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West and Central African Rift System

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The West and Central Africa Rift System formed from the Early Cretaceous separation of Africa and South America. This rifting almost tore apart the African continent but instead formed a complex system of extensional, wrench and pull-apart basins. Such basins can be found from Nigeria and Cameroon on
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rift sub-systems, the West African Rift sub-system (WAS) and the Central African Rift sub-system (CAS). These are genetically related, but are physically separated and show structural differences. The
216:"The role that plate tectonics, inferred stress changes and stratigraphic unconformities have on the evolution of the West and Central African Rift System and the Atlantic continental margins" 141:"The Logone Birni Basin (LLB) in Northern Cameroon: Transition Between the West African Rift Sub-System (WAS) and the Central African Rift Sub-System (CAS); Tectonic and Geophysical Models" 326: 502: 791: 63:
the Atlantic, east into Chad and the Central African Republic, through Sudan to Kenya on the Indian Ocean and north of Lake Chad extending into southern Algeria.
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Fairhead, J. D.; Green, C. M.; Masterton, S. M.; Guiraud, R. (2013-05-24).
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Rift system in Africa composed of two Cretaceous-era sub-systems
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Early Cretaceous rift 130-98 Ma; Late Cretaceous rift 98-75 Ma
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There were five major tectonic phases that formed the WCARS:
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constitutes a transitional area between the two sub-systems.
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Maastrichtian-Paleogene rift and emergence 75-30 Ma
23:The West and Central African Rift System, with the 171:"Chapter 13: West and Central African Rift System" 73:Paleozoic-Jurassic platform development 550-130 Ma 175:Continental rifts:evolution, structure, tectonics 1149: 70:The Pan African Crustal consolidation 750-550 Ma 1132: 1079: 320: 168: 1139: 1125: 1086: 1072: 327: 313: 138: 139:Loule, Jean-Pierre; Lumbomil, Pospisil. 99: 18: 1150: 308: 260: 100:Bosworth, William (20 October 1992). 1095: 1038: 659:West and Central African Rift System 209: 207: 164: 162: 33:West and Central African Rift System 1107:This African location article is a 335:Major African geological formations 13: 14: 1194: 204: 159: 1099: 1042: 169:Olsen, K.H.; Morgan, P. (2006), 82:Neogene-Recent emergence 30-0 Ma 254: 132: 93: 1: 183:10.1016/s0419-0254(06)80005-4 86: 1111:. You can help Knowledge by 1058:. You can help Knowledge by 287:10.1016/0040-1951(92)90257-7 126:10.1016/0040-1951(92)90014-W 57: 50:The WCARS is older than the 7: 261:Genik, G. J. (1992-10-30). 