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| PROPOSED KAOLINITE
MINE
Threatens Shelburne Barrens and Tobeatic Wilderness Area: Black Bull Resources Inc., under an option agreement with CAG Enterprises Ltd., has completed initial exploration for its Flintstone Rock kaolin-quartz project in southwestern Nova Scotia. The property lies along the Tobeatic Fault Zone, at the southern margin of the South Mountain Batholith. Work to date has included trenching, geophysical surveys (IP), diamond-drilling and sample testing. The company has completed 29 drillholes to date and reports that the target alteration zone varies from 100 to 200m in width, exceeds 100m in depth, and exceeds 1200m in strike length. Black Bull Resources is negotiating with international mining producers to establish partnerships to move into production. |
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| Pictured above is one of
two massive exploratory pits excavated this spring, immediately adjacent
to the Tobeatic Wilderness Area on Highway 203, on lands of the Proposed
Shelburne Barrens Ecological Reserve. This pit, the larger of the two,
is north of the highway and approximately 300m from the Clyde River and
the TWA boundary. The excavation of a third pit is proposed nearby, but
has yet to receive approval from DNR.
The Tobeatic Wilderness Committee sees this proposed mine as a threat to the TWA itself. We suspect that, if allowed to develop the mine and establish some infrastructure and a few jobs, the company will eventually push to mine the remaining Tobeatic Shear Zone, most of which lies within the Protected Area, once the deposits outside the boundary are mined out. We forsee the inevitable emotional plea to DNR to "save jobs" by realigning the TWA boundary. DNR has yet to provide adequate justification for the realignment of the Proposed Shelburne Barrens Ecological Reserve and the Proposed Indian Fields Provincial Park boundaries to accomodate the current exploration. Perhaps DNR reasons that Nova Scotia needs to protect open pit mines
more than it needs to protect representative landscapes like the unique
Flintstone Barrens.
What can you do?
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The following are excerpts from a recent article from the Yarmouth Vanguard, about the discovery of kaolin and silica at the Shelburne Barrens site: "Stora Port Hawkesbury Forest Industries’ recent move into the production of this high-end paper product at its Abercrombie Point mill has generated the impetus for exploring the site, says Thomas. Location is everything because it is the user that will pay the freight. For Stora, having ready access to a commercial deposit of kaolin would give it an incredible cost advantage. Thomas says one of the closest commercially-mined deposits of kaolin is in Georgia... " ...Indeed the kaolinite content in the rock
quarried at the tin mine was so high, it created environmental problems
during the mine’s start-up when water from the holding ponds began escaping
into the Tusket River system. The water had to be treated with flocculents
in order to precipitate the clay particles out of the water."
On April 15, 2000, the Chronicle Herald ran the following story(See Media Library, 2000): Mine Interests prepare bulk samples for testing: Geologists upbeat about kaolinite in Yarmouth County: Nova Scotia's newest mineral exploration effort
has entered a crucial stage. An open- pit Kaolinite mine in Yarmouth County
will soon yield bulk samples for testing in the United States.
A kaolinite mine near the Tobeatic would be a disaster and action must be taken soon to deter such development. That's because the province has taken several steps in the past years to insure kaolinite mining in Nova Scotia is viable. A few years back the province went to court, or developed legislation, to officially define kaolin as a mineral so that it falls under the mineral act. The mines division of DNR has allocated much resources to encourage kaolinite exploratin within the province. Other deposits occur near Upper Musquodobit but as a surficial deposit rather than a bedrock deposit like that of the Shelburne Barrens. The Province has also delisted sections of the Shelburne Barrens candidate ecological reserve to encourage kaolinite development. All of these steps suggest the Province wants kaolinite mining in Nova Scotia. The general public must be informed of the dangers such development poses for the environment, fish populations, and our water supplies. Martin Willison, one of his students (Leah Hagreen), and Chris Miller have conducted research within the Shelburne Barrens candidate ecological reserve. The area was nominated for protection in 1974 through a multi-national initiative known as the international biological programme (IBP). In those 25+ years, however, the area has not been formally protected through the Special Places Protection Act and has been victimized by interim development...in the mid-80's a highway was paved through the middle of the Barrens and more recently (1996-present) mineral exploration has been actively occurring with the boundaries of the IBP site. A miniature IRM study was undertaken on the Shelburne Barrens in 1999 to examine the conflict between conservation and mineral exploration. The tory government redrew the original boundaries of the park so as to exclude areas with the highest mineral potential. This is a very scarry precendent for candidate ecological reserves in Nova Scotia. Mineral exploration licences occur within numerous other IBP sites including Cape Split, Cape d'Or, and Melrose, among others. The province prohibits forestry from such sites, but mineral exploration is no holds barred. The kaolinite deposit of the Shelburne Barrens is linear in nature (6km long, 400m wide, and 100m deep). A large proportion of the kaolinite lies beneath the Tobeatic Wilderness Area. Extraction will most likely occur as open-pit mining. Leah Hagreen conducted an ecological study on the Shelburne
