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Tswaing crater

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and between 50,000 and 39,000 BP. In contrast, intervals of high aridity occurred around 76,000 BP, from 73,000 to 69,000 BP, from 55,000 to 51,000 BP, and from 31,400 to 12,600 BP. Since 84,000 BP, the vegetation of the region around the lake has been dominated by savanna-type plants.
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A scientific dispute was ongoing regarding the origin of the crater between supporters of volcanic origin (Wagner, 1922) and those who believed it is an impact crater (Rohleder, 1933) until 1990, when examination of the core from a borehole proved that it is an impact crater.
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show that the crater was regularly visited by people from as far back as 100,000 years ago in order to hunt and collect salt. Water in the crater comes from surface springs, ground water and rain water and is rich in dissolved
813:"Biocoenosis response to hydrological variability in Southern Africa during the last 84 ka BP: A study of lipid biomarkers and compound-specific stable carbon and hydrogen isotopes from the hypersaline Lake Tswaing" 1848: 1888: 1858: 1933: 1893: 357:
Lipid biomarkers and carbon and hydrogen isotopic ratios from the lake indicate the existence of regional humid climatic periods between 84,000 and 80,000 years
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between 1200 and 1800. Between 1912 and 1956 brine was pumped from the floor of the crater by the company
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is 1.13 km in diameter and 100 m deep and its age is estimated to be 220,000 ± 52,000 years (
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province, South Africa. The crater and reserve are situated on a base of ancient granite of the
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Planetary and Space Science Centre University of New Brunswick Fredericton
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some 30 to 50 m in diameter that was vaporised during the impact event.
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Hartebeesthoek Radio Astronomy Observatory writeup on the crater
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who showed that craters such as Tswaing are formed by impact.
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and the crater was also formerly known in English as the
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Schmidt, F.; Oberhänsli, H.; Wilkes, H. (January 2014).
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National Museum of Natural History (Transvaal Museum)
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National Museum of Cultural History (African Window)
