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Impact sites on the earth and craters creation
Database including the Structure name, the Region, Country, Continent/Ocean, Diameter, Age, Target water depth and many more. Impact craters map: http://en.mapatlas.org/m/impact_craters
Name | Structure name | Region | Country | Continent/Ocean | Class | Inherited class | Crater field | Lat | Lon | Diameter final rim km | Diameter present-day km | Diameter outer limit of deformation km | Diameter km | DiameterSQL km | Age Ma | Younger age limit Ma | Best age Ma | Older age limit Ma | Age uncert Ma | Age uncert type | Overburden m | Present water depth m | Drilled | Target | Target water depth m | Impactor | Notes | Updated on | Compiled by |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Acraman, Australia, South Australia | Acraman | South Australia | Australia | Australia |   | - | - | -32.016666666667 | 135.45 | 85-90 | 30 | - | 85-90 | 85 | ~580 | 570 | 580 | 590 | 10 | stratigraphic |   |   | - | I | - | chondrite | “The Acraman impact structure (Williams and Gostin, 2005) is expressed topographically by a ~30 km diameter depression in the Gawler Ranges of northern Eyre Peninsula, South Australia. A ~20 km diameter subcircular playa lake with islands (Lake Acraman) is situated within the depression. The geomorphic expression of Acraman makes it clearly visible on maps and satellite images, but outcrop of bedrock in the central depression is strictly localised. The Gawler Ranges are comprised of flat-lying | 28/6/2007 | D. Rajmon |
Alamo (=Tempiute), USA | Alamo (=Tempiute) | - | USA | North America |   | - | - | 37.6 | -115.34 | 44-65 | - | - | 44-65 | 55 | 382.1 ± 3 | 379.1 | 382.1 | 385.1 | 3 | 95% conf. |   |   | - | W, Scs | - | - | Late Devonian Alamo breccia 1-135 m thick over 16000 km2. Probably generated by collapse of carbonate platform and tsunamis triggered by impact. Evidence for impact origin of the Alamo megabreccia and related features: (1) Abundant shocked quartz, documented by petrography (e.g., Warme and Sandberg, 1995; Warme and Kuehner, 1998; Morrow and Sandberg, 2001; Morrow et al., 2005), TEM analysis (Leroux et al., 1995), U-stage microscopy (Morrow et al., 2001), and SEM imaging (Morrow et al., 2005 | 10/2/2006 | J.R. Morrow, D. Rajmon |
Amelia Creek, Australia, Northern Territory | Amelia Creek | Northern Territory | Australia | Australia |   | - | - | -20.85 | 134.88 | - | 20x12 | - | 20x12 | 16 | 1815-600 | 600 | - | 1815 | - | stratigraphic |   |   | N | Ss, I | - | - | Amelia Creek structure is an elliptic zone of deformation 12 x 20 km overprinting older multiple folds and faults in metamorphosed Paleoproterozoic sandstones, siltstones, volcanics and volcaniclastics. There is no developed central uplift and it is unclear whether the arcuate features visible in aeromagnetic, ASTER and XSAR images represent original diameter of the structure (Macdonald et al., 2005). Unimbra sandstone on the southern toe of the central syncline hosts abundant conically jointed | 12/12/2007 | D. Rajmon |
Ames, USA, Oklahoma | Ames | Oklahoma | USA | North America |   | - | - | 36.25 | -98.2 | - | 16 | - | 16 | 16 | 445-456 | 445 | - | 456 | - | biostratigraphic | 2750 |   | Y | Ssc, I | <500 | - | Ames is a buried structure on the shelf of the Anadarko Basin. The target rocks are Precambrian-Cambrian granites and Cambrian-lower Ordovician sandstones and carbonates (Arbuckle Group). The structure is overlain by ~2750 m of various sedimentary formations of middle Ordovician to lower Guadalupian (Permian) age. The anomalous character of the area was first recognized by drilling through abnormally thick and deep overlying Hunton carbonates (Silurian-Devonian). Subsequent drilling and seismic | 1/3/2005 | D. Rajmon |
