{"id":198,"date":"2018-09-26T13:17:13","date_gmt":"2018-09-26T11:17:13","guid":{"rendered":"http:\/\/demo.athemes.com\/atu-agency\/?page_id=198"},"modified":"2020-05-05T13:41:31","modified_gmt":"2020-05-05T11:41:31","slug":"our-research","status":"publish","type":"page","link":"https:\/\/thegateproject.cerege.fr\/?page_id=198","title":{"rendered":"Research"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-page\" data-elementor-id=\"198\" class=\"elementor elementor-198\">\n\t\t\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-aa73062 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"aa73062\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-75a46878\" data-id=\"75a46878\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-50a4b9bc elementor-widget elementor-widget-heading\" data-id=\"50a4b9bc\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h2 class=\"elementor-heading-title elementor-size-large\">Members<\/h2>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-2fa9bae elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"2fa9bae\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-45ed008\" data-id=\"45ed008\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-b12e3c8 elementor-widget elementor-widget-spacer\" data-id=\"b12e3c8\" data-element_type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-9127683 elementor-invisible elementor-widget elementor-widget-heading\" data-id=\"9127683\" data-element_type=\"widget\" data-settings=\"{&quot;_animation&quot;:&quot;fadeIn&quot;}\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Breakthroughs in Quaternary Geochronology to fill in a key gap of knowledge in Active Tectonics<\/h2>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-1fa02d5 elementor-widget elementor-widget-spacer\" data-id=\"1fa02d5\" data-element_type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-cce22f2 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"cce22f2\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-33 elementor-top-column elementor-element elementor-element-25ec709\" data-id=\"25ec709\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-ca281d8 elementor-widget elementor-widget-counter\" data-id=\"ca281d8\" data-element_type=\"widget\" data-widget_type=\"counter.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<div class=\"elementor-counter\">\n\t\t\t<div class=\"elementor-counter-title\">involved researchers<\/div>\t\t\t<div class=\"elementor-counter-number-wrapper\">\n\t\t\t\t<span class=\"elementor-counter-number-prefix\"><\/span>\n\t\t\t\t<span class=\"elementor-counter-number\" data-duration=\"1000\" data-to-value=\"11\" data-from-value=\"0\" data-delimiter=\",\">0<\/span>\n\t\t\t\t<span class=\"elementor-counter-number-suffix\"><\/span>\n\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-33 elementor-top-column elementor-element elementor-element-162d7af\" data-id=\"162d7af\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-b67169f elementor-widget elementor-widget-counter\" data-id=\"b67169f\" data-element_type=\"widget\" data-widget_type=\"counter.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<div class=\"elementor-counter\">\n\t\t\t<div class=\"elementor-counter-title\">years project<\/div>\t\t\t<div class=\"elementor-counter-number-wrapper\">\n\t\t\t\t<span class=\"elementor-counter-number-prefix\"><\/span>\n\t\t\t\t<span class=\"elementor-counter-number\" data-duration=\"500\" data-to-value=\"3\" data-from-value=\"0\" data-delimiter=\",\">0<\/span>\n\t\t\t\t<span class=\"elementor-counter-number-suffix\"><\/span>\n\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-33 elementor-top-column elementor-element elementor-element-4b43e1f\" data-id=\"4b43e1f\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-0d2e0c0 elementor-widget elementor-widget-counter\" data-id=\"0d2e0c0\" data-element_type=\"widget\" data-widget_type=\"counter.