395:
118:
429:
420:
411:
402:
178:
159:
456:
447:
438:
197:
678:
are views on the successively younger formations, starting with the
Lisandro Formation to the northwest of Lake Los Barreales, and finally crossing the Anacleto Formation about 35 kilometres (22 mi) down the road near the eastern tip of the lake. The older strata are exposed south of Lake Los
561:
There are seven formations within the Neuquén Group. These are divided into three subgroups named after major rivers in the area. In some works, the subgroups themselves are treated as formations and what usually is considered to be the formations as mere members of these. However, particularly in
860:"Paleoambientes sedimentarios del Cretácico Superior de la Formación Plottier (Grupo Neuquén), Departamento Confluencia, Neuquén (Sedimentary paleoenvironments in the Upper Cretaceous Plottier Formation (Neuquen Group), Confluencia, Neuquén)"
903:
864:
898:
541:. Although several different types of environments are represented in various sections of the Neuquén Group, the dominant regime is
394:
744:
306:
267:
908:
735:
693:
260:
585:
172:
913:
739:
726:
593:
181:
893:
750:
627:
609:
569:
162:
759:
697:
819:"Cretaceous terrestrial beds from the Neuquén Basin (Argentina) and their tetrapod assemblages"
708:
526:
765:
712:
635:
200:
832:
688:
657:
621:
615:
502:
240:
215:
191:
147:
562:
the Río Limay
Subgroup, the formations are clearly composed of very distinct rock layers.
8:
823:
836:
671:
645:
603:
579:
530:
482:
341:
205:
186:
167:
123:
130:
in the center of this photo.To the lower left of the lake, a swath of light yellowish
859:
818:
702:
651:
210:
135:
510:
225:
840:
730:
538:
534:
349:
345:
844:
675:
367:
127:
747:, Campanian to Maastrichtian fossiliferous formation of the Golfo San Jorge Basin
506:
498:
230:
721:
814:
299:
887:
478:
321:
308:
282:
269:
76:
29:
514:
754:
717:
51:
705:, Campanian to Maastrichtian fossiliferous formation of the Paraná Basin
768:, Santonian to Campanian fossiliferous formation of northern Antarctica
490:
117:
96:
61:
33:
382:
597:
573:
494:
486:
131:
101:
45:
37:
639:
546:
542:
91:
86:
71:
66:
56:
762:, Albian to Santonian fossiliferous formation of the Austral Basin
667:
177:
812:
158:
106:
81:
122:
Almost the whole extent of the Neuquén Group is exposed between
858:
Sánchez, María Lidia; Heredia, Susana; Calvo, Jorge O. (2006).
550:
738:, Campanian to Maastrichtian fossiliferous formation of the
696:, Campanian to Maastrichtian fossiliferous formation of the
196:
720:, Coniacian to Maastrichtian fossiliferous group of the
711:, Cenomanian to Turonian fossiliferous formation of the
565:
Neuquén Group strata, ordered from youngest to oldest
857:
792:
790:
885:
787:
553:types have been discovered in these sediments.
778:
489:. Rocks in the Neuquén Group fall within the
865:Revista de la Asociación Geológica Argentina
729:, Cenomanian fossiliferous formation of the
753:, Campanian fossiliferous formation of the
116:
16:Group of geologic formations in Argentina
904:Upper Cretaceous Series of South America
886:
517:, dated to 98 and 79 Ma respectively.
505:and is itself overlain by the younger
624:(late Turonian to earliest Coniacian)
455:
446:
437:
428:
419:
410:
401:
606:(late Coniacian ?to early Santonian)
654:(late Cenomanian to early Turonian)
13:
525:Deposits have been located in the
14:
925:
899:Geologic formations of Argentina
454:
445:
436:
427:
418:
409:
400:
393:
195:
176:
157:
49:
806:
813:Leanza, H.A.; Apesteguia, S.;
556:
520:
501:Period. It overlies the older
1:
845:10.1016/j.cretres.2003.10.005
817:; De la Fuente, M.S. (2004).
