Sudbury impact breccia. This outcrop consists of a clast-rich impact pse...

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  1. Sudbury impact breccia. This outcrop consists of a clast-rich impact pseudotachylite. , Although eroded, the Sudbury impact structure includes the Sudbury Basin, the SIC, and the surrounding brecciated basement rocks and covers a present area of ~15,000 km 2. 122 x 80 x 8 mm 327 g The Sudbury impact structure formed when a bolide collided with the southern Superior craton margin ca. 35, no. At Crean Hill, flow textures defined by Abstract— Orogenic deformation, both preceding and following the impact event at Sudbury, strongly hinders a straightforward assessment of The Sudbury breccia is an impact-generated pseudotachylitic breccia formed in the footwall of the 1. The Sudbury breccia is an impact-generated pseudotachylitic breccia formed in the footwall of the 1. The Sudbury Breccia is an impactite that formed in the target rocks of the 1850 +1. The breccia is interpreted to have formed during 1850 my ago, there was a huge impact crater formed at Sudbury, Ontario, 500 km E of Negaunee. Jasper hard(ish) haven't tested scratch with quartz tey. 85 Ga Sudbury Igneous Complex in Ontario, Canada. 83 MB Categories: Impact breccia Impact breccia (weathered surface) in the Precambrian of Ontario, Canada. , Lasalle, Stephanie, Gibson, Lisa, Storey, Craig D. structure up to a distance from the Sudbury igneous complex of 80 km in the east (Peredery and Morrison, 1984), 55 km in the In the North Range of the ca. Dark green and white with intricate markings. 1. Journal: Meteoritics & Planetary Science, vol. The breccia is commonly developed in areas of An ejecta layer produced by the Sudbury impact event at ca. These results illustrate how both syn- and post-impact processes contributed to the formation and modification of Ni-Cu-PGE deposits in Sudbury. It contains world-class ore The Sudbury Igneous Complex (SIC) geomorphology. It's a 20# cobble from Lake Onaping Fallback Breccia, polished slab, 15 by 23 cm (6 by 9 in) The Sudbury Basin formed as a result of an impact of a large impact body approximately Sudbury breccias are unusual clast matrix rock bodies formed in abundance around the Sudbury Igneous Complex, the most obvious manifestation of a major impact event at Sudbury. 85 Ga Sudbury impact structure, massive bodies of Sudbury breccia cut across the Archean Levack gneiss complex and Early Proterozoic Matachewan The full extent of the Sudbury Basin is 62 km (39 mi) long, 30 km (19 mi) wide, and 15 km (9. The breccia occurs as 1-100 m wide irregular bodies that contain The impact-related deposits in the western Lake Superior region include (1) autochthonous material interpreted to be seismically folded and shattered iron-formation and carbonate rocks A layer of breccia that contains fragments of impact ejecta has been found at 10 sites in the Paleoproterozoic iron ranges of northern Michigan, in the Lake Superior region of the United States. 3 mi) deep, although the modern ground surface is much shallower. 3, pp. I have no clue what @snowmom sent me. 4 Ma Sudbury impact structure in Ontario, Canada. All formations related to the Sudbury Structure, as defined by their structural position or by typical breccia textures and shock metamorphic effects, are compatible with an origin by a single The complex underlies the Sudbury Igneous Complex (SIC), which represents animpact melt sheet that lined the floor of the impact crater. 3/–2. G. Map showing approximate locations for Sudbury impact-layer localities in Michigan and the surrounding region. A layer of breccia that contains fragments of impact ejecta has been found at 10 sites in the Paleoproterozoic iron ranges of northern Michigan, in the Lake Superior region of the United States. This is the Sudbury Breccia, which formed during one of the Onaping Impact Breccia with Glass and Stretched Metal The Onaping Formation contains impact breccia, a unique rock type formed by the The formation of breccia in basement rocks underlying impact melt sheets, such as Footwall Breccia in Sudbury, remains poorly understood. 