Amguid, Algeria | Amguid | - | Algeria | Africa |   | - | - | 26.0876 | 4.3951 | 0.49x0.54 | - | - | 0.49x0.54 | 0.515 | <0.1 | - | - | 0.1 | - | geomorphologic |   |   | N | Ss |   | - | Amguid crater was first reported by Karpoff (1954) and briefly described by Lefranc (1969). Lambert et al. (1980) described it as a fresh circular cavity with a raised rim and a steep wall, ~450 m in diameter and 30 m deep. Measurements on data on Google Earth reveal slightly rectangular perimeter 490x540 m in diameter and ~20 m depth. The target rocks are subhorizontal Lower Devonian sandstones. They dip outward within the wall progressively steepening upward and the topmost layers are overtu | 13/12/2007 | D. Rajmon |
Aorounga, Chad | Aorounga | - | Chad | Africa |   | - | - | 19.09 | 19.24 | 16 | 13 | 16 | 16 | 16 | 385-0.5 | 0.5 | - | 385 | - | stratigraphic |   |   | N | Ss | - | - | Aorounga structure is located in a desert of the Tibesti Massif, ~110 km southeast of the Emi Koussi volcano. Its preserved morphology defines ~13 km diameter. Early photogeological investigation of this structure suggested it was a granite diapir or an impact crater (Roland, 1976 in Koeberl et al., 2005). Grieve et al. (1988) listed the structure as a possible impact crater. Becq-Giraudon et al.(1992) visited the structure and reported possible shater cones and breccias with quartz showing mult | 22/2/2008 | D. Rajmon |
Aouelloul, Mauritania | Aouelloul | - | Mauritania | Africa |   | - | - | 20.2413 | -12.6745 | 0.39 | 0.39 | - | 0.39 | 0.39 | 3.0 ± 0.3 | 2.7 | 3 | 3.3 | 0.3 | 1or 2 σ |   |   | N | Ss, M |   | iron | 390m diameter crater in Zli sandstone and Oujeft quarzite, with well developed rim 15-25 m tall. Filled with porly sorted silty sand and aeolian sand. Documented Si-rich glass, some samples contaning Ni-rich microspherules. The glass is inhomogeneous with schlieren, partly digested quartz and feldspar, lechatelierite, baddeleyite, low water content and enriched siderofiles. Considering the lack of any volcanic rocks in the area, the glass was taken as a proof of impact origin (Koeberl et al., 19 | 4/4/2008 | D. Rajmon |
Araguainha, Brazil | Araguainha | - | Brazil | South America |   | x | - | -16.811 | -52.99 | - | - | - | 40 | 40 | ~246 | 221.4 | 246 | 270.6 | - | 0.1 |   | - | N | - | - | - | Data from (EID, 2009). (Romano and Crósta, 2004) gives the same coordinates. Orbital radar data in (Theilen-Willige, 1987). Coordinates from Google Earth. Jourdan et al. (2009) reanalyzed earlier reported 40Ar/39Ar age 244.40 ± 3.25 (2σ) Ma and suggested a less precise age ~246 Ma. This database asigns the age an conservative uncertainty range of ± 10 %. References: EID (2009) Earth Impact Database. 13 April 2009. http://www.unb.ca/passc/ImpactDatabase Jourdan F., Renne P. R. and Reimold | 9/11/2009 | D. Rajmon |
Avak, USA, Alaska | Avak | Alaska | USA | North America |   | - | - | 71.233 | -156.483 | 12 | 12 | - | 12 | 12 | 110-3, likely ~90 | 3 | 90 | 110 | - | stratigraphic | 30 |   | Y | Ssc, M | 0-500 | - | The Avak structure is centered 12 km SE of the village of Barrow, in the northernmost part of the National Petroleum Reserve in Alaska. It is positioned on top of the E-W trending Barrow high (180x100 km, max. uplift >=900 m), which is superimposed on the broad uplifted Barrow arch trending along the coastline from Chukchi Sea to beyond Prudhoe Bay (>640 km length). The bedrocks in the area form four tectonostratigraphic units: 1) The Franklinian sequence consists of mildly metamorphosed lower | 24/6/2008 | D. Rajmon |