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<div class=\"elementor-counter\">\n\t\t\t<div class=\"elementor-counter-title\">samples collected<\/div>\t\t\t<div class=\"elementor-counter-number-wrapper\">\n\t\t\t\t<span class=\"elementor-counter-number-prefix\">+<\/span>\n\t\t\t\t<span class=\"elementor-counter-number\" data-duration=\"2000\" data-to-value=\"55\" data-from-value=\"0\" data-delimiter=\",\">0<\/span>\n\t\t\t\t<span class=\"elementor-counter-number-suffix\"><\/span>\n\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-c38a9e8 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"c38a9e8\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-top-column elementor-element elementor-element-c6fbff2\" data-id=\"c6fbff2\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-c82add9 elementor-widget elementor-widget-heading\" data-id=\"c82add9\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Overview<\/h2>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-208e775 elementor-widget elementor-widget-text-editor\" data-id=\"208e775\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p>The determination of fault slip-rate relies on quantitative characterization of late-Quaternary (1-500 ka) deformation with accurate dating of geomorphological surfaces affected by the fault motion over multiple earthquake cycles. However, large epistemic uncertainties in dating alluvial surfaces with Optically Stimulated Luminescence (OSL) and Terrestrial Cosmogenic Nuclides (TCN) methods severely limit discussions and preclude our ability to understand behavior of active faults.<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-top-column elementor-element elementor-element-ca76554\" data-id=\"ca76554\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-b013172 elementor-widget elementor-widget-image\" data-id=\"b013172\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t<img fetchpriority=\"high\" decoding=\"async\" width=\"1024\" height=\"798\" src=\"https:\/\/thegateproject.cerege.fr\/wp-content\/uploads\/2019\/11\/djim-loic-ft0-Xu4nTvA-unsplash-1024x798.jpg\" class=\"attachment-large size-large wp-image-355\" alt=\"\" srcset=\"https:\/\/thegateproject.cerege.fr\/wp-content\/uploads\/2019\/11\/djim-loic-ft0-Xu4nTvA-unsplash-1024x798.jpg 1024w, https:\/\/thegateproject.cerege.fr\/wp-content\/uploads\/2019\/11\/djim-loic-ft0-Xu4nTvA-unsplash-300x234.jpg 300w, https:\/\/thegateproject.cerege.fr\/wp-content\/uploads\/2019\/11\/djim-loic-ft0-Xu4nTvA-unsplash-768x599.jpg 768w, https:\/\/thegateproject.cerege.fr\/wp-content\/uploads\/2019\/11\/djim-loic-ft0-Xu4nTvA-unsplash-720x561.jpg 720w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-4fef2b9 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"4fef2b9\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-dff5d26\" data-id=\"dff5d26\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-0240c3e elementor-widget elementor-widget-text-editor\" data-id=\"0240c3e\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p>In this project, we are developing complementary approaches to accurately date late-Quaternary morphological surfaces through an exhaustive, detailed and unique direct comparison of both dating methods, a strategy that would then leads to major improvements in our understanding of the respective physical processes associated to these dating methods. \u201cscientificOrganization.png\u201d summarize the scientific organization of the project.<\/p><p>To better understand the systematics of these dating methods, we are combining both OSL and TCN dating methods on the same geomorphic markers with a high-resolution sampling. This approach has the potential to provide new important insights into the processes affecting alluvial landforms in different climatic setting. We aim to produce major advances in constraining sources for the natural variability of the OSL signal for a better understanding of luminescence characteristics from sediment populations with different light-exposure histories.<\/p><p>We are focusing on two challenging study cases where slip rates of active faults are still in debate due to epistemic uncertainties in dating alluvial surfaces. The results of this pioneering project are offering new perspectives for the large scientific community involved in active tectonics. At the national scale, there is no laboratory providing the possibility to apply both dating methods, and the French Earth Sciences community warrants an improvement and thorough understanding of OSL dating methods. Even at the international scale, only a few institutions host and master both OSL and TCN techniques and CEREGE is a unique opportunity in Quaternary geochronology.