geoscience.net logo
+ Resolve Article
+ Follow Us
Follow on FacebookFollow on Facebook
Follow on TwitterFollow on Twitter

+ Translate
+ Subscribe to Site Feed
GeoScience Most Shared ContentMost Shared Content

Problems encountered with absolute dating (U-series, ESR) of Spanish calcretes


, : Problems encountered with absolute dating (U-series, ESR) of Spanish calcretes. Quaternary Science Reviews 7(3): 439-445

U-series and ESR dating techniques were applied to calcretes sampled at locations with a chronostratigraphic framework in Spain. ESR dating considering the organic signal at g = 2.0045 leads to an age overestimation up to 200 ka. The percentage of error decreases, however, with increasing age, so that this method may be more suitable to the dating of early Pleistocene samples. Despite the unique limitations of the ESR method to the dating of calcretes, only a differentiation of early, middle, and late Pleistocene calcretes is reasonable.

US$19.90

DOI: 10.1016/0277-3791(88)90043-1


Other references

Mosso, L.; Martínez, A.; Rojas, Mía.Paulina.; Margozzini, P.; Solari, S.; Lyng, T.; Ortíz, J.Andrés.; Carvajal, J., 2013: Frequency of subclinical thyroid problems among women during the first trimester of pregnancy. Thyroid hormones play an important role in fetal neural and cognitive development. Therefore thyroid abnormalities should be detected and treated early during pregnancy. To assess the frequency and risk factors for functional thyroid disorders dur...

Dominguez X.A.; Armas B.E.; Jauregui F., 1972: Chemical study of phoradendrum coryae. Revista Latinoamericana de Quimica 3(1): 28-30

Moser, J.G.; Neuberger, W., 2003: Photoselective marking of biological targets. A drug delivery system and methods are provided wherein a therapeutic/diagnostic agent or a component of the immune system is directed to particular cells in a selected organ or a specific site. Such a system can be formed by a photoselective comp...

Dobler, Paul, 1927: A sensational ammonite find Splendidly preserved soft parts of the animal which lived millions of years ago in the Muschelkalk sea. A popular account of a specimen of Ceratites dorsoplanus from the Muschelkalk (Middle Triassic) of Germany which is said to preserve a natural cast of the soft-parts, hitherto unknown in any ammonite. The specimen is interpreted to show a swimming...

Argentiero, V.; Tavolato, B.; Bertolissi, M.; Gentile, B., 1977: Thymus derived and bone marrow derived lymphocytes in multiple sclerosis. The percentages and the absolute number of T [thymus-derived] and B [bone marrow-derived] lymphocytes in 12 MS [multiple sclerosis] patients and 12 healthy controls were determined. No differences were found between these 2 groups, nor were there...

Chambers, F., 1917: Note on the Transmission of Animal Trypanosomiasis in Northern Rhodesia by Blood-Sucking Flies other than Glossina. In this note Chambers summarises the observations and experiments of a number of authors who have reported the occurrence of trypanosomiasis in Northern Rhodesia and adjoining territories definitely known to be free of the tsetse fly. Some of thes...

Nigro, G.; Bottone, G.; Maiorani, D.; Trombatore, F.; Falasca, S.; Bruno, G., 2016: Pediatric Epidemic of Salmonella enterica Serovar Typhimurium in the Area of L'Aquila, Italy, Four Years after a Catastrophic Earthquake. A Salmonella enterica epidemic occurred in children of the area of L'Aquila (Central Italy, Abruzzo region) between June 2013 and October 2014, four years after the catastrophic earthquake of 6 April 2009. Clinical and laboratory data were co...

Maciejewska Potapczykowa, W.; Wilusz, T.; X Ukasiak, H., 1961: The influence of gibberellin on the carbohydrates content in pea epicotyls. The present paper deals with the influence of gibberellin, [beta]-indoleacetic acid as well as a mixture of gibberellin and [beta]-indoleacetic acid on the carbohydrate content in etiolated pea epicotyls. Using the method described by Bielozierski...

Escoula, L.; Bars, J. le, 1973: Studies on the fungal flora of silage. II. Growth of fungal species under anaerobic conditions. Observations showed that several fungi could grow deeply on good silage.

Colas, B.; Arilla, E.; Prieto, J.P., 1992: Somatostatin binding to a fresh rat astrocyte-enriched suspension. Since there are conflicting reports regarding the effects of somatostatin (SS) on cyclic AMP levels in astrocytes derived from rat cerebral cortex and, to date, the SS binding to mature astrocytes is unknown, the present study has determined SS bi...