|Title||Relationship of structural lineaments and mineral occurrences in the Abitibi area of the Canadian Shield|
|Licence||Please note the adoption of the Open Government Licence - Canada
supersedes any previous licences.|
|Author||Kutina, J; Fabbri, A G|
|Source||Geological Survey of Canada, Paper no. 71-9, 1972, 36 pages (6 sheets), https://doi.org/10.4095/102464 Open Access|
|Publisher||Geological Survey of Canada|
|Maps||Publication contains 8 maps|
|Map Info.||geological, 1:500,000|
|Map Info.||geological, 1:1,013,760|
|Map Info.||geological, 1:253,440|
|Media||paper; on-line; digital|
|NTS||31M; 31N; 32C; 32D; 41O; 41P; 42A; 42B|
|Lat/Long WENS|| -84.0000 -76.0000 49.0000 47.0000|
|Subjects||economic geology; industrial minerals; metallic minerals; structural geology; arsenic; cobalt; copper; gold; iron; lead; molybdenum; nickel; production; pyrite; reserves; silver; uranium; zinc;
Beauchastel Fault; Blanche River Fault; Cadillac-bouzan Fault; Cross Lake Fault; Destor-porcupine Fault; Horne Creek Fault; Hunter Creek Fault; Lake Timiskaming W Shore Fault; Mattagami River Fault Sys; Montreal River Fault; Pipestone Fault; Quesabe
Fault; Quinze Dam Fault|
|Released||1972 01 01; 2015 08 06|
|Abstract||The Abitibi and of the Canadian Shield, located between 76° and 84 ° W and 47 ° 30' and 49• N in Ontario and between 48° and 49° N in Quebec, was studied in context with the structural geology of a
considerable part of the Canadian Shield. |
Comparison of lineaments in very distant are as of the Canadian Shield suggests that the Shield structure is strongly influence d by one prominent pattern of deep-seated fractures. A spacing of 100
miles between the cast west lineaments of the Canadian Arctic is recognizable also in the drainage pat tern east of James Bay and is reflected in the Abitibi area. It is compatible with a set of east-west trending major fractures by J. Kalliokoski as
bounding crustal blocks with cores of granitic rocks. The two schemes have been derived in different ways and fully independently of each other.
The spacing between the Hudson Bay Paleolineame nt - a significant geofracture of the Canadian
Shield - and the Mattagami River Lineament was used as the unit interval in the north-south set of fracture -trajectories of the prospecting net for the Superior Provinces south of Hudson Bay. The corresponding unit interval in the eastern part of
this area is smaller. Fifteen comparable intersections have been postulate d. Endogenous ore deposits are known to occur a long seven of them and the remaining eight are recommended for prospecting.
In the Abitibi area intersecting fractures
of these sets are present and the distribution of gold and copper deposits coincides with them. The ore deposits are clustered at or near the intersect ions of major fractures (Noranda, Kirk land Lake , Matachewan and Timmins-Porcupine deposit
clusters). Several recommendations for prospecting can be deduced from the relationship of the fracture pattern and the distribution of about 1,300 gold and about 700 copper occurrences of the area. Sorne recommendations are presented in this paper.
With respect to the individual ore districts, the relationship of ore deposits to volcanic centres, as outlined in 1967 by Wilson is emphasized. The large-scale deep-seated fractures may control the general distribution of volcanic centres
and the associated ore deposition and this possibility should be tested.