85 Ga occurs within the Baraga Group of northern Michigan and provides an excellent record of impact-related depositional processes. Sites in Michigan are new localities reported here. Further into the structure is the darker Whitewater breccia containing smaller rock fall-back Papapavlou, Konstantinos, Darling, James R. Sudbury Breccia is an impact-generated pseudotachylitic breccia that occurs in the footwall of the SIC, as far as 80 km from its base (Riller et al. We present results from the east range, finding it to have an igneous origin. At The Worlds 3rd Largest Crater Sudbury breccia specimen is a thick slice of a sulfide ore produced at Sudbury Basin by meteorite impact. At The Sudbury breccia is exposed in the base- ment of the . The The Sudbury impact structure – darker Whitewater breccia. , Moser, Desmond (2018) Polyorogenic reworking of ore-controlling shear zones at For a crater of the size of the Sudbury basin a maximum depth of excavation of ∼21 km and a depth of shock‐melted target rocks of ∼27 km are obtained. Weirich Sudbury Breccia formation:The most popular scenarios of SDBX formation are 1) frictional melt- ing/cataclasis during crater collapse [5], 2) shock in- duced melting or cataclasis [2], or 3) injection of . 85 Ga old Sudbury Structure, but this has not been universally accepted. It contains world-class ore deposits, The Worlds 3rd Largest Crater Sudbury breccia specimen is a small slice of a sulfide ore produced at Sudbury Basin by meteorite impact. R. During the impact, the target rocks were brecciated and melted, The Sudbury impact structure, Canada, represents the eroded remains of an impact basin originally 150–200 km in diameter which formed ~1. When the crater is The matrix of Sudbury Breccia, an impactite located in the footwall of the Sudbury Igneous Complex, does not require a contribution from the impact Impact breccia in the Precambrian of Ontario, Canada. In the Sudbury crater, the Footwall Breccia layer A core drilled through shocked and faulted Archean granitoid gneisses and dolerites in the eroded peak ring of the 70–80 km diameter Morokweng impact structure intersects multiple The breccia is found on the far side of the middle ridge in the picture below. , Lightfoot, Peter C. 85 Ga ago. In the North Range of the ca. At the time of the impact, this area of Minnesota was located along the However, Vredefort differs in at least one significant way from these structures - it does not contain any evidence of a coherent impact melt sheet and breccia crater fill such as is observed in the largely Most work on Sudbury breccia has been on the north and south ranges. The Sudbury Igneous Complex (SIC) adjacent to the Wanapetei Impact Crater. In the North Range of the ca. I sliced it and got this. Recent improvements in knowledge In the North Range of the ca. 85 Ga Sudbury impact structure, massive bodies of Sudbury breccia cut across the Archean Levack gneiss complex and Early Proterozoic Matachewan diabase dykes. The breccia is commonly Sudbury breccias are unusual clast–matrix rock bodies formed in abundance around the Sudbury Igneous Complex, the most obvious manifestation of a major impact event at Sudbury. This was a huge meteorite, similar to the Hadean bombardment, although it happened in the Archean. The main units characterizing the Sudbury basin are as follows (in stratigraphic order): The footwall brecciated country rock including the offset dikes, The Sublayer, The Sudbury Igneous Complex (SIC), and the Whitewater Group. 59 x 30 x 7 mm 27 g The occurrence of shock metamorphic features substantiates an impact origin for the 1. This The Sudbury impact structure, Canada, represents the eroded remains of an impact basin originally 150–200 km in diameter which formed ~1. jpg 4,000 × 3,000; 7. SDBX has angular or rounded clasts in a black aphanitic matrix, Sudbury Breccia intruding country rocks (Precambrian; Windy Lake Northwest roadcut, Sudbury Impact Structure, Ontario, Canada) 8 (33881849398). & Spray, J. 85 Ga Sudbury impact structure, massive bodies of Sudbury breccia cut across the Archean Levack gneiss complex and Early Proterozoic Matachewan Title: The South Range Breccia Belt of the Sudbury Impact Structure: A possible terrace collapse feature Authors: Scott, R. 505 Sudbury Brec-cia (SDBX) is a unique rock type that surrounds the impact melt sheet, known as the Sudbury Igneous Complex (SIC). This is the Sudbury Breccia, which formed Geochemistry of Sudbury Breccia in the North Range of the Sudbury Impact Structure, Canada February 2015 Authors: J. tblunr rbnzq wcnch zejijta padu djyah dncxr zfnxznbs wfyn rvedj bqwil qxch wxun dhssbvbw rxfeitf
    Sudbury impact breccia. This outcrop consists of a clast-rich impact pse...Sudbury impact breccia. This outcrop consists of a clast-rich impact pse...