240:. The more recent seamounts are thought to mark discrete episodes of volcanic activity along different lines or segments of the same structural trend rather than movement of the plate over a fixed mantle plume. The timing of volcanic activity which coincides with major reorganisations of plate boundaries, as well as geochemical analysis of the Monteregian
31:
39:
188:
between 103 and 83 Ma. After the formation of the
Nashville Seamount around 83 Ma, there was a pause in volcanic activity and the volcanic center shifted north, creating the Corner Rise Seamounts around 80-76 Ma. The Mid-Atlantic Ridge passed over the plume around 76 Ma and renewed volcanic activity
196:
under the Great Meteor
Seamount (though these do not extend into the upper mantle as expected for a plume), and helium isotope ratios in groundwater in the Monteregian Hills which indicate a deep mantle source. The lack of an obvious hotspot track west of Montreal has previously been ascribed to
155:
The geologic history of the New
England hotspot is the subject of much debate among geoscientists. The conventional opinion is that volcanic activity associated with the hotspot results from movement of the
232:
is more plausible. In this view, the two spikes in activity that formed the New
England-Quebec volcanic province and New England Seamounts are due to passive, shallow melting associated with
642:
236:
extension resulting from tectonic changes in the
Atlantic Ocean which reactivated pre-existing zones of structural weakness related to the earlier opening of the
201:, a lack of recognizable intrusions due to erosion, or strengthening of the plume when it approached the Monteregian Hills, but more recent research has found
713:"State of intraplate stress and tectonism of northeastern America since Cretaceous times, with particular emphasis on the New England-Quebec igneous province"
228:
and age progression along the New
England-Quebec volcanic province, is not what is expected for a plume origin, and the case has been made that a shallow,
1217:
1182:
796:"Geochemical and isotopic (NdâSrâHfâPb) evidence for a lithospheric mantle source in the formation of the alkaline Monteregian Province (Quebec)"
497:
1207:
1202:
1212:
851:
391:
177:
97:
513:
MĂ©jean, P.; Pinti, D.L.; Kagoshima, T.; Roulleau, E.; Demerets, L.; Poirier, A.; Takahata, N.; Sano, Y.; Larocque, M. (2020).
1192:
1187:
1197:
253:
258:
1028:
601:"Timing of eastern North American kimberlite magmatism: continental extension of the Great Meteor hotspot track?"
757:"The Cretaceous Peri-Atlantic Alkaline Pulse (PAAP): Deep mantle plume origin or shallow lithospheric break-up?"
1163:
1000:
229:
332:"Evidence for age and evolution of Corner Seamounts and Great Meteor Seamount Chain from multibeam bathymetry"
985:
844:
600:
411:
331:
977:
185:
128:
109:
105:
38:
756:
668:
643:"Constraints on the mantle plume model for Mesozoic alkaline intrusions in northeastern North America"
514:
450:
412:"Age progressive volcanism in the New England Seamounts and the opening of the central Atlantic Ocean"
289:
1134:
1038:
1023:
924:
807:
768:
724:
680:
612:
573:
526:
462:
423:
343:
301:
157:
136:
78:
1056:
515:"Mantle helium in Southern Quebec groundwater: A possible fossil record of the New England hotspot"
263:
221:
dated between 214-192 Ma which may represent an older, continental extension of the hotspot track.
1094:
929:
542:
120:
116:
914:
192:
Evidence for a plume origin includes the above age progression, seismic anomalies in the lower
1114:
1104:
1099:
995:
967:
886:
860:
837:
493:
387:
193:
169:
82:
74:
1147:
1109:
990:
815:
776:
732:
688:
620:
616:
581:
534:
530:
470:
431:
359:
351:
309:
210:
795:
93:
1142:
1124:
1051:
962:
934:
876:
868:
198:
184:
around 124-100 Ma. As the plate moved further west, the plume moved offshore, forming the
17:
811:
772:
728:
712:
684:
577:
466:
427:
347:
305:
1089:
1046:
1018:
952:
944:
904:
881:
165:
692:
624:
1176:
1119:
1079:
1074:
1066:
957:
919:
896:
736:
562:"The eight classical Monteregian hills at depth and the mechanism of their intrusion"
546:
237:
181:
140:
132:
124:
101:
51:
561:
1159:
1084:
214:
161:
669:"Non-plume magmatism and rifting during the opening of the central Atlantic Ocean"
42:
A portion of the track of the New
England hotspot. The westernmost white dot is
1010:
780:
233:
538:
218:
202:
164:. During the first major episodes of volcanic activity, the plume created the
144:
43:
474:
435:
355:
313:
85:
819:
244:
which indicates a lithospheric mantle source, support this interpretation.
