182:
905:
17:
310:. Research models in the 1980s describe the fault as system anywhere from 800 km up to 1000 km in length. The kinematics, geometry, extension, and deformation have not been widely agreed upon, therefore the new interest in the El Tigre Fault should lead to further studies using modern technology. These future studies should shed light on the discrepancies that have resulted from lack of in depth information in the past.
75:. It is a major fault with crustal significance. The Andes Mountain belt trends with respect to the Nazca Plate/South American Plate convergence zone, and deformation is divided between the Precordilleran thrust faults and the El Tigre strike-slip motion. The El Tigre Fault is currently seismically active.
194:
The northern subdivision is approximately 41–46 km long. One estimation shows the segment begins where the fault bends to the northeast and is 41 km long. Another estimation places the distinction 5.5 km south of this bend resulting in the northern segment 46 km long. This section
271:
in this segment, some studies conclude a horizontal displacement rate of approximately 1 mm/yr. The southern segment along with the central segment are crossed by several oblique and transverse faults almost perpendicular to the El Tigre Fault. These faults are inferred due to the long linear
267:. It exhibits an uninterrupted linear trace and strike-slip component that are useful in determining offset. The termination point for El Tigre in the south is recognized by a merging within the Precordilleran Paleozoic strata, as well as its extremely disturbed surface deformation. By dating the
280:
The faults location in a seismically active zone and a low erosional environment makes it a good study area. Although many characteristics of geomorphology have been preserved, the area has not been extensively studied using the new methodologies currently available. The fault has sparked new
660:
Bayona, Germán; Montes, Camilo; Cardona, AgustĂn; Jaramillo, Carlos; Ojeda, Germán; Valencia, Victor; Ayala-Calvo, Carolina (August 2011). "Intraplate subsidence and basin filling adjacent to an oceanic arc-continent collision: a case from the southern
Caribbean-South America plate margin".
79:
356:
Fazzito, S.; Rapalini, A.; Cortes, J.; Terrizzano, C. (2011). "Kinematic study in the area of the
Quaternary oblique-slip El Tigre fault, Western Precordillera, Argentina, on the basis of paleomagnetism and anisotropy of magnetic susceptibility".
497:
Siame, L.; Bourles, D.; Sebrier, M.; Bellier, O.; Castano, J.C.; Araujo, M.; Perez, M.; Raisbeck, G.; Yiou, F. (1997). "Cosmogenic dating ranging from 20 to 700 ka of a series of alluvial fan surfaces affected by the El Tigre fault, Argentina".
60:. The fault is divided into three sections based on fault trace geometry, Northern extending between 41–46 km in length, Central extending between 48–53 km in length, and Southern extending 26 km in length. The fault displays a
195:
is more structurally complex than the central and southern sections, due to the segment's northern edge ending in a horse tail termination. This faulted area can be interpreted from the 1 km to 5 km separation of several disperse
246:
with an east-facing slope shows vertical displacement along this part of the fault. The scarp has a slope of 18-24° and maximum height of 85 m. Tectonic shortening appears to have changed direction from WSW-ENE to W-E during the
831:
289:
characteristics within recent years. Previous studies on the El Tigre Fault have a range of inconstancies. Information obtained on the fault can vary from a reactivated fault with a normal component in
824:
429:"The geometry of the active strike-slip El Tigre Fault, Precordillera of San Juan, Central-Western Argentina: integrating resistivity surveys with structural and geomorphological data"
734:
Pindell, J.L.; Higgs, R.; Dewey, J. (1998). "Cenozoic
Palinspastic reconstruction, Paleogeographic evolution and hydrocarbon setting of the Northern Margin of South America".
817:
618:
1594:
786:
Duerto, Leonardo; Escalona, Alejandro; Mann, Paul (2006). "Deep structure of the Mérida Andes and Sierra de Perijá mountain fronts, Maracaibo Basin, Venezuela".
