The Blake River Megacaldera Complex is a giant subaqueous caldera cluster or a nested caldera system that spans across the Ontario–Quebec border in Canada.
The caldera complex is around 2.7 billion years old, consisting of a series of overlapping calderas of various ages and sizes. It lies within the southern zone of the Abitibi greenstone belt of the Superior Craton and has an area of 3,000 km2 (1,200 sq mi).
The Blake River Megacaldera Complex has been a centre of major interest since 2006 with numerous excursions at the international, national and local level.[1] It is a world-class metallotect with respect to both hydrothermal Cu-Zn massive sulfides and gold-rich massive sulfides.
^ASH FALL: Newsletter of the Volcanology and Igneous Petrology Division Geological Association of Canada Retrieved on 2007-09-21
and 18 Related for: Blake River Megacaldera Complex information
The BlakeRiverMegacalderaComplex is a giant subaqueous caldera cluster or a nested caldera system that spans across the Ontario–Quebec border in Canada...
amounts of ejecta. The term megacaldera is sometimes used for caldera supervolcanoes, such as the BlakeRiverMegacalderaComplex in the Abitibi greenstone...
Greenstone Belt in Temagami, Ontario, Canada. c. 2,707 Ma – BlakeRiverMegacalderaComplex begins to form in present-day Ontario and Quebec – first known...
Caldera Long Valley Caldera Lake Toba Bennett Lake Volcanic ComplexBlakeRiverMegacalderaComplex Lake Taupo Iwo Jima La Garita Caldera in Colorado Timber...
active-arc-back-arc systems. The huge 2,707-to-2,696-million-year-old BlakeRiverMegacalderaComplex is within the belt. Abitibi gold belt List of greenstone belts...
Ontario and Quebec, Canada. It is the caldera that forms the BlakeRiverMegacalderaComplex and has a diameter of 40-80 kilometres. The caldera is also...
travels counterclockwise around the Pushkin Hills, part of the BlakeRiverMegacalderaComplex, eventually heading south into Timiskaming District and Misema...
Maruyama, Shigenori (2007), Chapter 3.1 the Early Archean Acasta Gneiss Complex: Geological, Geochronological and Isotopic Studies and Implications for...
is a well-known large subaqueous Archean caldera complex within the BlakeRiverMegacalderaComplex, Quebec, Canada. The caldera contains a 7-to-9-km-thick...
located in the township are the Pushkin Hills, part of the BlakeRiverMegacalderaComplex. The southern border of the township forms part of the border...
Misema Lake is also in the Pushkin Hills, part of the BlakeRiverMegacalderaComplex. The river exits the lake at the east, travels southwest into Timiskaming...
annular feature in the lower left of the satellite photo/diagram BlakeRiverMegacalderaComplex map.jpg. Retrieved 2020-07-08. Other map sources: Map 15 (PDF)...
swarm and Matachewan dike swarm form 2,500 million years ago. BlakeRiverMegacalderaComplex forms 2,704–2,707 million years ago. Approximately 2,500 million...
connecting Nepawa Island to the mainland Wahgoshig First Nation BlakeRiverMegacalderaComplex List of lakes in Ontario Atlas of Canada Archived 2007-04-10...
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