{"id":60079,"date":"2018-07-03T16:01:13","date_gmt":"2018-07-03T07:01:13","guid":{"rendered":"https:\/\/www.waseda.jp\/top\/?p=60079"},"modified":"2018-10-19T13:10:16","modified_gmt":"2018-10-19T04:10:16","slug":"%e5%8e%9f%e5%a7%8b%e5%a4%aa%e9%99%bd%e7%b3%bb%e5%86%86%e7%9b%a4%e3%81%ae%e4%b8%ad%e5%bf%83%e8%bf%91%e3%81%8f%e3%81%a7%e7%b5%90%e6%99%b6%e5%8c%96%e3%81%97%e3%81%9f%e3%82%b7%e3%83%aa%e3%82%ab%e3%82%92","status":"publish","type":"post","link":"https:\/\/www.waseda.jp\/inst\/research\/news\/60079","title":{"rendered":"\u539f\u59cb\u592a\u967d\u7cfb\u5186\u76e4\u306e\u4e2d\u5fc3\u8fd1\u304f\u3067\u7d50\u6676\u5316\u3057\u305f\u30b7\u30ea\u30ab\u3092\u9695\u77f3\u4e2d\u306b\u4e16\u754c\u3067\u521d\u3081\u3066\u767a\u898b"},"content":{"rendered":"<p>\u7dcf\u5408\u7814\u7a76\u5927\u5b66\u9662\u5927\u5b66\u306e\u5c0f\u677e\u7766\u7f8e\u52a9\u6559\u3001\u65e9\u7a32\u7530\u5927\u5b66\u306e\u30d5\u30a7\u30a4\u30ac\u30f3\u30fb\u30c6\u30a3\u30e2\u30b7\u30fc\u6559\u6388\u3089\u3092\u4e2d\u5fc3\u3068\u3059\u308b\u7814\u7a76\u30b0\u30eb\u30fc\u30d7\u306f\u3001\u9695\u77f3\u4e2d\u306b\u592a\u967d\u304c\u8a95\u751f\u3057\u3066\u9593\u3082\u306a\u3044\u9803\u306b\u5f62\u6210\u3057\u305f\u30b7\u30ea\u30ab(\u77f3\u82f1; 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\/>\n\u672c\u7814\u7a76\u3067\u7528\u3044\u305f\u9695\u77f3\u306e\u8d77\u6e90\u306f\u3001\u306f\u3084\u3076\u3055\uff12\u304c\u63a2\u67fb\u3092\u884c\u3063\u3066\u3044\u308b\u5c0f\u60d1\u661f\u30ea\u30e5\u30a6\u30b0\u30a6\u306b\u8fd1\u3044\u8d77\u6e90\u3092\u6301\u3064\u5929\u4f53\u3067\u3042\u308b\u3068\u8003\u3048\u3089\u308c\u307e\u3059\u3002\u3053\u306e\u3088\u3046\u306a\u592a\u967d\u7cfb\u5275\u4e16\u671f\u306e\u60c5\u5831\u3092\u4fdd\u5b58\u3059\u308b\u7269\u8cea\u306f\u3001\u5c0f\u60d1\u661f\u30ea\u30e5\u30a6\u30b0\u30a6\u306e\u8868\u9762\u306b\u3082\u5b58\u5728\u3057\u3066\u3044\u308b\u53ef\u80fd\u6027\u304c\u9ad8\u304f\u3001\u4eca\u5f8c\u3001\u5c0f\u60d1\u661f\u63a2\u67fb\u6210\u679c\u3068\u7d44\u307f\u5408\u308f\u305b\u305f\u7d71\u5408\u7684\u306a\u7814\u7a76\u3092\u884c\u3046\u3053\u3068\u3067\u3001\u592a\u967d\u7cfb\u5185\u3067\u306e\u7269\u8cea\u79fb\u52d5\u306b\u3064\u3044\u3066\u306e\u77e5\u898b\u304c\u5927\u304d\u304f\u5e83\u304c\u308b\u3053\u3068\u304c\u671f\u5f85\u3055\u308c\u307e\u3059\u3002<br \/>\n\u3010\u63b2\u8f09\u8a8c\u3011<br \/>\n\u672c\u7814\u7a76\u6210\u679c\u306f\u3001\u7c73\u56fd\u96fb\u5b50\u30b8\u30e3\u30fc\u30ca\u30ebProceeding of the National Academy of Sciences of the United States of