20:
204:
A second model proposes that the
Chortis Block originated in the eastern Pacific Ocean 700–800 km (430–500 mi) south of the Cayman-Motagua-Polochic fault. From this remote location it has moved 1,100 km (680 mi) while rotating 40° clockwise. This rotation is, however, not
106:. Miocene-Holocene-aged rifts in the northern and western Chortis Block is the result of slow internal deformation. The southern and eastern extent is roughly the Nicaragua-
537:
Ortega-GutiĂ©rrez, F.; Solari, L. A.; Ortega-ObregĂłn, C.; ElĂas-Herrera, M.; Martens, U.; Morán-Icál, S.; ChiquĂn, M.; Keppie, J. D.; Torres de LeĂłn, R.; Schaaf, P. (2007).
201:
fault system from its Middle Eocene location off the southwestern coast of Mexico. This model is supported by matching lineations in the
Chortis Block and Mexico.
166:. These blocks either escaped the Laurussia-Gondwana collision and were broken off Gondwana later, or were accreted to Laurentia during the collision.
462:
151:
56:
174:
Located in a largely unpopulated, mountainous region, the geology of which is poorly known, the
Chortis Block is the only Precambrian-Palaeozoic
538:
435:"Reassessment of the Paleogene position of the Chortis block relative to southern Mexico: hierarchical ranking of data and features"
220:
separated in the Late
Jurassic. This model is based on matching lineaments in the Chortis Block and the areas surrounding it.
130:
During the Late
Neoproterozoic-Early Palaeozoic the Chortis Block was probably located on the northern shores of what is now
661:
309:, Convergence: Early and Middle Paleozoic, pp. 451, 453; Assembly of Western Pangaea: Carboniferous–Permian, pp. 453–454
463:"Arguments for and against the Pacific origin of the Caribbean Plate: discussion, finding for an inter-American origin"
491:"Neoproterozoic—Early Paleozoic evolution of peri-Gondwanan terranes: implications for Laurentia-Gondwana connections"
656:
609:
230:
378:
Proceedings of the XVth
International Congress on Carboniferous and Permian Stratigraphy. Utrecht (Vol. 10, p. 16)
666:
178:
on the
Caribbean Plate and even its origin within North America has remained enigmatic and disputed for decades.
376:
Blakey, R. C. (2003). "Carboniferous–Permian paleogeography of the assembly of
Pangaea". In Wong, Th. E. (ed.).
686:
671:
676:
103:
387:"Tectonic implications of alternative Cenozoic reconstructions for southern Mexico and the Chortis Block"
590:"Tectonic terranes of the Chortis block based on integration of regional aeromagnetic and geologic data"
681:
638:
212:
model suggests that the
Chortis Block has been located more or less just south of Mexico since
594:
Geologic and
Tectonic Development of the Caribbean Plate Boundary in Northern Central America
198:
99:
79:
553:
502:
398:
217:
213:
83:
32:
235:
8:
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506:
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414:
605:
589:
573:
522:
490:
418:
386:
175:
597:
561:
510:
406:
189:
1,100 km (680 mi) eastward and rotated counterclockwise 30-40° along the
155:
135:
536:
272:
87:
63:
36:
565:
117:, the names and extents of which varies considerably between different authors.
410:
95:
601:
514:
433:
Morán-Zenteno, D. J.; Keppie, J. D.; Martiny, B.; González-Torres, E. (2009).
138:, with an ocean separating it and the other blocks from core North America or
650:
194:
190:
75:
60:
185:
According to the first, most widely accepted model, the Chortis Block moved
380:. Utrecht, the Netherlands: Royal Netherlands Academy of Arts and Sciences.
432:
347:
333:, Previous Tectonic Models for the Origin of the Chortis Block, pp. 66-67
91:
48:
159:
107:
489:
Murphy, J. B.; Pisarevsky, S. A.; Nance, R. D.; Keppie, J. D. (2004).
181:
Three models have been proposed for the origin of the Chortis Block:
139:
52:
44:
147:
131:
40:
163:
143:
114:
19:
146:
the Chortis Block thus formed part of the northern margin of
539:"The Maya-ChortĂs boundary: a tectonostratigraphic approach"
488:
291:
262:, Geologic and tectonic setting of the Chortis Block, p. 71
150:, located south of other Peri-Gondwanan terranes such as
470:
Geologica Acta: An International Earth Science Journal
294:, Fig. 2a-c, p. 662; Middle American terranes, p. 667
98:
subducts beneath its western margin resulting in the
384:
343:
287:
285:
113:The Chortis Block can be subdivided into several
648:
74:The northern margin of the Chortis Block is the
587:
330:
318:
282:
276:
259:
142:. Before the Early Carboniferous formation of
588:Rogers, R. D.; Mann, P.; Emmet, P. A. (2007).