B.P. Structure, Libya | B.P. Structure | - | Libya | Africa |   | x | - | 25.3192 | 24.3099 | - | - | - | 2 | 2 | < 120 | - | - | 120 | - | - |   | - | N | - | - | - | Data from (EID, 2009). Appears to be the same as Gebel Dalma in (Dence, 1972). Coordinates from Google Earth. References: Dence M. R. (1972) The nature and significance of terrestrial impact structures. In 24th International Geological Congress, pp. 77-89, Montréal, Canada. EID (2009) Earth Impact Database. 13 April 2009. http://www.unb.ca/passc/ImpactDatabase | 14/6/2009 | D. Rajmon |
Barringer, USA, Arizona | Barringer | Arizona | USA | North America |   | x | - | 35.0274 | -111.0227 | - | - | - | 1.186 | 1.186 | 0.049 ± 0.003 | 0.046 | 0.049 | 0.052 | 0.003 | - |   | - | Y | - | - | iron IA | Data from (EID, 2009). Coordinates from Google Earth. Iron IA projectile (ref. in Tagle, 2006). References: EID (2009) Earth Impact Database. 13 April 2009. http://www.unb.ca/passc/ImpactDatabase Tagle R. and Hecht L. (2006) Geochemical identification of projectiles in impact rocks. Meteoritics & Planetary Science 41(11):1721-1735. http://digitalcommons.library.arizona.edu/objectviewer?o=uadc%3A%2F%2Fazu_maps%2FVolume41%2FNumber11%2Fp1721-1735 | 14/6/2009 | D. Rajmon |
Beaverhead, USA, Montana | Beaverhead | Montana | USA | North America |   | x | - | 44.64 | -113 | - | - | - | 60 | 60 | ~ 600 | 540 | 600 | 660 | - | 0.1 |   | - | N | - | - | - | Data from (EID, 2009). Coordinates from Google Earth following a map in Hargraves et al. (1990). References: EID (2009) Earth Impact Database. 13 April 2009. http://www.unb.ca/passc/ImpactDatabase Hargraves R. B., Cullicott C. E., Deffeyes K. S., Hougen S., Christiansen P. P. and Fiske P. S. (1990) Shatter cones and shocked rocks in southwestern Montana: The Beaverhead impact structure. Geology 18(9):832-834. http://dx.doi.org/10.1130/0091-7613(1990)018<0832:SCASRI>2.3.CO;2 | 14/6/2009 | D. Rajmon |
Beyenchime-Salaaty, Russia | Beyenchime-Salaaty | - | Russia | Asia |   | - | - | 71.058 | 121.692 | 8 | 8 | - | 8 | 8 | Cenozoic |   | - | 65.5 | - | stratigraphic |   |   | N | Scs | - | - | Beenchime-Salaaty is a partly preserved flat-floored depression surrounded by 50-70 m high rim ~8 km in diameter composed of uplifted and upthrusted Cambrian carbonate rocks. Isolated hills of allogenic breccia are preserved in the depression. The target documented in the area involves 1000-1200 m of Cambrian rocks dominated by carbonates with minor siltstones, sandstones and oil shales. Dolomite and Permian sandstone fragments are present in the allogenic breccia. Carbonates are brecciated with | 9/4/2009 | D. Rajmon |
Bigach, Kazakhstan | Bigach | - | Kazakhstan | Asia |   | - | - | 48.5774 | 82.0287 | 8 | 8 | - | 8 | 8 | 5 ± 3 | 2 | 5 | 8 | 3 | - |   |   | Y | Iss | - | - | Slightly angular structure with 30-70 m high rim above flat bottom, about 8 km in diameter. The target rocks are Devonian sandstones, siltstones, andesites, basalts, dacites, rhyolites, their tuffs and other rocks folded striking NW and cut by numerous faults. These are cut by dikes and small igneous bodies and overlain by up to 200-300 m of Miocene and Lower Pliocene clays. Interior of the structure is filled with Quaternary sands and gravel. Gravity data show negative anomaly, magnetic data in | 10/4/2009 | D. Rajmon |
Bloody Creek, Canada, Nova Scotia | Bloody Creek | Nova Scotia | Canada | North America |   | - | - | 44.75 | -65.2431 | - | 0.35x0.42 | - | 0.35x0.42 | 0.4 | 372-0.012, Plio-pleistocene? | 0.012 | - | 372 | - | stratigraphic |   | <10 | N | G?, I |   | - | Bloody Creek structure is an elliptical 0.35 x 0.42 km diameter NW trending depression, 10 m deep, rimmed by a continuous low scarp and filled with lacustrine and wetland sediments. The structure formed within the medium- to coarse-grained biotite monzogranite of the Scrag Lake pluton, the older group of the 388-372 Ma South Mountain Batholith. The area has been glaciated, has a low relief and is mostly covered by <5 m thick till, wetland, lake and forest. The structure is now flooded by a dam a | 2/11/2009 | D. Rajmon |