<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-0302e8e elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"0302e8e\" data-element_type=\"section\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-551c4c0\" data-id=\"551c4c0\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-b73b6b8 elementor-widget elementor-widget-heading\" data-id=\"b73b6b8\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Context<\/h2>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-91bce1d elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"91bce1d\" data-element_type=\"section\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-196b958\" data-id=\"196b958\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-4ece6d2 elementor-tabs-view-horizontal elementor-widget elementor-widget-tabs\" data-id=\"4ece6d2\" data-element_type=\"widget\" data-widget_type=\"tabs.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<div class=\"elementor-tabs\">\n\t\t\t<div class=\"elementor-tabs-wrapper\" role=\"tablist\" >\n\t\t\t\t\t\t\t\t\t<div id=\"elementor-tab-title-8261\" class=\"elementor-tab-title elementor-tab-desktop-title\" aria-selected=\"true\" data-tab=\"1\" role=\"tab\" tabindex=\"0\" aria-controls=\"elementor-tab-content-8261\" aria-expanded=\"false\">1<\/div>\n\t\t\t\t\t\t\t\t\t<div id=\"elementor-tab-title-8262\" class=\"elementor-tab-title elementor-tab-desktop-title\" aria-selected=\"false\" data-tab=\"2\" role=\"tab\" tabindex=\"-1\" aria-controls=\"elementor-tab-content-8262\" aria-expanded=\"false\">2<\/div>\n\t\t\t\t\t\t\t\t\t<div id=\"elementor-tab-title-8263\" class=\"elementor-tab-title elementor-tab-desktop-title\" aria-selected=\"false\" data-tab=\"3\" role=\"tab\" tabindex=\"-1\" aria-controls=\"elementor-tab-content-8263\" aria-expanded=\"false\">3<\/div>\n\t\t\t\t\t\t\t\t\t<div id=\"elementor-tab-title-8264\" class=\"elementor-tab-title elementor-tab-desktop-title\" aria-selected=\"false\" data-tab=\"4\" role=\"tab\" tabindex=\"-1\" aria-controls=\"elementor-tab-content-8264\" aria-expanded=\"false\">4<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t\t<div class=\"elementor-tabs-content-wrapper\" role=\"tablist\" aria-orientation=\"vertical\">\n\t\t\t\t\t\t\t\t\t<div class=\"elementor-tab-title elementor-tab-mobile-title\" aria-selected=\"true\" data-tab=\"1\" role=\"tab\" tabindex=\"0\" aria-controls=\"elementor-tab-content-8261\" aria-expanded=\"false\">1<\/div>\n\t\t\t\t\t<div id=\"elementor-tab-content-8261\" class=\"elementor-tab-content elementor-clearfix\" data-tab=\"1\" role=\"tabpanel\" aria-labelledby=\"elementor-tab-title-8261\" tabindex=\"0\" hidden=\"false\"><p>More than 60% of the world\u2019s population live in areas where destructive earthquakes were recorded in the past. However, seismic hazard assessment remains highly problematic mainly related to the difficulties in accurately anticipating expected earthquakes magnitude and their recurrence times, these parameters being controlled primarily by the fault type and the slip rates. In active tectonics, geological slip rates are estimated using the ratio between the cumulative displacement of a geomorphic marker along the fault trace and its relative age. Accurate and precise age estimates are critical to reveal intriguing temporal patterns in fault slip over timescales ranging from 103\u2013105 yr as it is done on some well-studied active faults (San Andreas Fault, North Anatolian Fault, Dead Sea Fault, Altyn Tagh Fault). Since the 80s, the quantification of slip rates has become more and more efficient. In one hand, thanks to the ever-improving resolution of satellites images (<1m), geologists identify with more accuracy the surface traces of active faults, displaced landforms and even past earthquake surface ruptures. Using the potential of remote sensing and digital elevation models, they produce detailed 3D reconstructions of fault morphology and geometric patterns.