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 2700 million 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.
The Blake River Megacaldera Complex has been a centre of major interest since 2006 with numerous excursions at the international, national and local level. It is a world-class metallotect with respect to both hydrothermal Cu-Zn massive sulfides and gold-rich massive sulfides.
Read more about Blake River Megacaldera Complex: Structure and Geographical Extent
Famous quotes containing the words blake, river and/or complex:
“My mother bore me in the southern wild,
And I am black, but O! my soul is white;”
—William Blake (1757–1827)
“There are knives that glitter like altars
In a dark church
Where they bring the cripple and the imbecile
To be healed.
There’s a woden block where bones are broken,
Scraped clean—a river dried to its bed”
—Charles Simic (b. 1938)
“All propaganda or popularization involves a putting of the complex into the simple, but such a move is instantly deconstructive. For if the complex can be put into the simple, then it cannot be as complex as it seemed in the first place; and if the simple can be an adequate medium of such complexity, then it cannot after all be as simple as all that.”
—Terry Eagleton (b. 1943)