189:
produced the
Seewarte Seamounts on the African Plate between 26 and 10 Ma.
112:
89:
47:
206:
71:
364:
241:
225:
173:
585:
30:
127:, the latter of which include its most recent eruptive center, the
29:
833:
147:
period to the present using the fixed hotspot reference frame.
451:"Seismic images under 60 hotspots: Search for mantle plumes"
829:
50:. The white dot just off the continental shelf is the
290:"Monteregian hotspot track: A longâlived mantle plume"
1133:
1065:
1037:
1009:
976:
943:
895:
867:
224:Some evidence, such the lack of an initial flood
34:The New England hotspot is marked 28 on this map.
325:
323:
131:. The New England, Great Meteor, or Monteregian
750:
748:
746:
662:
660:
636:
634:
384:Mantle plumes and their record in Earth history
711:Faure, S.; Tremblay, A.; Angelier, J. (1996).
706:
704:
702:
405:
403:
377:
375:
135:has been used to estimate the movement of the
845:
283:
281:
279:
8:
416:Journal of Geophysical Research: Solid Earth
27:Volcanic hotspot in the North Atlantic Ocean
852:
838:
830:
386:. Cambridge: Cambridge University Press.
363:
176:and the younger set of intrusions of the
115:off the coast of North America, and the
37:
599:Heaman, L.M.; Kjarsgaard, B.A. (2000).
275:
560:Feininger, T.; Goodacre, A.K. (1995).
197:failure of the plume to penetrate the
7:
794:Roulleau, E.; Stevenson, R. (2013).
330:Tucholke, B.E.; Smoot, N.C. (1990).
213:dated between 180 and 134 Ma and at
605:Earth and Planetary Science Letters
519:Earth and Planetary Science Letters
800:Canadian Journal of Earth Sciences
566:Canadian Journal of Earth Sciences
25:
1218:Natural history of New Hampshire
755:Matton, G.; JĂ©brak, M. (2009).
336:Journal of Geophysical Research
294:Journal of Geophysical Research
1183:Hotspots of the Atlantic Ocean
1:
693:10.1016/S0040-1951(99)00260-7
625:10.1016/S0012-821X(00)00079-0
490:Multiscale Seismic Tomography
737:10.1016/0040-1951(95)00113-1
254:Volcanism of Northern Canada
781:10.1016/j.tecto.2009.01.001
259:Volcanism of Eastern Canada
1234:
1208:Natural history of Ontario
1203:Natural history of Nunavut
539:10.1016/j.epsl.2020.116352
62:, also referred to as the
18:Great Meteor hotspot track
1213:Natural history of Quebec
1156:
647:The Canadian Mineralogist
475:10.1016/j.gr.2007.03.001
617:2000E&PSL.178..253H
531:2020E&PSL.54516352M
436:10.1029/JB089iB12p09980
356:10.1029/JB095iB11p17555
314:10.1029/JB095iB13p21983
820:10.1139/cjes-2012-0145
55:
35:
1158:Proposed mechanisms:
978:Indo-Australian Plate
667:McHone, J.G. (2000).
641:McHone, J.G. (1996).
410:Duncan, R.A. (1984).
382:Condie, K.C. (2001).
186:New England Seamounts
129:Great Meteor Seamount
41:
33:
1193:Volcanism of Ontario
1188:Volcanism of Nunavut
1135:South American Plate
1039:North American Plate
342:(B11): 17555â17569.
300:(B13): 21983â21990.
288:Sleep, N.H. (1990).