535:
433:
1604:
1521:
770:
594:
Segmentation and horizontal slip rate estimation of the El Tigre fault zone, San Juan
Province (Argentina) from SPOT images analysis
1516:
1251:
1194:
1145:
1053:
264:
181:
1103:
750:
1526:
1083:
1063:
1599:
1073:
592:
Siame, L.; Sebrier, M.; Bellier, O.; Bourles, D.; Castano, J.C.; Aurojo, M.; Yiou, F.; Raisbeck, G. (September 1996).
57:
1559:
1273:
1165:
1150:
1120:
972:
962:
1460:
521:
1283:
1006:
967:
251:, altering the kinematics to the present transpressive/transtensive system from a mainly transcurrent one.
1402:
1261:
1256:
1098:
96:
1221:
707:
Miller, J.B. (1962). "Tectonic Trends in Sierra de Perija and
Adjacent Parts of Venezuela and Colombia".
20:
South
America seismic hazard map with estimated El Tigre Fault location inset. Adapted from illustrations
1564:
1499:
1288:
1130:
1058:
539:
231:
100:
1407:
1187:
1115:
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1135:
894:
670:
509:
442:
134:. Slip rate is estimated to be approximately 1 mm/year and offsets range from 60 to 180 m.
104:
72:
1332:
1308:
904:
16:
1504:
1494:
1380:
1315:
1209:
260:
235:
185:
Transtension and transpression of a right lateral fault. Combined data from illustrations and text.
92:
61:
616:
Costa, C.; et al. (2006). "An
Overview of the Main Quaternary Deformation of South America".
1440:
1392:
1375:
1370:
1360:
1355:
952:
932:
686:
468:
150:
108:
1140:
1108:
720:
259:
The southern subdivision is approximately 26 km long. This segment is characterized by the
1536:
1479:
1430:
1425:
1397:
1238:
884:
766:
500:
29:
1569:
1544:
1455:
1303:
1293:
1216:
1199:
1125:
1068:
957:
942:
927:
919:
795:
758:
751:"Cenozoic tectonic history of the Sierra de Perijá, Venezuela-Colombia, and adjacent basins"
716:
678:
517:
458:
450:
215:
166:
158:
809:
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1450:
1387:
1365:
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1031:
991:
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154:
142:
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115:
1322:
1048:
53:
674:
513:
446:
1435:
1350:
1298:
996:
736:
Society of
Economic Paleontologists and Mineralogists (Society for Sedimentary Geology)
306:
northwest-verging thrust fault, and a south-east dipping normal fault inverted in the
95:
N10°E trending fault, known for its good grade of exposures and markers of horizontal
1588:
1093:
1078:
1043:
1011:
947:
874:
690:
682:
472:
268:
239:
208:
49:
41:
33:
1155:
1088:
889:
227:
226:) form when the right lateral fault bends to the left causing the crust to extend (
223:
212:
103:
of El Tigre strike-slip fault is visible on the western slope of the
Precordillera
1445:
1327:
1268:
1228:
1021:
1016:
879:
869:
864:
282:
248:
243:
207:
The central subdivision is approximately 48–53 km long. This area exhibits
162:
138:
65:
78:
1278:
1204:
1035:
1001:
983:
454:
295:
196:
170:
127:
119:
112:
68:
1470:
303:
286:
123:
37:
757:. Geological Society of America Memoirs. Vol. 162. pp. 239–262.
272:
strands of stream channels, as the faults are not visible on the surface.
157:
at about 30°-31°. In the San Juan
Province, it is part of an east-verging
291:
219:
799:
762:
463:
307:
99:. Its linear traces are apparent throughout the length of the fault.
1179:
915:
299:
64:(horizontal) motion and has formed in response to stresses from the
755:
The Caribbean-South American Plate Boundary and Regional Tectonics
180:
146:
77:
45:
15:
1175:
428:
813:
126:) exposure ages have been used in some studies to estimate the
427:
Fazzito, S.; Cortes, J.; Rapalini, A.; Terrizzano, C. (2013).