America (PNAS)\u306b\u5e73\u621030\u5e747\u67082\u65e5\u5348\u5f8c3\u6642\uff08\u7c73\u56fd\u6771\u90e8\u6642\u9593\uff09\u306b\u63b2\u8f09\u3055\u308c\u307e\u3059\u3002<br \/>\n\u8ad6\u6587\u30bf\u30a4\u30c8\u30eb\uff1a<a href=\"http:\/\/www.pnas.org\/content\/early\/2018\/06\/29\/1722265115\">First evidence for silica condensation within the solar protoplanetary disk<\/a>\uff08\u539f\u59cb\u592a\u967d\u7cfb\u5186\u76e4\u304b\u3089\u51dd\u7e2e\u3057\u305f\u30b7\u30ea\u30ab\u306e\u767a\u898b\uff09<br \/>\n\u8457\u8005\uff1aMutsumi Komatsu, Timothy Fagan, Alexander Krot, Kazuhide Nagashima, Michail Petaev, Makoto Kimura, Akira Yamaguchi<br \/>\nDOI : 10.1073\/pnas.1722265115<br \/>\n<div id=\"attachment_60088\" class=\"wp-caption alignnone\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-60088 size-medium\" src=\"https:\/\/www.waseda.jp\/top\/assets\/uploads\/2018\/07\/fig1-1-768x427-610x339.jpg\" alt=\"\" width=\"610\" height=\"339\" \/><p class=\"wp-caption-text\">\u56f31\uff0e\u539f\u59cb\u592a\u967d\u7cfb\u661f\u96f2\u306e\u30a4\u30e1\u30fc\u30b8\u56f3\u3002\u5de6\u56f3\u306f\u30b7\u30ea\u30ab\u7d50\u6676(SiO2)\u69cb\u9020\u306e\u56f3\u3002\u8d64\u8272\u7c92\u5b50\u306f\u30b7\u30ea\u30b3\u30f3\u539f\u5b50\u3001\u9752\u8272\u7c92\u5b50\u306f\u9178\u7d20\u539f\u5b50\u3092\u793a\u3057\u307e\u3059\u3002\u53f3\u4e0a\u56f3\u306f\u4eca\u56de\u767a\u898b\u3057\u305f\u30a2\u30e1\u30fc\u30d0\u72b6\u304b\u3093\u3089\u3093\u77f3\u96c6\u5408\u4f53\u306e\u96fb\u5b50\u9855\u5fae\u93e1\u5199\u771f\u3002\uff08\u00a9NASA\/JPL-Caltech\uff09<\/p><\/div><\/p>\n<h4>\u7814\u7a76\u306e\u80cc\u666f<\/h4>\n<p>\u8fd1\u5e74\u306e\u89b3\u6e2c\u7cbe\u5ea6\u306e\u5411\u4e0a\u306b\u3088\u308a\u3001\u592a\u967d\u7cfb\u5916\u306e\u6052\u661f\u3067\u306e\u60d1\u661f\u5f62\u6210\u9818\u57df\u306e\u89b3\u6e2c\u304c\u53ef\u80fd\u3068\u306a\u308a\u307e\u3057\u305f\u3002\u4e00\u65b9\u3067\u3001\u592a\u967d\u7cfb\u5185\u306e\u7269\u8cea\u306b\u3064\u3044\u3066\u306f\u3001\u59cb\u539f\u9695\u77f3\u306b\u7269\u8cea\u9032\u5316\u306e\u60c5\u5831\u304c\u4fdd\u5b58\u3055\u308c\u3066\u304a\u308a\u3001\u6052\u661f\u306e\u89b3\u6e2c\u306b\u3088\u308a\u78ba\u8a8d\u3055\u308c\u305f\u7269\u8cea\u306e\u591a\u304f\u306f\u3001\u9695\u77f3\u4e2d\u306b\u3082\u5e83\u304f\u542b\u307e\u308c\u3066\u3044\u308b\u3053\u3068\u304c\u308f\u304b\u3063\u3066\u3044\u307e\u3059\u3002<br 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class=\"wp-image-60089 size-full\" src=\"https:\/\/www.waseda.jp\/top\/assets\/uploads\/2018\/07\/fig2.jpg\" alt=\"\" width=\"473\" height=\"354\" \/><p