Sudbury Basin - Wikipedia
Sudbury Basin is the third-largest crater on Earth, after the 300 km (190 mi) Vredefort impact structure in South Africa, and the 180 km (110 mi) Chicxulub crater under Yucatán, Mexico. Geochemical evidence suggests that the impactor was likely a chondrite asteroid or a comet with a chondritic component.
Sudbury Impact Structure - NASA Earth Observatory
2021年9月19日 · The object responsible for creating Sudbury Basin crashed into Earth about 1.8 billion years ago. That makes this crater in Canada fifty times older than Popigai —one of the world’s most well-preserved craters—which was created a mere 36 million years ago.
SUDBURY IMPACT STRUCTURE – Crater Explorer
The 200-m-thick impact melts found within the Sudbury Crater are a treasure trove of minerals. More than $1 billion of metal ores including those bearing nickel, platinum, and copper are mined from the melts each year.
Comet Strike to Blame for Canada's Iconic Sudbury Basin
2014年11月19日 · The Sudbury Basin, which is the world's second-largest impact crater, was likely formed by an enormous comet that battered Earth more than 1.8 billion years ago, new research suggests.
SUDBURY IMPACT STRUCTURE – GEOMORPHOLOGY – Crater …
SUDBURY IMPACT STRUCTURE GEOMORPHOLOGY The Sudbury Igneous Complex (SIC) adjacent to the Wanapetei Impact Crater. The original circular crater, some 200 km in diameter, has been squeezed by Earth forces and eroded, so that only a much smaller remnant of it remains today (Ontario Geological Survey).
Sudbury Impact Structure - SpringerLink
2023年1月6日 · Sudbury crater is a large impact structure, originally about 200–250 km in diameter and 1.86 billion years old. The almost two-billion-year-old Sudbury impact structure in Canada is one of the oldest known impact structures on Earth.
SUDBURY IMPACT STRUCTURE – GROUND EXPLORATION - Crater …
The Sudbury impact structure – black pseudotachylite. Black pseudotachylite Matachewan Dykes are found throughout the rock cuts along the highway outside the SIC. These dykes predate the formation Sudbury Meteorite Crater and possibly offered a weakness in the Levack Gneiss.
Landsat Image Gallery - Sudbury Impact Structure - NASA
The object responsible for creating Sudbury Basin crashed into Earth about 1.8 billion years ago. That makes this crater in Canada fifty times older than Popigai —one of the world’s most well-preserved craters—which was created a mere 36 million years ago.
A Comet Did It! Mystery of Giant Crater Solved | Live Science
2014年11月18日 · The Sudbury Basin, which is the world's second-largest impact crater, was likely formed by an enormous comet that battered Earth more than 1.8 billion years ago, new research suggests.
Sudbury Impact Structure - SpringerLink
2020年12月13日 · The Sudbury impact structure, Canada, represents the eroded remains of an impact basin originally 150–200 km in diameter which formed ~1.85 Ga ago. It contains world-class ore deposits, associated with the Sudbury Igneous Complex, which represents the differentiated original impact melt sheet.