2026-04-27T14:11:39Zhttps://riubu.ubu.es/oai/request

oai:riubu.ubu.es:10259/45862022-04-29T12:02:48Zcom_10259.4_2560com_10259_5086com_10259_2604col_10259.4_2561

Calvo Rathert, Manuel 93 500 Morales Contreras, Juan J. ccf03cc2-fd45-416c-8a5d-a3bd0100a1ee 500 Carrancho Alonso, Ángel 104 500 Goguitchaichvili, Avto 978a6f31-eb60-48af-9711-af15682307d5 500 2017-09-06T11:19:41Z 2017-09-06T11:19:41Z 2016-09 1525-2027 http://hdl.handle.net/10259/4586 10.1002/2016GC006396 Sixteen Miocene, Pleistocene, and historic lava flows have been sampled in Lanzarote (Canary Islands) for paleointensity analysis with both the Coe and multispecimen methods. Besides obtaining new data, the main goal of the study was the comparison of paleointensity results determined with two different techniques. Characteristic Remanent Magnetization (ChRM) directions were obtained in 15 flows, and 12 were chosen for paleointensity determination. In Thellier-type experiments, a selection of reliable paleointensity determinations (43 of 78 studied samples) was performed using sets of criteria of different stringency, trying to relate the quality of results to the strictness of the chosen criteria. Uncorrected and fraction and domain-state corrected multispecimen paleointensity results were obtained in all flows. Results with the Coe method on historical flows either agree with the expected values or show moderately lower ones, but multispecimen determinations display a large deviation from the expected result in one case. No relation can be detected between correct or anomalous results and paleointensity determination quality or rock-magnetic properties. However, results on historical flows suggest that agreement between both methods could be a good indicator of correct determinations. Comparison of results obtained with both methods on seven Pleistocene flows yields an excellent agreement in four and disagreements in three cases. Pleistocene determinations were only accepted if either results from both methods agreed or a result was based on a sufficiently large number (n>4) of individual Thellier-type determinations. In most Pleistocene flows, a VADM around 5 31022 Am2 was observed, although two flows displayed higher values around 931022 Am2. project CGL2012-32149 (Ministerio de Econom ıa y Competitividad, Spain), project 320/2011 (Ministerio de Medio Ambiente y Medio Rural y Marino, Spain) and the European Regional Development Fund (ERDF). application/pdf eng American Geophysical Union (AGU) Geochemistry, Geophysics, Geosystems. 2016, V. 17, n. 9, p. 3638–3654 http://dx.doi.org/10.1002/2016GC006396 Magnetism Paleontology Magnetismo Paleontología A comparison of Thellier-type and multispecimen paleointensity determinations on Pleistocene and historical lava flows from Lanzarote (Canary Islands, Spain) info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion 2016 AGU info:eu-repo/semantics/openAccess THUMBNAIL Calvo-GGG_2016.pdf.jpg Calvo-GGG_2016.pdf.jpg IM Thumbnail image/jpeg 5060 https://riubu.ubu.es/bitstream/10259/4586/4/Calvo-GGG_2016.pdf.jpg d17bfc12a05fca366e1614379a3d38d0 MD5 4 ORIGINAL Calvo-GGG_2016.pdf Calvo-GGG_2016.pdf application/pdf 1355466 https://riubu.ubu.es/bitstream/10259/4586/1/Calvo-GGG_2016.pdf 5a26009331c432178aed3418caa39df6 MD5 1 LICENSE license.txt license.txt text/plain; charset=utf-8 999 https://riubu.ubu.es/bitstream/10259/4586/2/license.txt b295bcbce42e2caabeb0c623d3860c06 MD5 2 TEXT Calvo-GGG_2016.pdf.txt Calvo-GGG_2016.pdf.txt Extracted text text/plain 74752 https://riubu.ubu.es/bitstream/10259/4586/3/Calvo-GGG_2016.pdf.txt 2b1901995338d584e5e7696cb2914f7c MD5 3 10259/4586 oai:riubu.ubu.es:10259/4586 2022-04-29 14:02:48.231 Repositorio Institucional de la Universidad de Burgos bubrep@ubu.es RWwgYXV0b3IgY29tbyDDum5pY28gdGl0dWxhciBkZSBsb3MgZGVyZWNob3MgZGUgcHJvcGllZGFkIGludGVsZWN0dWFsIGRlIGxhIG9icmEsIG8gZGlzcG9uaWVuZG8gZGUgbG9zIGRlYmlkb3MgcGVybWlzb3MgZGUgbG9zIG90cm9zIHRpdHVsYXJlcywgc2kgbG9zIGh1YmllcmEsIHkgZW4gdmlydHVkIGRlIGxvcyBkZXJlY2hvcyBxdWUgbGUgY29uZmllcmUgbGEgbGVnaXNsYWNpw7NuIHZpZ2VudGUgc29icmUgcHJvcGllZGFkIGludGVsZWN0dWFsIHkgZGVyZWNob3MgZGUgYXV0b3IsIA0KQVVUT1JJWkEgYSBsYSBVbml2ZXJzaWRhZCBkZSBCdXJnb3MgYSBkaWZ1bmRpciwgZGUgbWFuZXJhIGdyYXR1aXRhLCBlbCBjb250ZW5pZG8gZGUgbG9zIGFyY2hpdm9zIGRpZ2l0YWxlcyBxdWUgY29ycmVzcG9uZGVuIGFsIGRvY3VtZW50byBkZXNjcml0byBhbnRlcmlvcm1lbnRlLCBjb24gY2Fyw6FjdGVyIG5vIGV4Y2x1c2l2byB5IGRlIG1hbmVyYSBww7pibGljYSBlbiBhY2Nlc28gYWJpZXJ0byBhIHRyYXbDqXMgZGUgSW50ZXJuZXQsIHBhcmEgbG8gcXVlIGxhIEJpYmxpb3RlY2EgcHJvY2VkZXLDoSBhIGFyY2hpdmFybG9zIGVuIGVsIFJlcG9zaXRvcmlvIEluc3RpdHVjaW9uYWwuIEFzaW1pc21vIGF1dG9yaXphIGEgbGEgVW5pdmVyc2lkYWQgZGUgQnVyZ29zIGEgcmVhbGl6YXIgbGFzIHRyYW5zZm9ybWFjaW9uZXMgbmVjZXNhcmlhcyBkZSBmb3JtYXRvLCBubyBkZSBjb250ZW5pZG8sIHBhcmEgZ2FyYW50aXphciBsYSBwcmVzZXJ2YWNpw7NuIHkgZWwgYWNjZXNvIGVuIGVsIGZ1dHVyby4NCg0KRWwgYXV0b3IgZGlzcG9uZSwgZW4gdG9kbyBjYXNvLCBkZWwgZGVyZWNobyBhIHJldm9jYXIgZXN0YSBhdXRvcml6YWNpw7NuLg0KDQpMYSBjZXNpw7NuIGRlIGRlcmVjaG9zIGRlIGVzdGEgb2JyYSBzZSBlbmN1ZW50cmEgc3VqZXRhIGEgbGEgbGVnaXNsYWNpw7NuIHZpZ2VudGUgc29icmUgcHJvcGllZGFkIGludGVsZWN0dWFsIHkgZGVyZWNob3MgZGUgYXV0b3Iu