class=\"wp-caption-text\">\u56f32. Yamato-793261\u9695\u77f3\u306e\u5168\u4f53\u5199\u771f\u3002\uff08\u30af\u30ec\u30b8\u30c3\u30c8\uff1a\u56fd\u7acb\u6975\u5730\u7814\u7a76\u6240\uff09<\/p><\/div><br \/>\n&nbsp;<br \/>\n<div id=\"attachment_60090\" class=\"wp-caption alignnone\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-60090 size-medium\" src=\"https:\/\/www.waseda.jp\/top\/assets\/uploads\/2018\/07\/fig3-610x379.jpg\" alt=\"\" width=\"610\" height=\"379\" \/><p class=\"wp-caption-text\">\u56f33\uff0e\u539f\u59cb\u592a\u967d\u7cfb\u5186\u76e4\u306e\u6a21\u5f0f\u56f3\u3002\u4eca\u56de\u767a\u898b\u3057\u305f\u96c6\u5408\u4f53(AOA#4)\u306f\u3001\u539f\u59cb\u592a\u967d\u8fd1\u304f\u3067\u5f62\u6210\u3055\u308c\u305f\u5f8c\u3001\u5c0f\u60d1\u661f\u5e2f\u4ed8\u8fd1\u307e\u3067\u98db\u3070\u3055\u308c\u3001\u30b3\u30f3\u30c9\u30eb\u30fc\u30eb\u3084\u4f4e\u6e29\u306e\u30c0\u30b9\u30c8\u3068\u5171\u306b\u5c0f\u60d1\u661f\u3068\u3057\u3066\u96c6\u7a4d\u3057\u305f\u3068\u8003\u3048\u3089\u308c\u307e\u3059\u3002\uff08Krot and Scott, 2005*; Nakashima et al., 2012**\u3092\u6539\u8a02\uff09<\/p><\/div><br \/>\n\u96e3\u63ee\u767a\u6027\u5305\u6709\u7269\u306e\u4e00\u7a2e\u3067\u3042\u308b\u3001\u30a2\u30e1\u30fc\u30d0\u72b6\u304b\u3093\u3089\u3093\u77f3\u96c6\u5408\u4f53(Amoeboid olivine aggregates; AOA)\u306f\u3001\u304b\u3093\u3089\u3093\u77f3\u3068Ca\u3068Al\u306b\u5bcc\u3080\u9271\u7269\u304b\u3089\u6210\u308a\u7acb\u3061\u3001\u6eb6\u878d\u306a\u3069\u306e\u4e8c\u6b21\u7684\u4f5c\u7528\u306e\u7a0b\u5ea6\u304c\u4f4e\u304f\u3001\u5f62\u6210\u76f4\u5f8c\u306e\u72b6\u614b\u3092\u4fdd\u5b58\u3059\u308b\u7269\u8cea\u3068\u3057\u3066\u77e5\u3089\u308c\u3066\u3044\u307e\u3059\u3002\u672c\u7814\u7a76\u3067\u5206\u6790\u3092\u884c\u3063\u305fYamato-793261\u4e2d\u306eAOA (AOA#\uff14)\u306b\u306f\u3001AOA\u3092\u69cb\u6210\u3059\u308b\u901a\u5e38\u306e\u9271\u7269\u3067\u3042\u308bMg\u304b\u3093\u3089\u3093\u77f3\u3001Ca\u8f1d\u77f3\u3001Mg\u8f1d\u77f3\u306b\u52a0\u3048\u3066\u3001\u8d85\u96e3\u63ee\u767a\u6027\u9271\u7269\uff08Zr-Sc\u9178\u5316\u7269\u3001Sc-Ca\u8f1d\u77f3\uff09\u3001\u30b7\u30ea\u30ab\u304c\u542b\u307e\u308c\u308b\u3053\u3068\u304c\u308f\u304b\u308a\u307e\u3057\u305f\uff08\u56f3\uff14\uff09\u3002\u7d50\u6676\u69cb\u9020\u3092\u8abf\u3079\u305f\u3068\u3053\u308d\u3001\u3053\u306e\u30b7\u30ea\u30ab\u306f\u3001\u30b7\u30ea\u30ab\u306e\u4e2d\u3067\u3082\u3088\u308a\u4f4e\u6e29\u3067\u7d50\u6676\u5316\u3059\u308b\u300c\u77