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Liberty Star Uranium & Metals Corp. (LBSR: OTCQB) is an Arizona-based mineral exploration company engaged in the acquisition and exploration of mineral properties in the states of Arizona and Alaska. Currently the company controls properties totaling approximately 26,011 acres (about 41 square miles) which are located over what management considers some of North America’s richest mineralized regions for copper, gold, silver, molybdenum (moly), and uranium. Read more Hay Mountain Summary (PDF)
Hay Mountain/Tombstone Super Project
Geochem Field Tech, August, 2011
The Tombstone Super Project (TSP ) hosts Liberty Star’s premiere multi target property: Hay Mountain. The TSP initially consisted of 33 unpatented federal lode mining claims over a projected covered porphyry copper mineral center in Cochise County, Arizona. In 2011 and 2012 more USBLM claims and Arizona Mining Exploration Permits were added after Chief Geologist James Briscoe discovered a large multimodal anomaly over a large covered porphyry copper mineral center within the larger TSP area. Currently, the TSP entails 14.67 square miles of claimed or permitted lands with Hay Mountain covering 13.45 square miles of the area.
Mining throughout the region began in the late 19th Century and led to the rise of legendary boom town Tombstone, Arizona. Many of these mining sites, including what is now Liberty Star’s land, reside within or adjacent to a large volcanic and intrusive geologic feature known as a caldera. These caldera structures are present throughout southern Arizona, making the region one of the richest porphyry copper areas on the planet. By 1938 exploration and development of the Tombstone Mining District in this area was stalled by altered sedimentary rock (hornfels) that was too hard for the drill technology of the day(churn drills).
With copper prices on a continued upward trajectory, and modern mining technology in place, the terrain along this large caldera is again of great interest throughout the mining industry. Through geochemical sampling and computer modeling, Liberty Star founder and Chief Geologist & CEO James Briscoe, discovered a compelling drill target for a very large limestone hosted porphyry copper-replacement deposit. If exploration is successful, mining projected for this target would be underground and could produce copper, moly, gold, silver, lead, zinc and potentially other by product metals. While there are no drilled mineral resources on this property, it is adjacent to the old historic Tombstone Consolidated mines and the target is defined by technical work to allow an immediate start to drill testing. The Tombstone mining district has a well developed infrastructure and enjoys sunny skies over 300 days a year, ideal for year round exploration and mining activities.
In mid March, 2011 Liberty Star contracted SRK Consulting to prepare technical reports over three areas within the Tombstone Super Project : Hay Mountain, Tombstone South and Walnut Creek. Members of SRK’s engineering/scientific staff supervised by Qualified Person and SRK’s Tucson Office Principle Geologist Corolla Hoag, and geologist Dr. Jan Rasmussen have visited the Tombstone property. Their information combined with the previously gathered geochemical, geophysical and computer modeling data underwent a thorough technical analysis. The resulting technical reports concluded that all three claim blocks were worthy of further exploration work.
In 2011 extensive geochemical sampling at Hay Mountain rendered approximately 1,800 soil/rock/vegetation samples which were analyzed for 64 elements at a certified facility in Vancouver, British Columbia. Expected markers for porphyry copper, gold, moly, silver and zinc were present. The geochemical data also yielded the unexpected presence of four of seventeen Rare Earth Elements (REEs). Further analysis of the REE data will be undertaken at a later date.
Liberty Star contracted Geotech Ltd. to run a ZTEM airborne electromagnetic survey over the Hay Mountain area in 2013. The final draft report has been submitted to Liberty Star concluding :