Boltysh, Ukraine | Boltysh | - | Ukraine | Europe |   | - | - | 48.95 | 32.285 | - | 24 | - | 24 | 24 | 65.17 ± 0.64 | 64.53 | 65.17 | 65.81 | 0.64 | 95% conf. | 30 |   | Y | IM |   | - | Complex impact structure ~24 km in diameter buried under ~30 m of Quaternary sediments with poor surface morphologic expression. Target rocks include Kirovograd porphyroblastic granite (~1550 Ma) and minor biotite gneisses (1850-2220 Ma). Central uplift is 4 km in diameter at a flat top and records ~600 m stratigraphic uplift. The central uplift is surrounded by a deep annular basin ~12 km in diameter and a peripheral depression around the inner deep basin. Uplifted rim is exposed in the NW in t | 5/11/2009 | D. Rajmon |
Bosumtwi (= Ashanti), Ghana, Ashanti | Bosumtwi (= Ashanti) | Ashanti | Ghana | Africa |   | x | - | 6.5 | -1.4166666666667 | - | - | - | 10.5 | 10.5 | 1.07 | 0.963 | 1.07 | 1.177 | - | 0.1 |   | - | N | - | - | Iron / non chondrite carbonaceous? | Data from (EID, 2009). Region entry from (Koeberl et al., 1999). Projectile from Tagle and Hecht (2006). References: EID (2009) Earth Impact Database. 13 April 2009. http://www.unb.ca/passc/ImpactDatabase Koeberl C., Mcdonald I. and Reimold W. U. (1999) Extraterrestrial component in impact breccia at the Bosumtwi impact structure, Ghana. Meteoritics and Planetary Science 34(4, Supplement):A66. http://www.lpi.usra.edu/meetings/metsoc99/pdf/5156.pdf Tagle R. and Hecht L. (2006) Geochemical id | 14/6/2009 | D. Rajmon |
Boxhole, Australia, Northern Territory | Boxhole | Northern Territory | Australia | Australia |   | - | - | -22.61265 | 135.19544 | - | - | - | 0.17-0.19 | 0.18 | ~0.03 | 0.027 | 0.03 | 0.033 | - | 0.1 |   |   | N | M, Ss |   | iron IIIA | Simple structure with raised rim ~170-190 m in diameter on a flank of a ridge. The target includes steeply dipping Palaeoproterozoic gneiss, schists and quartz vein, and pre-crater colluvium. Ejecta are preserved around the crater up to 300 m away (Shoemaker et al., 2005). Iron projectile yielded cosmogenic C-14 age of 0.00540 ± 0.0015 Ma (Kohman and Goel, 1963 in Shoemaker et al., 2005); erroneously listed in (EID, 2009) as 0.0540 ± 0.0015 Ma. 10Be-26Al exposure age of a quartz vein and an ej | 19/4/2009 | D. Rajmon |
Brent, Canada, Ontario | Brent | Ontario | Canada | North America |   | x | - | 46.083333333333 | -78.483333333333 | - | - | - | 3.8 | 3.8 | 396 ± 20 | 376 | 396 | 416 | 20 | - | buried | - | Y | - | - | chondrite ordinary L or LL | Data from (EID, 2009). Projectile from Tagle and Hecht (2006). References: EID (2009) Earth Impact Database. 13 April 2009. http://www.unb.ca/passc/ImpactDatabase Tagle R. and Hecht L. (2006) Geochemical identification of projectiles in impact rocks. Meteoritics & Planetary Science 41(11):1721-1735. http://digitalcommons.library.arizona.edu/objectviewer?o=uadc%3A%2F%2Fazu_maps%2FVolume41%2FNumber11%2Fp1721-1735 | 14/6/2009 | D. Rajmon |
Campo Del Cielo, Argentina | Campo Del Cielo | - | Argentina | South America |   | x | Campo Del Cielo | -27.633333333333 | -61.7 | - | - | - | 0.05 | 0.05 | < 0.004 | - | - | 0.004 | - | - |   | - | Y | - | - | - | Data from (EID, 2009). 9 craters with diameters 5 m to 100 m (references within Rappenglück et al., 2005). References: EID (2009) Earth Impact Database. 13 April 2009. http://www.unb.ca/passc/ImpactDatabase Rappenglück M. A., Ernstson K., Mayer W., Beer R., Benske G., Siegl C., Sporn R., Bliemetsrieder T. and Schüssler U. (2005) The Chiemgau impact event in the Celtic Period: evidence of a crater strewnfield and a cometary impactor containing presolar matter. 29 April 2005. article p. ht | 14/6/2009 | D. Rajmon |
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