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Biostratigraphy and sequence stratigraphy of the Beriasian-lowest Aptian (Lower Cretaceous) of the Rio Argos succession, Caravaca, SE Spain
| Hoedemaeker, Ph.J. and Leereveld, H. | |
| 1995 | |
| Cretaceous Research (1995) 16: 195-230 | |
| Biostratigraphy and sequence stratigraphy of the Beriasian-lowest Aptian (Lower Cretaceous) of the Rio Argos succession, Caravaca, SE Spain |
Hoedemaeker, Ph.J. and Leereveld, H., 1995; Biostratigraphy and sequence stratigraphy of the Beriasian-lowest Aptian (Lower Cretaceous) of the Rio Argos succession, Caravaca, SE Spain. Cretaceous Research (1995) 16: 195-230 Results of an interdisciplinary stratigraphical study of the Berriasian to lowest Aptian (Lower Cretaceous) succession in the Subbetic Zone of the Betic Cordillera (S Spain) are presented. The pelagic succession is exposed in a nearly continuous outcrop section along the Rio Argos and its tributaries west of Caravaca (SE Spain). Detailed lithologic columns are given as well as a brief description of the lithology. The boundary stratotypes of the two upperrnost Hauterivian and one uppermost Berriasian ammonite chronosubzones are formally proposed here. The biozones of dinoflagellate cysts, calpionellids, nannofossils, and planktonic foraminifera are calibrated against the standard ammonite zonation for the Tethyan Lower Cretaceous. The depositional sequences are delimited and after comparison with the global sea-level chart several additional sequences are identified. The combination of standard ammonite biochronozones and depositional sequences enables precise chronostratigraphic calibration of other biozones and thus provides a firrn chronostratigraphic framework for global correlation. KEY WORDS: Lower Cretaceous; sequence stratigraphy; integrated stratigraphy; biozonation; ammonites; dinoflagellate cysts; calpionellids; nannofossils; planktonic foraminifera; Betic Cordillera; Spain.