\u5e95\u68f2\u6027\u6709\u5b54\u87f2\u6bbc\u9ad4\u7684δ13C\u6578\u503c\u986f\u793a\u73fe\u4eca\u6df1\u5c64\u6d77\u6c34\u7684\u6700\u5c0f\u503c(-0.2&;#8240;)\u65bc\u5317\u592a\u5e73\u6d0b\u9644\u8fd1\u5730\u5340\uff0c\u4f46\u5728\u4e0a\u6b21\u51b0\u76db\u671f(Last Glacial Maximum, LGM)\u6642\uff0c\u5168\u7403\u5927\u6d0b\u7684\u6700\u5c0f\u503c(-0.9&;#8240;)\u537b\u51fa\u73fe\u5728\u5357\u5927\u897f\u6d0b\u6df1\u6c34\u5c64\u3002\u524d\u4eba\u7814\u7a76\u8a8d\u70ba\u4fc2\u56e0\u70ba\u51b0\u671f\u6642\u5317\u592a\u5e73\u6d0b\u6709\u984d\u5916\u6ce8\u5165\u7684\u4f4e\u71df\u990a\u9e7d\u6c34\u5718\u6240\u81f4 [Curry et al., 1988; Duplessy et al., 1988; Herguera et al., 1992; Keigwin, 1998]\uff0c\u4f46Toggweiler et al. [2006]\u5247\u8a8d\u70ba\u5728\u51b0\u671f\u6642\u592a\u5e73\u6d0b\u6df1\u5c64\u6d77\u6c34\u4e3b\u8981\u4ecd\u53d7\u5317\u5927\u897f\u6d0b\u6e90\u5340\u4f86\u7684\u6c34\u5718\u5f71\u97ff\uff0c\u5317\u592a\u5e73\u6d0b\u6ce8\u5165\u7684\u6c34\u5718\u5f71\u97ff\u6709\u9650\u3002\u591a\u5e74\u4f86\u5c0d\u65bc\u5f71\u97ff\u5927\u6d0b\u6df1\u5c64\u6c34\u7684δ13C\u6700\u5c0f\u503c\u9077\u79fb\u7684\u56e0\u7d20\u773e\u8aaa\u7d1b\u7d1c\u3002<\/p>\n
\u5728\u897f\u5317\u592a\u5e73\u6d0b\u5730\u5340\uff0c\u6709\u5b54\u87f2\u78b3\u9178\u9223\u6bbc\u9ad4\u4e0d\u6613\u826f\u597d\u4fdd\u5b58\uff0c\u947d\u4e95\u6709\u9650\uff0c\u8fc4\u4eca\u5c0d\u65bc\u53e4\u6df1\u90e8\u6d0b\u6d41\u8b8a\u5316\u7684\u76f8\u95dc\u7814\u7a76\u5e74\u9650\u4e0d\u8d85\u904e3.5\u842c\u5e74\u524d\uff0c\u96d6\u5728Shatsky Rise\u6d77\u5e95\u9ad8\u539f\u5730\u5340\u6709\u90e8\u5206\u5ca9\u82af\u6709\u5b54\u87f2\u6c27\u78b3\u540c\u4f4d\u7d20\u6578\u64da\u53ef\u9054\u7d0418\u842c\u5e74\u524d\uff0c\u4f46\u5176\u8a0e\u8ad6\u4ecd\u8457\u91cd\u5728\u8868\u5c64\u9ed1\u6f6e\u53ca\u89aa\u6f6e\u6c34\u5718\u7684\u8b8a\u5316\uff0c\u8f03\u5c11\u8ad6\u53ca\u6df1\u5c64\u6c34\u5718( > 2000\u516c\u5c3a)\u3002\u672c\u7814\u7a76\u671f\u671b\u900f\u904e\u4f4d\u65bc\u897f\u5317\u592a\u5e73\u6d0b\u7684\u6d77\u5e95\u9ad8\u539fShatsky Rise\u6240\u947d\u53d6\u7684\u5ca9\u82afODP 1210A(32o13’N, 158o15’E\uff1b\u6c34\u6df12573.6 m)\uff0c\u85c9\u7531\u5206\u6790\u5ca9\u82af\u4e2d\u5e95\u68f2\u6027\u6709\u5b54\u87f2Uvigerina peregrina (300-425 \u03bcm)\u6c27\u78b3\u540c\u4f4d\u7d20\u6578\u503c\uff0c\u8a0e\u8ad618\u842c\u5e74\u4ee5\u4f86\u897f\u5317\u592a\u5e73\u6d0b\u6df1\u5c64\u6d77\u6c34\u7684\u8b8a\u5316\u3002<\/p>\n
