Boletín de Geología

Vol. 30 Núm. 2 (2008): Boletín De Geología
Artículos

FOSSIL CONTENT AND STRUCTURAL RELATIONSHIPS OF THE SAN LUIS ZONE AND THE CABORCA ZONE OF NW SONORA, MEXICO, SUPPRESSION OF THE PRECAMBRIAN Z OF CABORCA

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  • Luigi Radelli,
  • Vivianne Solis Weiss,
  • Miguel Dórame-Navarro,
  • Lissette del Carmen De La Cruz-Ortega,
  • Jesé Urrutia
Luigi Radelli
Biografía
Vivianne Solis Weiss
Biografía
Miguel Dórame-Navarro
Biografía
Lissette del Carmen De La Cruz-Ortega
Biografía
Jesé Urrutia
Biografía

Publicado 2009-04-21

Cómo citar

Radelli, L., Solis Weiss, V., Dórame-Navarro, M., De La Cruz-Ortega, L. del C., & Urrutia, J. (2009). FOSSIL CONTENT AND STRUCTURAL RELATIONSHIPS OF THE SAN LUIS ZONE AND THE CABORCA ZONE OF NW SONORA, MEXICO, SUPPRESSION OF THE PRECAMBRIAN Z OF CABORCA. Boletín De Geología, 30(2). Recuperado a partir de https://revistas.uis.edu.co/index.php/revistaboletindegeologia/article/view/37
Aviso de derechos de autor/a

Resumen

In the Caborca region of western Sonora a Precambrian Z does not cover a unique Precambrian socle as previously believed. Two tectonic zones occur there instead : the San Luis Zone and the Caborca Zone. The frst is comprised of the Precambrian San Luis socle of gneiss and granite, crossed by 1.1 Ga old anorthosites, the San Luis sedimentary cover, and, above it, a Lower Jurassic volcano-sedimentary sequence. The Caborca Zone consists of the Precambrian Bamori socle of parametamorphic rocks crossed by 1.1 Ga old Aibo granite, and of the Gamuza sedimentary cover. 1.1 Ga ago the two zones were far away from each other. They have been brought together by the Nevadian orogeny. Both zones are allochthonous, and the Caborca Zone is a nappe upon the San Luis Zone. The lowermost units of the Gamuza cover furnished psammocorals and a possible Pterophyllum jageri (?). Accordingly, its geological age is either Palaeozoic or Triassic.The San Luis cover furnished Nematophites [Prototaxites (?) and Nematothallus] from its lower part; Calcispongiae, Cardaicarpus' seeds, and Artisia from its upper part. Thus, it is a Devono-Carboniferous unit. The study area belongs in the « Baja-Borderland » block, which underwent, an Eocene northwards drifting of about 900 - 1000 km, and a 30º to 40º clockwise rotation relative to the main part of Sonora. 

Keywords: Sonora, Caborca, Caborca Zone, San Luis Zone, Precambrian socle, phanerozoic cover, nappe, Baja-Borderland block.

 

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Referencias

Abbott, P. L., and Smith, T.E. 1989. Sonora, Mexico, source for the Eocene Poway Conglomerte of southern California. Geology, 17: 329–332.

Altmeyer, H. 1993. Zwei ungewoehnliche Prototaxites-Funde, Der Aufschluss, 44(5): 295-297

Altmeyer, H. 1978. Die Prototaxitenvon Arenrath, Grondboor en Hamer, 1: 9-12

Altmeyer, H. 1978. Prototaxiten im Taunusquarzit, Grondboor en Hamer, 4: 122-124.

Altmeyer, H., 1975, Astnarben an Prototaxiten?, Der Aufschluss, Sonderheft, 24(9): 350-356

Altmeyer, H. 1971. Die Prototaxiten von Uckerath unter dem Mikroskop, Der Aufschluss, Sonderheft, 22(10): 305-308

Altmeyer, H. 1969. Reicher Fundort fuer Prototaxiten in Uckerath, Der Aufschluss, Sonderheft, 20(5): 135-136

Anderson, T. H., and Silver, L. T. 1971. Preliminary History of the Precambrian rocks, Bamori región, Sonora. Abstracts with Programs. G. S. A,, 3(2): 72-73

Anderson, T. H., Eels J. H. and Silver L.T. 1979. Precambrian and Paleozoic rocks of the Caborca región, Sonora, Mexico. In Anderson T. H. and Roldan-Q. J., eds., Geology of Northern Sonora, Geol. Soc. Amer. Ann. Meeting, 1979, Guidebook. pp. 1-22

Anderson, T. H. and Silver L. T. 1979. The role of the Mojave-Sonora Megashear in the tectonic evolution of the northern Sonora, In: Anderson, T. H. and Roldan-Q., J., eds., Geology of northern Sonora, Geol. Soc. Amer. Ann. Meeting, 1979, Guidebook. Field trip 27, pp. 59-68

Anderson, T. H. and Silver L. T. 1981. An Overview of the Precambrian rocks in Sonora, UNAM, Inst. Geol., Revista, 5(2): 131-139

Arbey, F., Koeniguer, J. C. 1979. Les Nématophites et les algueraies de l’Ordovicien et du Dévonien Saharien, Bulletin des Centres de Recherches Exploration-Production Elf-Aquitaine, 3(2): 409-418

Arellano, A. R. V. 1946. Noticias Geológicas del Distrito de Altar, Son., Bol. Soc. Geol. Mexicana 12: 53-58

Arellano, A. R. V. 1956. Relaciones del Cámbrico de Caborca, especialmente con la base del Paleozoico. Tomo II, Parte II, Australia-América XX Congreso de GeologÌa Internacional, 50: 697-759.Arnold, C. D. 1952. A specimen of Prototaxites from the Kettle Point Black Shale of Ontario, Paleontographica, 93B, pp. 45-56.

Burgess, N. D., Edwards, D. 1988. A new Palaeozoic plant closely allied to Prototaxites Dawson, Botanical Journal of the Linnean Society, 97(2): 189-203

Castiñeiras, P., Iriondo, A., Wooden, J.L., Dórame-Navarro, M., and Premo, W.R. 2004. Detrital Zircón U-Pb SHRIMP geochronology of Proteropzoic quartzites from the Bamuri Complex, NW Sonora: Evidence for a Mojave connection; Libro de Resúmenes, p.215, IV Reunión Nacional de Ciencias de la Tierra, Juriquilla, Querétaro; 32 de octubre al 5 de Noviembre del 2004

Cevallos-Ferriz, S. y Weber, R. 1980. Arquitectura, estructura y ambiente de depósito de algunos estromatolitos del Precámbrico Sedimentario de Caborca, Sonora. Univ. Nal. Autón. de México, Inst. Geol. Revista 4 (2): 97-103