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BYERS BROOK 


General

The Byers Brook Property is located in Colchester County, Nova Scotia and consists of Mineral Exploration Licence 09388 which contains 27 claim units (1080 acres or 437 hectares). 


The Property is located within a geological environment that is favourable for the discovery of Iron-Oxide-Copper-Gold (IOCG). Other types of mineralization include Rare Earth Element (REE) mineralization (MacHattie, 2010) and Volcanogenic Massive Sulphide (VMS). 


Geology

The Byers Brook claim is underlain by two Devono-Carboniferous Formations, namely the Byers Brook Formation (BBF) & the Diamond Brook Formation (DBF) of the Fountain Lake Group (FLG) that have excellent potential for Carlin type volcanogenic/epithermal Gold ± base metals deposits. The Byers Brook Formation has also been shown to host significant Rare Earth Element (REE) mineralization in other adjacent areas (Magnum Resources claims, NSDNR information).


Rocks of the Byers Brook Formation (BBF) form a general northwest-southeast trending belt of ignimbrites, rhyolitic lava flows, tuffs and minor volcanic sediments that are exposed in both the southern and northern portions of the claim. The conformably overlying Diamond Brook Formation (DBF), which consists of basaltic flows, associated dikes, intrusions, siltstones, wackes and polymictic conglomerates, are exposed in the northern, central, and southern portions of the property, with conformable contacts with the underlying Byers Brook Formation. 


Although poorly exposed along the contact, quartz wacke has been noted concordant and conformably between the two units (Donohoe and Wallace, 1982). Nova Scotia Department of Mines & Energy Open File Release 89-007; Geochemical Analysis of Bulk Stream Sediment Samples from Northern Nova Scotia (Parts of NTS sheets 11E, 11F, 11G, 11J, 11K and 21H) Mills, R.F., 1989 show anomalous gold values in stream sediments from streams that drain this geological contact zone (DBF & BBF).

Historical Exploration

In 1990, Seabright Explorations Incorporated conducted stream sediment and rock outcrop sampling in the general area and although they found visible gold grains in stream sediments they did not do any follow up work. Selected quotes from their Report include: “Compilation of government and industry stream geochemical results in early 1989 suggested that drainages with headwaters in the Byers Brook Formation support copper, lead, zinc, molybdenum, silver and gold anomalies. In the fall of 1989, Seabright focused a reconnaissance stream geochemistry and prospecting program to evaluate these drainages   Most of the streams draining the contact area of the Byers Brook formation with the Diamond Brook Formation ("contact-zone") have anomalous gold in the sediments.” (Seabright Explorations Incorporated, Assessment Report ME 1990-165) 


In 2004, Cobequid Gold Corporation Limited did stream sediment and rock outcrop sampling in the general area, and although they found visible gold grains in stream sediments their funding ran out before they located its bedrock source (pers. com. Avard Hudgins). (Cobequid Gold Corporation Limited, Assessment Report ME 2004-092 & ME 2004-115) 


Trevor MacHattie Ph.D. (Geologist, Nova Scotia Department of Natural Resources - NSDNR):  It is a site of possible economic significance. At this location you will find a zone of very well developed silica alteration within flow banded rhyolite of the Byers Brook Formation. Interbedded with the rhyolite are pyroclastic flows and amygdaloidal basalt”.  Stratigraphically it's thought that this sequence is quite close to the top of the Byers Brook Formation, just below the overlying Diamond Brook Formation. Although most of the alteration and its attending pyrite mineralization appear related and confined to the rhyolite, it is clear that the alteration overprints the mafic flows as well.


The location of an historic abandoned exploration mine shaft obtained from the NSDNR database is within this same area (Map 2) although what is thought to be a collapsed, man-made adit (tunnel) has been discovered on the west bank of Byers Brook on the NSU property. 

