Tombstone Exploration Corporation Provides Update on Summer Drill Program - Assay Results Pending
October 09, 2008
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.
