296:
34:
196:
304:
1188:
1008:
203:
1194:
994:
322:. The crater has an uplifted central core, shaped like an elliptical basin, consisting of exposed basement granite. Surrounding this core is a ring of shocked granite and overlying breccias; then another ring of ridges and mountains, 6.5 kilometres (4.0 mi) in diameter and up to 150 m (490 ft) high, consisting of folded and steeply tilted
465:. The estimated energy released by the Araguainha impact is insufficient to be a direct cause of the global mass extinction, but the colossal local earth rifting would have released huge amounts of oil and gas from the shattered rock. The resulting sudden global warming might have precipitated the
411:(1982) reported further petrological and mineralogical evidence of the impact. Further geomorphologic evidence was published by Theilen-Willige (1981). A magnetic survey was conducted by Fischer and Masero (1994).
286:
basement rocks. It is estimated that the crater was initially 24 kilometres (15 mi) wide and 2.4 kilometres (1.5 mi) deep, which then widened to 40 kilometres (25 mi) as its walls subsided inwards.
430:. (1992) published a detailed study of the uplifted core and a revised date of about 246 million years ago, later revised to about 244 million years ago. Most recently it was dated by Tohver
937:
Tohver, E.; Lana, C.; Cawood, P.A.; Fletcher, I.R.; Jourdan, F.; Sherlock, S.; et al. (1 June 2012). "Geochronological constraints on the age of a Permo–Triassic impact event: U–Pb and Ar
664:
Silveira Filho, N.C.; Ribeiro, C.L. (1971). Informações geológicas preliminares sobre a estrutura vulcânica de
Araguainha, Mato Grosso (relatório interno). DNPM / Distrito Centro-Leste.
330:
sandstone formations. The outer rim of the crater consists of remnants of semi-circular grabens in highly deformed Permo-Carboniferous sediments. Evidences of impact origin include
400:
and French (1973) reported the occurrence of impact breccias and shocked quartz, and recognized the structure as an impact crater. A detailed study of the crater by
1091:
120:
1685:
815:
754:
976:
1665:
1039:
1147:
870:
Deutsch, A.; Buhl, D.; Langenhorst, F. (1992). "On the significance of crater ages: New ages for Dellen (Sweden) and
Araguainha (Brazil)".
1177:
1167:
1162:
905:
Engelhardt, W. v.; Matthäi, S.K.; Walzebuck, J. (1992). "Araguainha impact crater, Brazil. 1. The interior part of the uplift".
1142:
1084:
1152:
1051:
615:
538:
466:
455:
264:
75:
564:"Shaking a methane fizz: Seismicity from the Araguainha impact event and the Permian–Triassic global carbon isotope record"
1157:
1137:
1172:
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1100:
1077:
831:"Rotational properties of the magnetotelluric impendance tensor – the example of the Araguainha impact crater, Brazil"
1670:
1655:
1454:
318:
Araguainha is a complex crater with annular and radial faults, exposed to the surface and eroded, cut through by the
195:
311:
image of
Araguainha crater draped over digital elevation model (5× vertical exaggeration); screen capture from
1660:
485:
263:
years ago, when the region was probably a shallow sea. The margins of error of this date overlap the time of the
253:
1650:
295:
1675:
645:
Northfleet, A.A.; Medeiros, R.A.; Muhlmann, H. (1969). "Reavaliação dos dados geológicos da Bacia do Paraná".
1622:
1358:
1353:
1258:
33:
1565:
1393:
1378:
1298:
1243:
113:
563:
358:. An unpaved state road, between Ponte Branca and Araguainha, cuts across the central uplift, as does the
326:
sandstones. This central region is surrounded by an annular depression floored by rocks from
Devonian and
1514:
1413:
1238:
1223:
768:
611:
495:
408:
401:
1680:
1617:
1408:
1403:
1363:
1323:
722:
1398:
1233:
454:
years ago, places the impact at dates overlapping estimates for the Permo-Triassic boundary. and the
419:
362:. As of 1999, the local residents were not yet aware of the dome's nature and scientific importance.
1587:
1338:
1208:
614:(1 July 1999). Schobbenhaus, C.; Campos, D.A.; Queiroz, E.T.; Winge, M.; Berbert-Born, M. (eds.).
562:
Tohver, Eric; Cawood, P. A.; Riccomini, Claudio; Lana, Cris; Trindade, R. I. F. (1 October 2013).
516:
384:. A geological reconnaissance survey by Silveira Filho and Ribeiro (1971) noted the occurrence of
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268:
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842:
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520:
8:
1213:
68:
1055:
954:
883:
846:
691:
623:
579:
1524:
1429:
918:
855:
830:
703:
544:
1328:
1288:
773:
Mapeamento geológico do Domo de
Araguainha utilizando técnicas de sensoriamento remoto
1577:
1383:
1333:
1318:
891:
548:
534:
517:"Trigger Effect of an Asteroidal or Cometary Impact at the Permian–Triassic Boundary"
396:
around the central core and deduced that
Araguainha was a crypto-volcanic structure.