Mineral Potential

A recent (October 24, 2011) announcement and presentation by Dr. Trevor MacHattie at the Nova Scotia Geology Matters mining conference identified a discovery of Visible Gold in altered basalts of the Diamond Brook Formation. This discovery will have a significant positive impact on the exploration potential of Byers Brook and is extremely important because it indicates a lode (bedrock) source of gold. 


The location of the discovery is only 600 metres away from NSU’s Byers Brook northeast claim boundary on un-staked ground. This new information has resulted in the Department of Natural Resources to affect a Temporary Closure of the un-staked ground until January 16, 2012 when it will be re-opened for competitive staking. 


This is very significant news for NSU as a large part of Licence 09388 is composed of identical rock formation in close proximity to the gold discovery zone. This information, in addition to the historical stream visible gold in the area greatly enhances its exploration potential. 


Summary

Exploration Licence 09388 is underlain by two Devono-Carboniferous Formations, namely the Byers Brook Formation (BBF) & the Diamond Brook Formation (DBF) of the Fountain Lake Group (FLG) that have excellent potential for Carlin type volcanogenic/epithermal Gold ± base metals deposits. The Byers Brook Formation has also been shown to host significant Rare Earth Element (REE) mineralization in other adjacent areas (Magnum Resources claims, NSDNR information). 

In 2004, Cobequid Gold Corporation Limited did stream sediment and rock outcrop sampling in the general area, and although they found visible gold grains in stream sediments their funding ran out before they located its bedrock source (pers. com. Avard Hudgins). (Cobequid Gold Corporation Limited, Assessment Report ME 2004-092 & ME 2004-115) There is about 7 km of this prospective contact zone (BBF & DBF) contained with the boundaries of Exploration Licence 09388 (Map 2).

The location of an historic abandoned exploration mine shaft obtained from the NSDNR database is within this same area (Map 2). According to NSDNR staff, no historical data has been uncovered regarding the shaft, and verification of its exact location is still pending, although what is thought to be a collapsed, man-made adit (tunnel) has been discovered on the west bank of Byers Brook on the NSU property.Nova Scotia Department of Mines & Energy Open File Release 89-007; Geochemical Analysis of Bulk Stream Sediment Samples from Northern Nova Scotia (Parts of NTS sheets 11E, 11F, 11G, 11J, 11K and 21H) Mills, R.F., 1989 show anomalous gold values in stream sediments from streams that drain this geological contact zone (DBF & BBF).

In 1990, Seabright Explorations Incorporated conducted stream sediment and rock outcrop sampling in the general area and although they found visible gold grains in stream sediments they did not do any follow up work.Selected quotes from their Report include: “Compilation of government and industry stream geochemical results in early 1989 suggested that drainages with headwaters in the Byers Brook Formation support copper, lead, zinc, molybdenum, silver and gold anomalies. In the fall of 1989, Seabright focused a reconnaissance stream geochemistry and prospecting program to evaluate these drainages.

“Mapping, prospecting and stream sediment sampling indicates the claims to the northwest are the most interesting for continued gold exploration (NOTE: This would include the ground covered by Licence 09388). Most of the streams draining the contact area of the Byers Brook formation with the Diamond Brook Formation ("contact-zone") have anomalous gold in the sediments.” (Seabright Explorations Incorporated, Assessment Report ME 1990-165).  The conformably overlying Diamond Brook Formation (DBF), which consists of basaltic flows, associated dikes, intrusions, siltstones, wackes and polymictic conglomerates, are exposed in the northern, central, and southern portions of the property, with conformable contacts with the underlying Byers Brook Formation.  Although poorly exposed along the contact, quartz wacke has been noted concordant and conformably between the two units (Donohoe and Wallace, 1982).  Rocks of the Byers Brook Formation (BBF) form a general northwest-southeast trending belt of ignimbrites, rhyolitic lava flows, tuffs and minor volcanic sediments that are exposed in both the southern and northern portions of Exploration Licence 09388 (Map 1). 

