{"id":5035,"date":"2025-04-17T14:19:17","date_gmt":"2025-04-17T21:19:17","guid":{"rendered":"https:\/\/dornsife.usc.edu\/earth\/?p=5035"},"modified":"2025-05-08T12:25:07","modified_gmt":"2025-05-08T19:25:07","slug":"weekend-field-trip-to-the-mojave-desert","status":"publish","type":"post","link":"https:\/\/dornsife.usc.edu\/earth\/2025\/04\/17\/weekend-field-trip-to-the-mojave-desert\/","title":{"rendered":"Weekend field trip to the Mojave Desert"},"content":{"rendered":"\n\n\n\n\n  \n    \n\n\n\n\n\n\n<div\n  class=\"cc--component-container cc--article-hero \"\n\n  \n  \n  \n  \n  \n  \n  >\n  <div class=\"c--component c--article-hero\"\n    \n      >\n\n    \n<div class=\"inner-wrapper\">\n          \n<div class=\"f--field f--image\">\n\n    \n    \n    \n    \n    \n    \n              \n      <img\n                            data-src=\"https:\/\/dornsife.usc.edu\/earth\/wp-content\/uploads\/sites\/76\/2025\/04\/IMG_4893-scaled-e1745333790902-768x432.jpg\"\n          data-srcset=\"https:\/\/dornsife.usc.edu\/earth\/wp-content\/uploads\/sites\/76\/2025\/04\/IMG_4893-scaled-e1745333790902-1920x1080.jpg 1920w,https:\/\/dornsife.usc.edu\/earth\/wp-content\/uploads\/sites\/76\/2025\/04\/IMG_4893-scaled-e1745333790902-1280x720.jpg 1280w,https:\/\/dornsife.usc.edu\/earth\/wp-content\/uploads\/sites\/76\/2025\/04\/IMG_4893-scaled-e1745333790902-768x432.jpg 768w\"          data-sizes=\"(min-width:1200px) 75vw, (min-width:768px) 83vw, 100vw\"          class=\"lazyload\"\n        \n                  alt=\"Group shot from the top of Amboy Crater overlooking the volcanic field\"\n        \n        \n                                      \/>\n\n    \n    \n  \n  \n\n<\/div>\n  \n      <div class=\"image-caption\">\n          \n<div class=\"f--field f--description\">\n\n    \n  Petrologic Systems weekend field trip to the Mojave Desert\n\n\n<\/div>\n    <\/div>\n  \n  <div class=\"text-wrapper\">\n    \n              \n<div class=\"f--field f--page-title\">\n\n    \n  <h1>Weekend field trip to the Mojave Desert<\/h1>\n\n\n<\/div>\n    \n          <div class=\"subtitle\">\n            \n<div class=\"f--field f--description\">\n\n    \n  Professor Noah Phillips takes students on a weekend excursion for GEOL 316\n\n\n<\/div>\n      <\/div>\n    \n          <strong class=\"author-field\"><span >By<\/span>Department of Earth Sciences <\/strong>\n    \n          <span class=\"post-date-field\">April 17, 2025<\/span>\n      <\/div>\n<\/div>\n\n\n  <\/div><\/div>\n\n  \n    \n\n\n\n\n\n\n<div\n  class=\"cc--component-container cc--social-share \"\n\n  \n  \n  \n  \n  \n  \n  >\n  <div class=\"c--component c--social-share\"\n    \n      >\n\n    \n  <div class=\"content-wrapper\">\n    <span class=\"a2a_kit a2a_kit_size_32 addtoany_list\" style=\"line-height: 32px;\">\n      <span class=\"title\">\n        Share\n      <\/span>\n                        <a class=\"a2a_button_copy_link\" target=\"_blank\" href=\"\/#copy_link\" rel=\"nofollow noopener\" 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       <a class=\"a2a_button_email\" target=\"_blank\" href=\"\/#email\" rel=\"nofollow noopener\" title=\"E-mail\">\n            <span class=\"a2a_svg a2a_s__default a2a_s_print\">\n              <svg height=\"12\" viewBox=\"0 0 18 12\" width=\"18\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"m8.14285714 9.42857143c-.17142857 0-.34285714 0-.51428571.08571428l7.28571427 6.34285719c.3428572.2571428.6857143.2571428.9428572 0l7.2857142-6.34285719c-.0857142-.08571428-.2571428-.08571428-.4285714-.08571428zm-1.28571428 