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Mackenzie Large Igneous Province

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subhorizontal away from the plume. However, if subhorizontal flow is a result of dike ascent to a level of impartial lightness in the Earth's crust, it would not be related to the size of the Mackenzie plume. Instead, the analysis of dike swarm geometry could possibly maintain evidence for the smallest diameter of the Mackenzie plume. The outer limit separating the zone of fanning dike geometry and subparallel dikes might be suggestive of the smallest diameter for the Mackenzie plume because it is not probable that the stress related to a magmatic zone has consequence over a region that is lesser than the Mackenzie plume, which created the feature. From this analysis, the smallest diameter of the Mackenzie plume would have been about 2,000 km (1,200 mi).
43: 267: 288:. This tectonic setting suggestion can be comparable with the early volcano-tectonic evolution of the Yellowstone hotspot, which developed two arms instead of three, followed by failure of both arms. At the Mackenzie hotspot, rifting is considered to have been passive and to have taken place in the crust above the hotspot that should have been weakened by the Mackenzie plume. Crustal uplift may have also provided stresses contributing to rifting. 1441: 253:. Both hotspots produced massive qualities of basaltic lava flows that were identical with the formation of dike swarms during a short period of time at the beginning of mantle plume volcanism. It is estimated that the majority of volcanism that formed the Mackenzie Large Igneous Province took place for no more than two million years, and subsequent volcanism is unknown. However, the younger and smaller 335:, which are widespread throughout the large igneous province. With an area of 2,700,000 km (1,000,000 sq mi), the Mackenzie event is the largest magmatic event ever to occur on the Canadian landscape. At least two magmatic formations can be considered large igneous provinces in their own advantage, both of which cover an area of more than 150,000 km (58,000 sq mi). 395:. The Mackenzie dike swarm was emplaced into older metamorphic and igneous rocks of the Canadian Shield about 1,200 million years ago. Individual dikes of the Mackenzie swarm are respectively 1,500 km (930 mi) to 2,000 km (1,200 mi) long and 30 m (98 ft) thick. This indicates that the Mackenzie dikes are larger than those associated with the 412: 500:. This makes the Coppermine River flood basalts one of the largest flood basalt events ever to appear on the North American continent, as well as on Earth. The maximum thickness of the Coppermine River flood basalts is 4.7 km (2.9 mi) and consist of 150 lava flows, each 4 m (13 ft) to 100 m (330 ft) thick. 374:
flood basalts in the north above the roof of the magma chamber, down through the igneous layering of the Muskox intrusion and into the keel region of the intrusion and its intersection with the olivine gabbro feeder dike that forms the southernmost sector. The margin zone characterizes the western and eastern outer limits of the intrusion.
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The Coppermine River flood basalts were extruded shortly after a period of crustal uplift that later resulted in a short period of collapse in the associated landscape. This sudden uplift was likely caused by rising magma of the Mackenzie plume, which later resulted in the appearance of the Mackenzie
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with an area of 170,000 km (66,000 sq mi), representing a volume of lavas of at least 500,000 km (120,000 cu mi). This extensive area of flood basalt lava flows has been termed the Coppermine River flood basalts hence given the location of the flood basalt sequence. With
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Widespread throughout the Mackenzie Large Igneous Province is the 2,700,000 km (1,000,000 sq mi) Mackenzie dike swarm. This extensive group of radially oriented dikes is more than 500 km (310 mi) wide and 3,000 km (1,900 mi) long, extending from Northwestern Ontario
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exist on Earth. Because the Muskox intrusion has strong similarities to the Noril'sk-Talnakh area in Siberia, a number of mineral explorations have taken place. The first mineral exploration of the Muskox intrusion occurred during the 1950s when surface prospecting began by the International Nickel
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in the Northwest Territories and Nunavut. This was the last major event to affect the core of the Slave craton, although later on some younger mafic magmatism registered along its boundaries. This includes the magmatic events that formed the 723 million year old Franklin Large Igneous Province
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Between 1,200 and 740 million years ago, a series of flood basalt eruptions took place. At the northern portion of the Mackenzie Large Igneous Province, vast volumes of basaltic lava paved over a large area of the northwestern Canadian Shield. This extensive volcanism constructed a large
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the overlying margin zone and layered series covers the feeder dike section. The layering series dips gently north as do the overlying Coppermine flood basalts. Weathering of the Muskox dipping sequence has exposed a cross-section through the entire dipping sequence, starting with the Coppermine