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The impactor is believed to have been a 1636: 1622: 1543: 1529: 972: 958: 945:City of Tswhane - Tswaing Meteorite Crater 27: 607:The impact crater is accompanied by the 245: 2128:Natural history museums in South Africa 758:"Tswaing and its environmental effects" 731: 685: 614: 2105: 752: 750: 681: 679: 677: 675: 673: 219: 186: 153: 1617: 1524: 953: 273:nature reserve, situated in northern 352: 1806:Willem Prinsloo Agricultural Museum 1603:Willem Prinsloo Agricultural Museum 1568:National Museum of Cultural History 747: 692:Meteoritics & Planetary Science 670: 399:in order to extract soda and salt. 71:30 to 50 m (98 to 164 ft) 13: 1909:Pretoria National Botanical Garden 1573:National Museum of Natural History 734:"Meteorites and Meteorite Craters" 712:10.1111/j.1945-5100.1999.tb01399.x 313:, another South African crater of 166:Asteroid impact location in Africa 14: 2144: 928: 33:Tswaing crater as seen from above 1072: 1066: 871:. Wondermondo. 11 February 2013. 658:List of impact craters in Africa 637: 452: 430:Crater seen from its eastern rim 424: 218: 211: 185: 178: 152: 145: 2001:Metropolitan routes in Pretoria 1889:Solomon Mahlangu Freedom Square 1859:Fort Klapperkop Military Museum 1796:Tswaing Meteorite Crater Museum 1552:Ditsong Museums of South Africa 887:Ditsong Museums of South Africa 839:10.1016/j.gloplacha.2013.11.004 551:Ditsong Museums of South Africa 323:Ditsong Museums of South Africa 2118:Impact craters of South Africa 899: 875: 861: 852: 804: 774: 725: 417: 1: 1503:Lunar and Planetary Institute 1335:Cretaceous–Paleogene boundary 762:Lunar and Planetary Institute 663: 16:Impact crater in South Africa 732:Reimold, W.U. (1998-04-27). 619:Tswaing is currently on the 328: 7: 1395:Planar deformation features 858:Tswaing information leaflet 818:Global and Planetary Change 686:Koeberl, Christian (1999). 630: 516:Onderstepoort Road ( M35), 317:origin, lies north-west of 265:for "place of salt") is an 55:1.13 km (0.70 mi) 10: 2149: 2123:Pleistocene impact craters 1498:Impact Field Studies Group 883:"Tswaing Meteorite Crater" 365: 311:Morokweng impact structure 2079: 1983: 1947: 1901: 1867: 1757: 1704: 1659: 1558: 1433: 1302: 1081: 1064: 1005: 987: 981:Impact cratering on Earth 557: 549: 527: 512: 504: 465: 439: 435: 423: 416: 406: 337:means "place of salt" in 281:, some 40 km to the 139: 129: 90: 85: 75: 67: 59: 51: 43: 38: 26: 21: 2092:Statue of Nelson Mandela 1593:Tswaing Meteorite Crater 1468:William Kenneth Hartmann 1134:Clearwater East and West 1082:Confirmed≥20 km diameter 935:Tswaing Meteorite Crater 592:Tswaing Meteorite Crater 412:Tswaing Meteorite Crater 279:Bushveld Igneous Complex 199:Tswaing crater (Gauteng) 169:Show map of South Africa 63:100 m (330 ft) 1849:Police Transport Museum 1385:Ordovician meteor event 704:1999M&PS...34..827K 623:for consideration as a 611:Tswaing Crater Museum. 489:25.408486°S 28.082529°E 343:Pretoria Saltpan crater 232:Tswaing crater (Africa) 39:Impact crater/structure 1834:Van Tilburg Collection 1749:Sacred Heart Cathedral 1488:Eugene Merle Shoemaker 1365:Late Heavy Bombardment 255: 252:Eugene Merle Shoemaker 2113:Earth Impact Database 2087:Statue of Paul Kruger 1824:Mapungubwe Collection 1509:Traces of Catastrophe 1493:Earth Impact Database 1441:Ralph Belknap Baldwin 787:Earth Impact Database 513:Public transit access 494:-25.408486; 28.082529 