A very recent (October 24, 2011) announcement and presentation by Dr. Trevor MacHattie at the Nova Scotia Geology Matters mining conference identified a discovery of Visible Gold (VG) in altered basalts of the Diamond Brook Formation. This discovery will have a significant positive impact on the exploration potential of NSU Licence 09388 and is extremely important because it shows a lode (bedrock) source of Gold. The location of the discovery is only 600 metres away from NSU’s Byers Brook northeast claim boundary on un-staked ground. This new information has resulted in the Department of Natural Resources to affect a Temporary Closure of the un-staked ground until January 16, 2011 when it will be re-opened for competitive staking. This is very significant news for NSU as a large part of Licence 09388 is composed of the same rock types, and in close proximity to the Gold discovery zone. This information, added to the historical stream sediment VG anomalies on the Licence greatly enhances its exploration potential. 

To conclude, along with the REE potential of the Byers Brook Formation, there is ample evidence that a volcanogenic/epithermal gold deposit could be found in the area of Licence 09388.

References

 

MacHattie, T.G. 2010 Nature of Rare Earth Element Mineralization in the Northeastern Cobequid Highlands [Abstract], Nova Scotia Department of Natural Resources, Report ME 2010-002, 2010

www.gov.ns.ca/natr/meb/data/pubs/10re02/10re02_09.pdf

 

Geochemical Analyses of Bulk Stream Sediment Samples from Northern Nova Scotia [Parts of NTS Sheets 11E, 11F, 11G, 11J, 11K and 21H], by Mills, R F, Nova Scotia Department of Mines and Energy, Open File Report ME 1989-007, 1989, 367 page(s), 8 map(s).

 

Donohoe and Wallace, 1982

Geological Map of the Cobequid Highlands, Colchester, Cumberland and Pictou Counties, Nova Scotia, Sheet 1 of 4 [21H/07][1:50 000], by Donohoe, H V, Jr, Nova Scotia Department of Mines and Energy; Wallace, P I, Nova Scotia Department of Mines and Energy, Map ME 1982-006, 1983, 0 page(s), 1 map(s

www.gov.ns.ca/natr/meb/download/mg/map/htm/map_1982-006.asp

 

 

Seabright Explorations Incorporated, Assessment Report ME 1990-165

Gold, Silver, Cobequid Highlands [Nuttby Mountain-Sugarloaf Mountain Area], Colchester County, Nova Scotia. Report on Geological Mapping, and Rock, Soil and Stream Sediment Geochemical Surveys [Assessment Report on 1990 Exploration Program on General Exploration Licenses 15248, 15258, 15260, 15261 and 15516, Nuttby Mountain ....], by Hogg, D; Seabright Explorations Incorporated, Assessment Report ME 1990-165, 1990, 109 page(s), 8 map(s). ISN: 12133

www.gov.ns.ca/natr/meb/data/ar/1990/ar_me_1990-165.pdf

 

 

Cobequid Gold Corporation Limited, Assessment Reports ME 2004-092 & ME 2004-115)

Gold, French River, Colchester County, Nova Scotia. Work Report Concerning Prospecting, Geological and Geochemical Surveys in Exploration Licence Numbers 04901 and 04900A Respectively, by Hudgins, A D, Cobequid Gold Corporation Limited; Mossman, D J, Cobequid Gold Corporation Limited, Assessment Report ME 2004-092, 2004, 49 page(s), 3 map(s).

www.gov.ns.ca/natr/meb/data/ar/2004/ar_me_2004-092.pdf

 

Gold, Silver, Debert Lake, Cumberland and Colchester Counties, Nova Scotia. Report on Prospecting, Rock and Stream Sediment Sampling and Chemical Analyses, and Examination, Sampling and Chemical Analyses of Existing Drill Core [Assessment Work Report Applicable to Exploration Licence No. 04985 ....], by Hudgins, A D, Cobequid Gold Corporation Limited; Mossman, D J, Cobequid Gold Corporation Limited, Assessment Report ME 2004-115, 2004, 38 page(s), 2 map(s).

www.gov.ns.ca/natr/meb/data/ar/2004/ar_me_2004-115.pdf