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 July 02, 2011
Einarson Project Exploration Program Update

 Regional Geologic Setting:

Anthill Resources' Einarson Lake Property is located in the northeast Selwyn Basin, a part of Ancestral North America (Laurentia). The Selwyn Basin is comprised of Neoproterozoic to Paleozoic slope-to-basin faces continental margin strata, which includes the characteristic eastern shallow water carbonates and western deep-water settings. "The carbonates were succeeded by hemipelagic and pelagic organic-rich sediments with occasional terrigenous material" along the continental slope. There is an association of uplifted Selwyn Basin rocks with turbidity current deposits. Morganti et al. (1979), Mair et al. (2006).

The faces of the Selwyn Basin have undergone intense deformation, extension, faulting and folding since their deposition. Folding began in the Jurassic with the onset of orogenic activity when the continental margin was overridden by Yukon-Tanana terrain. Deformation relating to continental collision stopped, and in the late Cretaceous lateral shifting moved the continental margin material of the basin dextrally along the Tintina fault. (Nelson, J., and Colpron, M., 2007)

Regionally, the Selwyn Basin is located to the east of the Tintina Fault, the Cordillera tectonic zone to the west, Arctic land to the North and the North American

Platform to the east. Similar tectonic settings exist in the Carlin-type gold regions of Nevada, USA (Cook, 2003) and Wenxian, China (Sun, Shu hao, 2009).

Summary of Grass Roots Progress:

  1. The "Grit Unit" which is described in both the G.S.C. Memoir 366 (1973) and the geological and geochemical report on "Odd Claims" (J.T. Shearer, D. L. McKelvie, 1975) was identified in the Einarson lake property.
  2. Areas of anomalous arsenic, mercury, and antimony were explored and sampled.
  3. Several calcite and quartz veins, mineralized (pyrite, galena, arseno-pyrite, realgar) rocks, slump deposits and debris flows (turbites, limestone, sandstone, shale), limestone beds (dark and light coloured, massive and laminated, some with decarbonization features), iron oxidized rock, and rocks including phyllite, limestone, dolomite, sandstone and mudstone were examined and sampled for analysis.
  4. Intense deformation features were observed including isoclinal folding, anticlines and synclines, faults, compression and a brittle breakage belt, and extension faults.
  5. Nearly 300 samples currently being processed by ALS minerals.


Extension fault showing rifting


Brittle fracture between limestone


Turbidite in talus


Turbidite with veins piecing through beds


Some typical rocks found in the property are shown as below:


Limestone breccias (debris flow unit) with calcite veins filling in fractures


Calciferous sandstone with disseminated pyrite, pyrite assemblage and quartz vein in fracture Realgar coexists with orpiment and quartz crystal.


Massive limestone with decarbonation partially and strong stink smell.


Massive limestone with calcite veins filling in fractures.

 
 

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