1. There are as many as 10 meaningful targets within the Hay Mountain Project area.
2. Hay Mountain contains a major anomaly centered on the geochem anomaly reported by Liberty Star (NR 127).
From the “Executive Summary” Summary Interpretation Report on a Helicopter-Borne
Z-Axis Tipper Electromagnetic (ZTEM) and Aeromagnetic Geophysical Survey:
The Hay Mountain Project Tombstone Mining District, Cochise County, Arizona
For: Liberty Star Uranium & Metals Corp.:
“The Hay Mountain Property is mainly underlain by a thick sequence of Paleozoic quartzite, limestone and siltstones, but potentially hosts buried porphyry copper deposits at structural intersections and under basin-fill formations. There is additional potential for polymetallic carbonate-hosted replacement deposits (CRD), as well as shallow chalcocite blanket porphyry type deposits and also skarn type porphyry copper deposits. Previous soil and vegetation geochemical surveys have identified a coincident Au-Pb-Cu anomaly and larger Mo-halo in the center of the property. The objective of the ZTEM surveys is to identify favourable magnetic and resistivity signatures related to potentially more deeply buried porphyry copper, CRD/skarn and chalcocite replacement deposits at Hay Mountain. The Magnetic surveys have determined that Hay Mountain hosts a large dominant magnetic high that lies buried below the Paleozoic sediments is centered over the Liberty Star geochemical anomaly and remains open to the south…As many as ten (10) magnetic anomalies have been defined.” (See NR 170, 12/11/2013)
View TSP/Hay Mtn ZTEM & Maps (web page)
View the May 2013 Hay Mtn Summary Presentation (PDF)
View the Feb 2013 Archaeological Study (PDF)
TSP/Hay Mtn ZTEM & Maps
Mag3D Magnetic Inversion Feb 2014
L1410 ZTEM 2D Inversion Resistivity Section Feb 2014
LSUM ZTEM composite Jan 21, 2014
Hay Mtn geochem anomalies w/ drill targets and geochem sample locations
Hay Mtn geochem samples & results (2003-2011)
Hay Mtn property
local Cu and Au mines
Cu and Au mining district
JMG Porphyry Copper Model
Tombstone Porphyry-Precious Metals Project consists of 33 unpatented federal lode mining claims over a projected covered porphyry copper mineral center in Cochise County, Arizona. Mining throughout the region began in the late 19th Century and led to the rise of legendary boomtown Tombstone, Arizona. Many of these mining sites, including what is now Liberty Star's land, reside within a large volcanic and intrusive geologic feature known as a caldera. These caldera structures are present throughout southern Arizona, making the region one of the richest porphyry copper areas on the planet. Fuller exploration and development of the Tombstone Mining District was stalled by altered sedimentary rock that was too hard for the drill technology of the day. With copper prices on a continued upward trajectory, and modern mining technology in place, the terrain along this large caldera is again of great interest to the international mining community. Through geochemical sampling and computer modeling, Liberty Star founder and CEO James Briscoe, discovered a compelling drill target for a very large limestone hosted porphyry copper-replacement deposit. If exploration is successful, mining projected for this target would be underground and could produce copper, moly, gold, silver, lead, and zinc. While there are no drilled mineral resources on this property, it is adjacent to the old historic Tombstone Consolidated mines and the target is defined by technical work to allow an immediate start to drill testing.
East Silver Bell Porphyry Copper Project is within the Silver Bell Mining District located northwest of Tucson, Arizona. Asarco Mining LLC with joint venture partner Mitsui Mining of Japan currently operates open pit copper mines in the area. Asarco has a solvent extraction (SXEW) plant approximately 4 1/2 miles to the west of the East Silver Bell Project property line. Liberty Star's property, within the same mining district, includes 26 unpatented lode mining claims covering a previously unrecognized porphyry copper center. Two mining companies had some interest in the area during the late 1990s but relinquished the ground despite revealing enriched copper in one hole and substantial amounts of leached capping in all other holes, an indicator for porphyry copper deposits. Stagnant copper prices contributed to the abandonment of the ground prior to the identification of any ore body. The claims currently are within the Ironwood National Monument, which was established after the claims were staked.
Big Chunk Super Project
At a glance
| || |
|Property rights ||Exclusive mineral exploration rights held by wholly-owned Alaskan subsidiary Big Chunk Corp |
|Location ||Approximately 200 miles southwest of Anchorage on the north side of Cook Inlet |
|Area ||54 State mining claims on 12 square miles (7,680 acres) in 2 blocks |
|Metals sought ||Copper, gold, molybdenum (moly), silver and zinc |
|Status ||Exploration |
| || |
About the company
Liberty Star Uranium & Metals Corp. is a mineral exploration company led by James A. Briscoe
a licensed, experienced Professional Geologist. The Big Chunk Super Project consists of 54 State of Alaska 160-acre mining claims, covering approximately 12 square miles of southwest Alaska. The Big Chunk claims were initially staked in 2003 after Mr. Briscoe recognized that a caldera which was probably responsible for hosting Northern Dynasty Minerals’ Pebble discovery was strikingly similar to the caldera hosting the Silver Bell mining district in southern Arizona, where he had worked as a geologist in the 1960’s and again in the 1990’s.
As August, 2012 Liberty Star has commenced exploratory drilling on the BCSP, south block. The phase 1 drilling plan retrieved core from depths extending to 1,696 feet.