f3\u82f1\u300d\u3067\u3042\u308b\u3053\u3068\u304c\u308f\u304b\u308a\u307e\u3057\u305f\u3002\u3053\u306e\u96c6\u5408\u4f53\u306b\u542b\u307e\u308c\u308b\u9271\u7269\u304c\u661f\u96f2\u30ac\u30b9\u304b\u3089\u51dd\u7e2e\u3059\u308b\u6e29\u5ea6\u306f\u3001\u7d041500\u2103\u304b\u3089900\u2103\u3067\u3042\u3063\u305f\u3068\u8003\u3048\u3089\u308c\u307e\u3059\u3002\u3053\u306e\u3088\u3046\u306b\u3001\u975e\u5e38\u306b\u5e83\u3044\u6e29\u5ea6\u9818\u57df\u3067\u9271\u7269\u304c\u51dd\u7e2e\u3055\u308c\u305f\u5f62\u8de1\u3092\u793a\u3059\u96c6\u5408\u4f53\u306f\u3001\u592a\u967d\u7cfb\u7269\u8cea\u3067\u521d\u3081\u3066\u306e\u767a\u898b\u3067\u3059\u3002\u3057\u304b\u3082\u3001\u3053\u308c\u3089\u306e\u9271\u7269\u306e\u9178\u7d20\u540c\u4f4d\u4f53\u7d44\u6210(4)\u306f\u3001\u592a\u967d\u7d44\u6210\u306b\u8fd1\u3044\u5024\u3092\u6301\u3064\u3053\u3068\u304c\u660e\u3089\u304b\u306b\u306a\u308a\u3001\u96c6\u5408\u4f53\u306e\u9271\u7269\u306e\u5168\u3066\u304c\u3001\u592a\u967d\u306b\u8fd1\u3044\u5834\u6240\u3067\u5f62\u6210\u3055\u308c\u305f\u3053\u3068\u304c\u308f\u304b\u308a\u307e\u3057\u305f\u3002\u3057\u304b\u3057\u306a\u304c\u3089\u30b7\u30ea\u30ab\u306f\u3001\u592a\u967d\u7cfb\u661f\u96f2\u30ac\u30b9\u7d44\u6210\u306e\u5e73\u8861\u51dd\u7e2e\u8a08\u7b97\u3067\u306f\u7406\u8ad6\u7684\u306b\u306f\u5f62\u6210\u3055\u308c\u307e\u305b\u3093\u3002\u3053\u306e\u767a\u898b\u306f\u3001\u592a\u967d\u7cfb\u5186\u76e4\u306e\u4e2d\u5fc3\u90e8\u306b\u3001\u4ed6\u306e\u9271\u7269\u304c\u51dd\u7e2e\u3059\u308b\u3053\u3068\u306b\u3088\u3063\u3066\u5316\u5b66\u7d44\u6210\u304c\u5206\u5225\u3057\u305f\u30ac\u30b9\u304c\u5b58\u5728\u3057\u3001\u305d\u3053\u3067\u30b7\u30ea\u30ab\u304c\u5f62\u6210\u3055\u308c\u305f\u8a3c\u62e0\u3067\u3042\u308b\u3068\u8003\u3048\u3089\u308c\u307e\u3059\u3002<br \/>\n<div id=\"attachment_60091\" class=\"wp-caption alignnone\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-60091 size-medium\" src=\"https:\/\/www.waseda.jp\/top\/assets\/uploads\/2018\/07\/fig4-610x369.jpg\" alt=\"\" width=\"610\" height=\"369\" \/><p class=\"wp-caption-text\">\u56f34\uff0eAOA\uff03\uff14\u306e\uff08a\uff09\u5143\u7d20\u30de\u30c3\u30d7\u3001(b)\u53cd\u5c04\u96fb\u5b50\u9855\u5fae\u93e1\u50cf\u3068(c)\u9178\u7d20\u540c\u4f4d\u4f53\u7d44\u6210\u3002(a) AOA#4\u306f\u3001\u30de\u30b0\u30cd\u30b7\u30a6\u30e0(Mg)\u306b\u5bcc\u3080\u9271\u7269(\u8d64\u8272\u306e\u9271\u7269)\u3068\u3001\u30ab\u30eb\u30b7\u30a6\u30e0(Ca)\u3068\u30a2\u30eb\u30df\u30cb\u30a6\u30e0(Al)\u306b\u5bcc\u3080\u9271