903:
709:
Bulletin of the American Association of Petroleum Geologists
82:
Right lateral strike-slip fault with observable displacement
522:
10.1130/0091-7613(1997)025<0975:cdrftk>2.3.co;2
28:
is a 120 km long, roughly north-south trending, major
238:
fault bends to the right causing the crust to compress (
1535:
1478:
1469:
1418:
1343:
1237:
1174:
1030:
981:
914:
845:
587:
585:
583:
581:
579:
577:
149:is N76° and El Tigre releases the north-south
575:
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563:
561:
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825:
538:. U.S. Geological Survey USGS. Archived from
8:
655:
653:
651:
619:Revista de la AsociaciĂłn GeolĂłgica Argentina
492:
490:
488:
486:
484:
482:
351:
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347:
345:
343:
52:. The northern boundary of the fault is the
721:10.1306/BC7438D3-16BE-11D7-8645000102C1865D
635:
633:
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1475:
832:
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390:
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462:
107:. With evidence of activity during the
840:Major South American geological features
644:. W. W. Norton and Company. p. 579.
640:Van Der Pluijm, B.; Marshak, S. (2004).
1595:Geology of San Juan Province, Argentina
434:International Journal of Earth Sciences
319:
169:estimates reveal that a 7 ± 0.5 scale
7:
161:, and is located in a major active
111:to present day, it is considered a
536:"South America seismic hazard map"
14:
56:and its southern boundary is the
683:10.1111/j.1365-2117.2010.00495.x
596:. Third ISAG. St. Malo (France).
1:
44:lies just to the east of the
1605:Seismic faults of Argentina
1621:
1461:Pampean Pegmatite Province
749:Kellogg, James N. (1984).
933:Arequipa-Antofalla Craton
901:
455:10.1007/s00531-013-0873-9
1419:Metallogenetic provinces
943:Central Brazilian Shield
155:continental plate motion
143:oblique convergence zone
1054:Bucaramanga-Santa Marta
32:located in the Western
982:Structures undergoing
963:RĂo de la Plata Craton
908:
302:strike-slip fault, an
186:
83:
21:
907:
184:
81:
19:
1007:Juan Fernández Ridge
968:SĂŁo Francisco Craton
105:fold and thrust belt
91:El Tigre Fault is a
73:South American Plate
1527:Paraná and Etendeka
800:10.1306/10080505033
763:10.1130/MEM162-p239
675:2011BasR...23..403B
542:on October 10, 2012
514:1997Geo....25..975S
447:2013IJEaS.102.1447F
173:could be produced.
1600:Strike-slip faults
1481:Volcanic provinces
1441:El Indio Gold Belt
1239:Sedimentary basins
1104:Magallanes-Fagnano
953:Paranapanema Block
909:
187:
109:Middle Pleistocene
84:
48:mountain range in
22:
1582:
1581:
1578:
1577:
1431:Chilean Iron Belt
1426:Bolivian Tin Belt
1284:Eastern Venezuela
1074:Dolores-Guayaquil
1064:Cordillera Blanca
715:(46): 1565–1595.
265:drainage networks
159:thin-skinned belt
30:strike-slip fault
1612:
1522:Central Atlantic
1482:
1476:
1456:Lithium Triangle
1410:
1383:
1335:
1318:
1311:
1264:
1224:
1212:
1190:
1111:
973:Uruguayan Shield
928:Amazonian Craton
834:
827:
820:
811:
804:
803:
783:
777:
776:
746:
740:
739:
731:
725:
724:
704:
695:
694:
657:
646:
645:
637:
628:
627:
613:
598:
597:
589:
552:
551:
549:
547:
532:
526:
525:
494:
477:
476:
466:
441:(5): 1447–1466.