370:Stone tools from the 249: 114:25.40889°S 28.08278°E 1991:Ben Schoeman Freeway 1724:Voortrekker Monument 615:Status of protection 577:Agricultural History 345:and in Afrikaans as 269:enclosed by a 1,946 2133:Museums in Pretoria 1868:Streets and squares 1854:Pretoria Art Museum 831:2014GPC...112...92S 645:South Africa portal 625:World Heritage Site 485: /  413: 202:Show map of Gauteng 119:-25.40889; 28.08278 110: /  1879:Sammy Marks Square 1791:Sammy Marks Museum 1714:Pretoria City Hall 1588:Sammy Marks Museum 1405:Shock metamorphism 1310:Alvarez hypothesis 587:Sammy Marks Museum 541:/tswaing-meteorite 411: 256: 235:Show map of Africa 2100: 2099: 1939:Pretoria Rosarium 1902:Parks and gardens 1814: 1813: 1739:Palace of Justice 1611: 1610: 1518: 1517: 1458:Edward C. T. Chao 605: 604: 353:Palaeoclimatology 244: 243: 68:Impactor diameter 2140: 2030:Regional routes 2018:Platinum Highway 2005:National routes 1960:Fountains Valley 1884:Pretorius Square 1844:Air Force Museum 1764: 1763: 1638: 1631: 1624: 1615: 1614: 1545: 1538: 1531: 1522: 1521: 1483:Peter H. Schultz 1446:Daniel Barringer 1355:Impact structure 1076: 1070: 974: 967: 960: 951: 950: 922: 921: 919: 918: 903: 897: 896: 894: 893: 879: 873: 872: 869:"Tswaing crater" 865: 859: 856: 850: 849: 847: 845: 808: 802: 801: 799: 798: 778: 772: 771: 769: 768: 754: 745: 744: 742: 741: 729: 723: 722: 720: 718: 683: 647: 642: 641: 640: 572:Cultural History 567:Military History 545: 542: 540: 538: 536: 534: 500: 499: 497: 496: 495: 490: 486: 483: 482: 481: 478: 458: 456: 455: 428: 414: 410: 381:sodium chlorides 372:Middle Stone Age 236: 222: 221: 215: 203: 189: 188: 182: 170: 156: 155: 149: 125: 124: 122: 121: 120: 115: 111: 108: 107: 106: 103: 31: 19: 18: 2148: 2147: 2143: 2142: 2141: 2139: 2138: 2137: 2103: 2102: 2101: 2096: 2075: 1996:Pretoria Bypass 1979: 1948:Nature reserves 1943: 1897: 1863: 1839:Van Wouw Museum 1810: 1768:Ditsong Museums 1753: 1719:Union Buildings 1700: 1655: 1642: 1612: 1607: 1554: 1549: 1519: 1514: 1463:Robert S. Dietz 1451:Barringer Medal 1429: 1340:Cryptoexplosion 1298: 1229:Puchezh-Katunki 1209:Nördlinger Ries 1077: 1071: 1062: 1028:Asia and Russia 1001: 983: 978: 931: 926: 925: 916: 914: 905: 904: 900: 891: 889: 881: 880: 876: 867: 866: 862: 857: 853: 843: 841: 809: 805: 796: 794: 780: 779: 775: 766: 764: 756: 755: 748: 739: 737: 730: 726: 716: 714: 684: 671: 666: 643: 638: 636: 633: 617: 601: 562:Natural History 531: 508:Natural history 493: 491: 487: 484: 479: 476: 474: 472: 471: 453: 451: 431: 419: 418:"Place of Salt" 409: 368: 355: 331: 307:stony meteorite 289:(just north of 283:north-northwest 240: 239: 238: 237: 234: 233: 230: 229: 228: 227: 223: 206: 205: 204: 201: 200: 197: 196: 195: 194: 190: 173: 172: 171: 168: 167: 164: 163: 162: 161: 157: 118: 116: 112: 109: 104: 101: 99: 97: 96: 34: 17: 12: 11: 5: 2146: 2136: 2135: 2130: 2125: 2120: 2115: 2098: 2097: 2095: 2094: 2089: 2083: 2081: 2077: 2076: 2074: 2073: 2072: 2071: 2066: 2061: 2056: 2051: 2046: 2041: 2036: 2028: 2027: 2026: 2021: 2011: 2003: 1998: 1993: 1987: 1985: 1981: 1980: 1978: 1977: 1972: 1967: 1962: 1957: 