EXTENSIVE GOLD IN SOILS TARGET IDENTIFIED AT MOMBUCA GOLD PROJECT, SE BRAZIL



Similar documents
MOMBUCA GOLD PROJECT: STRONG GOLD GRADES FROM TRENCHING CONFIRM PRESENCE OF STACKED QUARTZ VEIN SYSTEM

CENTAURUS DELIVERS MAIDEN 77Mt INFERRED RESOURCE FOR JAMBREIRO IRON ORE PROJECT, BRAZIL

FINAL FURTHER HIGH GRADE COPPER RESULTS IN SURFACE FLOAT SAMPLES AT NAKRU

For personal use only

Falcon Minerals Ltd ACN Company Announcement

Australian Stock Exchange Limited Company Announcements NO. OF PAGES : (5) Level 10, 20 Bond Street SYDNEY NSW 2000

JACQUES GOLD PROSPECT RETURNS 37.7g/t. Re-assay of 1m samples from initial drilling program at Jacques returns gold grades of up to 37.

Exploration Update - Corunna

QUARTERLY ACTIVITIES REPORT FOR THE PERIOD ENDED 30 SEPTEMBER 2015

For personal use only

HIGH GRADE GOLD DRILL RESULTS MT EGERTON PROJECT

ASX Announcement (ASX: HMX)

ST GEORGE ACQUIRES NICKEL SULPHIDE PROJECTS

ASX ANNOUNCEMENT Date: 3 February 2016 Number: 449/030216

Queensland Mining Corporation L I M I T E D. Maiden JORC Resources Estimate for Horseshoe Copper Deposit, Duck Creek, South Cloncurry District

New Cascade drill results and Ulanzi drill update

Quarterly Report Highlights. Ulysses Gold Project, Western Australia. Viking Gold Project, Western Australia

Pacifico set to commence drilling at Borroloola West Project and co-funding secured from NT Government

MORE STRONG NICKEL HITS FOR MINCOR AS KAMBALDA DISCOVERIES GROW

NEW DRILLING RESULTS FROM THE CLONCURRY PROJECT

JUNE 2015 QUARTERLY REPORT

DRILLING COMMENCES AT REMBRANDT GOLD PROJECT

GEOLOGICAL REINTERPETATION LEADS TO MAJOR DRILL PROGRAM AT JUPITER

Core : CXO. and. Uranium Session SAREIC Conference Adelaide 13th April 2015

IP survey expands gold prospectivity at Dixon, Doolgunna Marymia Project

BOADICEA RESOURCES. Additional Conductors Identified at Symons Hill in the Fraser Range from VTEM max Survey.

For personal use only

CHALICE GOLD MINES AND SUB SAHARA RESOURCES ANNOUNCE PROPOSED MERGER TO CONSOLIDATE AND FUND ERITREAN GOLD PROJECT

QUARTERLY ACTIVITIES REPORT

New Lithium Project includes largest tin tantalum mine in NT HIGHLIGHTS. Core has extended its lithium focus in the prospective Bynoe pegmatite field

HIGH GRADE DRILL RESULTS CONTINUE AT THE KYLYLAHTI MINE

VERY FAVOURABLE CYANIDE LEACH RESULTS FROM NAMDINI

For personal use only

HIGH GRADE TUNGSTEN-TIN LODES IDENTIFIED AT REDMOOR

For personal use only

f or the P ROJECT Agreement with copper-gold Bluebird. comprises a 1.6 mineralisation are often discordant to the Proterozoic deposits found in HIG

COPPER DISCOVERY GROWS AT TURKEY CREEK

For personal use only

QUARTERLY ACTIVITY REPORT FOR THE PERIOD ENDED 31 st December 2015

ALCYONE REPORTS JORC SILVER RESOURCES

RIDDARHYTTAN RESOURCES PRESS RELEASE August 11, 2003

QUARTERLY ACTIVITIES REPORT FOR PERIOD ENDED 30 SEPTEMBER 2015

Porphyry Copper Potential Confirmed By Field Reconnaissance in Peru

Expansion drilling at Mt Marion Lithium Project yields positive results

Chalice advances gold exploration initiatives in Australia and Canada

De Grey Mining Ltd. Wingina Deeps Drilling Commenced (Turner River Project) Highlights. Turner River Unlocking Shareholder Value