217:to the northwest of
158:North American Plate
137:North American Plate
79:North Atlantic Ocean
64:Great Meteor hotspot
1198:Volcanism of Quebec
812:2013CaJES..50..650R
773:2009Tectp.469....1M
729:1996Tectp.255..111F
685:2000Tectp.316..287M
578:1995CaJES..32.1350F
492:. Tokyo: Springer.
467:2007GondR..12..335Z
428:1984JGR....89.9980D
348:1990JGR....9517555T
306:1990JGR....9521983S
264:Volcanism of Canada
68:Monteregian hotspot
60:New England hotspot
525:(116352): 116352.
422:(B12): 9980â9990.
230:tectonic mechanism
166:igneous intrusions
121:Mid-Atlantic Ridge
117:Seewarte Seamounts
66:and sometimes the
56:
36:
1170:
1169:
499:978-4-431-55359-5
488:Zhao, D. (2015).
455:Gondwana Research
170:Monteregian Hills
83:Monteregian Hills
81:. It created the
16:(Redirected from
1225:
854:
847:
840:
831:
824:
823:
791:
785:
784:
752:
741:
740:
723:(1â2): 111â134.
708:
697:
696:
679:(3â4): 287â296.
664:
655:
654:
638:
629:
628:
611:(3â4): 253â268.
596:
590:
589:
557:
551:
550:
510:
504:
503:
485:
479:
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449:Zhao, D (2007).
446:
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379:
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151:Geologic history
21:
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1173:
1172:
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1129:
1061:
1033:
1005:
972:
939:
891:
869:Antarctic Plate
863:
858:
828:
827:
793:
792:
788:
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710:
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586:10.1139/e95-109
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381:
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329:
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250:
199:Canadian Shield
178:White Mountains
153:
143:from the early
98:White Mountains
28:
23:
22:
15:
12:
11:
5:
1231:
1229:
1221:
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1215:
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1174:
1168:
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1157:
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1150:
1145:
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1054:
1049:
1043:
1041:
1035:
1034:
1032:
1031:
1029:Juan FernĂĄndez
1026:
1021:
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1007:
1006:
1004:
1003:
998:
993:
988:
986:East Australia
982:
980:
974:
973:
971:
970:
965:
960:
955:
949:
947:
945:Eurasian Plate
941:
940:
938:
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932:
927:
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917:
912:
907:
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899:
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879:
873:
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865:
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857:
856:
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842:
834:
826:
825:
806:(6): 650â666.
786:
761:Tectonophysics
742:
717:Tectonophysics
698:
673:Tectonophysics
656:
630:
591:
552:
505:
498:
480:
461:(4): 335â355.
441:
399:
392:
371:
319:
274:
273:
271:
268:
267:
266:
261:
256:
249:
246:
152:
149:
139:away from the
100:intrusions in
26:
24:
14:
13:
10:
9:
6:
4:
3:
2:
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1219:
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1165:
1161:
1155:
1149:
1146:
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1141:
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1136:
1132:
1126:
1123:
1121:
1118:
1116:
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1111:
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1106:
1103:
1101:
1098:
1096:
1093:
1091:
1088:
1086:
1083:
1081:
1078:
1076:
1073:
1072:
1070:
1068:
1067:Pacific Plate
1064:
1058:
1055:
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1048:
1045:
1044:
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1036:
1030:
1027:
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1017:
1016:
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997:
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992:
989:
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984:
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948:
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936:
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931:
928:
926:
923:
921:
918:
916:
913:
911:
908:
906:
903:
902:
900:
898:
897:African Plate
894:
888:
885:
883:
880:
878:
875:
874:
872:
870:
866:
862:
855:
850:
848:
843:
841:
836:
835:
832:
821:
817:
813:
809:
805:
801:
797:
790:
787:
782:
778:
774:
770:
767:(1â4): 1â12.
766:
762:
758:
751:
749:
747:
743:
738:
734:
730:
726:
722:
718:
714:
707:
705:
703:
699:
694:
690:
686:
682:
678:
674:
670:
663:
661:
657:
653:(2): 325â334.