\u7269(\u7dd1\u8272\u3068\u9752\u8272\u306e\u9271\u7269) \u304b\u3089\u6210\u308a\u7acb\u3063\u3066\u3044\u307e\u3059\u3002\u9ec4\u8272\u3044\u9271\u7269\u304c\u30b7\u30ea\u30b3\u30f3(Si)\u306b\u5bcc\u3080\u30b7\u30ea\u30ab\u3067\u3059\u3002(b)\u56db\u89d2\u3067\u56f2\u3063\u305f\u90e8\u5206\u3092\u62e1\u5927\u3057\u305f\u53cd\u5c04\u96fb\u5b50\u9855\u5fae\u93e1\u5199\u771f\u3067\u306f\u3001\u660e\u308b\u3044\u8272\u306e\u96e3\u63ee\u767a\u6027\u9271\u7269\u3067\u3042\u308bZr-Sc\u8f1d\u77f3(ZrSc-px), Sc-Ca\u8f1d\u77f3(Sc-px\uff09\u3001Ca\u8f1d\u77f3(cpx\uff09\u3068\u6697\u3044\u8272\u306e\u9271\u7269\u3067\u3042\u308bMg\u304b\u3093\u3089\u3093\u77f3(fo)\u3001Mg\u8f1d\u77f3(px)\u3001\u30b7\u30ea\u30ab(qz)\u304c\u5171\u5b58\u3057\u3066\u3044\u308b\u3053\u3068\u304c\u308f\u304b\u308a\u307e\u3059\u3002(c) 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\/>\n\u30d5\u30a7\u30a4\u30ac\u30f3\u30fb\u30c6\u30a3\u30e2\u30b7\u30fc\uff08\u65e9\u7a32\u7530\u5927\u5b66\u6559\u80b2\u5b66\u90e8\u7406\u5b66\u79d1\u5730\u7403\u79d1\u5b66\u5c02\u4fee\uff09<br \/>\n\u30af\u30ed\u30c3\u30c8\u30fb\u30a2\u30ec\u30af\u30b5\u30f3\u30c0\u30fc\uff08\u30cf\u30ef\u30a4\u5927\u5b66\u5730\u7403\u7269\u7406\u60d1\u661f\u79d1\u5b66\u7814\u7a76\u6240\uff09<br \/>\n\u6c38\u5cf6\u4e00\u79c0\uff08\u30cf\u30ef\u30a4\u5927\u5b66\u5730\u7403\u7269\u7406\u60d1\u661f\u79d1\u5b66\u7814\u7a76\u6240\uff09<br \/>\n\u30da\u30bf\u30a8\u30d5\u30fb\u30df\u30cf\u30a8\u30eb\uff08\u30cf\u30fc\u30d0\u30fc\u30c9\u5927\u5b66\u5730\u7403\u60d1\u661f\u79d1\u5b66\u90e8\uff09<br \/>\n\u6728\u6751\u771e\uff08\u56fd\u7acb\u6975\u5730\u7814\u7a76\u6240\uff09<br \/>\n\u5c71\u53e3\u4eae\uff08\u56fd\u7acb\u6975\u5730\u7814\u7a76\u6240\u30fb\u7dcf\u5408\u7814\u7a76\u5927\u5b66\u9662\u5927\u5b66\u8907\u5408\u79d1\u5b66\u7814\u7a76\u79d1\u6975\u57df\u79d1\u5b66\u5c02\u653b\uff09<\/p>\n<h4>\u7528\u8a9e\u89e3\u8aac<\/h4>\n<p>(1) \u30b7\u30ea\u30ab<br \/>\n\u4e00\u822c\u7684\u306b\u306f\u77f3\u82f1\u3084\u6c34\u6676\u3068\u547c\u3070\u308c\u308b\u30b7\u30ea\u30ab\uff08\u4e8c\u9178\u5316\u30b1\u30a4\u7d20; SiO2\uff09\u306f\u3001\u5730\u7403\u8868\u5c64\u3067\u306f\u4e3b\u8981\u9020\u5ca9\u9271\u7269\u3068\u3057\u3066\u5927\u91cf\u306b\u5b58\u5728\u3057\u3066\u3044\u307e\u3059\u304c\u3001\u5730\u7403\u5916\u7269\u8cea\u3067\u306f\u6975\u3081\u3066\u5c11\u91cf\u3057\u304b\u78ba\u8a8d\u3055\u308c\u3066\u3044\u307e\u305b\u3093\u3002\u30b7\u30ea\u30ab\u306f\u3001\u5f62\u6210\u6642\u306e\u6e29\u5ea6\u5727\u529b\u6761\u4ef6\u306b\u3088\u308a\u3001\u9