1951: 1949: 1945: 1944: 1942: 1941: 1936: 1934:Springbok Park 1931: 1926: 1921: 1916: 1911: 1905: 1903: 1899: 1898: 1896: 1891: 1886: 1881: 1876: 1871: 1869: 1865: 1864: 1862: 1861: 1856: 1851: 1846: 1841: 1836: 1831: 1826: 1821: 1815: 1812: 1811: 1809: 1808: 1803: 1798: 1793: 1788: 1786:Pionier Museum 1783: 1778: 1772: 1770: 1761: 1755: 1754: 1752: 1751: 1746: 1741: 1736: 1731: 1729:Pretoria Forts 1726: 1721: 1716: 1710: 1708: 1702: 1701: 1699: 1698: 1693: 1688: 1683: 1678: 1677: 1676: 1666: 1660: 1657: 1656: 1641: 1640: 1633: 1626: 1618: 1609: 1608: 1606: 1605: 1600: 1595: 1590: 1585: 1583:Pionier Museum 1580: 1575: 1570: 1564: 1562: 1556: 1555: 1548: 1547: 1540: 1533: 1525: 1516: 1515: 1513: 1512: 1505: 1500: 1495: 1490: 1485: 1480: 1475: 1470: 1465: 1460: 1455: 1454: 1453: 1443: 1437: 1435: 1431: 1430: 1428: 1427: 1422: 1417: 1412: 1410:Shocked quartz 1407: 1402: 1397: 1392: 1387: 1382: 1377: 1372: 1370:Lechatelierite 1367: 1362: 1357: 1352: 1347: 1345:Ejecta blanket 1342: 1337: 1332: 1330:Complex crater 1327: 1322: 1317: 1312: 1306: 1304: 1300: 1299: 1297: 1296: 1291: 1286: 1281: 1276: 1271: 1266: 1261: 1256: 1251: 1246: 1241: 1236: 1231: 1226: 1221: 1216: 1211: 1206: 1201: 1196: 1191: 1186: 1181: 1176: 1171: 1166: 1161: 1156: 1151: 1146: 1141: 1136: 1131: 1126: 1124:Chesapeake Bay 1121: 1116: 1111: 1106: 1101: 1096: 1091: 1085: 1083: 1079: 1078: 1065: 1063: 1061: 1060: 1055: 1050: 1045: 1040: 1035: 1030: 1025: 1020: 1015: 1009: 1007: 1003: 1002: 1000: 999: 994: 988: 985: 984: 977: 976: 969: 962: 954: 948: 947: 942: 937: 930: 929:External links 927: 924: 923: 898: 874: 860: 851: 803: 773: 746: 724: 668: 667: 665: 662: 661: 660: 655: 649: 648: 632: 629: 621:tentative list 616: 613: 603: 602: 600: 599: 594: 589: 584: 582:Pionier Museum 579: 574: 569: 564: 558: 555: 554: 547: 546: 529: 525: 524: 514: 510: 509: 506: 502: 501: 469: 463: 462: 441: 437: 436: 433: 432: 429: 421: 420: 408: 405: 397:SA Alkali Ltd. 367: 364: 354: 351: 330: 327: 242: 241: 231: 226:Tswaing crater 225: 224: 217: 216: 210: 209: 208: 207: 198: 193:Tswaing crater 192: 191: 184: 183: 177: 176: 175: 174: 165: 160:Tswaing crater 159: 158: 151: 150: 144: 143: 142: 141: 140: 137: 136: 131: 127: 126: 94: 88: 87: 83: 82: 79: 73: 72: 69: 65: 64: 61: 57: 56: 53: 49: 48: 45: 41: 40: 36: 35: 32: 24: 23: 22:Tswaing crater 15: 9: 6: 4: 3: 2: 2145: 2134: 2131: 2129: 2126: 2124: 2121: 2119: 2116: 2114: 2111: 2110: 2108: 2093: 2090: 2088: 2085: 2084: 2082: 2078: 2070: 2067: 2065: 2062: 2060: 2057: 2055: 2052: 2050: 2047: 2045: 2042: 2040: 2037: 2035: 2032: 2031: 2029: 2025: 2022: 2019: 2015: 2012: 2010: 2007: 2006: 2004: 2002: 1999: 1997: 1994: 1992: 1989: 1988: 1986: 1982: 1976: 1973: 1971: 1968: 1966: 1963: 1961: 1958: 1956: 1953: 1952: 1950: 1946: 1940: 1937: 1935: 1932: 1930: 1927: 1925: 1922: 1920: 1917: 1915: 1912: 1910: 1907: 1906: 1904: 1900: 1895: 1892: 1890: 1887: 1885: 1882: 1880: 1877: 1875: 1874:Church Square 1872: 1870: 1866: 1860: 1857: 1855: 1852: 1850: 1847: 1845: 1842: 1840: 1837: 1835: 1832: 1830: 1829:Melrose House 1827: 1825: 1822: 1820: 1817: 1816: 1807: 1804: 1802: 1799: 