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Diluvial terraces on Katun River Altai Scabland, Altai Republic Giant current ripples in the Kuray Basin, Altai, Russia. Diluvium is an archaic term applied during the 1800s to widespread surficial deposits of sediments that could not be explained by the historic action of rivers and seas.
Adam Sedgwick, Woodwardian Professor of Geology at Cambridge, presented two supportive papers in 1825, "On the origin of alluvial and diluvial deposits", and "On diluvial formations". At this time, most of what Sedgwick called "The English school of geologists" distinguished superficial deposits which were "diluvial", showing "great irregular ...
Onaping Fallback Breccia, polished slab, 15 by 23 cm (6 by 9 in) The Sudbury basin formed as a result of an impact into the Nuna supercontinent from a large impactor body approximately 10–15 km (6.2–9.3 mi) in diameter that occurred 1.849 billion years ago [2] in the Paleoproterozoic era.
In geography and geology, fluvial sediment processes or fluvial sediment transport are associated with rivers and streams and the deposits and landforms created by sediments. It can result in the formation of ripples and dunes , in fractal -shaped patterns of erosion, in complex patterns of natural river systems, and in the development of ...
The Labrador Trough or the New Quebec Orogen is a 1,600 km (994 mi) long and 160 km (99 mi) wide geologic belt in Canada, extending south-southeast from Ungava Bay through Quebec and Labrador. The trough is a linear belt of sedimentary and volcanic rocks which developed in an Early Proterozoic rift basin. To the west is the Archean Superior Craton.
The Southern province is a narrow region from Sault Ste. Marie to Kirkland Lake, is made of rocks dating 1.8 to 2.4 billion years ago. [1] The Hudson Bay lowlands, located north of the Canadian Shield, are mainly made of sedimentary rocks from the Silurian Period, although some parts date from the Ordovician and Devonian periods. [1]
By 2007 the Alberta natural bitumen deposits were the source of over one third of the crude oil produced in Canada. [ 5 ] As a result of the oil price increases since 2003 , the number of major mining , upgrading and thermal in-situ projects has grown to some 46 existing and proposed projects, encompassing 135 project expansion phases in ...
The Abitibi greenstone belt is a 2,800-to-2,600-million-year-old greenstone belt that spans across the Ontario–Quebec border in Canada. [1] It is mostly made of volcanic rocks, but also includes ultramafic rocks, mafic intrusions, granitoid rocks, and early and middle Precambrian sediments.