ad8\u6e29\u304b\u3089\u30af\u30ea\u30b9\u30c8\u30d0\u30e9\u30a4\u30c8\u3001\u30c8\u30ea\u30c7\u30a3\u30de\u30a4\u30c8\u3001\u77f3\u82f1\u3078\u3068\u76f8\u8ee2\u79fb\u3092\u884c\u3044\u3001\u7570\u306a\u308b\u7d50\u6676\u69cb\u9020\u3092\u6301\u3064\u3053\u3068\u304c\u77e5\u3089\u308c\u3066\u3044\u307e\u3059\u3002\u4eca\u56de\u306e\u7814\u7a76\u3067\u307f\u3064\u304b\u3063\u305f\u30b7\u30ea\u30ab\u306f\u3001\u6bd4\u8f03\u7684\u4f4e\u6e29\u3067\u7d50\u6676\u5316\u3059\u308b\u77f3\u82f1\u3067\u3042\u308b\u3053\u3068\u304c\u78ba\u8a8d\u3055\u308c\u307e\u3057\u305f\u3002\u672c\u8ad6\u6587\u3067\u306f\u3001\u7d50\u6676\u69cb\u9020\u306b\u4f9d\u3089\u306a\u3044\u4e8c\u9178\u5316\u30b1\u30a4\u7d20\u306e\u7dcf\u79f0\u3068\u3057\u3066\u3001\u300c\u30b7\u30ea\u30ab\u300d\u3068\u3044\u3046\u7528\u8a9e\u3092\u7528\u3044\u3066\u3044\u307e\u3059\u3002<br \/>\n(2) \u30b3\u30f3\u30c9\u30e9\u30a4\u30c8\u9695\u77f3<br \/>\n\u9695\u77f3\u306e\u4e2d\u3067\u3082\u59cb\u539f\u7684\u306a\u3082\u306e\u306f\u3001\u30b3\u30f3\u30c9\u30e9\u30a4\u30c8\u9695\u77f3\uff08\u59cb\u539f\u7684\u9695\u77f3\uff09\u3068\u547c\u3070\u308c\u307e\u3059\u3002\u4e3b\u306b\u304b\u3093\u3089\u3093\u77f3\u3068\u8f1d\u77f3\u3067\u69cb\u6210\u3055\u308c\u308b\u3001\u30b3\u30f3\u30c9\u30eb\u30fc\u30eb\u3068\u3044\u3046\u7403\u72b6\u7c92\u5b50\u3092\u542b\u3080\u3053\u3068\u304c\u7279\u5fb4\u3067\u3059\u3002\u30b3\u30f3\u30c9\u30e9\u30a4\u30c8\u9695\u77f3\u306f\u3001\u30b3\u30f3\u30c9\u30eb\u30fc\u30eb\u3084\u96e3\u63ee\u767a\u6027\u5305\u6709\u7269\u306a\u3069\u306e\u9ad8\u6e29\u7269\u8cea\u3068\u3001\u4f4e\u6e29\u3067\u5f62\u6210\u3055\u308c\u305f\u9271\u7269\u7c92\u5b50\u3084\u6709\u6a5f\u7269\u30c0\u30b9\u30c8\u304c\u5c0f\u60d1\u661f\u4e0a\u3067\u96c6\u7a4d\u3057\u305f\u3001\u3044\u308f\u3070\u300c\u5806\u7a4d\u5ca9\u300d\u3067\u3042\u308b\u3068\u8003\u3048\u3089\u308c\u307e\u3059\u3002<br \/>\n(3) \u96e3\u63ee\u767a\u6027\u5305\u6709\u7269<br \/>\n\u539f\u59cb\u592a\u967d\u7cfb\u661f\u96f2\u306e\u8d85\u521d\u671f\u306e\u6bb5\u968e\u3067\u306f\u3001\u9ad8\u6e29\u306e\u661f\u96f2\u30ac\u30b9\u304b\u3089\u3001\u30ab\u30eb\u30b7\u30a6\u30e0\u3084\u30a2\u30eb\u30df\u30cb\u30a6\u30e0\u306b\u5bcc\u3080\u9271\u7269\u306e\u96c6\u5408\u4f53\u3067\u3042\u308b\u96e3\u63ee\u767a\u6027\u5305\u6709\u7269(CAI; Ca,Al-rich