\u5f9e\u5e95\u68f2\u6027\u6709\u5b54\u87f2\u7684\u6c27\u78b3\u540c\u4f4d\u7d20\u7d50\u679c\u6bd4\u8f03\u4e2d\u5f97\u77e5Shatsky Rise\u6d77\u5e95\u9ad8\u539f\u4e0a\u7684\u4e09\u6839\u5ca9\u82afODP 1210A\u3001NGC102\u3001S-2 (\u5ca9\u82af\u6c34\u6df1\u5206\u5225\u7d04\u70ba2574\u516c\u5c3a\u30012612\u516c\u5c3a\u548c3017\u516c\u5c3a) \uff0c\u5728\u904e\u53bb18\u842c\u5e74\u4f86\u5747\u4f4d\u65bc\u76f8\u540c\u7684\u6c34\u5718\u4e2d\u2500\u2500\u7e5e\u6975\u6df1\u5c64\u6c34(Circumpolar Deep Water, CDW)\u3002\u9032\u4e00\u6b65\u5c07\u6240\u6574\u7406\u7684\u516b\u6839\u897f\u592a\u5e73\u6d0b\u5ca9\u82af\u5e95\u68f2\u6027\u6709\u5b54\u87f2δ13C\u6578\u503c\u76f8\u6bd4\u8f03\uff0c\u53ef\u77e5\u897f\u592a\u5e73\u6d0b\u5730\u5340\u7d042500\u516c\u5c3a\u4ee5\u4e0b\u7684\u6df1\u5c64\u6d77\u6c34\uff0c\u5728\u904e\u53bb18\u842c\u5e74\u4f86\u51b0\u671f-\u9593\u51b0\u671f\u4e3b\u8981\u7686\u53d7\u5f9e\u5927\u897f\u6d0b\u800c\u4f86\u7684\u7e5e\u6975\u6df1\u5c64\u6c34\uff08CDW\uff09\u5f71\u97ff\uff0c\u8a72\u6c34\u5718\u6ce8\u5165\u592a\u5e73\u6d0b\u6d77\u76c6\u5f8c\u6210\u70ba\u6df1\u5c64\u897f\u90e8\u908a\u754c\u6d41(Deep Western Boundary Current, DWBC)\u5f80\u5317\u904b\u8f38\uff1b\u5f9e\u897f\u5357\u592a\u5e73\u6d0b\u8207\u897f\u5317\u592a\u5e73\u6d0b\u5ca9\u82af\u7684\u78b3\u540c\u4f4d\u7d20\u6578\u64da\u6bd4\u8f03\u4e2d\u53ef\u898b\uff0c\u5728\u51b0\u671f\u6642\u897f\u5317\u592a\u5e73\u6d0b\u7684δ13C\u6578\u503c\u4e26\u6c92\u6709\u9ad8\u65bc\u897f\u5357\u592a\u5e73\u6d0b\u7684δ13C\u6578\u503c\uff0c\u986f\u793a\u51fa\u51b0\u671f\u66422500\u516c\u5c3a\u4ee5\u4e0b\u7684\u6df1\u5c64\u6d77\u6c34\u4e26\u6c92\u6709\u5982\u524d\u4eba\u7814\u7a76\u4e2d\u6240\u8aaa\u7684\u53d7\u5230\u51b0\u671f\u5317\u592a\u5e73\u6d0b\u4e2d\u5c64\u6c34\u7684\u5f71\u97ff\u3002<\/p>\n
\u672c\u7814\u7a76\u8a8d\u70ba\u897f\u592a\u5e73\u6d0b\u4f4d\u65bc2500-4000\u516c\u5c3a\u6df1\u5c64\u6d77\u6c34\u7684δ13C\u6578\u503c\u4fc2\u753160%\u7684NADW\u820740%\u7684AABW\u6c34\u5718\u6df7\u5408\uff0c\u4e26\u52a0\u4e0a\u518d\u7926\u5316\u5e38\u6578\u7684\u6d77\u6c34\u8a0a\u865f[Lisiecki, 2010]\u800c\u6210\uff0c\u6c34\u5718\u5f9e\u897f\u5357\u5f80\u897f\u5317\u592a\u5e73\u6d0b\u8f38\u9001\u904e\u7a0b\u4e2d\uff0c\u6709\u6a5f\u7269\u4e0d\u65b7\u5206\u89e3\uff0c\u6545\u9808\u52a0\u4e0a\u78b3\u7684\u518d\u7926\u5316\u5e38\u6578\uff0cδ13C\u6578\u503c\u6703\u9010\u6f38\u8b8a\u8ca0\uff0c\u897f\u8d64\u9053\u53ca\u897f\u5317\u592a\u5e73\u6d0b\u5730\u5340\u7684\u518d\u7926\u5316\u5e38\u6578\u7d04\u70ba-0.5&;#8240;\uff0c\u800c\u897f\u5357\u592a\u5e73\u6d0b\u5730\u5340\u7684\u518d\u7926\u5316\u5e38\u6578\u70ba-0.2&;#8240;\uff1b\u53e6\u4e00\u65b9\u9762\uff0c\u51b0\u671f\u6642\u5f9e\u897f\u5357\u592a\u5e73\u6d0b\u6ce8\u5165\u7684\u6df1\u5c64\u6d77\u6c34\u901f\u5ea6\u8f03\u5feb\uff0c\u4f7f\u5f97\u897f\u5357\u592a\u5e73\u6d0b\u8207\u897f\u8d64\u9053\/\u897f\u5317\u592a\u5e73\u6d0b\u5730\u5340\u7684δ13C\u6578\u503c\u5dee\u7570\u8f03\u9593\u51b0\u671f\u6642\u4f86\u5f97\u5c0f\u3002<\/p>\n