<\/p><\/div>\n\t\t\t\t\t\t\t\t\t<div class=\"elementor-tab-title elementor-tab-mobile-title\" aria-selected=\"false\" data-tab=\"2\" role=\"tab\" tabindex=\"-1\" aria-controls=\"elementor-tab-content-8262\" aria-expanded=\"false\">2<\/div>\n\t\t\t\t\t<div id=\"elementor-tab-content-8262\" class=\"elementor-tab-content elementor-clearfix\" data-tab=\"2\" role=\"tabpanel\" aria-labelledby=\"elementor-tab-title-8262\" tabindex=\"0\" hidden=\"hidden\"><p>In another hand, the applications of Quaternary dating methods have revolutionized the fields of tectonics and geomorphology. In Quaternary geochronology, the Terrestrial Cosmogenic Nuclides (TCN) and Optically Stimulated Luminescence (OSL) dating methods are geochronological tools available up to now to date deposits on timescales ranging from several tens of years to 500,000 years. Developed over the last few decades, they have been extensively applied to date and quantify various processes in an extremely wide range of environmental settings. Their exponentially increasing use is explained by the fact that they fill the temporal gap between the previously existing dating methods suitable for studying either short-term (i.e 1- 100 years) or long-term geological and environmental processes (i.e. 1 Ma \u2013 1 Ga). Both methods are applied to date the emplacement of geomorphic markers but focus on different geomorphic processes. While the TCN method generally dates the exposure duration of the rock surface to cosmic rays [e.g. Gosse and Philipps, 2001], the OSL method provides burial duration of the sediment after deposition [e.g. Wallinga, 2002]. These two dating methods are now widely used in numerous studies to date the emplacement of alluvial fans, terraces and other morphological markers. However, despite the large number of scientific works devoted to the dating of geomorphic surfaces, many difficulties and debates remain. Large epistemic uncertainties in dating alluvial surfaces can severely limit discussions and preclude our ability to understand behavior of active faults in regard of the seismic cycle. \u201ccompOslTcn.png\u201d summarize the current debate.<\/p><\/div>\n\t\t\t\t\t\t\t\t\t<div class=\"elementor-tab-title elementor-tab-mobile-title\" aria-selected=\"false\" data-tab=\"3\" role=\"tab\" tabindex=\"-1\" aria-controls=\"elementor-tab-content-8263\" aria-expanded=\"false\">3<\/div>\n\t\t\t\t\t<div id=\"elementor-tab-content-8263\" class=\"elementor-tab-content elementor-clearfix\" data-tab=\"3\" role=\"tabpanel\" aria-labelledby=\"elementor-tab-title-8263\" tabindex=\"0\" hidden=\"hidden\"><p>The image shown bellow presents such discrepancies found in recently published studies that combined both TCN and OSL dating to estimate the ages of alluvial surfaces in different climatic settings, with disparities up to 10- 100 ka between the two methods [Delong et Arnold., 2007; Nissen et al., 2009; Le Dortz et al., 2009, 2011; Owen et al., 2011; Viveen et al., 2012]. It is important to point out that OSL ages in most of these studies are often younger than TCN exposure ages. This is clearly evidenced when morphological surfaces are older than 50 ka. These critical observations question the reliability of the TCN and OSL dating techniques, although both are already used as routine methods. This is becoming even more critical considering that in many research papers, the authors, recognizing the difficulty to reconcile the ages derived from the two dating methods, often choose the deposition ages that seem the most reliable taking into account the local paleoclimatic reconstructions, but without independent age control to validate their assumptions.<br \/><br \/><\/p><\/div>\n\t\t\t\t\t\t\t\t\t<div class=\"elementor-tab-title elementor-tab-mobile-title\" aria-selected=\"false\" data-tab=\"4\" role=\"tab\" tabindex=\"-1\" aria-controls=\"elementor-tab-content-8264\" aria-expanded=\"false\">4<\/div>\n\t\t\t\t\t<div id=\"elementor-tab-content-8264\" class=\"elementor-tab-content elementor-clearfix\" data-tab=\"4\" role=\"tabpanel\" aria-labelledby=\"elementor-tab-title-8264\" tabindex=\"0\" hidden=\"hidden\"><p>A large source of uncertainty when applying TCN or OSL methods relates to the erosion-transport- deposition processes experienced by the sediment prior its final deposition. Owing to the nature of fluvial transport, it is well-known that pebbles and grains have followed during transport separate paths within the column water and thus have experienced different histories of exposure to sunlight\/cosmic rays that will directly influence the latent OSL\/TCN recorded signal.