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http://dspace.mediu.edu.my:8181/xmlui/handle/10261/2487| Title: | U/Th dating of Quaternary travertines at the middle River Llobregat (NE Iberian Peninsula, Nortwestern Mediterranean). Correlation with sea-level changes |
| Keywords: | Travertine U/Th dating River dynamics Sea-level changes Pleistocene-Holocene |
| Publisher: | Consejo Superior de Investigaciones Científicas (España) Universidad de Barcelona |
| Description: | The dating of the fluvial terraces of the middle River Llobregat enabled one to establish a correlation between
the sedimentation episodes in continental zones and in neighbouring deltaic and coastal areas in the NE Iberian
continental margin. The fluvial Terraces 4 (+85-95 m above river level) and 3 (+55-65 m above river level) are
made up by or include travertines, which were deposited around 350,000 and 111,000 years ago, respectively.
These radiometric ages correspond to two high sea level periods: the Eemian interglacial (isotopic stage 5e) and
the interglacial related to isotopic stage 9. However, other travertine units in the valley, such as the Can Tobella
staggered cascade travertines, were formed during the Holocene, probably due to hydrothermal spring activity
related to the tectonic contact between the Catalan Coastal Ranges and the Ebro Basin. We are indebted to Dr. Ferran Colombo who helped in the fieldwork and provided useful comments. We also acknowledge the help of Ana Maria Luque during the fieldwork. We should like to thank Graciela Monzón (Institute of Earth Sciences ‘Jaume Almera’, CSIC, Barcelona) for carrying out the radiochemical separation and the radioisotopic determinations. Peer reviewed |
| URI: | http://dspace.mediu.edu.my:8181/xmlui/handle/10261/2487 |
| Other Identifiers: | Geologica Acta 5(1): 109-117 (2007) 1695-6133 http://hdl.handle.net/10261/2487 |
| Appears in Collections: | Digital Csic |
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