Crusader Confirms Lithium Potential at Manga and Signs MOU with Lepidico Ltd to Exploit Lithium in Brazil

HORSE WELL GOLD PROJECT W.A

EXPLORATION TONY HOUSTON Head of Exploration

AIM: KEFI 6 March KEFI Minerals Plc. ( KEFI or the Company ) SAUDI ARABIAN EXPLORATION AND DEVELOPMENT UPDATE

New technology and new approach uncovers new opportunities in WA s Fraser Range

DRILLING INTERSECTS WIDE ZONES OF GOLD MINERALISATION AT DUSK TIL DAWN

MULTIPLE NEW GOLD ZONES DISCOVERED IN REGIONAL EXPLORATION DRILLING AT DALGARANGA

DIAMOND DRILLING UNDERWAY AT MESA DE PLATA

QUARTERLY REPORT HIGHLIGHTS. Three Months Ending: 30 September 2012 BUTCHERBIRD MANGANESE:

December, 2015 Quarterly Report First Graphite makes strong progress in strategy to be major supplier of high-grade graphite and graphene in 2016

Further Basement Gold Results Confirm Yamarna Gold Potential

HIGH IMPACT EXPLORATION CONTINUES AT EAST LAVERTON

DRILLING COMMENCES AT STRONG WINDSOR DHEM TARGET

EXPLORING WORLD CLASS MINERAL FRONTIERS

Leapfrog : new software for faster and better 3D geological modelling

ST GEORGE COMMENCES MAJOR NICKEL SULPHIDE DRILLING CAMPAIGN. High impact drilling campaign has commenced at the East Laverton Project

December 2014 QUARTERLY ACTIVITIES REPORT

NEW SILVER ZONE FOUND NORTH OF MESA DE PLATA

Akjoujt South Project: Drilling Update and Ground Magnetic Anomalies Identified

NORTH PORTIA RESOURCE SUPPORTED BY NEW DRILLING RESULTS

For personal use only

Significant Nickel Sulphides at Killaloe JV Project

Tsunsten and Tin Imprints in South East Asia

SILVERCORP INTERCEPTS 18.8 METRES TRUE WIDTH GRADING 368 G/T SILVER AND 1.78 PERCENT LEAD AT THE LM MINE WEST, YING MINING DISTRICT, CHINA

MRL about to be one of world s highest-grade graphite producers

Quarterly Report for the Quarter Ended 31 December 2015

MASSIVE NICKEL SULPHIDE TARGET AT WINDSOR

For personal use only

Five targets advanced to drill-ready stage ahead of drilling anticipated to commence during the September 2013 Quarter.

MAJOR NEW COPPER EXPLORATION PROGRAM UNDERWAY IN NORTH QUEENSLAND

TIGER RESOURCES LTD ACN

Exploration and Development Activity

TORONTO STOCK EXCHANGE COMPANY MANUAL APPENDIX B DISCLOSURE STANDARDS FOR COMPANIES ENGAGED IN MINERAL EXPLORATION, DEVELOPMENT & PRODUCTION

For personal use only

SILVERCORP REPORTS RESULTS FROM ITS 2012 EXPLORATION PROGRAM AT THE SGX MINE, YING MINING DISTRICT, CHINA

Ruby Joint Venture commenced to explore Montepuez East Ruby Project in Mozambique Kroussou Zinc-Lead Project in Gabon advancing

Exploration. Exploration methods

Cannon Mine on Track

For personal use only

December 2015 Quarterly Activities Report

Mining Indaba Presentation. Capetown, South Africa 8 th 10 th February 2016

Highlights of selected high-grade mineralized zones exposed in drift tunnels include:

TURKEY CREEK PIT OPTIMISATION STUDY ADDS 2 YEARS MINE LIFE TO THE LITTLE EVA PROJECT AT CLONCURRY

Barkly Phosphate Project Tenement Granted

Western Australia - A1 Gold and The Walhalla Project

BUILDING A COPPER COMPANY IN BRAZIL. PDAC Feb TORONTO

For personal use only. MRV Metals Launch February 2016

For personal use only

For personal use only

DALGARANGA MINERAL RESOURCE GROWS TO OVER ONE MILLION OUNCES

REPORT OF WORK GUIDELINES

MAXIMUS RESOURCES LIMITED QUARTERLY REPORT

NEWS RELEASE NOT FOR DISSEMINATION IN THE UNITED STATES OR FOR DISTRIBUTION TO U.S. WIRE SERVICES

Highlights from Target H HDD_005 include: 38.5 metres at 1.58% copper from 8.5 metres including;

Transcription:

9 July 2015 EXTENSIVE GOLD IN SOILS TARGET IDENTIFIED AT MOMBUCA GOLD PROJECT, SE BRAZIL Open ended target zone up to 1.5km long identified Key Points Prospectivity of Centaurus recently secured Mombuca Project in SE Brazil significantly upgraded by recent geochemical sampling program. Gold values in soils up to 0.8g/t Au returned over an extensive, open ended zone 1.5km long and varying in width from 50 150m. Rock chip samples from mineralised quartz veins in the target area returned grades of up to 9.3g/t Au with historical face sampling of adits in the area returning intercepts of up to 6m @ 5.3g/t Au. The newly defined zone is coincident with a prominent magnetic low structure within a broader regional magnetic anomaly which has dimensions of 4.8km by 3.5km. Several drill targets are already evident from the soil results received to date, coupled with detailed geological mapping and the identification of auriferous quartz veins. Centaurus Metals (ASX Code: CTM) is pleased to announce that it has significantly enhanced the gold exploration potential of its recently secured Mombuca Gold Project in the State of Minas Gerais, southeastern Brazil after receiving highly encouraging results from an initial low cost soil sampling program. Assay results from the sampling returned gold values in soils up to 0.8 g/t Au, with the program successfully defining an open ended zone extending over a strike length of 1,500m and with widths varying from 50m to 150m. The results demonstrate continuity across the main target units and correlate well with the mapping of the alteration zones completed to date. Locally, the soils results are a good indicator of the potential widths of the mineralized system. Rock chip samples from mineralized quartz veins in the target area returned results of up to 9.3g/t Au and historical face sampling of the adits located in the area has returned gold intercepts of up to 6m at 5.3g/t Au (see Figure 1). Although the adits are located in the south western zone of the sampled area, it is the north eastern target zone that is proving to be quite exciting at this early stage of exploration. Gold anomalies in soils are stronger in this zone, and are coincident primarily with strong sericite carbonate alteration of the mafic schists as well as the talc chlorite hydrothermal alteration present in the ultra mafic schist and auriferous quartz veins. In the north east zone multiple quartz veins up to 20m wide and striking over 50m have been identified at surface. The quartz veins often host limonite, iron oxides, boxworks after weathered sulphides and occasional fresh sulphides (mainly pyrite). Visible gold has been identified in some of the veins. Australian Office Brazilian Office ASX: CTM Centaurus Metals Limited Centaurus Brasil Mineração Ltda ACN 009 468 099 Level 3, 10 Outram St Rua Pernambuco, 1.077 9 o andar Funcionários office@centaurus.com.au WEST PERTH WA 6005 Belo Horizonte MG CEP: 30.130 151 Telephone: +61 8 9420 4000 BRAZIL

To date rock chip samples taken from these veins identified at surface have included assay results of 9.30g/t Au, 3.16g/t Au, 3.10g/t Au and 1.98 g/t Au (all results are presented in Table 2). The soils program consisted of 206 soil sample assays and covered the preliminary exploration target zone, which is a metavolcanic sedimentary sequence consisting of quartzites, iron formations (itabirite), mafic and ultra mafic schists. The sequence dips shallowly to the east southeast, in the direction of the untested regional magnetic anomaly (Figure 2). Figure 1: Mombuca Soil Sample Results Interestingly, the anomalous soil zone identified from the current soils program is coincident with a prominent magnetic low structure within the broader regional magnetic anomaly (Figure 2). The magnetic low response may be associated with either hematite rich zones caused by hydrothermal upgrade of the itabirite or iron oxide depleted zones due to sulfidation of the itabirite. Both are key target features for future gold exploration. The Mombuca Project is located in the southern segment of an extensive gold palladium belt roughly 100km north east of the State capital of Belo Horizonte and is located immediately to the east of the Company s 100% owned Itambé tenement. This belt is roughly defined by a series of north south trending lineaments of thrust faults of Brasiliano orogeny (~0.6 Ga), coincident with occurrences of gold palladium platinum mineralisation, artisanal workings and, in some cases, iron ore and gold mines (Itabira, Gongo Soco). The Mombuca tenement hosts a regionally significant magnetic anomaly as shown in Figure 3. Page 2