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The Muskox intrusion can be separated into three sections, including an olivine gabbro feeder dike to the intrusion, another contact margin zone, and an upper layered series. Because of different levels of erosion and outcroppings of the Muskox intrusion at higher structural levels, north of the
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Tectonic and magmatic features associated with the Mackenzie Large Igneous Province. Red star shows the initial Mackenzie plume zone relative to the lithosphere; partial black circle is the estimate of the zone of plume influence on stress-field orientation; dark lines are dikes of the Mackenzie
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Even though the Mackenzie Large Igneous Province is classified as a large igneous province like other extremely large accumulations of igneous rocks on Earth, it is much larger than large igneous province standards. The standard size classification for large igneous provinces is a minimum areal
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in the United States, which are respectively 400 km (250 mi) to 500 km (310 mi) long and 10 km (6.2 mi) to 30 km (19 mi) thick. The size differentiation of the Columbia River and Mackenzie dikes suggests that the crude estimates for both dike length and
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The size of the Mackenzie hotspot is considered to have been about 1,000 km (620 miles) in diameter. This calculation is based on the analysis of magmatic fabric in the Mackenzie dike swarm, which shows that magma flow was only vertical close to the middle of the Mackenzie plume and only
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are interpreted to represent the western extension of the Mackenzie dike swarm. They display geologic similarities with the Mackenzie dike swarm and the Coppermine River flood basalts, and are therefore regarded as products of the Mackenzie plume. The dikes intrude through Early Proterozoic
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hotspot. The early Muskox intrusion is considered to have originally been a sill-shaped magma reservoir for the overlying Coppermine River flood basalts during their formation. With the Coppermine River basalts comprising more than 100 individual lava flows, the potential volumes of
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Exposed portions of the feeder dike south of the Coppermine River comprise bodies of large semi-massive and disseminated copper-nickel sulfides rich in platinum group metals. At the margins of the Muskox intrusion, sulfide bearing zones more than 10 km (6.2 mi) long contain
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just to the northeast is considered to have been formed by a similar mantle plume between 727 and 721 million years ago. The short time span of two million years for magma emplacement in the Mackenzie Large Igneous Province is also present for the Yellowstone hotspot.
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million years. This indicates that the Mackenzie hotspot essentially emplaced the Mackenzie Large Igneous Province as a whole throughout the associated landscape. The associated Mackenzie plume is consistent with mantle plumes that have deep origins within the Earth's mantle.
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on Earth, as well as one of the most valuable from an economic perspective. The intrusion represents the oldest igneous formation of the Mackenzie magmatic event, having formed between 1,905 and 1,155 million years ago. It maintains a triangular trough-shaped
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of the Wernecke Supergroup, some of which exist as separate intrusions while others occur in swarms of up to eight dikes. Individual dikes range from 5 m (16 ft) to 15 m (49 ft) thick and up to 5 km (3.1 mi) long. Medium to fine grained
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that extends 1.8 km (1.1 mi) below the surface. With a width of 20 km (12 mi) and a length of over 470 km (290 mi), the Muskox intrusion is overlain by a sequence of Coppermine flood basalts that remains 3 km (1.9 mi) thick.
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At the beginning of the Mackenzie magmatic event, the Mackenzie hotspot collided with lithosphere that was already in an extensional regime that allowed rifting to occur. Passive rifting has been interpreted as the mechanism that produced the opening of the former
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elements and copper mineralization exists in the basal margin of the Muskox intrusion. Research operated by Muskox Minerals Corp. proclaims that this extensive layered intrusion has the possibility to evolve into a massive expected source of copper,
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portion of the Midcontinent Rift System is bounded on the south by pre-existing continental faults that had substantial right-lateral movement before the formation of the Midcontinent Rift System. This period of rifting was a large event for
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extent of 100,000 km (39,000 sq mi). However, the Mackenzie dike swarm itself occupies an area of at least 2,700,000 km (1,000,000 sq mi), making the Mackenzie Large Igneous Province larger than the
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Schwab, Danette L.; Thorkelson, Derek J.; Mortensen, James K.; Creaser, Robert A.; Abbott, J. Grant (2004-08-20). "The Bear River dykes (1265-1269 Ma): westward continuation of the Mackenzie dyke swarm into Yukon, Canada".