652:
648:
644:
637:
635:
631:
626:
622:
618:
614:
610:
606:
602:
595:
592:
587:
583:
579:
575:
572:(9): 95â109.
571:
567:
563:
556:
553:
548:
544:
540:
536:
532:
528:
524:
520:
516:
509:
506:
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481:
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393:0-521-80604-6
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280:
276:
269:
265:
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260:
257:
255:
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251:
247:
245:
243:
239:
238:Iapetus Ocean
235:
231:
227:
222:
220:
216:
212:
208:
204:
200:
195:
190:
187:
183:
182:New Hampshire
179:
175:
171:
167:
163:
160:over a fixed
159:
150:
148:
146:
142:
141:African Plate
138:
134:
133:hotspot track
130:
126:
125:African Plate
122:
118:
114:
111:
107:
103:
102:New Hampshire
99:
95:
91:
87:
84:
80:
76:
73:
69:
65:
61:
53:
52:Bear seamount
49:
45:
40:
32:
19:
1164:Plate theory
1160:Mantle plume
925:Sierra Leone
909:
803:
799:
789:
764:
760:
720:
716:
676:
672:
650:
646:
608:
604:
594:
569:
565:
555:
522:
518:
508:
489:
483:
458:
454:
444:
419:
415:
383:
339:
335:
297:
293:
234:lithospheric
223:
215:Rankin Inlet
191:
172:in southern
162:mantle plume
154:
119:east of the
67:
63:
59:
57:
1057:Yellowstone
1011:Nazca Plate
910:New England
110:Corner Rise
106:New England
1177:Categories
1095:Louisville
930:St. Helena
270:References
219:Hudson Bay
205:fields in
203:kimberlite
145:Cretaceous
94:Montérégie
86:intrusions
44:Mont Royal
1115:Rarotonga
1105:Marquesas
1100:Macdonald
1024:GalĂĄpagos
1001:Lord Howe
996:Tasmantid
968:Jan Mayen
887:Kerguelen
547:225328667
365:1912/5785
113:seamounts
1148:Trindade
1110:Pitcairn
991:Crosgove
861:Hotspots
248:See also
211:New York
90:Montreal
72:volcanic
48:Montreal
1143:Noronha
1125:Society
1052:Bermuda
963:Iceland
935:Tristan
915:RĂ©union
877:Balleny
808:Bibcode
769:Bibcode
725:Bibcode
681:Bibcode
613:Bibcode
574:Bibcode
527:Bibcode
463:Bibcode
424:Bibcode
344:Bibcode
302:Bibcode
242:plutons
207:Ontario
168:of the
123:on the
77:in the
75:hotspot
70:, is a
1090:Hawaii
1047:Anahim
1019:Easter
953:Azores
905:Canary
882:Erebus
545:
496:
390:
226:basalt
194:mantle
174:Quebec
104:, the
96:, the
1120:Samoa
1080:Bowie
1075:Arago
958:Eifel
920:Shona
543:S2CID
1085:Cobb
494:ISBN
388:ISBN
209:and
108:and
92:and
58:The
816:doi
777:doi
765:469
733:doi
721:255
689:doi
677:316
621:doi
609:178
582:doi
535:doi
523:545
471:doi
432:doi
360:hdl
352:doi
310:doi
180:in
88:in
46:in
1179::
1162:·
814:.
804:50
802:.
798:.
775:.
763:.
759:.
745:^
731:.
719:.
715:.
701:^
687:.
675:.
671:.
659:^
651:34
649:.
645:.
633:^
619:.
607:.
603:.
580:.
570:32
568:.
564:.
541:.
533:.
521:.
517:.
469:.
459:12
457:.
453:.
430:.
420:89
418:.
414:.
402:^
374:^
358:.
350:.
340:95
338:.
334:.
322:^
308:.
298:95
296:.
292:.
278:^
853:e
846:t
839:v
822:.
818::
810::
783:.
779::
771::
739:.
735::
727::
695:.
691::
683::
627:.
623::
615::
588:.
584::
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549:.
537::
529::
502:.
477:.
473::
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396:.
368:.
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346::
316:.
312::
304::
54:.
20:)
Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.
