Tombstone Exploration Corporation Provides Update on Summer Drill Program - Assay Results Pending
Posted on: Thursday, 9 October 2008, 09:00 CDT
Tombstone Exploration Corporation (OTCBB: TMBXF) announced today it has successfully completed 2,593 feet of core drilling at its silver project in Tombstone. AZ. Six diamond drill holes (DDH) have been drilled, TEMC 101,102,103,104,105 and 106, to test the extension of the mineralization zones of the Bonanza and Santa Ana structures, both of which possess historical data from within the mining district. Both structures exhibit open ends at the south and north, as well down dip.
Drilling was performed by Layne Christensen Drilling Company during June through September, 2008. Holes were drilled as HQ diameter and using triple-tube technology, yielding a recovery over 90% in most instances. RQD is estimated at 45%, average.
Five out of the six DD holes intersected the projected targets at different levels at the south, central and north of the structures, while DDH TEMC 101 provided a great deal of information regarding the Bonanza structure which seems to be bent in an opposite direction in depth. This particular piece of information has been physically confirmed in the Bonanza mine workings where the structure becoming subvertical at 200 feet approximately, and then switches the dip to east, rather than dipping west as observed at the upper sectors of the shafts.
The following is a highlight summary of the geological logging of the drill holes.
TEMC 101 0-135' Ignimbrite 135-547' Sedimentary rock unit made up of quartzite and limestone, predominantly 547-552' Mn-oxides structure with additional Mnox stringers at hanging and foot walls 552-650' Predominantly, limestone, locally silicified 650-980' Predominantly, limestone, locally silicified, with patches of epidote and chlorite, containing strong pyrite content up to 10% in places TEMC 102 0-60' Overburden and feldspar porphyry dikes sedimentary rock units 60-145 Ore zone, mostly Mnox containing locally some secondary Ag minerals, as horn silver 145-225' Predominantly feldspar porphyry dikes 225-395' Limestone with minor ore stringers and veins Potential Santa Ana structure at 345-370' 395-408 Siltstone and limestone rock units interfingering Minor Mnox stringers at different levels TEMC 103 0-65' Quartzite unit, locally cut by quartz veinlets, exhibiting comb crystals and open spaces and symmetry 65-185' Various ore zones, associated with the Santa Ana Structure, hanging and foot walls. Minor ignimbrite bed intercalated 185-212' Limestone, trace Mnox stringers TEMC 104 0-180' Predominantly quartzite and limestone rock units locally intersected by feldspar porphyry dikes 180-240' Potential Bonanza structure with minor ores stringers associated at hanging and foot walls 240-290' Sedimentary series with minor feldspar porphyry dikes 290-311' Potential Santa Ana structure and associated hanging and foot walls a ore stringers TEMC-105 0-195' Overburden at upper sector and sedimentary series, with minor feldspar porphyry dikes 195-225' Minor ore intercepts 225-250' Siltstone 250-393' Predominantly, intraformational breccia and/or conglomerate, limey-rich 393-420' Minor ore zone associated with Santa Ana Structure 420-460' Mostly, limestone, Trace Mnox in places TEMC 106 0-107' Predominantly, intraformational breccia and/or Conglomerate, limey-rich 107-115' Minor ore intercept, mostly Mnox stringers 115-124' Quartzite 124-128' Minor ore intercept, mostly Mnox stringers 128-140' Quartzite
At the Tombstone silver district, manganese oxides are the ore carrier hosts. TEMC 101 and 102 (upper sector, 20-140') have assays for 50 elements, and TEMC 102 was re-ran by four acid near digestion for silver. All the rest of core sample results are pending from ALS Chemex, where they were sent for assay.
A new mineralized structural corridor has been discovered between the State of Maine and Merrimac veins at the southern portion of the property. Such a structural corridor is currently undergoing detailed mapping and sampling. The corridor extends for over one mile, and locally exhibits 80-100' width with some feldspar porphyry dikes in between.
Claudia Stone, Geologist of SRK Engineering is scheduled to do a site inspection of the project on October 13.
Alan Brown, President and CEO of Tombstone Exploration remarked, "The assay results have been slow to receive but we are encouraged by the results so far and will report additional results as they become available."
Tombstone Exploration Corporation (TMBXF) is structured and positioned to capitalize on today's increasing demand and prices for precious metals and base metals such as copper, lead and zinc. Tombstone Exploration Corporation has the mineral rights to approximately 13,500 acres of historical mining land in the areas around Tombstone, Arizona. The Company is the largest landholder in the Tombstone mining district. Through expansion, Tombstone Exploration will acquire new properties, as well as integrate the extraction of precious and base metals. The goal is to produce metals and minerals below standard industry costs.
For more information on Tombstone Exploration Corporation, please visit our web site at www.tombstonemining.com.
FORWARD-LOOKING STATEMENTS
Statements contained herein that are not historical facts may be forward-looking statements within the meaning of the Securities Act of 1933, as amended. Forward-looking statements include statements regarding the intent, belief or current expectations of the Company and its management. Such statements are estimates only, as the Company has not completed the preparation of its financial statements for those periods, nor has its auditor completed the audit of those results. Actual revenue may differ materially from those anticipated in this press release. Such statements reflect management's current views, are based on certain assumptions and involve risks and uncertainties. Actual results, events, or performance may differ materially from the above forward-looking statements due to a number of important factors, and will be dependent upon a variety of factors, including, but not limited to Tombstone Exploration Corporation's ability to obtain additional financing. Tombstone Exploration Corporation undertakes no obligation to publicly update these forward-looking statements to reflect events or circumstances that occur after the date hereof or to reflect any change in Tombstone Exploration Corporation's expectations with regard to these forward-looking statements or the occurrence of unanticipated events. Factors that may impact Tombstone Exploration Corporation's success are more fully disclosed in Tombstone Exploration Corporation most recent public filings with the U.S. Securities and Exchange Commission.
CONTACT: Tombstone Exploration Corporation Alan M. Brown, President Email Contact 480-305-4507 Investor Relations: The Eversull Group, Inc. Jack Eversull 972-378-7917 972-378-7981 (fax) Email Contact
SOURCE: Tombstone Exploration
Source: MARKET WIRE
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