GUTIÉRREZ-MARCO, JUAN CARLOS, šTORCH, PETR (1998) Graptolite biostratigraphy of the Lower Silurian (Llandovery) shelf deposits of the Western Iberian Cordillera, Spain. Geological Magazine, 135 (1) 71-92 doi:10.1017/s0016756897007802
| Reference Type | Journal (article/letter/editorial) | ||
|---|---|---|---|
| Title | Graptolite biostratigraphy of the Lower Silurian (Llandovery) shelf deposits of the Western Iberian Cordillera, Spain | ||
| Journal | Geological Magazine | ||
| Authors | GUTIÉRREZ-MARCO, JUAN CARLOS | Author | |
| šTORCH, PETR | Author | ||
| Year | 1998 (January) | Volume | 135 |
| Issue | 1 | ||
| Publisher | Cambridge University Press (CUP) | ||
| DOI | doi:10.1017/s0016756897007802Search in ResearchGate | ||
| Generate Citation Formats | |||
| Mindat Ref. ID | 257550 | Long-form Identifier | mindat:1:5:257550:0 |
| GUID | 0 | ||
| Full Reference | GUTIÉRREZ-MARCO, JUAN CARLOS, šTORCH, PETR (1998) Graptolite biostratigraphy of the Lower Silurian (Llandovery) shelf deposits of the Western Iberian Cordillera, Spain. Geological Magazine, 135 (1) 71-92 doi:10.1017/s0016756897007802 | ||
| Plain Text | GUTIÉRREZ-MARCO, JUAN CARLOS, šTORCH, PETR (1998) Graptolite biostratigraphy of the Lower Silurian (Llandovery) shelf deposits of the Western Iberian Cordillera, Spain. Geological Magazine, 135 (1) 71-92 doi:10.1017/s0016756897007802 | ||
| In | (1998, January) Geological Magazine Vol. 135 (1) Cambridge University Press (CUP) | ||
| Abstract/Notes | Eight Lower Silurian graptolite biozones (triangulatus, convolutus, linnaei, turriculatus, crispus, griestoniensis, tullbergi and spiralis) and three subzones (runcinatus–gemmatus, palmeus and hispanicus) have been recognized in the Sierra Menera, Nevera, and Tremedal massifs in the Castilian Branch of the Iberian Cordillera (Western Iberian Cordillera). Early Silurian, Rhuddanian low-diversity normalograptid faunas are also present and these, together with the rich graptolite faunas of the Aeronian triangulatus and convolutus biozones, come from black, shaly intercalations within the quartzose sandstones of the upper part of the Los Puertos Quartzite. Telychian graptolite biozones have been recognized in the succeeding black-shale sequence of the Bádenas Formation. Diachroneity of the transition from sandstones to black shales is dated by graptolites. It ranges from about the base to at least the top of the linnaei Biozone. We suggest that the Lower Silurian black shales of the Western Iberian Cordillera were deposited in a shallow, shelf environment, not much deeper than that of presumably storm-influenced sandstones of the Los Puertos Quartzite. | ||
See Also
These are possibly similar items as determined by title/reference text matching only.