772:
694:Angostura Colorada Formation
300:Approximate paleocoordinates
7:
745:Lago Colhué Huapí Formation
682:
10:
930:
784:Leanza et al., 2004, p. 63
586:Bajo de la Carpa Formation
250:500 m (1,600 ft)
173:Bajo de la Carpa Formation
727:Cerro Fortaleza Formation
648:(middle to late Turonian)
513:, separated from both by
463:Neuquén Group (Argentina)
388:
378:
373:
363:
355:
337:
298:
259:
254:
246:
236:
221:
153:
143:
115:
28:
23:
751:Los Blanquitos Formation
628:Cerro Lisandro Formation
610:Sierra Barrosa Formation
760:Mata Amarilla Formation
698:North Patagonian Massif
709:Bajo Barreal Formation
670:, on the road between
766:Santa Marta Formation
713:Golfo San Jorge Basin
638:(Cenomanian to early
570:Río Colorado Subgroup
163:Río Colorado Subgroup
909:Cretaceous Argentina
689:List of fossil sites
658:Candeleros Formation
622:Portezuelo Formation
616:Los Bastos Formation
594:Río Neuquén Subgroup
576:to early Campanian)
503:Lohan Cura Formation
241:Lohan Cura Formation
216:Candeleros Formation
192:Portezuelo Formation
182:Río Neuquén Subgroup
126:and the bend of the
837:2004CrRes..25...61L
824:Cretaceous Research
483:geologic formations
318: /
279: /
30:Stratigraphic range
736:Colorado Formation
672:Lake Los Barreales
660:(early Cenomanian)
646:Lisandro Formation
636:Río Limay Subgroup
612:(middle Coniacian)
604:Plottier Formation
596:(late Turonian to
580:Anacleto Formation
206:Lisandro Formation
201:Río Limay Subgroup
187:Plottier Formation
168:Anacleto Formation
124:Lake Los Barreales
703:Asencio Formation
652:Huincul Formation
630:(middle Turonian)
618:(early Coniacian)
582:(early Campanian)
545:deposition. Many
471:
470:
350:Mendoza Provinces
211:Huincul Formation
136:Huincul Formation
921:
914:Mapuche language
880:
878:
877:
854:
852:
851:
801:
794:
785:
782:
458:
457:
449:
448:
440:
439:
431:
430:
422:
421:
413:
412:
404:
403:
397:
333:
332:
330:
329:
328:
323:
319:
316:
315:
314:
311:
294:
293:
291:
290:
289:
284:
280:
277:
276:
275:
272:
199:
180:
161:
120:
111:
48:
34:Early Cenomanian
21:
20:
929:
928:
924:
923:
922:
920:
919:
918:
884:
883:
875:
873:
849:
847:
809:
804:
795:
788:
783:
779:
775:
685:
559:
523:
507:Allen Formation
499:Late Cretaceous
467:
466:
465:
464:
461:
460:
459:
451:
450:
442:
441:
433:
432:
424:
423:
415:
414:
406:
405:
326:
324:
320:
317:
312:
309:
307:
305:
304:
287:
285:
281:
278:
273:
270:
268:
266:
265:
231:Allen Formation
228:
213:
208:
203:
189:
184:
170:
165:
139:
134:of the group's
110:
109:
104:
99:
94:
89:
84:
79:
74:
69:
64:
59:
54:
43:
42:
40:
38:Early Campanian
17:
12:
11:
5:
927:
917:
916:
911:
906:
901:
896:
882:
881:
855:
808:
805:
803:
802:
786:
776:
774:
771:
770:
769:
763:
757:
748:
742:
740:Colorado Basin
733:
724:
715:
706:
700:
691:
684:
681:
664:
663:
662:
661:
655:
649:
633:
632:
631:
625:
619:
613:
607:
591:
590:
589:
583:
558:
555:
522:
519:
515:unconformities
511:Malargüe Group
497:stages of the
469:
468:
462:
453:
452:
444:
443:
435:
434:
426:
425:
417:
416:
408:
407:
399:
398:
392:
391:
390:
389:
386:
385:
380:
376:
375:
371:
370:
365:
361:
360:
357:
353:
352:
339:
335:
334:
302:
296:
295:
263:
257:
256:
252:
251:
248:
244:
243:
238:
234:
233:
226:Malargüe Group
223:
219:
218:
155:
151:
150:
145:
141:
140:
121:
113:
112:
105:
100:
95:
90:
85:
80:
75:
70:
65:
60:
55:
50:
26:
25:
15:
9:
6:
4:
3:
2:
926:
915:
912:
910:
907:
905:
902:
900:
897:
895:
894:Neuquén Group
892:
891:
889:
871:
867:
866:
861:
856:
846:
842:
838:
834:
830:
826:
825:
820:
816:
811:
810:
799:
793:
791:
781:
777:
767:
764:
761:
758:
756:
752:
749:
746:
743:
741:
737:
734:
732:
731:Austral Basin
728:
725:
723:
719:
716:
714:
710:
707:
704:
701:
699:
695:
692:
690:
687:
686:
680:
677:
676:Neuquén River
673:
669:
659:
656:
653:
650:
647:
644:
643:
641:
637:
634:
629:
626:
623:
620:
617:
614:
611:
608:
605:
602:
601:
599:
595:
592:
587:
584:
581:
578:
577:
575:
571:
568:
567:
566:
563:
554:
552:
548:
544:
540:
536:
532:
528:
518:
516:
512:
508:
504:
500:
496:
492:
488:
484:
480:
476:
475:Neuquén Group
396:
387:
384:
381:
377:
372:
369:
368:Neuquén Basin
366:
362:
358:
354:
351:
347:
343:
340:
336:
331:
322:44.4°S 47.2°W
303:
301:
297:
292:
283:38.5°S 68.7°W
264:
262:
258:
253:
249:
245:
242:
239:
235:
232:
227:
224:
220:
217:
212:
207:
202:
198:
194:
193:
188:
183:
179:
174:
169:
164:
160:
156:
152:
149:
146:
142:
137:
133:
129:
128:Neuquén River
125:
119:
114:
108:
103:
98:
93:
88:
83:
78:
73:
68:
63:
58:
53:
47:
39:
35:
31:
27:
24:Neuquén Group
22:
19:
874:. Retrieved
869:
863:
848:. Retrieved
828:
822:
807:Bibliography
797:
780:
722:Paraná Basin
665:
564:
560:
524:
474:
472:
374:Type section
327:-44.4; -47.2
288:-38.5; -68.7
175:
138:are visible.
18:
815:Novas, F.E.
755:Salta Basin
718:Bauru Group
679:Barreales.
588:(Santonian)
557:Subdivision
521:Description
325: /
286: /
261:Coordinates
44:98–79
888:Categories
876:2019-02-16
850:2019-02-16
773:References
549:and other
491:Cenomanian
132:sandstones
831:: 61–87.
666:South of
598:Coniacian
574:Santonian
531:Río Negro
527:provinces
495:Campanian
493:to early
487:Argentina
485:found in
379:Named for
359:Argentina
342:Río Negro
247:Thickness
222:Underlies
154:Sub-units
796:Sánchez
683:See also
674:and the
640:Turonian
547:dinosaur
543:alluvial
255:Location
237:Overlies
833:Bibcode
539:Mendoza
535:Neuquén
509:of the
383:Neuquén
356:Country
346:Neuquén
313:47°12′W
310:44°24′S
274:68°42′W
271:38°30′S
872:: 3–18
800:(2006)
798:et al.
551:fossil
537:, and
364:Extent
348:&
338:Region
229:
214:
209:
204:
190:
185:
171:
166:
668:Añelo
479:group
477:is a
148:Group
473:The
144:Type
52:PreꞒ
841:doi
529:of
481:of
890::
870:61
868:.
862:.
839:.
829:25
827:.
821:.
789:^
642:)
600:)
533:,
344:,
102:Pg
46:Ma
32::
879:.
853:.
843::
835::
572:(
107:N
97:K
92:J
87:T
82:P
77:C
72:D
67:S
62:O
57:Ꞓ
41:~
36:-
Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.
