{"id":39875,"date":"2025-12-02T19:46:04","date_gmt":"2025-12-02T18:46:04","guid":{"rendered":"https:\/\/karmaka.de\/?p=39875"},"modified":"2025-12-02T20:19:11","modified_gmt":"2025-12-02T19:19:11","slug":"description-and-modeling-of-the-jiddat-al-harasis-091-l5-strewn-field","status":"publish","type":"post","link":"https:\/\/karmaka.de\/?p=39875","title":{"rendered":"Description and modeling of the Jiddat al Harasis 091 L5 strewn field<span class=\"badge-status\" style=\"background:#787878\">OPEN ACCESS<\/span>&nbsp;"},"content":{"rendered":"\n<p>Karl Wimmer, Edwin Gnos, Beda Hofmann, Sandro Boschetti, Jan Walbrecker, Hansruedi Maurer<\/p>\n\n\n\n<p>MAPS, First published: 02 December 2025<\/p>\n\n\n\n<p><a href=\"https:\/\/onlinelibrary.wiley.com\/doi\/10.1111\/maps.70079\" target=\"_blank\" rel=\"noreferrer noopener\"><strong>LINK (OPEN ACCESS)<\/strong><\/a><br><a href=\"https:\/\/onlinelibrary.wiley.com\/doi\/epdf\/10.1111\/maps.70079\" target=\"_blank\" rel=\"noreferrer noopener\"><strong>PDF (OPEN ACCESS)<\/strong><\/a><\/p>\n\n\n\n<p class=\"justify-text\">&#8220;With a size of 51.2\u2009\u00d7\u20097.2\u2009km, the 10.9\u2009\u00b1\u20091.7\u2009ka old Jiddat al Harasis 091 L5 chondrite strewn field is the largest known in Oman. It consists of more than 700 meteorites with a total mass of &gt;4.5\u2009tons from which the largest six stones of &gt;100\u2009kg to 1.5\u2009tons make up two thirds of the total mass. Small stones are underrepresented, consistent with a fracturing behavior of a meteor with low shock level. Modeling yields that a bolide with 28\u2009\u00b1\u200912 tons (115\u2009\u00b1\u200915\u2009cm radius) entered the atmosphere at a shallow angle of 22\u00b0\u2009\u00b1\u20092\u00b0 with a velocity of about 16 kms\u22121. For ~16\u2009s, it produced a spectacular meteor along a luminous path of ~200\u2009km length. Mass mixing within the rather straight and narrow strewn field indicates a sequence of multiple fragmentations from below 50\u2009km down to 7\u2009km altitude. This can be resolved adopting a wind profile from nowadays winter season, as the weather patterns with alternating Monsoon and Passat winds in the region are rather well known and repeatable since the last ice age. The largest masses with 1447 and 842\u2009kg, respectively, produced impact breccia consisting of limestone and meteorite fragments. According to the model, the biggest mass hit the ground at a velocity of 175\u2009ms\u22121 and released an impact energy of 22\u2009MJ, corresponding to 5.3\u2009kg TNT. This may have produced an impact crater of ~1\u2009m diameter which, however, is not preserved. Breccia found below a much smaller mass of 68\u2009kg deserves an explanation beyond impact energy.&#8221;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Karl Wimmer, Edwin Gnos, Beda Hofmann, Sandro Boschetti, Jan Walbrecker, Hansruedi Maurer MAPS, First published: 02 December 2025 LINK (OPEN ACCESS)PDF (OPEN ACCESS) &#8220;With a size of 51.2\u2009\u00d7\u20097.2\u2009km, the 10.9\u2009\u00b1\u20091.7\u2009ka old Jiddat al Harasis 091&#8230;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[23,7],"tags":[2421,7023,3188,1807,1301],"_links":{"self":[{"href":"https:\/\/karmaka.de\/index.php?rest_route=\/wp\/v2\/posts\/39875"}],"collection":[{"href":"https:\/\/karmaka.de\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/karmaka.de\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/karmaka.de\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/karmaka.de\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=39875"}],"version-history":[{"count":2,"href":"https:\/\/karmaka.de\/index.php?rest_route=\/wp\/v2\/posts\/39875\/revisions"}],"predecessor-version":[{"id":39877,"href":"https:\/\/karmaka.de\/index.php?rest_route=\/wp\/v2\/posts\/39875\/revisions\/39877"}],"wp:attachment":[{"href":"https:\/\/karmaka.de\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=39875"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/karmaka.de\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=39875"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/karmaka.de\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=39875"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}