Figure 2: Mombuca Project Gold Occurrences on Regional Aeromagnetic Image The Mombuca Exploration Program Based on these the soil results, coupled with detailed geological mapping and the identification of the auriferous quartz veins, several drill targets are already evident. The Company is continuing to progress its lowcost exploration activities on the Mombuca Project, underpinned by funding secured via a recently completed share placement and the sale of the Candonga DSO Project to a private Brazilian group (see ASX Announcement 8 July 2015). This low cost work includes continued detailed geological surface mapping of the target sequence and the previously unmapped areas of the Mombuca tenement. An extension of the soil geochemical sampling program is already underway and a trench program across the auriferous quartz veins has been planned. A stream sediment sample and pan concentrate gold colour count program is planned for the larger area. Ground magnetics and IP survey work programs are also planned as they will be important in improving the Company s geological understanding of the regional scale structures within the project area. The magnetic anomaly on the newly acquired Mombuca tenement is regionally significant. It has dimensions of 4.8km by 3.5km and is one of the strongest anomalies in the region. It is of a similar scale to, and located just 20km north of, the world class Itabira Iron Ore mine (Figure 3), which has been operating for over 60 years. Centaurus Managing Director, Darren Gordon, said the Mombuca Project was shaping up as an exciting early stage gold exploration opportunity for the Company, with initial soil sample and rock chip assay results from the newly identified surface veining providing significant encouragement. Page 3

These are very good results for early stage gold exploration with grades of up to 0.8g/t from geochemical sampling in soils coinciding with high grade rock chip results and historical face sampling results, he said. All the indications are that this is a large mineralised system which coincides with an important regional magnetic feature. By any measure this is an exciting early stage exploration opportunity and with the small equity raise completed earlier in the week together with the sale of the Candonga Project, we intend to pursue further gold exploration activities as soon as we can. Released by: Nicholas Read Read Corporate M: +61 419 929 046 ENDS Competent Person Statement On behalf of: Darren Gordon Managing Director Centaurus Metals Limited T: +618 9420 4000 The information in this report that relates to Exploration Results is based on information compiled by Roger Fitzhardinge who is a Member of the Australasia Institute of Mining and Metallurgy. Roger Fitzhardinge is a permanent employee of Centaurus Metals Limited. Roger Fitzhardinge has sufficient experience which is relevant to the style of mineralization and type of deposit under consideration and to the activity which they are undertaking to qualify as a Competent Person as defined in the 2012 Edition of the Australasian Code for Reporting of Exploration Results, Mineral Resources and Ore Reserve. Roger Fitzhardinge consents to the inclusion in the report of the matters based on their information in the form and context in which it appears. Page 4

Figure 3: Mombuca Project Au Pd Belt of Minas Gerais; Mombuca and Itabira Regional Aeromagnetics Image Figure 4 Quartz vein with Limonite pseudomorphs after pyrite with boxworks (674377mE, 7851107mN). Page 5