576:. In the 1980s, many small companies with little financing and fragmented claim blocks attended sampling and a number of drilling operations on outcroppings of the Muskox intrusion that contained platinum group elements. 157:. It is one of the several large igneous provinces scattered throughout the Canadian landscape, which can be thousands of kilometres in volume and area. The Mackenzie Large Igneous Province is one of the world's largest 415:
Map of the 1,267 million year old northwest trending Mackenzie dike swarm (black lines). Dots indicate areas where flow direction was determined. Red arcuate line indicates boundary between vertical flow and horizontal
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an area of 170,000 km (66,000 sq mi) and a volume of 650,000 km (160,000 cu mi), the Coppermine River flood basalt sequence is larger than the Columbia River Basalt Group in the
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and platinum group metals. The expected mineralization potential for the Muskox intrusion is supported as a result of its strong similarities to the Noril'sk-Talnakh intrusions in Siberia where the richest
436:-fill sequence was deposited before the Mackenzie dikes were intruded into the associated basins. When the giant Mackenzie dike swarm intruded into the Canadian Shield, it partly uplifted and intruded the 319:
The massive extent of the Mackenzie Large Igneous Province contains a number of magmatic features that were formed during the extensive Mackenzie magmatic event. This includes
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and the 780 million year old Hottah gabbro sheets. Since the Mackenzie dike swarm intruded the Slave craton, the craton has been repeatedly submerged under seas.
233:. Evidence for the Mackenzie hotspot include the existence of the giant mafic Mackenzie dike swarm because of its fanning pattern adjacent to the Muskox intrusion. 47:
Map of the Mackenzie Large Igneous Province and its sub-features. Blue star marks the approximate focal point for the 1,270 million year old magmatic activity.
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in Saskatchewan, the Thelon Basin in Nunavut and the Baker Lake Basin in the Northwest Territories. The mafic dikes display evidence that the unmetamorphosed
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The Mackenzie dike swarm is the largest dike swarm known on Earth and is one of the several dike swarms found throughout the Canadian Shield. Mafic dikes cut
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were erupted on a smaller scale about 900 million years ago. These flood basalts reach a thickness of 360 m (1,180 ft). Just southeast of the
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that had a large mafic dike swarm on every rift arm. Two of the first arms formed the Poseidon Ocean basin and the third arm failed thus forming an
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that were formed during a massive igneous event starting about 1,270 million years ago. The large igneous province extends from the
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flood basalts remain 300 m (980 ft) to 500 m (1,600 ft) thick. They appear green in colour and contain the
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As a large igneous province, it is an extremely large area of related igneous rocks that were emplaced over an extremely short
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span. The igneous rocks comprising the Mackenzie Large Igneous Province originated from processes not associated with normal
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magma that moved through the Muskox conduit were in the order of 10,000 km (2,400 cu mi).
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Pilkington, Mark; Roest, Walter R. (1998). "Removing varying directional trends in aeromagnetic data".
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A slightly younger but possibly related geologic feature is the 2,000 km (1,200 mi) long
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of certain Mackenzie dikes from an array of distances from an assigned focal point give an age of
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and gabbro comprise the Bear River dikes and are occasionally altered by metamorphism to form
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Like most large igneous provinces, the Mackenzie Large Igneous Province has its origins in a
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veins, the Bear River dikes are interpreted to have formed during a single magmatic phase.
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The Mackenzie hotspot is interpreted to have been similar to the early volcanism of the
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lies the massive Muskox intrusion. It remains as one of the largest and most studied
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swarm; CRB indicates the Coppermine River basalts; M indicates the Muskox intrusion.