1313:
1602:
1474:
1308:
1253:
1248:
958:
914:
887:
850:
795:
734:
707:
695:
583:
526:
374:. (1969), who interpreted it as an uplift of the Phanerozoic sediments caused by a
775:(Mestrado). São José dos Campos: Instituto Nacional de Pesquisas Espaciais (INPE).
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800:
276:
106:
1529:
1489:
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1449:
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786:
Theilen-Willige, B. (1981). "The
Araguainha impact structure, Central Brazil".
359:
339:
335:
319:
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962:
525:. Springer Proceedings in Earth and Environmental Sciences. pp. 589–596.
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229:
135:
122:
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The earliest report on the
Araguainha structure was published by Northfleet
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183:
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Planetary and Space
Science Centre University of New Brunswick Fredericton
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233:
169:
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1434:
941:
Ar results for the 40 km
Araguainha structure of central Brazil".
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View of part of the central peak complex, by Geraldo C. F. Valadares.
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977:"Biggest extinction in history caused by climate-changing meteor"
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378:
308:
283:
38:
983:(Press release). University of Western Australia. 31 July 2013.
155:
678:; French, B.M. (1973). "Two probable astroblemes in Brazil".
616:"Araguainha dome - The largest astrobleme in South America"
393:
385:
723:"Feições de metamorfismo de impacto no Domo de Araguainha"
657:
561:
515:
Svetsov, Vladimir; Shuvalov, Valery (17 November 2019).
674:
828:
989:
785:
721:Crósta, A.P.; Gaspar, J.C.; Candia, M.A.F. (1981).
822:
610:
568:Palaeogeography, Palaeoclimatology, Palaeoecology
1642:
519:. In Kocharyan, Gevorg; Lyakhov, Andrey (eds.).
898:
668:
514:
350:The Araguainha Dome can be reached by car from
271:in Earth's history. The impact punched through
932:
930:
928:
638:
508:
1099:
1085:
814:: CS1 maint: DOI inactive as of March 2024 (
753:: CS1 maint: DOI inactive as of March 2024 (
620:Sítios Geológicos e Paleontológicos do Brasil
606:
604:
478:
863:
767:
365:
254:largest known impact crater in South America
925:
259:The crater has most recently been dated to
1092:
1078:
1040:"Satellite image of the Araguainha region"
601:
345:
854:
799:
761:
738:
714:
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252:of 40 kilometres (25 mi), it is the
202:
41:image of the Araguainha crater (May 2020)
1686:First 100 IUGS Geological Heritage Sites
302:
294:
240:states, Brazil, between the villages of
279:formations, and exposed the underlying
1643:
1073:
414:Dome formation was first dated (at
275:sedimentary units belonging to the
13:
919:10.1111/j.1945-5100.1992.tb00226.x
856:10.1111/j.1365-246X.1994.tb00141.x
14:
1697:
1666:Permian–Triassic extinction event
1020:
835:Geophysical Journal International
788:Revista Brasileira de Geociências
727:Revista Brasileira de Geociências
456:Permian–Triassic extinction event
265:Permian–Triassic extinction event
1192:
1186:
1006:
992:
829:Fischer, G.; Masero, W. (1994).
210:Location of the crater in Brazil
201:
194:
32:
969:
943:Geochimica et Cosmochimica Acta
779:
290:
1:
1623:Lunar and Planetary Institute
1455:Cretaceous–Paleogene boundary
740:10.25249/0375-7536.1981139146
522:Trigger Effects in Geosystems
472:
892:10.1016/0040-1951(92)90167-5
647:Boletim Técnico da Petrobrás
588:10.1016/j.palaeo.2013.07.010
531:10.1007/978-3-030-31970-0_62
7:
1515:Planar deformation features
801:10.25249/0375-7536.19819197
467:Permian–Triassic extinction
461:Much of the local rock was
10:
1702:
1618:Impact Field Studies Group
441:
1553:
1422:
1201:
1184:
1125:
1107:
1101:Impact cratering on Earth
963:10.1016/j.gca.2012.03.005
366:Dating and interpretation
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151:
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97:
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76:Permian–Triassic boundary
67:
59:
51:
46:
31:
26:
21:
1671:Landforms of Mato Grosso
1656:Impact craters of Brazil
1588:William Kenneth Hartmann
1254:Clearwater East and West
1202:Confirmed≥20 km diameter
446:Recent dating by Tohver
1505:Ordovician meteor event
346:Access and conservation
63:40 km (25 mi)
47:Impact crater/structure
16:Impact crater in Brazil
1661:Permian impact craters
1608:Eugene Merle Shoemaker
1485:Late Heavy Bombardment
804:(inactive 2024-03-11).
743:(inactive 2024-03-11).