Table 1: Mombuca Project Historical Face Sampling of Adits Adit Number East North RL Dip Azimuth Intersection IBP GA 0003 673807 7850604 975 0 160 8m @ 1.8 g/t Au incl. 2m @ 5.6 g/t Au IBP GA 0004 673770 7850578 987 0 110 6m @ 5.3 g/t Au incl. 2m @ 9.6 g/t Au IBP GA 0009 673717 7850501 935 0 125 4m @ 3.4 g/t Au incl. 2m @ 6.4 g/t Au Table 2: Mombuca Project Rock Chip samples Field Sample* East North RL Sample Description Au (ppb) IBP RO 0038 674292 7851099 877 Quartz vein within iron oxides 40 IBP RO 0039 674308 7851100 870 Quartz vein with pyrite and iron oxides 9300 IBP RO 0040 674419 7851120 829 Low grade Itabirite < 5 IBP RO 0041 674419 7851120 829 Low grade Itabirite < 5 IBP RO 0042 674504 7851124 803 Quartz vein with iron oxides 3195 IBP RO 0043 675275 7851164 858 Soil < 5 IBP RO 0044 671730 7849169 751 Soil 20 2400052 675189 7849112 857 Quartz vein within iron oxides 6 2400053 673500 7850924 921 Recrystallized quartz vein with fuchsite <5 674215 7851124 886 Mafic schist with sericite, carbonate, pyrite and 2400054 limonite 9 2400055 674273 7851147 883 Talc Chlorite schist with boxworks (magnetite) 5 674359 7851136 860 Talc Chlorite schist with boxworks (magnetite) 2400056 and sericite 6 2400057 674377 7851122 859 Quartz vein with pyrite and limonite 1980 2400058 674375 7851103 865 Quartz vein with pyrite, limonite and visible gold 3160 *Only samples analysed for Au are shown Page 6

APPENDIX A TECHNICAL DETAILS OF THE MOMBUCA PROJECT, JORC CODE, 2012 EDITION TABLE 1 SECTION 1 SAMPLING TECHNIQUES AND DATA Criteria Sampling techniques Drilling techniques Drill sample recovery Logging Sub sampling techniques and sample preparation Quality of assay data and laboratory tests Verification of sampling and assaying Location of data points Data spacing and distribution Orientation of data in relation to geological structure Commentary Soil samples were collected at 25m intervals along 100m spaced grid lines. Surface material was first removed and sample holes were dug to roughly 30cm depth. A 4 5kg sample was taken from the subsoil. The sample was placed in a plastic sample bag with a sample tag before being sent to the lab. The adits were sampled by continuous channel sampling along the mineralised quartz vein (15 30cm width). Chips were taken from the quartz vein and host rock approximately 20cm either side of the vein, results are shown in Table 1. 14 surface rock chip / soil samples were collected from in situ outcrops and rolled boulders for chemical analysis. Results are shown in Table 2. Additional samples have recently been taken by the Company and are awaiting assay results. There is historical drilling on one of the Mombuca tenements for iron ore. These drill results are not referred to in this announcement. No drilling of the gold targets has been conducted. No drilling was conducted. All outcrop and soil sample points were registered and logged in the Centaurus geological mapping point database. All rock chip and soil samples were sent to the laboratory without any field preparation. Analysis of the soil samples was completed at ALS Laboratories. Samples are dried at 100⁰C and crushed and screened to 80 mesh. The pulp is quartered and an aliquot of 50g is sent for chemical analysis. Chemical analysis was completed for gold by fire assay and ICP for limit of 0.001ppm as well as multi element using ICP. For the historical adit sample an ore grade sample metallic screen fire assay was applied. ALS and SGS laboratories insert their own standards at set frequencies and monitors the precision of the XRF analysis. These results reported well within the specified 2 standard deviations of the mean grades for the main elements. Additionally the labs perform repeat analyses of sample pulps at a rate of 1:20 (5% of all samples). These compare very closely with the original analysis for all elements. Laboratory procedures are in line with industry standards. To date no QAQC samples have been inserted by Centaurus for this project. All samples were collected by Centaurus field geologists. All assay results were verified by alternative Company personnel and the Competent Person before release. The survey grid system used is SAD 69 23S. This is in line with Brazilian Mines Department requirements. All sample and mapping points are collected using a Garmin hand held GPS. Soil samples were collected with a spacing of 100m x 25m. Sample spacing was deemed appropriate for geochemical studies but should not be considered for Mineral Resource estimations. The extent and orientation of the mineralisation was interpreted based on field mapping and historical workings. Sample orientation is perpendicular to the main stratigraphic sequence along which mineralisation exists. Page 7