302:
300:
385:Keppie, J. D.; Morán-Zenteno, D. J. (2005).
31:is a 400–600 km (250–370 mi)-wide
297:
110:border and the offshore Hess Escarpment.
59:) located in the northwest corner of the
18:
495:International Journal of Earth Sciences
442:Revista Mexicana de Ciencias GeolĂłgicas
649:
375:
306:
16:Geologic formation in Central America.
460:
359:
205:supported by geological observations.
169:
125:
120:
13:
134:, then the northern margin of the
14:
698:
596:. Vol. 428. pp. 66–88.
231:Caribbean large igneous province
344:Keppie & Morán-Zenteno 2005
352:
336:
324:
321:, Tectonic Significance, p. 66
312:
265:
253:
1:
331:Rogers, Mann & Emmet 2007
319:Rogers, Mann & Emmet 2007
277:Rogers, Mann & Emmet 2007
260:Rogers, Mann & Emmet 2007
241:
186:
546:International Geology Review
391:International Geology Review
273:Ortega-Gutiérrez et al. 2007
104:Central America Volcanic Arc
7:
566:10.2747/0020-6814.49.11.996
224:
90:strike-slip boundary. The
10:
703:
662:Geology of Central America
411:10.2747/0020-6814.47.5.473
368:
515:10.1007/s00531-004-0412-9
348:Morán-Zenteno et al. 2009
69:
657:Geology of the Caribbean
246:
23:Extent of Chortis Block
667:Geology of El Salvador
24:
602:10.1130/2007.2428(04)
592:. In Mann, P. (ed.).
100:Middle America Trench
22:
687:Geology of Nicaragua
672:Geology of Guatemala
271:Compare for example
55:, and the off-shore
33:continental fragment
677:Geology of Honduras
558:2007IGRv...49..996O
507:2004IJEaS..93..659M
403:2005IGRv...47..473K
461:James, K. (2006).
292:Murphy et al. 2004
25:
682:Geology of Mexico
236:Galápagos hotspot
176:continental crust
170:Laurentian origin
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642:
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552:(11): 996–1024.
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136:Amazonian Craton
126:Gondwanan origin
121:Tectonic history
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64:Caribbean Plate
37:Central America
17:
12:
11:
5:
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635:|journal=
610:
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501:(5): 659–682.
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476:(1–2): 279–302
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397:(5): 473–491.
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96:Farallon Plate
84:North American
71:
68:
57:Nicaragua Rise
15:
9:
6:
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3:
2:
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275:, Fig. 9 and
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218:South America
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82:fault of the
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30:
29:Chortis Block
21:
615:. Retrieved
593:
577:. Retrieved
549:
545:
526:. Retrieved
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494:
478:. Retrieved
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469:
450:. Retrieved
445:
441:
422:. Retrieved
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338:
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314:
267:
255:
209:
180:
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129:
112:
73:
28:
26:
307:Blakey 2003
49:El Salvador
651:Categories
360:James 2006
242:References
108:Costa Rica
637:ignored (
627:cite book
574:140702379
523:128382334
448:: 177–188
419:129238327
208:A third,
140:Laurentia
88:Caribbean
53:Guatemala
45:Nicaragua
279:, Fig. 1
225:See also
199:Polochic
156:Carolina
148:Gondwana
132:Colombia
115:terranes
102:and the
80:Polochic
41:Honduras
617:4 March
579:4 March
554:Bibcode
528:4 March
503:Bibcode
480:4 March
424:4 March
399:Bibcode
369:Sources
210:in situ
195:Motagua
164:Florida
160:Yucatán
144:Pangaea
76:Motagua
61:oceanic
608:
572:
521:
452:30 Dec
417:
191:Cayman
162:, and
152:Oaxaca
70:Extent
570:S2CID
542:(PDF)
519:S2CID
466:(PDF)
438:(PDF)
415:S2CID
346:, or
247:Notes
214:North
92:Cocos
639:help
619:2018
606:ISBN
581:2018
530:2018
482:2018
454:2022
426:2018
216:and
27:The
598:doi
562:doi
511:doi
407:doi
35:in
653::
631::
629:}}
625:{{
604:.
568:.
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550:49
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544:.
517:.
509:.
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468:.
446:26
444:.
440:.
413:.
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395:47
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389:.
299:^
284:^
187:c.
158:,
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39:(
Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.