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on Earth. Igneous rocks of the Mackenzie Large Igneous Province are generally
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provinces, as well as one of the most well-preserved continental flood basalt
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adjacent to the southern end of the Mackenzie Large Igneous Province. The
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Geologic map of the Muskox intrusion and adjacent geologic groups
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Proterozoic East Gondwana: Supercontinent Assembly and Breakup
568: 221:. As the head of the Mackenzie plume encountered the Earth's 868:"Re-os isotopic study of the Muskox Intrusion, NWT, Canada" 470:
of unknown age and origin and being cross-cut by undated
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rocks of the Canadian Shield, including those in the
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that experienced considerable volcanism known as the
1150:. Rockgate Capital Corp. 2008-07-31. Archived from 77: 72: 60: 52: 21: 1070: 1110:Yoshida, M.; B. F. Windley; S. Dasgupta (2003). 769:Mantle plumes: their identification through time 448:, the 1,265 to 1,269 million year old 408:for the early stage of the Yellowstone hotspot. 307:, and the rifting event later deceased when the 138:sequence and the massive northwesterly trending 767:Ernst, Richard E.; Buchan, Kenneth L. (2001). 98:of the southwestern, western and northwestern 1186: 81:2,700,000 km (1,000,000 sq mi) 8: 1193: 1179: 1171: 810:United States National Academy of Sciences 674:. Prize Mining Corporation. Archived from 549:also exist in the Ekalulia flood basalts. 18: 1045: 775:. pp. 143, 145, 146, 147, 148, 259. 572:Company of Canada, which is now known as 378:Construction of the Mackenzie dike swarm 802:United States National Research Council 628: 71: 59: 51: 39: 1018: 1016: 1014: 1012: 1010: 1008: 400:thickness ratio are within the ranges 1139: 1137: 1135: 804:. Geophysics Study Committee (1980). 762: 760: 758: 756: 754: 752: 750: 748: 746: 744: 742: 740: 738: 666: 664: 662: 660: 658: 656: 654: 652: 351:Adjacent to McGregor Lake in western 76: 7: 973: 971: 969: 967: 937: 935: 933: 796: 794: 792: 736: 734: 732: 730: 728: 726: 724: 722: 720: 718: 698: 696: 694: 692: 650: 648: 646: 644: 642: 640: 638: 636: 634: 632: 106:. It consists of a group of related 1145:"Notice of special general meeting" 1087:Energy, Mines and Resources Canada 14: 339:Placement of the Muskox intrusion 1466:Mackenzie Large Igneous Province 1439: 126:where it meets with the smaller 89:Mackenzie Large Igneous Province 41: 23:Mackenzie Large Igneous Province 16:Large igneous province in Canada 1056:10.1016/j.precamres.2004.04.004 947:United States Geological Survey 255:Franklin Large Igneous Province 978:Bleeker, Wouter (2008-06-13). 875:Egs - AGU - Eug Joint Assembly 613:Volcanology of Northern Canada 598:Timeline of volcanism on Earth 515:flood basalts on northwestern 511:Further to the northeast, the 492:and comparable in size to the 404:for the Mackenzie hotspot and 1: 1274:Ethiopian and Yemen Highlands 773:Geological Society of America 618:Volcanology of Western Canada 608:Volcanology of Eastern Canada 136:Coppermine River flood basalt 56:Northwest Territories, Canada 1069:Lambert, Maurice B. (1978). 