{"id":38691,"date":"2024-06-11T09:57:45","date_gmt":"2024-06-11T07:57:45","guid":{"rendered":"https:\/\/www.ig.cas.cz\/?p=38691"},"modified":"2024-07-17T10:12:38","modified_gmt":"2024-07-17T08:12:38","slug":"guest-lecture-2024-06-13","status":"publish","type":"post","link":"https:\/\/www.ig.cas.cz\/en\/guest-lecture-2024-06-13\/","title":{"rendered":"Guest lecture: Andrew A. Delorey &#8211; 13 June \/ 16.00"},"content":{"rendered":"<p>On Thursday, June 13, there will be a&nbsp;lecture by: <strong>Andrew A. Delorey<\/strong> (Los Alamos National Laboratory, Los Alamos, New Mexico, USA)<br \/>\nPlace: GF\u00da Lecture Hall \/ 4:00 pm<br \/>\nHost: Petr Kol\u00ednsk\u00fd (Structure of Continental Lithosphere)<\/p>\n<p><strong>Measuring the Nonlinear Elasticity of Rocks in the Earth to Reveal Fracture Density and Stress Conditions<\/strong><\/p>\n<p>Most investigations in seismology are performed with the assumption that rocks in the subsurface behave with linear elasticity and fast dynamics, and this is usually a&nbsp;good approximation. In laboratory rock samples it is well-known and commonly observed that the elasticity of rocks is highly nonlinear and exhibits slow dynamics (finite relaxation times). Laboratory rock samples exhibit behaviors such as hysteresis and conditioning that violate the assumptions of linear elasticity and fast dynamics. These behaviors reveal interesting and important properties of rocks, such as fracture density, permeability, and stress orientation, which have many real-world applications. To observe these behaviors, the elasticity of rocks must be observed at different strains. Fortunately, the Earth experiences natural strain cycles such as those associated with lunar and solar tides, variations in atmospheric loading, and variations in water loading. By measuring small temporal changes in seismic velocities associated with these strain cycles, we can at least partially construct the strain-modulus relationship. In conjunction with laboratory experiments, we can interpret the strain-modulus relationship in terms of important geophysical properties both in reservoir and active tectonic settings. Traditional, strain-averaged measurements would be a&nbsp;single point if shown on the axes in the laboratory and Earth examples shown below.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-38692 size-full\" src=\"https:\/\/www.ig.cas.cz\/wp-content\/uploads\/2024\/06\/2024-06-13-kolinsky-01.png\" alt=\"\" width=\"1009\" height=\"712\" srcset=\"https:\/\/www.ig.cas.cz\/wp-content\/uploads\/2024\/06\/2024-06-13-kolinsky-01.png 1009w, https:\/\/www.ig.cas.cz\/wp-content\/uploads\/2024\/06\/2024-06-13-kolinsky-01-980x692.png 980w, https:\/\/www.ig.cas.cz\/wp-content\/uploads\/2024\/06\/2024-06-13-kolinsky-01-480x339.png 480w\" sizes=\"(min-width: 0px) and (max-width: 480px) 480px, (min-width: 481px) and (max-width: 980px) 980px, (min-width: 981px) 1009px, 100vw\" \/><\/p>\n<p><em>Delorey, A. A., R. A. Guyer, G. H. R. Bokelmann, and P.&nbsp;A. Johnson, 2021, Probing the Damage Zone at Parkfield, Geophys Res Lett, 48, no. 13, doi: 10.1029\/2021GL093518.<\/em><\/p>\n","protected":false},"excerpt":{"rendered":"<p>On Thursday, June 13, there will be a&nbsp;lecture by: Andrew A. Delorey (Los Alamos National Laboratory, Los Alamos, New Mexico, USA) Place: GF\u00da Lecture Hall \/ 4:00 pm&nbsp;Host: Petr Kol\u00ednsk\u00fd (Structure of Continental Lithosphere) Measuring the Nonlinear Elasticity of Rocks in the Earth to Reveal Fracture Density and Stress Conditions Most investigations in seismology [&hellip;]<\/p>\n","protected":false},"author":28,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_et_pb_use_builder":"","_et_pb_old_content":"","_et_gb_content_width":"","footnotes":""},"categories":[124],"tags":[],"class_list":["post-38691","post","type-post","status-publish","format-standard","hentry","category-lectures-eng"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v25.9 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Guest lecture: Andrew A. Delorey - 13 June \/ 16.00 - Geofyzik\u00e1ln\u00ed \u00fastav Akademie v\u011bd \u010cR, v.v.i.