424:
367:
366:
359:Latinmag Letters
353:
281:interest in its
224:releasing basins
216:geomorphological
167:Moment magnitude
141:/South American
1620:
1619:
1615:
1614:
1613:
1611:
1610:
1609:
1585:
1584:
1583:
1574:
1550:Noronha hotspot
1531:
1480:
1465:
1451:Iron Quadrangle
1414:
1408:
1403:Terra Australis
1381:
1339:
1333:
1316:
1309:
1289:Golfo San Jorge
1262:
1257:Andean foreland
1233:
1222:
1210:
1188:
1170:
1166:Trans-Brazilian
1109:
1084:Eastern Frontal
1026:
992:Antarctic Plate
977:
938:Atlantic Shield
910:
899:
847:Tectonic plates
841:
838:
808:
807:
785:
784:
780:
773:
748:
747:
743:
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728:
706:
705:
698:
659:
658:
649:
642:Earth Structure
639:
638:
631:
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614:
601:
591:
590:
555:
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543:
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533:
529:
496:
495:
480:
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370:
355:
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321:
316:
278:
257:
232:Pressure ridges
205:
197:rupture strands
192:
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89:
12:
11:
5:
1618:
1616:
1608:
1607:
1602:
1597:
1587:
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1576:
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1567:
1562:
1560:Juan Fernández
1557:
1552:
1547:
1541:
1539:
1533:
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1529:
1524:
1519:
1514:
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1507:
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1484:
1473:
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1448:
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1436:Deseado Massif
1433:
1428:
1422:
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1416:
1415:
1413:
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1395:
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1330:
1325:
1320:
1313:
1306:
1301:
1296:
1291:
1286:
1281:
1276:
1271:
1266:
1263:Central Brazil
1259:
1254:
1249:
1243:
1241:
1235:
1234:
1232:
1231:
1226:
1219:
1214:
1207:
1202:
1197:
1192:
1184:
1182:
1172:
1171:
1169:
1168:
1163:
1158:
1153:
1151:Sierra Ballena
1148:
1146:SarandĂ del YĂ
1143:
1138:
1133:
1128:
1123:
1118:
1113:
1106:
1101:
1096:
1091:
1086:
1081:
1076:
1071:
1066:
1061:
1056:
1051:
1046:
1040:
1038:
1028:
1027:
1025:
1024:
1019:
1014:
1009:
1004:
999:
997:Carnegie Ridge
994:
988:
986:
979:
978:
976:
975:
970:
965:
960:
958:RĂo Apa Craton
955:
950:
945:
940:
935:
930:
924:
922:
912:
911:
902:
900:
898:
897:
895:South American
892:
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867:
862:
857:
851:
849:
843:
842:
839:
837:
836:
829:
822:
814:
806:
805:
794:(4): 505–528.
778:
771:
741:
726:
696:
669:(4): 403–422.
663:Basin Research
647:
629:
599:
553:
527:
478:
368:
318:
317:
315:
312:
277:
274:
256:
253:
234:form when the
204:
201:
191:
188:
178:
175:
88:
85:
58:San Juan River
26:El Tigre Fault
13:
10:
9:
6:
4:
3:
2:
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1603:
1601:
1598:
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1389:
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1379:
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1374:
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1364:
1362:
1361:Cariri Velhos
1359:
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1248:
1245:
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1242:
1240:
1236:
1230:
1227:
1225:
1220:
1218:
1217:Neuquén Rifts
1215:
1213:
1208:
1206:
1203:
1201:
1200:AsunciĂłn Rift
1198:
1196:
1193:
1191:
1186:
1185:
1183:
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1177:
1173:
1167:
1164:
1162:
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1119:
1117:
1114:
1112:
1107:
1105:
1102:
1100:
1099:Liquiñe-Ofqui
1097:
1095:
1092:
1090:
1087:
1085:
1082:
1080:
1077:
1075:
1072:
1070:
1067:
1065:
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1057:
1055:
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1050:
1047:
1045:
1042:
1041:
1039:
1037:
1033:
1029:
1023:
1020:
1018:
1015:
1013:
1012:Malpelo Ridge
1010:
1008:
1005:
1003:
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985:
980:
974:
971:
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951:
949:
948:Guiana Shield
946:
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823:
821:
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789:
788:AAPG Bulletin
782:
779:
774:
772:0-8137-1162-2
768:
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297:
293:
288:
284:
276:Discrepancies
275:
273:
270:
269:alluvial fans
266:
262:
261:right-lateral
254:
252:
250:
245:
242:). A bedrock
241:
240:transpressive
237:
236:right-lateral
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50:South America
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42:Precordillera
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34:Precordillera
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738:(58): 45–84.
