Depositional Environment of Coral–Rudist Associations inthe Upper Cretaceous Cardenas Formation (Central Mexico)
<div>In the Cardenas Formation (central Mexico), a 175 m thick sedimentary</div><div>sequence of Maastrichtian age was analyzed with respect to its palaeontology and sedimentology. A wide variety of lithological and palaeontological features characterize this sequence comprising un...
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Croatian Geological Survey
2003-12-01
|
| Series: | Geologia Croatica |
| Subjects: | |
| Online Access: | http://www.geologia-croatica.hr/ojs/index.php/GC/article/view/224 |
| _version_ | 1818537863496597504 |
|---|---|
| author | Armin A. Schafhauser Stefan A. Goetz Rosemarie A. Baron-Szabo Wolfgang A. Stinnesbeck |
| author_facet | Armin A. Schafhauser Stefan A. Goetz Rosemarie A. Baron-Szabo Wolfgang A. Stinnesbeck |
| author_sort | Armin A. Schafhauser |
| collection | DOAJ |
| description | <div>In the Cardenas Formation (central Mexico), a 175 m thick sedimentary</div><div>sequence of Maastrichtian age was analyzed with respect to its palaeontology and sedimentology. A wide variety of lithological and palaeontological features characterize this sequence comprising unfossiliferous and fossil-bearing sand- and siltstones, and diverse rudist and coral–rudist associations in carbonate or mixed carbonate/clastic lithologies. A total of 24 rudist and coral–rudist associations are exposed in the investigated section, which are grouped into 5 limestone units. Radiolitid assemblages, coral–rudist reefs, coral-domi-nated reefs, and hippuritid-dominated reefs are present. The stacking pattern of these reef intervals indicates a general transgressive trend through the entire section. Smaller-scale facies trends could be distinguished within each limestone unit, comprising deepening-upward sequences, defined by a shoreface–calcareous algae–radiolitid–marl facies transition, and shallowing-upward sequences defined by a hippuritid–actaeonellid–coral/rudist facies transition. This cyclic sedimentation pattern is obscured by an episodic input of clastic sediments</div><div>derived from the uplifting Sierra Madre Oriental, which in turn triggered either the development or decline of reefs.</div> |
| first_indexed | 2024-12-11T18:56:14Z |
| format | Article |
| id | doaj.art-baf5a610a8cc4e52938aaa4d1b1d0238 |
| institution | Directory Open Access Journal |
| issn | 1330-030X 1333-4875 |
| language | English |
| last_indexed | 2024-12-11T18:56:14Z |
| publishDate | 2003-12-01 |
| publisher | Croatian Geological Survey |
| record_format | Article |
| series | Geologia Croatica |
| spelling | doaj.art-baf5a610a8cc4e52938aaa4d1b1d02382022-12-22T00:54:09ZengCroatian Geological SurveyGeologia Croatica1330-030X1333-48752003-12-0156218719810.4154/GC.2003.12138Depositional Environment of Coral–Rudist Associations inthe Upper Cretaceous Cardenas Formation (Central Mexico)Armin A. Schafhauser0Stefan A. Goetz1Rosemarie A. Baron-Szabo2Wolfgang A. Stinnesbeck3Geological Institute, University of KarlsruheGeological Institute, University of KarlsruheDepartment of Invertebrate Zoology, Smithsonian InstitutionGeological Institute, University of Karlsruhe (TH)<div>In the Cardenas Formation (central Mexico), a 175 m thick sedimentary</div><div>sequence of Maastrichtian age was analyzed with respect to its palaeontology and sedimentology. A wide variety of lithological and palaeontological features characterize this sequence comprising unfossiliferous and fossil-bearing sand- and siltstones, and diverse rudist and coral–rudist associations in carbonate or mixed carbonate/clastic lithologies. A total of 24 rudist and coral–rudist associations are exposed in the investigated section, which are grouped into 5 limestone units. Radiolitid assemblages, coral–rudist reefs, coral-domi-nated reefs, and hippuritid-dominated reefs are present. The stacking pattern of these reef intervals indicates a general transgressive trend through the entire section. Smaller-scale facies trends could be distinguished within each limestone unit, comprising deepening-upward sequences, defined by a shoreface–calcareous algae–radiolitid–marl facies transition, and shallowing-upward sequences defined by a hippuritid–actaeonellid–coral/rudist facies transition. This cyclic sedimentation pattern is obscured by an episodic input of clastic sediments</div><div>derived from the uplifting Sierra Madre Oriental, which in turn triggered either the development or decline of reefs.</div>http://www.geologia-croatica.hr/ojs/index.php/GC/article/view/224Upper Cretaceous, Maastrichtian, Reefs, Corals, Rudists |
| spellingShingle | Armin A. Schafhauser Stefan A. Goetz Rosemarie A. Baron-Szabo Wolfgang A. Stinnesbeck Depositional Environment of Coral–Rudist Associations inthe Upper Cretaceous Cardenas Formation (Central Mexico) Geologia Croatica Upper Cretaceous, Maastrichtian, Reefs, Corals, Rudists |
| title | Depositional Environment of Coral–Rudist Associations inthe Upper Cretaceous Cardenas Formation (Central Mexico) |
| title_full | Depositional Environment of Coral–Rudist Associations inthe Upper Cretaceous Cardenas Formation (Central Mexico) |
| title_fullStr | Depositional Environment of Coral–Rudist Associations inthe Upper Cretaceous Cardenas Formation (Central Mexico) |
| title_full_unstemmed | Depositional Environment of Coral–Rudist Associations inthe Upper Cretaceous Cardenas Formation (Central Mexico) |
| title_short | Depositional Environment of Coral–Rudist Associations inthe Upper Cretaceous Cardenas Formation (Central Mexico) |
| title_sort | depositional environment of coral rudist associations inthe upper cretaceous cardenas formation central mexico |
| topic | Upper Cretaceous, Maastrichtian, Reefs, Corals, Rudists |
| url | http://www.geologia-croatica.hr/ojs/index.php/GC/article/view/224 |
| work_keys_str_mv | AT arminaschafhauser depositionalenvironmentofcoralrudistassociationsintheuppercretaceouscardenasformationcentralmexico AT stefanagoetz depositionalenvironmentofcoralrudistassociationsintheuppercretaceouscardenasformationcentralmexico AT rosemarieabaronszabo depositionalenvironmentofcoralrudistassociationsintheuppercretaceouscardenasformationcentralmexico AT wolfgangastinnesbeck depositionalenvironmentofcoralrudistassociationsintheuppercretaceouscardenasformationcentralmexico |