{"id":23787,"date":"2020-09-08T22:18:24","date_gmt":"2020-09-08T20:18:24","guid":{"rendered":"http:\/\/karmaka.de\/?p=23787"},"modified":"2020-09-08T22:18:26","modified_gmt":"2020-09-08T20:18:26","slug":"chondrules-reveal-large-scale-outward-transport-of-inner-solar-system-materials-in-the-protoplanetary-disk","status":"publish","type":"post","link":"https:\/\/karmaka.de\/?p=23787","title":{"rendered":"Chondrules reveal large-scale outward transport of inner Solar System materials in the protoplanetary disk<span class=\"badge-status\" style=\"background:#787878\">OPEN ACCESS<\/span>&nbsp;"},"content":{"rendered":"\n<p>Curtis D. Williams, Matthew E. Sanborn, C\u00e9line Defouilloy, Qing-Zhu Yin, Noriko T. Kita, Denton S. Ebel, Akane Yamakawa, and Katsuyuki Yamashita<\/p>\n\n\n\n<p>PNAS, first published September 8, 2020<\/p>\n\n\n\n<p><a href=\"https:\/\/www.pnas.org\/content\/early\/2020\/09\/01\/2005235117\" target=\"_blank\" rel=\"noreferrer noopener\"><strong>LINK (OPEN ACCESS)<\/strong><\/a><br><a href=\"https:\/\/www.pnas.org\/content\/pnas\/early\/2020\/09\/01\/2005235117.full.pdf\" target=\"_blank\" rel=\"noreferrer noopener\"><strong>PDF (OPEN ACCESS)<\/strong><\/a><\/p>\n\n\n\n<p class=\"justify-text\">&#8220;Dynamic models of the protoplanetary disk indicate there should be large-scale material transport in and out of the inner Solar System, but direct evidence for such transport is scarce. Here we show that the \u03b550Ti-\u03b554Cr-\u039417O systematics of large individual chondrules, which typically formed 2 to 3 My after the formation of the first solids in the Solar System, indicate certain meteorites (CV and CK chondrites) that formed in the outer Solar System accreted an assortment of both inner and outer Solar System materials, as well as material previously unidentified through the analysis of bulk meteorites. Mixing with primordial refractory components reveals a \u201cmissing reservoir\u201d that bridges the gap between inner and outer Solar System materials. We also observe chondrules with positive \u03b550Ti and \u03b554Cr plot with a constant offset below the primitive chondrule mineral line (PCM), indicating that they are on the slope \u223c1.0 in the oxygen three-isotope diagram. In contrast, chondrules with negative \u03b550Ti and \u03b554Cr increasingly deviate above from PCM line with increasing \u03b418O, suggesting that they are on a mixing trend with an ordinary chondrite-like isotope reservoir. Furthermore, the \u039417O-Mg# systematics of these chondrules indicate they formed in environments characterized by distinct abundances of dust and H2O ice. We posit that large-scale outward transport of nominally inner Solar System materials most likely occurred along the midplane associated with a viscously evolving disk and that CV and CK chondrules formed in local regions of enhanced gas pressure and dust density created by the formation of Jupiter.&#8221;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Curtis D. Williams, Matthew E. Sanborn, C\u00e9line Defouilloy, Qing-Zhu Yin, Noriko T. Kita, Denton S. Ebel, Akane Yamakawa, and Katsuyuki Yamashita PNAS, first published September 8, 2020 LINK (OPEN ACCESS)PDF (OPEN ACCESS) &#8220;Dynamic models of&#8230;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[9,56,148,15,14,72,1160,71],"tags":[1272,1124,1812,5694,397,1850],"_links":{"self":[{"href":"https:\/\/karmaka.de\/index.php?rest_route=\/wp\/v2\/posts\/23787"}],"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=23787"}],"version-history":[{"count":1,"href":"https:\/\/karmaka.de\/index.php?rest_route=\/wp\/v2\/posts\/23787\/revisions"}],"predecessor-version":[{"id":23788,"href":"https:\/\/karmaka.de\/index.php?rest_route=\/wp\/v2\/posts\/23787\/revisions\/23788"}],"wp:attachment":[{"href":"https:\/\/karmaka.de\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=23787"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/karmaka.de\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=23787"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/karmaka.de\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=23787"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}