1797: 1794: 1792: 1789: 1787: 1784: 1782: 1779: 1777: 1774: 1773: 1771: 1769: 1765: 1762: 1760: 1756: 1750: 1747: 1745: 1742: 1740: 1737: 1735: 1734:State Theatre 1732: 1730: 1727: 1725: 1722: 1720: 1717: 1715: 1712: 1711: 1709: 1707: 1703: 1697: 1694: 1692: 1689: 1687: 1684: 1682: 1679: 1675: 1672: 1671: 1670: 1667: 1665: 1662: 1661: 1658: 1654: 1650: 1646: 1639: 1634: 1632: 1627: 1625: 1620: 1619: 1616: 1604: 1601: 1599: 1598:Kruger Museum 1596: 1594: 1591: 1589: 1586: 1584: 1581: 1579: 1576: 1574: 1571: 1569: 1566: 1565: 1563: 1561: 1557: 1553: 1546: 1541: 1539: 1534: 1532: 1527: 1526: 1523: 1511: 1510: 1506: 1504: 1501: 1499: 1496: 1494: 1491: 1489: 1486: 1484: 1481: 1479: 1476: 1474: 1473:H. Jay Melosh 1471: 1469: 1466: 1464: 1461: 1459: 1456: 1452: 1449: 1448: 1447: 1444: 1442: 1439: 1438: 1436: 1432: 1426: 1423: 1421: 1418: 1416: 1413: 1411: 1408: 1406: 1403: 1401: 1398: 1396: 1393: 1391: 1388: 1386: 1383: 1381: 1378: 1376: 1373: 1371: 1368: 1366: 1363: 1361: 1358: 1356: 1353: 1351: 1350:Impact crater 1348: 1346: 1343: 1341: 1338: 1336: 1333: 1331: 1328: 1326: 1323: 1321: 1318: 1316: 1313: 1311: 1308: 1307: 1305: 1301: 1295: 1292: 1290: 1287: 1285: 1282: 1280: 1277: 1275: 1272: 1270: 1267: 1265: 1262: 1260: 1257: 1255: 1254:Slate Islands 1252: 1250: 1247: 1245: 1242: 1240: 1237: 1235: 1232: 1230: 1227: 1225: 1222: 1220: 1217: 1215: 1212: 1210: 1207: 1205: 1202: 1200: 1197: 1195: 1192: 1190: 1187: 1185: 1182: 1180: 1177: 1175: 1172: 1170: 1167: 1165: 1162: 1160: 1157: 1155: 1152: 1150: 1147: 1145: 1142: 1140: 1137: 1135: 1132: 1130: 1127: 1125: 1122: 1120: 1117: 1115: 1112: 1110: 1107: 1105: 1102: 1100: 1097: 1095: 1092: 1090: 1087: 1086: 1084: 1080: 1075: 1069: 1059: 1056: 1054: 1051: 1049: 1048:South America 1046: 1044: 1043:North America 1041: 1039: 1036: 1034: 1031: 1029: 1026: 1024: 1021: 1019: 1016: 1014: 1011: 1010: 1008: 1004: 998: 995: 993: 992:Impact crater 990: 989: 986: 982: 975: 970: 968: 963: 961: 956: 955: 952: 946: 943: 941: 938: 936: 933: 932: 912: 908: 902: 888: 884: 878: 870: 864: 855: 840: 836: 832: 828: 824: 820: 819: 814: 807: 793: 789: 788: 783: 777: 763: 759: 753: 751: 735: 728: 713: 709: 705: 701: 697: 693: 689: 682: 680: 678: 676: 674: 669: 659: 656: 654: 651: 650: 646: 635: 628: 626: 622: 612: 610: 598: 597:Kruger Museum 595: 593: 590: 588: 585: 583: 580: 578: 575: 573: 570: 568: 565: 563: 560: 559: 556: 552: 548: 544: 530: 526: 523: 519: 515: 511: 507: 503: 498: 470: 468: 464: 461: 449: 445: 442: 438: 434: 427: 422: 415: 404: 400: 398: 394: 390: 386: 382: 378: 373: 363: 360: 350: 348: 347:Soutpankrater 344: 340: 336: 326: 324: 320: 316: 312: 308: 304: 300: 296: 292: 288: 284: 280: 276: 272: 268: 267:impact crater 264: 260: 253: 248: 214: 181: 148: 138: 135: 132: 128: 123: 95: 93: 89: 84: 80: 78: 74: 70: 66: 62: 58: 54: 50: 46: 42: 37: 30: 25: 20: 1929:Heroes' Acre 1919:Magnolia Dal 1914:Burgers Park 1819:Freedom Park 1801:Kruger House 1795: 1653:South Africa 1507: 1478:Graham Ryder 1400:Shatter cone 1390:Philippinite 1239:Saint Martin 1234:Rochechouart 1139:Gosses Bluff 1094:Amelia Creek 997:Impact event 915:. 