949:. 2006-02-14. Archived from 844:. 2008-09-24. Archived from 988:Geological Survey of Canada 842:Geological Survey of Canada 397:Columbia River Basalt Group 1512: 984:Mineral Deposits of Canada 838:Mineral Deposits of Canada 172:in composition, including 1476:Mesoproterozoic volcanism 1435: 1208: 40: 31: 293:Midcontinent Rift System 132:Muskox layered intrusion 1202:Large igneous provinces 1218:Northeast Georgia Rise 1116:The Geological Society 980:"Regional Metallogeny" 709:University of Maryland 417: 348: 272: 96:large igneous province 34:Large igneous province 806:Continental Tectonics 603:Volcanology of Canada 414: 393:Northwest Territories 346: 269: 188:(in the southwestern 128:Matachewan dike swarm 1357:Mackenzie dike swarm 1026:Precambrian Research 866:Day, J.M.D. (2003). 311:collision occurred. 140:Mackenzie dike swarm 124:Northwestern Ontario 1402:Paraná and Etendeka 1289:Franklin dike swarm 1279:Equatorial Atlantic 1234:Brazilian Highlands 1038:2004PreR..133..175S 916:1998Geop...63..446P 883:2003EAEJA.....6848D 391:to Nunavut and the 251:Yellowstone hotspot 239:Uranium-lead dating 186:Ontong Java Plateau 1491:Historical geology 1446:Geology portal 529:Ekalulia Formation 418: 357:layered intrusions 349: 325:layered intrusions 273: 262:Extensional forces 155:seafloor spreading 91:(MLIP) is a major 78: • Total 1481:Hotspot volcanism 1453: 1452: 1125:978-1-86239-125-3 1096:978-0-88894-227-2 1032:(3–4): 175, 176. 924:10.1190/1.1444345 819:978-0-309-02928-5 782:978-0-8137-2352-5 672:"Muskox Property" 383:through northern 309:Grenville orogeny 231:Mackenzie hotspot 85: 84: 1503: 1496:Economic geology 1444: 1443: 1359: 1352: 1350:Coppermine River 1325: 1303: 1291: 1244:Central Atlantic 1224: 1195: 1188: 1181: 1172: 1166: 1165: 1163: 1162: 1156: 1149: 1141: 1130: 1129: 1107: 1101: 1100: 1083:British Columbia 1076: 1066: 1060: 1059: 1049: 1020: 1003: 1002: 1000: 999: 990:. Archived from 975: 962: 961: 959: 958: 939: 928: 927: 899: 893: 892: 890: 889: 872: 863: 857: 856: 854: 853: 830: 824: 823: 798: 787: 786: 764: 713: 712: 703:Day, James M.D. 700: 687: 686: 684: 683: 668: 513:Nauyat Formation 496:in west-central 450:Bear River dikes 407: 403: 371:Coppermine River 315:Magmatic history 244: 45: 19: 1511: 1510: 1506: 1505: 1504: 1502: 1501: 1500: 1471:Plate tectonics 1456: 1455: 1454: 1449: 1438: 1431: 1355: 1348: 1321: 1299: 1287: 1254:Circum-Superior 1249:Central Iapetus 1216: 1204: 1199: 1169: 1160: 1158: 1154: 1147: 1143: 1142: 1133: 1126: 1109: 1108: 1104: 1097: 1079:North Vancouver 1068: 1067: 1063: 1047:10.1.1.607.3240 1022: 1021: 1006: 997: 995: 977: 976: 965: 956: 954: 941: 940: 931: 901: 900: 896: 887: 885: 870: 865: 864: 860: 851: 849: 832: 831: 827: 820: 812:. p. 180. 