Barrens in the summer of 1998. She concluded the development of a
kaolinite mine in the region was potentially catastrophic. The site
is located at the headwaters
Similar kaolinite mines in England have been environmental disasters. Leah's literature research reveals the danger of developing such sites. The following quote is from England's environmental department. "It is impossible for an industry such as china clay (kaolinite) to undertake its operations without having a significant impact on the environment". |
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| This map shows the general location of the exploratory drill sites, approximately one kilometer west of the Clyde River Bridge on Highway 203. The Highway forms the southern boundary of the Tobeatic wilderness Area for many kilometres in both directions from this location, and it appears obvious now that the boundary was set as it was in this area to allow for this exploration. A more detailed Drill Site map has been requested from DNR. This information was provided by the good folks from TREPA, who visited the site on March 20,2000 | ![]() |
| The scar of the abandoned Rio Algom Tin Mine is clearly visible in the centre left of this satellite image, from an altitude of more than 300 kilometres. Highway 203 cuts throught the "Flintstone Barrens" topography (lighter violet), and forms the boundary between the Tobeatic Wilderness Area (upper right) and the Shelburne Barrens candidate ecological reserve (centre). The Kaolinite drill site is indicated by the red area in the lower left. | ![]() |
| An example of the introduction of suspended solids into surface waters, which will disrupt habitats, biota and flora (note the "chalky" colour of the water in the pit), typical of the nature and effect of kaolin particles. | ![]() |
| A white, chalky residue of suspended solids left behind when the water in this drainage ditch evaporated. The effects of these suspended clay solids, by their nature and quantity, would be catastrophic on downstream aquatic ecosystems. | ![]() |
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Following are excerpts and recommendations taken from Leah Hagreen's comprehensive 1998 Ecological Study of the Shelburne Barrens: ©1998 Leah Hagreen
Table 5-5: Summary of potential environmental impacts of kaolinite mining
The development of trails and Highway 203 fragment habitat, and act as a barrier to the movement of animals such as moose and deer (Beazley, 1998). Development has also led to the introduction of exotic invasive plant species, such as scotch broom and pearly everlast. According to White and Keddy (1993), scotch broom is “one of five invasive alien plants that have had a major impact on natural ecosystems in Canada” (p.85). This and other invasives establish themselves on sandy roadsides, barrens and open woods, having the greatest impact in areas that have experienced landscape modification. Any further development in the area would only serve to increase the abundance of these types of plants, which could lead to instability in the natural plant communities, leaving them more vulnerable to other invasions. ATV use has been extensive in the area, with trails reaching from
the Indian Fields system through the TWA to Kejimkujik National Park.
This has been particularly destructive to the wetland habitats along the
Roseway River floodplain. Wetlands dominated by Ledum sp., which
are common to the Shelburne Barrens, are especially vulnerable, as these
are slow to regenerate (Ross, 1991). Continual ATV impacts can compact
the soils, diminishing the ability of plants to establish themselves (Ross,
1991).
5-4 Summary
Protection of these outstanding values requires the protection of the
lakes which are at the heart of the area. In order to protect these
lakes, the boundaries for the Shelburne Barrens as a Special Place must
include the watersheds which feed into these lakes. “Drawing natural
region boundaries at scales that encompass landscape features such as...watersheds
provides a suitable framework to plan for individual protected areas” (Hummel,
1995, p.3).
5-5 Conclusion and Recommendations 5-5-1 Conclusion
5-5-2 Recommendations
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| Download 1998 Ecological Study of the
Shelburne Barrens:
The complete text of Leah Halgren's comprehensive study is available here for viewing or downloading as Portable Document Files (PDF), and can be viewed using Acrobat Reader 4.0. If you do not have the Reader, it can be downloaded FREE from the Adobe Website. A Survey of the Shelburne Barrens Candidate Nature Reserve, and the
Environmental Impacts of Kaolinite Mining
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