Inclusion)\u304c\u51dd\u7e2e\u904e\u7a0b\uff08\u6c17\u76f8\u304b\u3089\u306e\u7d50\u6676\u6210\u9577\uff09\u3092\u7d4c\u3066\u5f62\u6210\u3055\u308c\u305f\u3068\u8003\u3048\u3089\u308c\u3066\u3044\u307e\u3059\u3002\u96e3\u63ee\u767a\u6027\u5305\u6709\u7269\u306e\u5f62\u6210\u5e74\u4ee3\u306f\u30a6\u30e9\u30f3\u2015\u925b\u7cfb\u306e\u5e74\u4ee3\u6e2c\u5b9a\u6cd5\u306b\u3088\u308b\u306845.66\u5104\u5e74\u3067\u3042\u308a\u3001\u592a\u967d\u7cfb\u6700\u53e4\u306e\u7269\u8cea\u3067\u3042\u308b\u3068\u8003\u3048\u3089\u308c\u307e\u3059\u3002\u4eca\u56de\u7814\u7a76\u3092\u3057\u305f\u7269\u8cea\u3067\u3042\u308b\u30a2\u30e1\u30fc\u30d0\u72b6\u304b\u3093\u3089\u3093\u77f3\u96c6\u5408\u4f53\u306f\u3001\u96e3\u63ee\u767a\u6027\u5305\u6709\u7269\u306e\u4e00\u7a2e\u3067\u3059\u3002<br \/>\n(4) \u9178\u7d20\u540c\u4f4d\u4f53\u7d44\u6210<br \/>\n\u9178\u7d20\u306f\u30013\u3064\u306e\u5b89\u5b9a\u540c\u4f4d\u4f53(16O\u300117O\u300118O)\u3092\u6301\u3061\u3001\u305d\u306e\u540c\u4f4d\u4f53\u7d44\u6210\u306f\u539f\u59cb\u592a\u967d\u7cfb\u661f\u96f2\u306e\u5f62\u6210\u74b0\u5883\u3092\u793a\u3059\u91cd\u8981\u306a\u6307\u6a19\u3068\u3057\u3066\u7528\u3044\u3089\u308c\u307e\u3059\u3002\u5730\u7403\u306e\u6a19\u6e96\u6d77\u6c34\u306e\u5024\u3068\u6bd4\u8f03\u3057\u3001\u305d\u306e\u8a66\u6599\u304c\u3069\u306e\u7a0b\u5ea6\u306e16O\u306e\u300c\u305a\u308c\u300d\u304c\u3042\u308b\u304b\u3092\u5206\u6790\u3059\u308b\u3068\u3001\u5730\u7403\u4e0a\u306e\u7269\u8cea\u306fTF\u7dda(\u5730\u7403\u7269\u8cea\u5206\u5225\u7dda; Terrestrial Fractionation line)\u4e0a\u306b\u30d7\u30ed\u30c3\u30c8\u3055\u308c\u308b\u4e00\u65b9\u3001\u5730\u7403\u5916\u7269\u8cea\u306e\u9178\u7d20\u540c\u4f4d\u4f53\u7d44\u6210\u306f, CCAM\u7dda\uff08\u70ad\u7d20\u8cea\u30b3\u30f3\u30c9\u30e9\u30a4\u30c8\u7121\u6c34\u9271\u7269\u7dda; Carbonaceous Chondrite Anhydrous Mineral line\uff09\u4e0a\u306b\u30d7\u30ed\u30c3\u30c8\u3055\u308c\u308b\u3053\u3068\u304c\u77e5\u3089\u308c\u3066\u3044\u307e\u3059\u3002\u4eca\u56de\u767a\u898b\u3057\u305f\u9271\u7269\u306f\u5168\u3066\u3001\u592a\u967d\u306e\u9178\u7d20\u540c\u4f4d\u4f53\u7d44\u6210\u306b\u8fd1\u3044\u5024\u3092\u6301\u3061\uff08\u56f34\u30b0\u30e9\u30d5\u5de6\u4e0b\u306e\u9818\u57df\uff09\u3001\u7d50\u6676\u304c\u592a\u967d\u8fd1\u304f\u3067\u5f62\u6210\u3055\u308c\u305f\u3053\u3068\u3092\u793a\u5506\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n<h5>\u53c2\u8003\u6587\u732e<\/h5>\n<p>*Scott E.R.D. and Krot A.N. (2005) Chondritic meteorites and the high-temperature nebular origins of their components. In Chondrites and the Protoplanetary Disk, A. N. Krot, E. R. D. Scott, and B. Reipurth editors, Astron. Soc. Pacific Conf. Ser. 341, 15-53.