Upper Proterozoic and Cambrian rocks in the Caborca region, Sonora, Mexico
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Upper Proterozoic and Cambrian rocks in the Caborca region, Sonora, Mexico physical stratigraphy, biostratigraphy, paleocurrent studies, and regional relations by John Harris Stewart

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Published by U.S. G.P.O., For sale by the Distribution Branch, Text Products Section, U.S. Geological Survey in Washington, Alexandria, VA .
Written in English

Subjects:

Places:

  • Mexico,
  • Heroica Caborca.

Subjects:

  • Geology, Stratigraphic -- Precambrian.,
  • Geology, Stratigraphic -- Cambrian.,
  • Geology -- Mexico -- Heroica Caborca.

Book details:

Edition Notes

Bibliography: p. 33-36.

Statementby John H. Stewart, Mark A.S. McMenamin, and Juan Manuel Morales-Ramirez.
SeriesU.S. Geological Survey professional paper ;, 1309
ContributionsMcMenamin, Mark A., Morales-Ramírez, Juan Manuel.
Classifications
LC ClassificationsQE653 .S68 1984
The Physical Object
Paginationiii, 36 p. :
Number of Pages36
ID Numbers
Open LibraryOL2998605M
LC Control Number84600060

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Upper Proterozoic and Cambrian rocks in the Caborca region, Sonora, Mexico, physical stratigraphy, biostratigraphy, paleocurrent studies, and regional relations (OCoLC) Material Type: Government publication, National government publication, Internet resource: Document Type: Book, Internet Resource: All Authors / Contributors. Upper Proterozoic and Cambrian rocks in the Caborca region, Sonora, Mexico, physical stratigraphy, biostratigraphy, paleocurrent studies, and regional relations (DLC) (OCoLC) Material Type: Document, Government publication, National government publication, Internet resource: Document Type: Internet Resource, Computer File. Wanneria is an extinct genus from a well-known class of fossil marine arthropods, the lived during the later part of the Botomian stage, which lasted from approximately to million years ago. This faunal stage was part of the Cambrian Period. Wanneria walcottana is the only known species in this genus (i.e. the genus is monotypicKingdom: Animalia. Nevadia is an extinct genus of trilobites, fossil marine arthropods, with species of average size (about centimetres or inches long).It lived during the Atdabanian stage, which lasted from to million years ago, in what are today Western Canada, the Western United States, and : Trilobita.

Geologic context. Neoproterozoic–Early Palaeozoic strata of Mexico are only exposed in northern Sonora, and units spanning the Ediacaran/Early Cambrian boundary are best exposed in a series of mountains near Caborca, Pitiquito and Sahuaripa (Stewart et al. ; Stewart and Poole ; Corsetti et al. in press).Fossils figured herein were collected in situ from stratigraphically intact Cited by: Upper Proterozoic and Cambrian Rocks in the Caborca Region, Sonora, Mexico-Physical Stratigraphy, Biostratigraphy, Paleocurrent Studies and Regional Relations. Book Full-text available. 1 Departamento de Geología, Universidad de Sonora, Hermosillo, Sonora, México; 2 ICMyL, UNAM, Circuito Exterior, Ciudad Universitaria, A. P. , México, DF ; Luigi Radelli – email: [email protected]; Vivianne Solis Weiss – email: [email protected] ABSTRACT. In the Caborca region of western Sonora a Precambrian Z does not cover a unique Precambrian socle . Proc. Natl. Acad. Sci. USA Vol. 93, pp. , May Geology EdiacaranbiotafromSonora,Mexico (Caborca region/Clemente Formation/early animals and protoctists/Johnnie oolite) MARKA. S. MCMENAMIN Department ofGeography and Geology, Mount Holyoke College, South Hadley, MACited by:

Northern Sonora, Mexico contains extensive exposures of Mesozoic conglomerate whose facies distributions and provenance patterns provide important constraints on tectonic models that have been proposed for the unately, original Mesozoic depositional relationships in northern Sonora are commonly overprinted by metamorphic fabrics and structures associated with mid-Tertiary Cited by: 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 In the past had been assigned to this Socle a radiometric age of Ga but new results [SHRIMP on zircon] rather suggest a .   Stewart JH et al () Upper Proterozoic and Cambrian rocks in the Caborca region, Sonora, Mexico-physical stratigraphy, biostratigraphy, Paleocurrent studies and regional relations. U S Geol Surv Prof Pap –36 Google Scholar.   Despite the occurrence of Neoproterozoic strata throughout the southwestern U.S. and Sonora, Mexico, glacial units overlain by enigmatic cap carbonates have not been well-documented south of Death Valley, California. Here, we describe in detail the first glaciogenic diamictite and cap carbonate succession from Mexico, found in the Cerro Las Bolas Group. The diamictite is exposed near .