<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.ig.cas.cz\/en\/guest-lecture-2024-06-13\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Guest lecture: Andrew A. Delorey - 13 June \/ 16.00 - Geofyzik\u00e1ln\u00ed \u00fastav Akademie v\u011bd \u010cR, v.v.i.\" \/>\n<meta property=\"og:description\" content=\"On Thursday, June 13, there will be a&nbsp;lecture by: Andrew A. Delorey (Los Alamos National Laboratory, Los Alamos, New Mexico, USA) Place: GF\u00da Lecture Hall \/ 4:00 pm Host: Petr Kol\u00ednsk\u00fd (Structure of Continental Lithosphere) Measuring the Nonlinear Elasticity of Rocks in the Earth to Reveal Fracture Density and Stress Conditions Most investigations in seismology [&hellip;]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.ig.cas.cz\/en\/guest-lecture-2024-06-13\/\" \/>\n<meta property=\"og:site_name\" content=\"Dom\u016f\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/GFUAVCR\/\" \/>\n<meta property=\"article:published_time\" content=\"2024-06-11T07:57:45+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2024-07-17T08:12:38+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.ig.cas.cz\/wp-content\/uploads\/2024\/06\/2024-06-13-kolinsky-01.png\" \/>\n<meta name=\"author\" content=\"Katerina Voracova\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Katerina Voracova\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"2 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.ig.cas.cz\/en\/guest-lecture-2024-06-13\/\",\"url\":\"https:\/\/www.ig.cas.cz\/en\/guest-lecture-2024-06-13\/\",\"name\":\"Guest lecture: Andrew A. Delorey - 13 June \/ 16.00 - Geofyzik\u00e1ln\u00ed \u00fastav Akademie v\u011bd \u010cR, v.v.i.\",\"isPartOf\":{\"@id\":\"https:\/\/www.ig.cas.cz\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\/\/www.ig.cas.cz\/en\/guest-lecture-2024-06-13\/#primaryimage\"},\"image\":{\"@id\":\"https:\/\/www.ig.cas.cz\/en\/guest-lecture-2024-06-13\/#primaryimage\"},\"thumbnailUrl\":\"https:\/\/www.ig.cas.cz\/wp-content\/uploads\/2024\/06\/2024-06-13-kolinsky-01.png\",\"datePublished\":\"2024-06-11T07:57:45+00:00\",\"dateModified\":\"2024-07-17T08:12:38+00:00\",\"author\":{\"@id\":\"https:\/\/www.ig.cas.cz\/#\/schema\/person\/35ac166fad12e1b9438323cf7d1403e5\"},\"breadcrumb\":{\"@id\":\"https:\/\/www.ig.cas.cz\/en\/guest-lecture-2024-06-13\/#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/www.ig.cas.cz\/en\/guest-lecture-2024-06-13\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\/\/www.ig.cas.cz\/en\/guest-lecture-2024-06-13\/#primaryimage\",\"url\":\"https:\/\/www.ig.cas.cz\/wp-content\/uploads\/2024\/06\/2024-06-13-kolinsky-01.png\",\"contentUrl\":\"https:\/\/www.ig.cas.cz\/wp-content\/uploads\/2024\/06\/2024-06-13-kolinsky-01.png\"},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/www.ig.cas.cz\/en\/guest-lecture-2024-06-13\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Dom\u016f\",\"item\":\"https:\/\/www.ig.cas.cz\/en\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Guest lecture: Andrew A. Delorey &#8211; 13 June \/ 16.00\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/www.ig.cas.cz\/#website\",\"url\":\"https:\/\/www.ig.cas.cz\/\",\"name\":\"Dom\u016f\",\"description\":\"Geofyzik\u00e1ln\u00ed \u00fastav Akademie v\u011bd \u010cR, v.v.i.\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/www.ig.cas.cz\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"en-US\"},{\"@type\":\"Person\",\"@id\":\"https:\/\/www.ig.cas.cz\/#\/schema\/person\/35ac166fad12e1b9438323cf7d1403e5\",\"name\":\"Katerina Voracova\",\"url\":\"https:\/\/www.ig.cas.cz\/en\/author\/voracova\/\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"Guest lecture: Andrew A. Delorey - 13 June \/ 16.00 - Geofyzik\u00e1ln\u00ed \u00fastav Akademie v\u011bd \u010cR, v.v.i.","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/www.ig.cas.cz\/en\/guest-lecture-2024-06-13\/","og_locale":"en_US","og_type":"article","og_title":"Guest lecture: Andrew A. Delorey - 13 June \/ 16.00 - Geofyzik\u00e1ln\u00ed \u00fastav Akademie v\u011bd \u010cR, v.v.i.","og_description":"On