240:10.1016/j.tecto.2013.03.021 177:, Elsevier, pp. 3–26, 10: 1199: 1158:Mesozoic rifts and grabens 1094: 1037: 473:Central African Shear Zone 25:Central African Shear Zone 973: 850:Central Pangean Mountains 810: 672: 579: 511: 503:Western Meseta Shear Zone 453: 391: 340: 145:AAPG Search and Discovery 52:East African Rift System 39:composed of two coeval 1183:Africa geography stubs 870:Eastern Rift mountains 792:Tanzania Coastal Basin 571:Terra Australis Orogen 28: 1178:Plate tectonics stubs 885:Great Karas Mountains 865:Eastern Arc Mountains 405:Arabian-Nubian Shield 22: 782:Somali Coastal Basin 493:Mwembeshi Shear Zone 960:Teffedest Mountains 875:Ethiopian Highlands 566:Pan-African orogens 536:East African Orogen 468:Broodkop Shear Zone 440:West African Craton 383:Victoria Microplate 279:1992Tectp.213..169G 232:2013Tectp.594..118F 118:1992Tectp.209..115B 1173:Cretaceous geology 1163:Structural geology 1024:List of inselbergs 994:Jugurtha Tableland 945:Sankwala Mountains 940:Rwenzori Mountains 757:Ouled Abdoun Basin 752:Orange River Basin 674:Sedimentary basins 483:Foumban Shear Zone 425:Saharan Metacraton 45:Logone Birni Basin 29: 1120: 1119: 1067: 1066: 1032: 1031: 965:Tibesti Mountains 925:Mitumba Mountains 915:Mandara Mountains 900:Imatong Mountains 855:Chaillu Mountains 835:Bambouk Mountains 772:Rio del Rey Basin 742:Niger Delta Basin 727:Iullemmeden Basin 619:Gulf of Suez Rift 614:East African Rift 599:Bahr el Arab rift 546:Gondwanide Orogen 478:Chuan Shear Zones 192:978-0-444-89566-0 1190: 1141: 1134: 1127: 1103: 1096: 1088: 1081: 1074: 1046: 1039: 920:Marrah Mountains 895:Hoggar Mountains 890:Guinea Highlands 880:Great Escarpment 644:Sangha Aulacogen 561:Mauritanide Belt 488:Kandi Fault Zone 463:Aswa Dislocation 378:Seychelles Plate 368:Madagascar Plate 329: 322: 315: 306: 305: 299: 298: 258: 252: 251: 211: 202: 201: 200: 199: 166: 157: 156: 154: 152: 136: 130: 129: 112:(1–4): 115–137. 97: 1198: 1197: 1193: 1192: 1191: 1189: 1188: 1187: 1168:Plate tectonics 1148: 1147: 1146: 1145: 1093: 1092: 1052:plate tectonics 1035: 1033: 1028: 989:Mount Gorongosa 969: 830:Aurès Mountains 825:Atlas Mountains 812:Mountain ranges 806: 692:Blue Nile Basin 668: 664:White Nile rift 575: 541:Eburnean Orogen 507: 498:Todi Shear Zone 449: 445:Zimbabwe Craton 430:Tanzania Craton 420:Kalahari Craton 415:Kaapvaal Craton 387: 336: 333: 303: 302: 259: 255: 212: 205: 197: 195: 193: 167: 160: 150: 148: 137: 133: 98: 94: 89: 60: 17: 12: 11: 5: 1196: 1186: 1185: 1180: 1175: 1170: 1165: 1160: 1144: 1143: 1136: 1129: 1121: 1118: 1117: 1104: 1091: 1090: 1083: 1076: 1068: 1065: 1064: 1047: 1030: 1029: 1027: 1026: 1021: 1016: 1011: 1009:Mont Niénokoué 1006: 1004:Mulanje Massif 1001: 996: 991: 986: 980: 978: 971: 970: 968: 967: 962: 957: 955:Serra da Chela 952: 947: 942: 937: 932: 930:Nuba Mountains 927: 922: 917: 912: 910:Loma Mountains 907: 902: 897: 892: 887: 882: 877: 872: 867: 862: 857: 852: 847: 842: 840:Blue Mountains 837: 832: 827: 822: 816: 814: 808: 807: 805: 804: 799: 794: 789: 787:Taoudeni Basin 784: 779: 774: 769: 764: 759: 754: 749: 744: 739: 734: 729: 724: 719: 714: 709: 704: 699: 694: 689: 684: 678: 676: 670: 669: 667: 666: 661: 656: 651: 646: 641: 636: 631: 626: 624:Lamu Embayment 621: 616: 611: 609:Blue Nile rift 606: 601: 596: 591: 585: 583: 577: 576: 574: 573: 568: 563: 558: 553: 551:Kibaran Orogen 548: 543: 538: 533: 528: 526:Cape Fold Belt 523: 517: 515: 509: 508: 506: 505: 500: 495: 490: 485: 480: 475: 470: 465: 459: 457: 451: 450: 448: 447: 442: 437: 432: 427: 422: 417: 412: 407: 401: 399: 389: 388: 386: 385: 380: 375: 370: 365: 359: 355:Minor plates: 353: 349:Major plates: 346: 344: 338: 337: 332: 331: 324: 317: 309: 301: 300: 273:(1): 169–185. 