Liberty Star’s ground is located near year-round ice-free tidewater on the Pacific Ocean at Cook Inlet. Known mineralization in this area occurs near surface in an area of gentle topography and low elevations. The Pebble Project, a joint venture between Northern Dynasty Minerals and mining industry giant AngloGold seeks to construct and operate an open pit and underground mine in an area considered one of the richest for porphyry gold, copper and molybdenum in the world. Further development of a port on the Cook Inlet, nearby roads, and suitable energy sources are already in process with the approval of the State of Alaska and the Federal Government.
In May 2010 Liberty Star announced that its geophysical contractor (Geotech Ltd.) had confirmed multiple porphyry copper ZTEM geophysical signatures in Big Chunk’s south claim-block. In August 2012 Liberty Star began drilling in the BCSP south block.
2009 ZTEM Surveys
In June 2009 Liberty Star contracted Geotech Ltd. (a Canadian based full service contractor specializing in airborne geophysical surveys) to participate in performing assessment work required by the Alaska Bureau of Mineral Resources for the assessment year 2009/2010 on the Big Chunk Super Project.
At the request of Mr. Briscoe, Geotech Ltd. executed a full ZTEM program over the south block of the Big Chunk claims. ZTEM (Z Axis Tipper Electromagnetic System) is a helicopter borne survey method measuring electromagnetic activity. Geotech’s technology and sensitive measuring equipment enables detection and modeling of the shape of metallic mineral bodies at more than two kilometers (3,300 feet) below the surface. Conducted in August 2009, the survey consisted of 1,256 line km (780 line miles) of ZTEM and very detailed airborne magnetics. The survey lines were spaced 250 meters (825 feet) apart.
In April 2010 Liberty Star received initial word from Geotech that the 1D models resulting from the ZTEM surveys confirmed Mr. Briscoe’s projections for multiple porphyry centers and associated Carlin Style and Round Mountain Style stand-alone gold deposits to be discovered within the Big Chunk caldera.
By May 2010 Geotech had presented the results of computer processing derived from the ZTEM data; the results were a 2D inversion which allows for a three dimensional approximation of the porphyry systems present in the south block of the Big Chunk Super Project.
With the ZTEM data in hand, Mr. Briscoe, Liberty Star’s Chief Geologist, collaborated with other experienced geology specialists to analyze all existing geologic, geochemical, and geophysical data sets compiled from the 2004-2009 exploration work. Commented Mr. Briscoe, “Over the last six years we have carefully gathered across the entire Big Chunk caldera some 11 thousand geochem samples and assayed them for 64 elements each, completed low level high resolution aeromagnetics and compiled base geology. Additionally, we have completed over 140 miles of ground based IP geophysics. All of this data is in digital format and can be compared and interpreted together at the same scale. The new ZTEM data for the Big Chunk Super Project-South Block will be another step in our meticulous exploration process. Along with all the preceding studies, it will be used to refine and pinpoint what these mutually reinforcing data appear to show – anomalies that are characteristic of large porphyry copper mineral bodies, which may contain significant mineralization. Accurately placed drill holes to test these mutually reinforcing data will be the final step in testing for the presence of significant mineralization.”
In May 2010 Liberty Star received word from Geotech Ltd. that their interpretation showed at least 6 to 7 signatures that are consistent with porphyry copper responses. Stated in their report: “Comparison against ZTEM 2D resistivity inversion results have defined resistivity features that resemble typical potassic-altered core and pyritic-propylitic halos over known porphyry systems, extending to great depth ( 2 km or about 6562 feet).”
These anomalies are in the size range of the footprint of the nearby Pebble deposit(s), also within the Big Chunk caldera, and go to significant depth. Also stated in the report “Porphyry coppers… tend to be associated with pronounced resistivity highs associated with a potassium rich altered core, surrounded by resistivity lows associated with pyrite propylitic alteration halos (i.e. Mt Milligan, San Juan-Lone Star, Morrison etc.).” Geotech’s conclusions are consistent with the Porphyry Copper Model, which Company Director Dr. John Guilbert co-developed and is described and illustrated in his book, Geology of Ore Deposits. In June, 2012 Geotech delivered enhance imagery of the ZTEM surveyed area that added a more detailed understanding of the terrain.
2004 – 2005 Exploration Program and Results
Initial staking & aeromag
Liberty Star staked the property in December 2003. An aeromag survey was flown over the property in January through May, 2004. Field work, including surface sampling, Induced Polarization (IP) geophysics, and drilling, was conducted from June through October 2004.
The aeromag survey was flown in January through May 2004 by McPhar Geophysics with the use of a fixed-wing aircraft. The survey covered approximately 1,407 square miles. It was flown at 820 foot line spacing and an optimum elevation of 395 feet; both of these controls lead to a highly detailed survey.