Sample security Audits or reviews All samples are placed in pre numbered plastic samples bags and then a sample ticket is placed within the bag as a check. Bags are sealed and placed in larger bags (10 samples per bag) and then transported by courier to the ALS or SGS laboratories in Belo Horizonte. Sample request forms are sent with the samples and via email to the labs. Samples are checked at the lab and a work order is generated by the lab which is checked against the sample request. No audit or review has been conducted on the project to date. SECTION 2 REPORTING OF EXPLORATION RESULTS Criteria Commentary Mineral tenement and land tenure status Exploration done by other parties Geology The Mombuca Project consists of the tenements DNPM 832.316/2005 (application for Mining Lease), 833.133/2014 (Exploration Licence) and 830.668/2015 (Exploration Licence Application). Granted Exploration Leases have three years of exploration rights that may be extended for a further three years. The tenement 833.133/2014 is part of the Terrativa Option Agreement. Centaurus will pay a production bonus royalty of US$1.5 million to the Vendor on first product sold from this or any tenement included in the Agreement. All mining projects in Brazil are subject to a CFEM royalty, a government royalty of 2% on iron ore revenue (less taxes) and 1% on gold revenue (less taxes). Landowner royalty is 50% of the CFEM royalty. The project is located circa 15km from the federal wilderness park of the Serra do Cipo. The project is outside the buffer zone and exploration and mining is permitted with appropriate environmental licences as held by Centaurus. Historically the 832.316/2005 tenement area was explored for iron ore by Centaurus. Exploration for gold on the 832.316/2005 tenement was originally restricted to the adits that were worked by grimpeiros in the 1800s. Centaurus conducted some follow up mapping and sampling of the gold adits in 2009 that are reported in this announcement. There is no known evidence of exploration for gold or iron ore done by other parties on the 833.133/2014 tenement. The Mombuca Project is located within the Espinhaço Super Group (Mesoproterozoic). The target units are part of a metavolcanic sedimentary sequence of quartzite, ferruginous quartzite, itabirite, mafic and ultramafic schists. This sequence has not been identified in the Brazilian Geological Survey (CPRM) regional mapping and as such it is not fully understood if the sequence is in fact part of the Espinhaço Super Group. The sequence is emplaced in Archean gneissic basement. The sequence generally dips shallowly to the south east and has been affected by multiple phases of folding. Some late stage thrust faulting is apparent throughout the project area. Later stage mafic intrusives (gabbro and dolerite) are also present throughout the project area. The auriferous quartz veins identified in the adits are generally hosted by the mafic schists and run parallel to the foliation. Iron oxide and sericite alteration is present within the host rock. The host rocks have undergone intense weathering locally. Sericite, carbonate and talcchlorite alteration is present in the mafic and ultra mafic schists. The host rocks have been further softened through intense weathering process which has further concentrated the iron oxides through the weathering of sulphides. The vein orientation varies slightly across the three gold adits but is generally orientated SW NE with varying plunge orientations to the ESE. The itabirite is fine medium grained and composed of quartz, hematite, magnetite, goethite with minor mica and clay minerals. Itabirite thickness varies from 5 to 20 metres and is more compact at depth. Itabirite grade is between 35 50% Fe. No high grade lenses have been identified to date. Page 8

Criteria Drill hole Information Data aggregation methods Relationship between mineralisation widths and intercept lengths Commentary There is historical drilling on one of the Mombuca tenements for iron ore. These drill results are not referred to in this announcement. No drilling of the gold targets has been conducted. No cut offs have been applied in reporting of the soil sampling exploration results. No aggregate intercepts have been applied in reporting of the soil sampling exploration results. No drilling was conducted. Diagrams Refer to Figures 1 4. Balanced reporting Other substantive exploration data Further work All Exploration Results received by the Company to date are included in this report. Historical geological mapping was carried out by Centaurus geologists. Interpretation of Regional Aeromagnetic data that was collected by state agency CODEMIG was completed by geophysics from Intergeo. The Company plans to complete further detailed geological mapping, stream sediment sample and pan concentrate gold colour count program and a ground magnetics survey on 200m N S line spacings with measurements every 10m. Based on targets generated from these programs, the Company will consider an initial exploration drilling program. Page 9