<br \/>\n**Nakashima, D., Ushikubo, T., Joswiak, D. J., Brownlee, D. E., Matrajt, G., Weisberg, M. K., and Kita, N. T. (2012). Oxygen isotopes in crystalline silicates of comet Wild 2: A comparison of oxygen isotope systematics between wild 2 particles and chondritic materials. Earth and Planetary Science Letters, 357-358, 355-365.<br \/>\n&nbsp;<br \/>\n&nbsp;<br \/>\n&nbsp;<br \/>\n&nbsp;<br \/>\n&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u7dcf\u5408\u7814\u7a76\u5927\u5b66\u9662\u5927\u5b66\u306e\u5c0f\u677e\u7766\u7f8e\u52a9\u6559\u3001\u65e9\u7a32\u7530\u5927\u5b66\u306e\u30d5\u30a7\u30a4\u30ac\u30f3\u30fb\u30c6\u30a3\u30e2\u30b7\u30fc\u6559\u6388\u3089\u3092\u4e2d\u5fc3\u3068\u3059\u308b\u7814\u7a76\u30b0\u30eb\u30fc\u30d7\u306f\u3001\u9695\u77f3\u4e2d\u306b\u592a\u967d\u304c\u8a95\u751f\u3057\u3066\u9593\u3082\u306a\u3044\u9803\u306b\u5f62\u6210\u3057\u305f\u30b7\u30ea\u30ab(\u77f3\u82f1; SiO2)\u7d50\u6676\u3092\u4e16\u754c\u3067\u521d\u3081\u3066\u767a\u898b\u3057\u307e\u3057\u305f\u3002\u592a\u967d\u306e\u3088\u3046\u306a\u6052\u661f\u306e [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":66171,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[1],"tags":[145,178],"class_list":["post-60079","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-news","tag-pressrelease","tag-research"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.waseda.jp\/inst\/research\/wp-json\/wp\/v2\/posts\/60079","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.waseda.jp\/inst\/research\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.waseda.jp\/inst\/research\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.waseda.jp\/inst\/research\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.waseda.jp\/inst\/research\/wp-json\/wp\/v2\/comments?post=60079"}],"version-history":[{"count":1,"href":"https:\/\/www.waseda.jp\/inst\/research\/wp-json\/wp\/v2\/posts\/60079\/revisions"}],"predecessor-version":[{"id":66172,"href":"https:\/\/www.waseda.jp\/inst\/research\/wp-json\/wp\/v2\/posts\/60079\/revisions\/66172"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.waseda.jp\/inst\/research\/wp-json\/wp\/v2\/media\/66171"}],"wp:attachment":[{"href":"https:\/\/www.waseda.jp\/inst\/research\/wp-json\/wp\/v2\/media?parent=60079"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.waseda.jp\/inst\/research\/wp-json\/wp\/v2\/categories?post=60079"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.waseda.jp\/inst\/research\/wp-json\/wp\/v2\/tags?post=60079"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}