A majority of the 2004 field work was surface sampling. The table below summarizes the number of samples collected during this work. Water samples were collected and analyzed for fluorine in a field lab, for rapid response to fluorine anomalies.
|Sample Type ||# of samples |
|Vegetation ||4,274 |
|Soil ||3,366 |
|Water ||993 |
|Stream Sediment ||610 |
|Rock ||60 |
|Total ||9,303 |
Thirty days of both dipole-dipole and Reconnaissance IP (RIP) was conducted in August and September 2004. Approximately 26 miles of dipole-dipole was completed and 30 RIP stations were measured, over an area of 13 square miles. A few small areas of IP response were detected with the RIP survey. IP response was measured on all four IP lines at White Sox. These results indicate the presence of disseminated metallic material with consistent readings above 30 msec or mrad.
Four drill holes, totaling 1329 feet, were completed in the White Sox area. Visible copper mineralization was noted in two holes and visible molybdenite was noted in several places in one hole. Low grade gold was also encountered with the other mineral intercepts. This mineralization and the associated alteration may be indicative of a copper porphyry system.
2005 Exploration Program
The Big Chunk property is in various stages of exploration. The White Sox area has received the most work and is a little more advanced than other portions of the property. A mineralized center has been identified with drilling and geophysics there. Additional drilling on and near the IP response is planned. Four months of planned IP should fully delineate the IP response at White Sox with additional IP planned to the north, east and south of the 2004 survey. The company proposes to continue to drill to evaluate those areas where the appropriate IP response is >30 mRad. If ore-grade mineralization is encountered, the company hopes to initiate a grid drilling program to delineate resources, if and as time in the season allows.The company proposes to conduct dipole-dipole and reconnaissance IP on the remainder of the property. Any higher quality geochemical anomalies will be evaluated with dipole-dipole IP. If time in the season permits, the company intends to drill test dipole-dipole IP responses over 40 mRad, if any are detected.The company intends to evaluate lower quality geochemical anomalies with RIP and to detail any RIP anomalies with dipole-dipole IP.
North Pipes Super Project
Location: Northern Arizona
Claims: 390 Federal Lode Mining Claims in numerous targeted blocks, or “breccia pipes” (13.13 square miles)
Ownership: Claims are 100% owned by Liberty Star Uranium & Metals Corp. (Subject to no royalties)
Status: Drilling Program December, 2007 through January, 2008
Photos: Click Here
After geologic research spanning a period of about four months, in the fall of 2003 we initiated an aggressive program of ground acquisition. As of September 2013, we have 390 standard Federal lode mining claims, in numerous separate blocks covering breccia pipe targets located on the Colorado Plateau Province of Northern Arizona known as the Arizona Strip. This major project is known as the North Pipes Super Project, and is targeted specifically for high-grade uranium mineralization.
Jim Briscoe,CEO, Chief Geologist and Chairman of the Board, developed uranium exploration experience from 1978 through 1980 when his consulting company was under contract with the exploration subsidiary of the largest nuclear electric utility in the U.S.A. His company had responsibility for uranium exploration over the entire state of New Mexico. Based on this experience, he started a thorough research program in late 2003 to determine the prospects of exploration on the Colorado Plateau. Using a multifaceted approach, Liberty Star geologists, along with the help of a very talented geologic expert particularly familiar with these breccia pipes identified the breccia pipe targets that we have staked starting in the fall of 2004.
According to the U.S. Geological Survey, the breccia pipes in this region are of high grade compared to sediment hosted roll front deposits mined throughout the western US, with an estimated potential average grade for ore bearing pipes at about 0.7% to 0.8% uranium. This suggests that such pipes may contain mineral bodies of about 14 to 16 pounds or more of uranium per ton. At current prices this is approximately equal to 1 ounce of gold per ton. The pipes contain numerous metals in addition to uranium including copper, silver, vanadium, molybdenum, cobalt and nickel. The uranium mineralization however is by far the most economically important. Mines in this region have produced some 26 million pounds of uranium; some of these known ore bodies have contained as much as 55% uranium (1100 pounds per ton) in some samples.
Exploration at North Pipes is for high-grade uranium ore bodies that can be mined economically by underground methods. This area can be explored during the winter months by the Liberty Star exploration team.
Schematic cross section of a solution-collapse breccia pipe, showing the general distribution of uranium ore within the pipe. Nearly all primary ore confined to the breccia pipe: rarely, a little uranium ore is reported in relatively undisturbed beds outside the ring structure. Vertically, most primary ore is below the Coconino Sandstone and at the level of the Hermit Shale and the Esplanade Sandstone of the Supai Group.