315:
300:
269:mass extinction events
1651:Earth Impact Database
1629:Traces of Catastrophe
1613:Earth Impact Database
1561:Ralph Belknap Baldwin
1032:Earth Impact Database
491:Earth Impact Database
426:. (1992). Engelhardt
306:
298:
267:, one of the largest
955:2012GeCoA..86..214T
884:1992Tectp.216..205D
847:1994GeoJI.119..548F
692:1973Natur.244..561D
580:2013PPP...387...66T
452:254.7 ± 2.5 million
436:254.7 ± 2.5 million
261:254.7 ± 2.5 million
132: /
1676:Landforms of Goiás
1525:Shock metamorphism
1430:Alvarez hypothesis
316:
301:
1681:Geology of Brazil
1638:
1637:
1578:Edward C. T. Chao
1052:"Araguainha dome"
686:(5418): 561–562.
612:Crósta, Álvaro P.
540:978-3-030-31969-4
232:on the border of
222:Araguainha crater
218:
217:
136:16.800°S 52.983°W
22:Araguainha crater
1693:
1603:Peter H. Schultz
1566:Daniel Barringer
1475:Impact structure
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1054:. Archived from
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878:(1–2): 205–218.
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700:10.1038/244561a0
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418:years ago, with
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141:-16.800; -52.983
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1583:Robert S. Dietz
1571:Barringer Medal
1549:
1460:Cryptoexplosion
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1329:Nördlinger Ries
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1148:Asia and Russia
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626:on 25 June 2013
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1058:on 2013-06-25
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450:. (2012), to
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332:shatter cones
329:
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1627:
1598:Graham Ryder
1520:Shatter cone
1510:Philippinite
1359:Saint Martin
1354:Rochechouart
1259:Gosses Bluff
1218:
1214:Amelia Creek
1117:Impact event
1060:. Retrieved
1056:the original
1043:
1031:
1028:"Araguainha"
980:
971:
946:
942:
938:
910:
906:
900:
875:
871:
865:
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834:
824:
810:cite journal
794:(2): 91–97.
791:
787:
781:
772:
769:Crósta, A.P.
763:
749:cite journal
730:
726:
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683:
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650:
646:
640:
628:. Retrieved
624:the original
619:
591:. Retrieved
571:
567:
557:
521:
510:
499:. Retrieved
489:
486:"Araguainha"
480:
460:
447:
445:
434:. (2012) at
431:
427:
423:
420:Rb-Sr method
413:
404:
371:
369:
349:
317:
277:Paraná Basin
258:
246:Ponte Branca
225:
221:
219:
184:Ponte Branca
176:Municipality
107:Paraná Basin
1394:Tookoonooka
1379:Steen River
1369:Siljan Ring
1299:Manicouagan
1284:Keurusselkä
1044:Google Maps
949:: 214–227.
913:: 442–457.
907:Meteoritics
676:Dietz, R.S.
593:29 November
438:years ago.
291:Description
234:Mato Grosso
170:Mato Grosso
139: /
114:Coordinates
1645:Categories
1535:Stishovite
1435:Australite
1414:Yarrabubba
1384:Strangways
1344:Presqu'île
1319:Montagnais
1289:Lappajärvi
1239:Charlevoix
1224:Beaverhead
1219:Araguainha
1173:By country
1143:Antarctica
1062:2014-01-29
653:: 291–346.
630:29 January
501:2017-10-09
473:References
376:Cretaceous
281:Ordovician
242:Araguainha
180:Araguainha
52:Confidence
1500:Moldavite
1495:Meteorite
1480:Impactite
1409:Woodleigh
1404:Vredefort
1364:Shoemaker
1324:Morokweng
1309:Mistastin
1249:Chicxulub
1153:Australia
1133:Worldwide
574:: 66–75.
549:210344171
463:oil shale
382:intrusion
273:Paleozoic
248:. With a
55:Confirmed
1554:Research
1399:Tunnunik
1294:Logancha
1264:Haughton
1234:Carswell
1178:Possible
771:(1982).
390:breccias
354:or from
324:Devonian
307:Oblique
250:diameter
103:Location
98:Location
60:Diameter
1545:Tektite
1540:Suevite
1445:Coesite
1440:Breccia
1389:Sudbury
1339:Popigai
1334:Obolon'
1314:Mjølnir
1279:Karakul
1269:Kamensk
1229:Boltysh
1209:Acraman
951:Bibcode
880:Bibcode
843:Bibcode
708:4167202
688:Bibcode
576:Bibcode
442:Effects
379:syenite
352:Goiânia
309:Landsat
284:granite
152:Country
127:52°59′W
124:16°48′S
90:Drilled
82:Exposed
39:Landsat
1423:Topics
1304:Manson
1158:Europe
1138:Africa
706:
680:Nature
547:
537:
409:Crósta
402:Crósta
392:, and
356:Cuiabá
338:, and
228:is an
182:&
156:Brazil
1126:Lists
704:S2CID
545:S2CID
448:et al
432:et al
428:et al
424:et al
405:et al
398:Dietz
394:tuffs
386:lavas
372:et al
238:Goiás
166:Goiás
162:State
1274:Kara
816:link
755:link
632:2014
595:2022
535:ISBN
244:and
236:and
220:The
959:doi
915:doi
888:doi
876:216
851:doi
839:119
796:doi
735:doi
696:doi
684:244
584:doi
572:387
527:doi
224:or
85:Yes
69:Age
1647::
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