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544:. Retrieved
540:the original
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362:
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279:
258:
228:transtensive
213:transtensive
206:
193:
163:seismic area
136:
97:displacement
90:
54:Jáchal River
25:
23:
1229:Salta Rifts
1195:Amazon Rift
1036:shear zones
1022:Nazca Ridge
1017:Nazca Plate
885:North Andes
508:(11): 975.
464:11336/21288
365:(B24): 1–5.
283:geometrical
249:Pleistocene
218:features.
177:Fault zones
66:Nazca Plate
1589:Categories
1393:San Rafael
1376:Gondwanide
1371:Famatinian
1356:Brasiliano
1294:Magallanes
1126:Pernambuco
1059:Cochabamba
1002:Chile Rise
984:subduction
546:9 November
314:References
296:Palaeocene
263:offset of
171:earthquake
128:Quaternary
120:Geomorphic
113:Quaternary
101:Morphology
71:under the
69:subducting
1565:San Felix
1555:Galápagos
1545:Ascension
1517:Caribbean
1471:Volcanism
1409:Tilcarian
1344:Orogenies
1247:Altiplano
1223:Paramirim
1205:Cuyo Rift
1141:San RamĂłn
1121:Oca-AncĂłn
860:Caribbean
855:Antarctic
691:128945405
473:129365816
304:Oligocene
287:kinematic
220:Sag ponds
132:slip rate
124:Beryllium
38:Argentina
1570:Trindade
1537:Hotspots
1446:El MutĂşn
1334:Solimões
1310:Pantanal
1299:Malvinas
1274:Colorado
1161:El Tigre
1131:El Pilar
292:Jurassic
255:Southern
190:Northern
130:age and
122:and Be (
1510:Austral
1500:Central
1388:Pampean
1366:Chonide
1317:ParaĂba
1304:Neuquén
1189:AguapeĂ
1180:grabens
1136:Romeral
1094:Huincul
1079:Domeyko
1069:CĂłrdoba
1044:Atacama
920:shields
916:Cratons
875:Malpelo
671:Bibcode
510:Bibcode
501:Geology
443:Bibcode
308:Neogene
203:Central
87:Geology
1490:Andean
1398:Sunsás
1351:Andean
1323:Paraná
1252:Amazon
1211:Espino
1156:Sobral
1089:Gastre
1049:BoconĂł
1032:Faults
890:Scotia
769:
689:
471:
300:Eocene
151:stress
40:. The
1505:South
1495:North
1382:Juruá
1328:Salta
1269:Chaco
1176:Rifts
1116:MorĂłn
880:Nazca
870:Coiba
865:Cocos
687:S2CID
469:S2CID
298:, an
244:scarp
147:Chile
139:Nazca
116:fault
46:Andes
1279:Cuyo
1178:and
1110:Meta
1034:and
918:and
767:ISBN
626:(4).
548:2013
294:and
285:and
211:and
145:off
137:The
24:The
796:doi
759:doi
717:doi
679:doi
518:doi
459:hdl
451:doi
439:102
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Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.