<br \/>In this project, we propose to empirically investigate physical and geomorphic processes influencing the acquisition, the restitution and the sensitivity of the TCN and OSL signals, through an exhaustive, detailed and direct comparison of both methods applied on typical alluvial deposits used for slip rate estimates at two key neotectonic sites. This proposed novel approach will necessarily refine the sampling strategies and therefore the determined ages used to constrain the spatial and temporal activity of active faults across the world. This project thus raises fundamental scientific questions with outcomes that will have direct and strong societal implications, in particular in our ability to better assess natural hazards.<\/p><\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-ed920de elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"ed920de\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-88932ea\" data-id=\"88932ea\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-cf40b12 elementor-widget elementor-widget-image\" data-id=\"cf40b12\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t<figure class=\"wp-caption\">\n\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" width=\"975\" height=\"922\" src=\"https:\/\/thegateproject.cerege.fr\/wp-content\/uploads\/2019\/11\/compOslTcn.png\" class=\"attachment-large size-large wp-image-359\" alt=\"\" srcset=\"https:\/\/thegateproject.cerege.fr\/wp-content\/uploads\/2019\/11\/compOslTcn.png 975w, https:\/\/thegateproject.cerege.fr\/wp-content\/uploads\/2019\/11\/compOslTcn-300x284.png 300w, https:\/\/thegateproject.cerege.fr\/wp-content\/uploads\/2019\/11\/compOslTcn-768x726.png 768w, https:\/\/thegateproject.cerege.fr\/wp-content\/uploads\/2019\/11\/compOslTcn-720x681.png 720w\" sizes=\"(max-width: 975px) 100vw, 975px\" \/>\t\t\t\t\t\t\t\t\t\t\t<figcaption class=\"widget-image-caption wp-caption-text\">Comparison of quartz OSL ages with cosmogenic 10Be ages and their associated uncertainties (compilation made from data available in Owen et al., 2011; Nissen et al., 2009; Le Dortz et al., 2009, 2011; Viveen et al., 2012; Rizza et al., 2011: Delong et Arnold, 2007; Pederson et al., 2006; Armonstrong et al., 2010). The black dashed line is for a ratio 1:1, the green area is for 10Be age overestimates and the yellow area for OSL age overestimates.<\/figcaption>\n\t\t\t\t\t\t\t\t\t\t<\/figure>\n\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>Members Breakthroughs in Quaternary Geochronology to fill in a key gap of knowledge in Active Tectonics 0 involved researchers 0 [&hellip;]<\/p>\n","protected":false},"author":3,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"page-templates\/template_page-builder.php","meta":{"footnotes":""},"class_list":["post-198","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/thegateproject.cerege.fr\/index.php?rest_route=\/wp\/v2\/pages\/198","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/thegateproject.cerege.fr\/index.php?rest_route=\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/thegateproject.cerege.fr\/index.php?rest_route=\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/thegateproject.cerege.fr\/index.php?rest_route=\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/thegateproject.cerege.fr\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=198"}],"version-history":[{"count":30,"href":"https:\/\/thegateproject.cerege.fr\/index.php?rest_route=\/wp\/v2\/pages\/198\/revisions"}],"predecessor-version":[{"id":403,"href":"https:\/\/thegateproject.cerege.fr\/index.php?rest_route=\/wp\/v2\/pages\/198\/revisions\/403"}],"wp:attachment":[{"href":"https:\/\/thegateproject.cerege.fr\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=198"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}