\u7e3d\u7d50\u4f86\u8aaa\uff0c\u672c\u7814\u7a76\u8a8d\u70ba\u904e\u53bb18\u842c\u5e74\u4ee5\u4f86\uff0c\u592a\u5e73\u6d0b\u6df1\u5c64\u6d77\u6c34\u4e3b\u8981\u662f\u53d7\u5927\u897f\u6d0b\u4f86\u6e90\u6c34\u5718\u7684\u5f71\u97ff\uff0c\u6545\u53ef\u6392\u9664\u51b0\u671f\u6642\u5317\u592a\u5e73\u6d0b\u56e0\u6709\u984d\u5916\u6ce8\u5165\u7684\u4f4e\u71df\u990a\u9e7d\u6c34\u5718\uff0c\u4f7f\u5f97\u5927\u6d0b\u6df1\u5c64\u6c34\u7684δ13C\u6700\u5c0f\u503c\u9077\u79fb\u7684\u56e0\u7d20\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
\u5e95\u68f2\u6027\u6709\u5b54\u87f2\u6bbc\u9ad4\u7684δ13C\u6578\u503c\u986f\u793a\u73fe\u4eca\u6df1\u5c64\u6d77\u6c34\u7684\u6700\u5c0f\u503c(-0.2&;#8240;)\u65bc\u5317\u592a\u5e73 […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_uag_custom_page_level_css":"","site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[15,14],"tags":[],"class_list":["post-2827","post","type-post","status-publish","format-standard","hentry","category-15","category-14"],"uagb_featured_image_src":{"full":false,"thumbnail":false,"medium":false,"medium_large":false,"large":false,"1536x1536":false,"2048x2048":false,"mailpoet_newsletter_max":false},"uagb_author_info":{"display_name":"administrator","author_link":"https:\/\/etdicwp2025.etdic.org.tw\/etdic\/author\/wayne\/"},"uagb_comment_info":0,"uagb_excerpt":"\u5e95\u68f2\u6027\u6709\u5b54\u87f2\u6bbc\u9ad4\u7684δ13C\u6578\u503c\u986f\u793a\u73fe\u4eca\u6df1\u5c64\u6d77\u6c34\u7684\u6700\u5c0f\u503c(-0.2&;#8240;)\u65bc\u5317\u592a\u5e73...","_links":{"self":[{"href":"https:\/\/etdicwp2025.etdic.org.tw\/etdic\/wp-json\/wp\/v2\/posts\/2827","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/etdicwp2025.etdic.org.tw\/etdic\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/etdicwp2025.etdic.org.tw\/etdic\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/etdicwp2025.etdic.org.tw\/etdic\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/etdicwp2025.etdic.org.tw\/etdic\/wp-json\/wp\/v2\/comments?post=2827"}],"version-history":[{"count":0,"href":"https:\/\/etdicwp2025.etdic.org.tw\/etdic\/wp-json\/wp\/v2\/posts\/2827\/revisions"}],"wp:attachment":[{"href":"https:\/\/etdicwp2025.etdic.org.tw\/etdic\/wp-json\/wp\/v2\/media?parent=2827"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/etdicwp2025.etdic.org.tw\/etdic\/wp-json\/wp\/v2\/categories?post=2827"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/etdicwp2025.etdic.org.tw\/etdic\/wp-json\/wp\/v2\/tags?post=2827"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}