Thursday, June 13, there will be a&nbsp;lecture by: Andrew A. Delorey (Los Alamos National Laboratory, Los Alamos, New Mexico, USA) Place: GF\u00da Lecture Hall \/ 4:00 pm Host: Petr Kol\u00ednsk\u00fd (Structure of Continental Lithosphere) Measuring the Nonlinear Elasticity of Rocks in the Earth to Reveal Fracture Density and Stress Conditions Most investigations in seismology [&hellip;]","og_url":"https:\/\/www.ig.cas.cz\/en\/guest-lecture-2024-06-13\/","og_site_name":"Dom\u016f","article_publisher":"https:\/\/www.facebook.com\/GFUAVCR\/","article_published_time":"2024-06-11T07:57:45+00:00","article_modified_time":"2024-07-17T08:12:38+00:00","og_image":[{"url":"https:\/\/www.ig.cas.cz\/wp-content\/uploads\/2024\/06\/2024-06-13-kolinsky-01.png","type":"","width":"","height":""}],"author":"Katerina Voracova","twitter_card":"summary_large_image","twitter_misc":{"Written by":"Katerina Voracova","Est. reading time":"2 minutes"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/www.ig.cas.cz\/en\/guest-lecture-2024-06-13\/","url":"https:\/\/www.ig.cas.cz\/en\/guest-lecture-2024-06-13\/","name":"Guest lecture: Andrew A. Delorey - 13 June \/ 16.00 - Geofyzik\u00e1ln\u00ed \u00fastav Akademie v\u011bd \u010cR, v.v.i.","isPartOf":{"@id":"https:\/\/www.ig.cas.cz\/#website"},"primaryImageOfPage":{"@id":"https:\/\/www.ig.cas.cz\/en\/guest-lecture-2024-06-13\/#primaryimage"},"image":{"@id":"https:\/\/www.ig.cas.cz\/en\/guest-lecture-2024-06-13\/#primaryimage"},"thumbnailUrl":"https:\/\/www.ig.cas.cz\/wp-content\/uploads\/2024\/06\/2024-06-13-kolinsky-01.png","datePublished":"2024-06-11T07:57:45+00:00","dateModified":"2024-07-17T08:12:38+00:00","author":{"@id":"https:\/\/www.ig.cas.cz\/#\/schema\/person\/35ac166fad12e1b9438323cf7d1403e5"},"breadcrumb":{"@id":"https:\/\/www.ig.cas.cz\/en\/guest-lecture-2024-06-13\/#breadcrumb"},"inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["https:\/\/www.ig.cas.cz\/en\/guest-lecture-2024-06-13\/"]}]},{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/www.ig.cas.cz\/en\/guest-lecture-2024-06-13\/#primaryimage","url":"https:\/\/www.ig.cas.cz\/wp-content\/uploads\/2024\/06\/2024-06-13-kolinsky-01.png","contentUrl":"https:\/\/www.ig.cas.cz\/wp-content\/uploads\/2024\/06\/2024-06-13-kolinsky-01.png"},{"@type":"BreadcrumbList","@id":"https:\/\/www.ig.cas.cz\/en\/guest-lecture-2024-06-13\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Dom\u016f","item":"https:\/\/www.ig.cas.cz\/en\/"},{"@type":"ListItem","position":2,"name":"Guest lecture: Andrew A. Delorey &#8211; 13 June \/ 16.00"}]},{"@type":"WebSite","@id":"https:\/\/www.ig.cas.cz\/#website","url":"https:\/\/www.ig.cas.cz\/","name":"Dom\u016f","description":"Geofyzik\u00e1ln\u00ed \u00fastav Akademie v\u011bd \u010cR, v.v.i.","potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/www.ig.cas.cz\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"en-US"},{"@type":"Person","@id":"https:\/\/www.ig.cas.cz\/#\/schema\/person\/35ac166fad12e1b9438323cf7d1403e5","name":"Katerina Voracova","url":"https:\/\/www.ig.cas.cz\/en\/author\/voracova\/"}]}},"_links":{"self":[{"href":"https:\/\/www.ig.cas.cz\/en\/wp-json\/wp\/v2\/posts\/38691","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.ig.cas.cz\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.ig.cas.cz\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.ig.cas.cz\/en\/wp-json\/wp\/v2\/users\/28"}],"replies":[{"embeddable":true,"href":"https:\/\/www.ig.cas.cz\/en\/wp-json\/wp\/v2\/comments?post=38691"}],"version-history":[{"count":2,"href":"https:\/\/www.ig.cas.cz\/en\/wp-json\/wp\/v2\/posts\/38691\/revisions"}],"predecessor-version":[{"id":38695,"href":"https:\/\/www.ig.cas.cz\/en\/wp-json\/wp\/v2\/posts\/38691\/revisions\/38695"}],"wp:attachment":[{"href":"https:\/\/www.ig.cas.cz\/en\/wp-json\/wp\/v2\/media?parent=38691"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.ig.cas.cz\/en\/wp-json\/wp\/v2\/categories?post=38691"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.ig.cas.cz\/en\/wp-json\/wp\/v2\/tags?post=38691"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}