The Temagami Magnetic Anomaly , also called the Temagami Anomaly or the Wanapitei Anomaly , is a magnetic anomaly resulting from a large buried geologic structure in the Canadian Shield near Temagami, Ontario , Canada . It stretches from Lake Wanapitei in the west to Bear Island in Lake Temagami .
7-805: The Aboriginal community of Teme-Augama Anishnabai lies partly within the Temagami Magnetic Anomaly, including the Temagami First Nation on Bear Island. Located nearby are a number of other geological structures, including the Sudbury Basin , the Lake Wanapitei impact crater , and the Temagami Greenstone Belt . The Temagami Magnetic Anomaly is egg-shaped, 58 km (36 mi) long and 19 km (12 mi) wide. The central section has
14-479: A small positive gravity anomaly, indicating the presence of dense rocks at depth. The anomaly was discovered by a magnetic survey and a gravity survey. In 2014, a 2200m borehole was drilled at Afton Township where the anomaly is at its maximum. Analysis of the lowest most rocks indicated similarities with the quartz diorite dykes found at the Sudbury Igneous Complex , which were likely created at
21-834: The Supreme Court . In 1988, the Ontario Minister of Natural Resources , Vince Kerrio approved the expansion of the Red Squirrel logging road , directly through Anishinaabe territory. This prompted a series of roadblocks by the Teme-Augama Anishnabai and by environmentalists in 1988-1989. In 1991, the Teme-Augama Anishnabai and the Ontario Government created the Wendaban Stewardship Authority to manage
28-676: The Temagami region of Canada for over 5,000 years. Bear Island on Lake Temagami is home to the Indigenous community. In 1973, The Teme-Augama Anishnabai exercised a land caution against development on the Crown land of 10,000 square kilometres-most of the Temagami area. The attorney-general of Ontario pursued legal action against the Band for this caution. The Teme-Augama Anishnabai lost this court case in 1984 and proceeded with an appeal to
35-420: The four counties near the logging road. The committee eventually dissolved. In August 1991, the Teme-Augama Anishnabai lost the land caution, though it was determined that Ontario and Canada have an outstanding fiduciary obligation for unfulfilled Robinson Huron Treaty obligations to which the Teme-Augama Anishnabai have been illegally adhered to. The Teme-Augama Anishnabai failed appeal in 1994 eventually lead to
42-525: The greatest amplitude and an east–west strike. The Temagami Magnetic Anomaly was first found in the late 1940s during a magnetic survey by Norman Bell Keevil. The western portion appears smoother in character while the eastern section is long and narrow. With an areal extent of 50 x 15 km, it reaches a magnitude of approximately 10,000 nanoteslas , making it one of the largest positive anomalies in North America. The eastern section coincides with
49-667: The same time as the Sudbury impact event. 47°00′N 80°12′W / 47.0°N 80.2°W / 47.0; -80.2 ( Temagami magnetic anomaly ) Teme-Augama Anishnabai The Teme-Augama Anishnabai (from the Anishinaabe Dimii'aagamaa Anishinaabe , "the deep water people") is the Indigenous Anishinaabe community of the Temagami First Nation . The ancestors of Teme-Augama Anishnabai have trapped and hunted animals in
#407592