1.11428567v.1714286 8.5714286c0 .6857143.6 1.2857143 1.28571428 1.2857143h14.57142856c.6857143 0 1.2857143-.6 1.2857143-1.2857143v-8.5714286c0-.0857143 0-.0857143 0-.1714286l-7.2 6.3428572c-.7714286.6857143-1.8857143.6857143-2.6571429 0z\" fill-rule=\"evenodd\" transform=\"translate(-6 -9)\"\/><\/svg>\n            <\/span>\n            <span class=\"a2a_label visually-hidden\">Email<\/span>\n          <\/a>\n                  <\/span>\n  <\/div>\n\n  <\/div><\/div>\n \n\n\n\n  \n    \n\n\n\n\n\n\n<div\n  class=\"cc--component-container cc--rich-text \"\n\n  \n  \n  \n  \n  \n  \n  >\n  <div class=\"c--component c--rich-text\"\n    \n      >\n\n    \n      \n<div class=\"f--field f--wysiwyg\">\n\n    \n  <p>The students of GEOL 316 embarked on a weekend excursion to study ancient and recent volcanism in the Mojave desert. Students were able to examine rocks produced from relatively non-explosive, lava dominated eruptions from basaltic cinder cones which occurred thousands of years ago. Climbing the margins of the volcanoes to examine the scoria (bits of lava which crystallized in the air after being thrown from the volcano) and spatter deposits (bits of lava which were thrown from the volcano and still molten when they hit the ground) also gave great views over the Mojave desert.<\/p>\n<p>These relatively non-explosive volcanoes stood in stark contrast to the large deposits of volcanic ash (ignimbrite) found in the vicinity of Hole-in-the-Wall campground in Mojave National Preserve. These deposits formed from large, explosive eruptions, followed by collapse of the ash cloud to create large, devastating, fast moving ash and gas flows known as pyroclastic density currents, which are one of the main volcanic hazards for society. In addition to seeing evidence for past devastating eruptions, students were able to examine ancient plumbing systems for explosive volcanoes in the form of the rock type granite.<\/p>\n<p><a href=\"https:\/\/dornsife.usc.edu\/earth\/undergraduate\/admissions\/\" target=\"_blank\" rel=\"noopener\">Join the Earth Sciences department<\/a> today to learn more about the dynamic processes which shape our planet!<\/p>\n\n\n\n<\/div>\n\n\n  <\/div><\/div>\n\n\n\n\n\n                    \n  \n    \n\n\n\n\n\n\n<div\n  class=\"cc--component-container cc--image-gallery \"\n\n  \n  \n  \n  \n  \n  \n  >\n  <div class=\"c--component c--image-gallery\"\n    \n      >\n\n    \n  <div class=\"inner-wrapper\">\n\n    \n      <div id=\"gallery-1978561136\" class=\"gallery-container\">\n\n      <div class=\"swiper images\">\n        <div class=\"swiper-wrapper\">\n                                    <div class=\"swiper-slide\">\n                                      \n<div class=\"f--field f--image\">\n\n    \n    \n    \n    \n    \n    \n              \n      <img\n                            data-src=\"https:\/\/dornsife.usc.edu\/earth\/wp-content\/uploads\/sites\/76\/2025\/04\/DSC_0603-scaled-e1744925110486-768x432.jpg\"\n          data-srcset=\"https:\/\/dornsife.usc.edu\/earth\/wp-content\/uploads\/sites\/76\/2025\/04\/DSC_0603-scaled-e1744925110486-1280x720.jpg 1280w,https:\/\/dornsife.usc.edu\/earth\/wp-content\/uploads\/sites\/76\/2025\/04\/DSC_0603-scaled-e1744925110486-768x432.jpg 768w\"          data-sizes=\"(min-width:1200px) 75vw, (min-width:768px) 83vw, 100vw\"          class=\"lazyload\"\n        \n                  alt=\"Group photo in the ignimbrites\"\n        \n        \n                                      \/>\n\n    \n    \n  \n  \n\n<\/div>\n                              <\/div>\n                                                <div class=\"swiper-slide\">\n                                      \n<div class=\"f--field f--image\">\n\n    \n    \n    \n    \n    \n    \n              \n      <img\n                            data-src=\"https:\/\/dornsife.usc.edu\/earth\/wp-content\/uploads\/sites\/76\/2025\/04\/DSC_0580-1-768x432.jpg\"\n          data-srcset=\"https:\/\/dornsife.usc.edu\/earth\/wp-content\/uploads\/sites\/76\/2025\/04\/DSC_0580-1-1920x1080.jpg 1920w,https:\/\/dornsife.usc.edu\/earth\/wp-content\/uploads\/sites\/76\/2025\/04\/DSC_0580-1-1280x720.jpg 1280w,https:\/\/dornsife.usc.edu\/earth\/wp-content\/uploads\/sites\/76\/2025\/04\/DSC_0580-1-768x432.jpg 768w\"          data-sizes=\"(min-width:1200px) 75vw, (min-width:768px) 83vw, 100vw\"          class=\"lazyload\"\n        \n                  alt=\"Class discussing an ignimbrite (fused volcanic ash) deposit formed from an explosive volcanic eruption\"\n        \n        \n                                      \/>\n\n    \n    \n  \n  \n\n<\/div>\n                              <\/div>\n                                                <div class=\"swiper-slide\">\n                                      \n<div class=\"f--field f--image\">\n\n    \n    \n    \n    \n    \n    \n              \n      <img\n                            data-src=\"https:\/\/dornsife.usc.edu\/earth\/wp-content\/uploads\/sites\/76\/2025\/04\/DSC_0611-768x432.jpg\"\n          data-srcset=\"https:\/\/dornsife.usc.edu\/earth\/wp-content\/uploads\/sites\/76\/2025\/04\/DSC_0611-1920x1080.jpg 1920w,https:\/\/dornsife.usc.edu\/earth\/wp-content\/uploads\/sites\/76\/2025\/04\/DSC_0611-1280x720.jpg 1280w,https:\/\/dornsife.usc.edu\/earth\/wp-content\/uploads\/sites\/76\/2025\/04\/DSC_0611-768x432.jpg 768w\"          data-sizes=\"(min-width:1200px) 75vw, (min-width:768px) 83vw, 100vw\"          class=\"lazyload\"\n        \n                  alt=\"Granitic mountains\"\n        \n        \n                                      \/>\n\n    \n    \n  \n  \n\n<\/div>\n                              <\/div>\n                                                <div class=\"swiper-slide\">\n                                      \n<div class=\"f--field f--image\">\n\n    \n    \n    \n    \n    \n    \n              \n      <img\n                            data-src=\"https:\/\/dornsife.usc.edu\/earth\/wp-content\/uploads\/sites\/76\/2025\/04\/DSC_0538-768x432.jpg\"\n          data-srcset=\"https:\/\/dornsife.usc.edu\/earth\/wp-content\/uploads\/sites\/76\/2025\/04\/DSC_0538-1920x1080.jpg 1920w,https:\/\/dornsife.usc.edu\/earth\/wp-content\/uploads\/sites\/76\/2025\/04\/DSC_0538-1280x720.jpg 1280w,https:\/\/dornsife.usc.edu\/earth\/wp-content\/uploads\/sites\/76\/2025\/04\/DSC_0538-768x432.jpg 768w\"          data-sizes=\"(min-width:1200px) 75vw, (min-width:768px) 83vw, 100vw\"          class=\"lazyload\"\n        \n                  alt=\"View of the Amboy basaltic lava field through the breached crater wall of the volcano\"\n        \n        \n                                      \/>\n\n    \n    \n  \n  \n\n<\/div>\n                              <\/div>\n                                                <div class=\"swiper-slide\">\n                                      \n<div class=\"f--field f--image\">\n\n    \n    \n    \n    \n    \n    \n              \n      <img\n                            data-src=\"https:\/\/dornsife.usc.edu\/earth\/wp-content\/uploads\/sites\/76\/2025\/04\/DSC_0595-scaled-e1744925138272-768x432.jpg\"\n          