800: 799: 790: 783: 766: 765: 716: 702: 701: 690: 681: 679: 670: 669: 630: 626: 594: 555: 525:Queen Maud Gulf 480: 430:Athabasca Basin 405: 401: 380: 341: 317: 282:triple junction 264: 242: 227:Victoria Island 211: 206: 151:plate tectonics 147:geological time 100:Canadian Shield 93:Mesoproterozoic 67:Mesoproterozoic 48: 36: 27: 24: 17: 12: 11: 5: 1509: 1507: 1499: 1498: 1493: 1488: 1486:Rift volcanism 1483: 1478: 1473: 1468: 1458: 1457: 1451: 1450: 1436: 1433: 1432: 1430: 1429: 1424: 1419: 1414: 1409: 1404: 1399: 1394: 1381: 1376: 1374:North Atlantic 1371: 1366: 1361: 1353: 1342: 1337: 1332: 1327: 1315: 1310: 1305: 1301:Sverdrup Basin 1293: 1281: 1276: 1271: 1266: 1261: 1259:Columbia River 1256: 1251: 1246: 1241: 1236: 1231: 1226: 1209: 1206: 1205: 1200: 1198: 1197: 1190: 1183: 1175: 1168: 1167: 1131: 1124: 1118:. p. 26. 1102: 1095: 1061: 1004: 963: 929: 910:(2): 446–453. 894: 858: 825: 818: 788: 781: 714: 688: 627: 625: 622: 621: 620: 615: 610: 605: 600: 593: 590: 559:platinum group 554: 553:Mineralization 551: 479: 476: 379: 376: 340: 337: 316: 313: 305:mineralization 278:Poseidon Ocean 263: 260: 210: 207: 205: 202: 83: 82: 79: 75: 74: 70: 69: 64: 58: 57: 54: 50: 49: 46: 38: 37: 32: 29: 28: 25: 22: 15: 13: 10: 9: 6: 4: 3: 2: 1508: 1497: 1494: 1492: 1489: 1487: 1484: 1482: 1479: 1477: 1474: 1472: 1469: 1467: 1464: 1463: 1461: 1448: 1447: 1442: 1434: 1428: 1425: 1423: 1420: 1418: 1415: 1413: 1410: 1408: 1405: 1403: 1400: 1398: 1395: 1393: 1389: 1385: 1382: 1380: 1377: 1375: 1372: 1370: 1367: 1365: 1362: 1358: 1354: 1351: 1346: 1343: 1341: 1338: 1336: 1333: 1331: 1328: 1324: 1319: 1316: 1314: 1311: 1309: 1306: 1302: 1297: 1294: 1290: 1285: 1282: 1280: 1277: 1275: 1272: 1270: 1267: 1265: 1262: 1260: 1257: 1255: 1252: 1250: 1247: 1245: 1242: 1240: 1237: 1235: 1232: 1230: 1227: 1223: 1219: 1214: 1211: 1210: 1207: 1203: 1196: 1191: 1189: 1184: 1182: 1177: 1176: 1173: 1157:on 2018-09-17 1153: 1146: 1140: 1138: 1136: 1132: 1127: 1121: 1117: 1113: 1106: 1103: 1098: 1092: 1088: 1084: 1080: 1075: 1074: 1065: 1062: 1057: 1053: 1048: 1043: 1039: 1035: 1031: 1027: 1019: 1017: 1015: 1013: 1011: 1009: 1005: 994:on 2010-04-20 993: 989: 985: 981: 974: 972: 970: 968: 964: 953:on 2007-09-14 952: 948: 944: 938: 936: 934: 930: 925: 921: 917: 913: 909: 905: 898: 895: 884: 880: 876: 869: 862: 859: 848:on 2011-06-04 847: 843: 839: 835: 829: 826: 821: 815: 811: 807: 803: 797: 795: 793: 789: 784: 778: 774: 770: 763: 761: 759: 757: 755: 753: 751: 749: 747: 745: 743: 741: 739: 737: 735: 733: 731: 729: 727: 725: 723: 721: 719: 715: 710: 706: 699: 697: 695: 693: 689: 678:on 2009-04-08 677: 673: 667: 665: 663: 661: 659: 657: 655: 653: 651: 649: 647: 645: 643: 641: 639: 637: 635: 633: 629: 623: 619: 616: 614: 611: 609: 606: 604: 601: 599: 596: 595: 591: 589: 587: 583: 577: 575: 570: 565: 560: 552: 550: 548: 544: 540: 537: 534: 530: 526: 522: 518: 517:Baffin Island 514: 509: 507: 501: 499: 495: 491: 490:United States 486: 478:Flood basalts 477: 475: 473: 469: 465: 461: 456: 451: 447: 442: 439: 435: 431: 427: 423: 413: 409: 398: 394: 390: 387:and northern 386: 377: 375: 372: 366: 363: 362:magma chamber 358: 354: 345: 338: 336: 334: 330: 326: 322: 321:flood basalts 314: 312: 310: 306: 303: 298: 297:Lake Superior 294: 289: 287: 283: 279: 268: 261: 259: 256: 252: 247: 240: 234: 232: 228: 224: 220: 216: 208: 203: 201: 199: 195: 191: 190:Pacific Ocean 187: 181: 179: 175: 171: 167: 163: 160: 156: 152: 148: 143: 141: 137: 133: 129: 125: 121: 117: 113: 109: 108:igneous rocks 105: 101: 97: 94: 90: 80: 68: 65: 63: 55: 44: 35: 30: 20: 1437: 1344: 1323:Broken Ridge 1313:Karoo-Ferrar 1159:. 