "The ore in the main vein (Free American) is a Sulphide or Iron or Pyrite with little quartz except in a few places and is a desirable smelting ore.."
J.S. Wallace's 1898 report on the Procunier; This was a recommendation report. Excerpt: "...the vein matter in this level is over 15 feet width and is all good milling ore."   Professor E.C. Lindemann's 1899 report on the Procunier (Group) of Mines. Lindemann added to the north of the Procunier with 3 claims. He sought investors for this project, but also had his own producing mine (Golden Star) to the east.
A collection of reports and writings on the Caledonia, Smith, Fennely and Pine Cone mines. This is a recent document compiled for internet display.   Robert Watson's 1934 report on the Stewart Mine; Excerpt: "...northwest fractures such as the Stewart, Caledonia, Procunier, ... are the more important ones and have yielded a larger production than fractures running in other directions."
 

Allen Bonck:   President

Bill Groskopf:   Vice-President

Craig Kidwell:   Partner

Ron Bell:   Partner

   
 

 

 


CONTACT US

Mailing Address:

P.O. 17498, Golden, CO 80402

Office Phone:

303) 582-0234