data-srcset=\"https:\/\/dornsife.usc.edu\/earth\/wp-content\/uploads\/sites\/76\/2025\/04\/DSC_0595-scaled-e1744925138272-1280x720.jpg 1280w,https:\/\/dornsife.usc.edu\/earth\/wp-content\/uploads\/sites\/76\/2025\/04\/DSC_0595-scaled-e1744925138272-768x432.jpg 768w\"          data-sizes=\"(min-width:1200px) 75vw, (min-width:768px) 83vw, 100vw\"          class=\"lazyload\"\n        \n                  alt=\"Student group exploring the ignimbrites\"\n        \n        \n                                      \/>\n\n    \n    \n  \n  \n\n<\/div>\n                              <\/div>\n                              <\/div>\n    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fill=\"#000\" points=\"19.3,27.5 29.3,17.5 \n\t19.3,7.5 16.3,10.4 21.4,15.4 6.7,15.4 6.7,19.6 21.4,19.6 16.3,24.6 \"\/>\n<\/svg>\n          <\/button>\n        <\/div>\n\n        <div class=\"swiper-wrapper\">\n                                    <div class=\"swiper-slide\">\n                                  <div class=\"slide-caption\">\n                        \n<div class=\"f--field f--description\">\n\n    \n  <p>Group photo in the ignimbrites<\/p>\n\n\n\n<\/div>\n                  <\/div>\n                              <\/div>\n                                                <div class=\"swiper-slide\">\n                                  <div class=\"slide-caption\">\n                        \n<div class=\"f--field f--description\">\n\n    \n  <p>Class discussing an ignimbrite (fused volcanic ash) deposit formed from an explosive volcanic eruption<\/p>\n\n\n\n<\/div>\n                  <\/div>\n                              <\/div>\n                                                <div class=\"swiper-slide\">\n                                  <div class=\"slide-caption\">\n                        \n<div class=\"f--field f--description\">\n\n    \n  <p>Granitic mountains<\/p>\n\n\n\n<\/div>\n                  <\/div>\n                              <\/div>\n                                                <div class=\"swiper-slide\">\n                                  <div class=\"slide-caption\">\n                        \n<div class=\"f--field f--description\">\n\n    \n  <p>View of the Amboy basaltic lava field through the breached crater wall of the volcano<\/p>\n\n\n\n<\/div>\n                  <\/div>\n                              <\/div>\n                                                <div class=\"swiper-slide\">\n                                  <div class=\"slide-caption\">\n                        \n<div class=\"f--field f--description\">\n\n    \n  <p>Student group exploring the ignimbrites<\/p>\n\n\n\n<\/div>\n                  <\/div>\n                              <\/div>\n                              <\/div>\n\n      <\/div>\n\n\n    <\/div>\n  \n  <\/div>\n\n\n  <\/div><\/div>\n","protected":false},"excerpt":{"rendered":"<p>Professor Noah Phillips takes students on a weekend excursion for GEOL 316<\/p>\n","protected":false},"author":83,"featured_media":5037,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[22,14,24],"tags":[],"class_list":["post-5035","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-faculty","category-grad-students","category-research"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.7 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Weekend field trip to the Mojave Desert<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link 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