A new lithographic limestone deposit in the Upper Cretaceous Austin Group at El Rosario, county of Múzquiz, Coahuila, northeastern Mexico
ABSTRACT At El Rosario, 170 km WNW of Múzquiz in northern Coahuila, Mexico, alternating evenly layered platy limestone and fissile marly limestone of late Turonian-early Coniacian age (Late Cretaceous) contain vertebrate fossils with exceptionally well-preserved anatomical details of their soft tissues, as well as abundant ammonoids, inoceramids and other invertebrates. Deposition was in an open marine shelf environment near the southern opening of the Western Interior Seaway, several hundreds of kilometers south of the North American coastline, in water depths of at least 50-100 m. The present research intends to highlight the enormous preservational potential of this new conservation deposit (Konservat-Lagerstätte) and to analyze the paleoenvironmental conditions present at this locality. Our preliminary data suggest that the El Rosario fossil deposit is a combined result of anoxic bottom conditions, early diagenetic phosphatization, and rapid burial in a soft, micritic lime mud.
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Universidad Nacional Autónoma de México, Instituto de Geología
2005
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| Online Access: | http://www.scielo.org.mx/scielo.php?script=sci_arttext&pid=S1026-87742005000300401 |
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oai:scielo:S1026-877420050003004012018-06-19A new lithographic limestone deposit in the Upper Cretaceous Austin Group at El Rosario, county of Múzquiz, Coahuila, northeastern MexicoStinnesbeck,WolfgangIfrim,ChristinaSchmidt,HaraldRindfleisch,AnjaBuchy,Marie-CélineFrey,EberhardGonzález-González,Arturo H.Vega,Francisco J.Cavin,LionelKeller,GertaSmith,Krister T. Upper Cretaceous fossil preservation Konservat-Lagerstätte limestone Coahuila Mexico ABSTRACT At El Rosario, 170 km WNW of Múzquiz in northern Coahuila, Mexico, alternating evenly layered platy limestone and fissile marly limestone of late Turonian-early Coniacian age (Late Cretaceous) contain vertebrate fossils with exceptionally well-preserved anatomical details of their soft tissues, as well as abundant ammonoids, inoceramids and other invertebrates. Deposition was in an open marine shelf environment near the southern opening of the Western Interior Seaway, several hundreds of kilometers south of the North American coastline, in water depths of at least 50-100 m. The present research intends to highlight the enormous preservational potential of this new conservation deposit (Konservat-Lagerstätte) and to analyze the paleoenvironmental conditions present at this locality. Our preliminary data suggest that the El Rosario fossil deposit is a combined result of anoxic bottom conditions, early diagenetic phosphatization, and rapid burial in a soft, micritic lime mud.info:eu-repo/semantics/openAccessUniversidad Nacional Autónoma de México, Instituto de GeologíaRevista mexicana de ciencias geológicas v.22 n.3 20052005-01-01info:eu-repo/semantics/articletext/htmlhttp://www.scielo.org.mx/scielo.php?script=sci_arttext&pid=S1026-87742005000300401en |
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México |
| countrycode |
MX |
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Revista |
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rev-scielo-mx |
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revista |
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America del Norte |
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| language |
English |
| format |
Digital |
| author |
Stinnesbeck,Wolfgang Ifrim,Christina Schmidt,Harald Rindfleisch,Anja Buchy,Marie-Céline Frey,Eberhard González-González,Arturo H. Vega,Francisco J. Cavin,Lionel Keller,Gerta Smith,Krister T. |
| spellingShingle |
Stinnesbeck,Wolfgang Ifrim,Christina Schmidt,Harald Rindfleisch,Anja Buchy,Marie-Céline Frey,Eberhard González-González,Arturo H. Vega,Francisco J. Cavin,Lionel Keller,Gerta Smith,Krister T. A new lithographic limestone deposit in the Upper Cretaceous Austin Group at El Rosario, county of Múzquiz, Coahuila, northeastern Mexico |
| author_facet |
Stinnesbeck,Wolfgang Ifrim,Christina Schmidt,Harald Rindfleisch,Anja Buchy,Marie-Céline Frey,Eberhard González-González,Arturo H. Vega,Francisco J. Cavin,Lionel Keller,Gerta Smith,Krister T. |
| author_sort |
Stinnesbeck,Wolfgang |
| title |
A new lithographic limestone deposit in the Upper Cretaceous Austin Group at El Rosario, county of Múzquiz, Coahuila, northeastern Mexico |
| title_short |
A new lithographic limestone deposit in the Upper Cretaceous Austin Group at El Rosario, county of Múzquiz, Coahuila, northeastern Mexico |
| title_full |
A new lithographic limestone deposit in the Upper Cretaceous Austin Group at El Rosario, county of Múzquiz, Coahuila, northeastern Mexico |
| title_fullStr |
A new lithographic limestone deposit in the Upper Cretaceous Austin Group at El Rosario, county of Múzquiz, Coahuila, northeastern Mexico |
| title_full_unstemmed |
A new lithographic limestone deposit in the Upper Cretaceous Austin Group at El Rosario, county of Múzquiz, Coahuila, northeastern Mexico |
| title_sort |
new lithographic limestone deposit in the upper cretaceous austin group at el rosario, county of múzquiz, coahuila, northeastern mexico |
| description |
ABSTRACT At El Rosario, 170 km WNW of Múzquiz in northern Coahuila, Mexico, alternating evenly layered platy limestone and fissile marly limestone of late Turonian-early Coniacian age (Late Cretaceous) contain vertebrate fossils with exceptionally well-preserved anatomical details of their soft tissues, as well as abundant ammonoids, inoceramids and other invertebrates. Deposition was in an open marine shelf environment near the southern opening of the Western Interior Seaway, several hundreds of kilometers south of the North American coastline, in water depths of at least 50-100 m. The present research intends to highlight the enormous preservational potential of this new conservation deposit (Konservat-Lagerstätte) and to analyze the paleoenvironmental conditions present at this locality. Our preliminary data suggest that the El Rosario fossil deposit is a combined result of anoxic bottom conditions, early diagenetic phosphatization, and rapid burial in a soft, micritic lime mud. |
| publisher |
Universidad Nacional Autónoma de México, Instituto de Geología |
| publishDate |
2005 |
| url |
http://www.scielo.org.mx/scielo.php?script=sci_arttext&pid=S1026-87742005000300401 |
| work_keys_str_mv |
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| _version_ |
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