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Retrieved 695: 691: 653:Impact event 620: 618: 606: 591: 460:South Africa 401: 396: 369: 356: 346: 342: 334: 332: 258: 257: 250:Memorial to 134:South Africa 1975:Faerie Glen 1894:Time Square 1744:Ou Raadsaal 1274:Tookoonooka 1259:Steen River 1249:Siljan Ring 1179:Manicouagan 1164:Keurusselkä 492: / 467:Coordinates 299:Pleistocene 117: / 92:Coordinates 81:220 ± 52 Ka 2107:Categories 1970:Wonderboom 1965:Klapperkop 1955:Groenkloof 1681:Mass media 1415:Stishovite 1315:Australite 1294:Yarrabubba 1264:Strangways 1224:Presqu'Ă®le 1199:Montagnais 1169:Lappajärvi 1119:Charlevoix 1104:Beaverhead 1099:Araguainha 1053:By country 1023:Antarctica 917:2008-08-23 892:2023-06-28 825:: 92–104. 797:2009-08-16 767:2008-08-23 740:2008-08-23 664:References 518:Soshanguve 480:28°04′57″E 477:25°24′31″S 377:carbonates 295:astrobleme 291:Soshanguve 102:25°24′32″S 44:Confidence 1706:Buildings 1696:Transport 1664:Education 1380:Moldavite 1375:Meteorite 1360:Impactite 1289:Woodleigh 1284:Vredefort 1244:Shoemaker 1204:Morokweng 1189:Mistastin 1129:Chicxulub 1033:Australia 1013:Worldwide 844:7 January 782:"Tswaing" 393:decoction 333:The name 329:Etymology 315:chondrite 303:chondrite 105:28°4′58″E 47:Confirmed 1674:Timeline 1645:Pretoria 1434:Research 1279:Tunnunik 1174:Logancha 1144:Haughton 1114:Carswell 1058:Possible 631:See also 522:Pretoria 444:Pretoria 440:Location 293:). This 287:Pretoria 86:Location 52:Diameter 1759:Museums 1669:History 1649:Tshwane 1560:Museums 1425:Tektite 1420:Suevite 1325:Coesite 1320:Breccia 1269:Sudbury 1219:Popigai 1214:Obolon' 1194:Mjølnir 1159:Karakul 1149:Kamensk 1109:Boltysh 1089:Acraman 827:Bibcode 717:4 April 700:Bibcode 609:Ditsong 553:network 533:ditsong 528:Website 448:Gauteng 366:History 335:Tswaing 319:Vryburg 275:Gauteng 259:Tswaing 130:Country 1686:People 1303:Topics 1184:Manson 1038:Europe 1018:Africa 911:UNESCO 457:  407:Museum 385:Tswana 339:Tswana 263:Tswana 2080:Other 1984:Roads 1691:Sport 1006:Lists 389:Sotho 60:Depth 2069:R514 2064:R513 2059:R104 2054:R101 1154:Kara 846:2023 719:2023 535:.org 505:Type 387:and 379:and 2049:R80 2044:R55 2039:R50 2034:R21 2024:N14 835:doi 823:112 708:doi 539:/en 537:.za 305:or 285:of 77:Age 2109:: 2014:N4 2009:N1 1651:, 1647:, 909:. 885:. 833:. 821:. 815:. 790:. 784:. 760:. 749:^ 706:. 696:34 694:. 690:. 672:^ 627:. 520:, 450:, 446:, 383:. 359:BP 325:. 271:ha 2020:) 2016:( 1637:e 1630:t 1623:v 1544:e 1537:t 1530:v 973:e 966:t 959:v 920:. 895:. 848:. 837:: 829:: 800:. 770:. 743:. 721:. 710:: 702:: 543:/ 261:(

Index


Age
Coordinates
25°24′32″S 28°4′58″E / 25.40889°S 28.08278°E / -25.40889; 28.08278
South Africa
Tswaing crater is located in South Africa
Tswaing crater is located in Gauteng
Tswaing crater is located in Africa

Eugene Merle Shoemaker
Tswana
impact crater
ha
Gauteng
Bushveld Igneous Complex
north-northwest
Pretoria
Soshanguve
astrobleme
Pleistocene
chondrite
stony meteorite
Morokweng impact structure
chondrite
Vryburg
Ditsong Museums of South Africa
Tswana
BP
Middle Stone Age
carbonates

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