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Retrieved 676:the original 584:, platinum, 578: 556: 547:pillow lavas 510: 502: 494:Deccan Traps 485:lava plateau 481: 453:sedimentary 444:In northern 443: 438:Slave craton 419: 389:Saskatchewan 381: 367: 350: 318: 290: 274: 248: 235: 215:mantle plume 212: 182: 144: 118:to near the 88: 86: 1384:Ontong Java 1296:High Arctic 464:greenschist 426:Proterozoic 223:lithosphere 159:Proterozoic 120:Great Lakes 1460:Categories 1369:Mistassini 1364:Matachewan 1340:Long Range 1335:Keweenawan 1161:2010-02-23 998:2010-02-23 957:2010-02-23 904:Geophysics 888:2010-02-23 852:2010-02-23 682:2010-01-30 624:References 406:1.3-5 x 10 402:5-6.7 x 10 194:U.S. state 192:) and the 1417:Skagerrak 1392:Hikurangi 1345:Mackenzie 1318:Kerguelen 1239:Caribbean 1222:Maud Rise 1073:Volcanoes 1042:CiteSeerX 582:palladium 574:Vale Inco 569:orebodies 533:magnesium 472:hematitic 468:foliation 286:aulacogen 1427:Winagami 1412:Siberian 1388:Manihiki 1330:Marathon 1284:Franklin 1269:Emeishan 877:: 6848. 592:See also 545:. Minor 541:mineral 539:silicate 506:silicate 385:Manitoba 243:1267 ± 2 166:terrains 162:magmatic 53:Location 1407:Shatsky 1379:Ongeluk 1308:Iceland 1213:Agulhas 1034:Bibcode 912:Bibcode 879:Bibcode 543:olivine 521:Nunavut 460:diorite 422:Archean 353:Nunavut 209:Origins 204:Geology 116:Nunavut 1422:Ungava 1397:Panjal 1264:Deccan 1229:Azores 1122:  1093:  1044:  816:  779:  564:nickel 557:Heavy 527:, the 455:strata 302:copper 219:mantle 198:Alaska 178:gabbro 174:basalt 134:, the 112:Arctic 104:Canada 1155:(PDF) 1148:(PDF) 871:(PDF) 498:India 446:Yukon 434:basin 416:flow. 333:dikes 329:sills 170:mafic 1120:ISBN 1091:ISBN 814:ISBN 777:ISBN 586:gold 536:iron 424:and 331:and 176:and 153:and 87:The 73:Area 26:MLIP 1052:doi 1030:133 920:doi 519:of 196:of 122:in 114:in 102:in 62:Age 1462:: 1220:, 1134:^ 1114:. 1089:. 1085:: 1081:, 1077:. 1050:. 1040:. 1028:. 1007:^ 986:. 982:. 966:^ 945:. 932:^ 918:. 908:63 906:. 873:. 840:. 836:. 808:. 791:^ 771:. 717:^ 707:. 691:^ 631:^ 327:, 323:, 200:. 180:. 142:. 1390:- 1386:- 1360:) 1347:( 1326:) 1320:( 1304:) 1298:( 1292:) 1286:( 1225:) 1215:( 1194:e 1187:t 1180:v 1164:. 1128:. 1099:. 1058:. 1054:: 1036:: 1001:. 960:. 926:. 922:: 914:: 891:. 881:: 855:. 822:. 785:. 711:. 685:.

Index

Large igneous province
Map of the Mackenzie Large Igneous Province and its sub-features. Blue star marks the approximate focal point for the 1,270 million year old magmatic activity.
Age
Mesoproterozoic
Mesoproterozoic
large igneous province
Canadian Shield
Canada
igneous rocks
Arctic
Nunavut
Great Lakes
Northwestern Ontario
Matachewan dike swarm
Muskox layered intrusion
Coppermine River flood basalt
Mackenzie dike swarm
geological time
plate tectonics
seafloor spreading
Proterozoic
magmatic
terrains
mafic
basalt
gabbro
Ontong Java Plateau
Pacific Ocean
U.S. state
Alaska

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