For more information on Arizona Breccia Pipe’s, click on link below:
Wikipedia® Article on Arizona Breccia Pipe Uranium Mineralization
|Oxidized iron rich sandstone from a Liberty Star claim area. Spectrometer instrument displays anomalous radioactivity equivalent to at least 3 times normal background. || ||Altered hand specimens from Liberty Star claim area that are typical of oxidized rocks found within uranium collapse pipes. || |
East Silver Bell Porphyry Copper Project
East Silver Bell Porphyry Copper Project is within the Silver Bell Mining District located northwest of Tucson, Arizona. Asarco Mining LLC with joint venture partner Mitsui Mining of Japan currently operates open pit copper mines in the area. Asarco has a solvent extraction (SXEW) plant approximately 4 1/2 miles to the west of the East Silver Bell Project property line. Liberty Star’s property, within the same mining district, includes 26 unpatented lode mining claims covering a previously unrecognized porphyry copper center. Two mining companies had some interest in the area during the late 1990s but relinquished the ground despite revealing enriched copper in one hole and substantial amounts of leached capping in all other holes, an indicator for porphyry copper deposits. Stagnant copper prices contributed to the abandonment of the ground prior to the identification of any ore body. The claims currently are within the Ironwood National Monument, which was established after the claims were staked.
Management & Directors
Position: CEO, President, CFO, Chief Geologist & Board Chairman
Mr. James A. Briscoe, P. Geo., BS/MS Geology University of Arizona and Chairman of the Board, is one of the chief founders of Liberty Star Uranium & Metals Corp. Mr. Briscoe’s involvement in mineral exploration and discoveries spans over 40 years. He is a Registered Professional Geologist in the States of California and Arizona since 1969 and 1972 respectively. Credited with expanding porphyry copper ore reserves at Silver Bell, Arizona and identifying major gold deposits in the Randsburg District in California, he was also instrumental in the discovery of the large disseminated McDermitt open-pit mercury mine in Nevada. Mr. Briscoe co-discovered and co-owned the Wind Mountain gold-silver mine in Nevada. In Alaska, he identified the Big Chunk caldera and the copper-gold-moly potential continuation from the Pebble mine and alteration zone which is a twin of the Silver Bell zone in the Silver Bell caldera, Arizona. Mr. Briscoe was the first geologist to identify the Tombstone Caldera in 1988. Recently, he discovered a significant intrusion indicating multiple mineral occurrences under the Tombstone Arizona caldera. He has served as either an officer and or director of three other publicly trading exploration and development companies.
Dr. John M. Guilbert
Dr. John M. Guilbert currently holds the position of Professor Emeritus at the University of Arizona. Dr Guilbert is a world-renowned and award winning geologist & author. He is the co-developer of the Lowell-Guilbert porphyry copper model, and recipient of mining’s two most prestigious awards back to back (the R. A. F. Penrose Medal and the D. C. Jackling Award). Dr Guilbert has served as a director on two TSX Venture companies and now brings his extensive exploration experience to Liberty Star Uranium & Metals Corp.
Keith P Brill
Mr. Brill joined the board in December, 2009. He has been a management consultant with PA Consulting Group, Inc., a leading global consulting firm. Mr. Brill has provided Fortune 500 companies with consulting advice on topics including cost reduction, operational efficiency, and IT strategy. Mr. Brill received an International MBA from the Moore School of Business, University of South Carolina. He earned his B.S., magna cum laude, in Economics and Finance, minor in Spanish, from the South Carolina Honors College.
Mr. O’Heeron joined the board in September, 2012. Mr. O’Heeron leads an operational investment group which identifies early stage opportunities in the medical field with strong intellectual property positions. Through his 20+ years of medical product development experience, Mr. O’Heeron brings together the resources from strategic disciplines necessary to commercialize unique technologies. Prior to founding Advanced Medical Technologies LLC, Mr. O’Heeron founded NeoSurg Technologies, Inc. to develop a minimally invasive access system. As a result of his efforts, NeoSurg Technologies was successful in developing the T2000 Minimally Invasive Access System, the world leader in reposable surgical instrumentation. Mr. O’Heeron completed the sale of NeoSurg Technologies to CooperSurgical in 2005. Mr. O’Heeron graduated from Texas State University with a BS in Healthcare Administration and a minor in Business Administration. He received his Masters in Healthcare Administration from the University of Houston. Mr. O’Heeron currently holds 5 patents and has 4 patents pending.
Current authorized shares: 6,250,000,000
Outstanding shares: 2,042,571,027
(updated through 04/28/2017)
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