267:Tectonophysics 253: 220:Tectonophysics 203: 191: 158: 131: 106:Tectonophysics 91: 90: 88: 85: 84: 83: 80: 77: 74: 71: 59: 56: 15: 9: 6: 4: 3: 2: 1195: 1184: 1181: 1179: 1176: 1174: 1171: 1169: 1166: 1164: 1161: 1159: 1156: 1155: 1153: 1142: 1137: 1135: 1130: 1128: 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680: 679: 677: 675: 671: 665: 662: 660: 657: 655: 652: 650: 647: 645: 642: 640: 637: 635: 632: 630: 627: 625: 622: 620: 617: 615: 612: 610: 607: 605: 602: 600: 597: 595: 592: 590: 589:Afar Triangle 587: 586: 584: 582: 578: 572: 569: 567: 564: 562: 559: 557: 556:Kuunga Orogen 554: 552: 549: 547: 544: 542: 539: 537: 534: 532: 531:Damara Orogen 529: 527: 524: 522: 521:Alpine Orogen 519: 518: 516: 514: 510: 504: 501: 499: 496: 494: 491: 489: 486: 484: 481: 479: 476: 474: 471: 469: 466: 464: 461: 460: 458: 456: 452: 446: 443: 441: 438: 436: 435:Tuareg Shield 433: 431: 428: 426: 423: 421: 418: 416: 413: 411: 408: 406: 403: 402: 400: 398: 394: 390: 384: 381: 379: 376: 374: 371: 369: 366: 364: 363:Lwandle Plate 361:Microplates: 360: 358: 354: 352: 351:African Plate 348: 347: 345: 343: 339: 330: 325: 323: 318: 316: 311: 310: 307: 296: 292: 288: 284: 280: 276: 272: 268: 264: 257: 249: 245: 241: 237: 233: 229: 225: 221: 217: 210: 208: 194: 188: 184: 180: 176: 172: 165: 163: 146: 142: 135: 127: 123: 119: 115: 111: 107: 103: 96: 92: 81: 78: 75: 72: 69: 68: 67: 64: 55: 53: 48: 46: 42: 38: 35:(WCARS) is a 34: 26: 21: 1113:expanding it 1106: 1060:expanding it 1049: 1034: 977:(aka koppie) 762:Owambo Basin 747:Ogaden Basin 737:Murzuq Basin 707:Douala Basin 682:Angola Basin 658: 654:Urema Valley 639:Red Sea Rift 634:Muglad Basin 604:Benue Trough 410:Congo Craton 373:Rovuma Plate 357:Somali Plate 270: 266: 256: 223: 219: 196:, retrieved 174: 149:. Retrieved 144: 134: 109: 105: 95: 65: 61: 49: 32: 30: 27:labeled CASZ 860:Drakensberg 777:Sirte Basin 732:Kufra Basin 722:Gabon Basin 717:Karoo Basin 702:Congo Basin 649:Atbara rift 629:Melut Basin 594:Anza trough 455:Shear zones 226:: 118–127. 37:rift system 1152:Categories 999:Mount Mabu 984:Anti-Atlas 975:Inselbergs 697:Chad Basin 198:2023-10-24 151:31 January 87:References 41:Cretaceous 1019:Zuma Rock 1014:Wase Rock 295:0040-1951 248:0040-1951 58:Formation 712:El Djouf 513:Orogens 397:shields 393:Cratons 275:Bibcode 228:Bibcode 114:Bibcode 687:Aoukar 342:Plates 293:  246:  189:  147:. AAPG 1050:This 581:Rifts 1109:stub 1056:stub 395:and 291:ISSN 244:ISSN 187:ISBN 153:2016 31:The 283:doi 271:213 236:doi 224:594 179:doi 122:doi 110:209 1154:: 289:. 281:. 265:. 242:. 234:. 222:. 218:. 206:^ 185:, 173:, 161:^ 143:. 120:. 108:. 104:. 54:. 1140:e 1133:t 1126:v 1115:. 1087:e 1080:t 1073:v 1062:. 328:e 321:t 314:v 297:. 285:: 277:: 250:. 238:: 230:: 181:: 155:. 128:. 124:: 116::

Index


Central African Shear Zone
rift system
Cretaceous
Logone Birni Basin
East African Rift System
"Mesozoic and early Tertiary rift tectonics in East Africa"
Bibcode
1992Tectp.209..115B
doi
10.1016/0040-1951(92)90014-W
"The Logone Birni Basin (LLB) in Northern Cameroon: Transition Between the West African Rift Sub-System (WAS) and the Central African Rift Sub-System (CAS); Tectonic and Geophysical Models"


"Chapter 13: West and Central African Rift System"
doi
10.1016/s0419-0254(06)80005-4
ISBN
978-0-444-89566-0


"The role that plate tectonics, inferred stress changes and stratigraphic unconformities have on the evolution of the West and Central African Rift System and the Atlantic continental margins"
Bibcode
2013Tectp.594..118F
doi
10.1016/j.tecto.2013.03.021
ISSN
0040-1951
"Regional framework, structural and petroleum aspects of rift basins in Niger, Chad and the Central African Republic (C.A.R.)"
Bibcode

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