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Bir dinozor fosilinin \u00f6n\u00fcnde durdu\u011funuzda ondan neler \u00f6\u011frenebilece\u011finizi hi\u00e7 d\u00fc\u015f\u00fcnd\u00fcn\u00fcz m\u00fc? Dahas\u0131, fosillerin karadan \u00e7ok sulak alanlarda olu\u015ftu\u011funu ve bu y\u00fczden \u00e7o\u011funun eski g\u00f6l, nehir ya da deniz yataklar\u0131nda bulundu\u011funu biliyor muydunuz? Milyonlarca y\u0131l \u00f6ncesinden bize ya\u015fam\u0131n s\u0131rlar\u0131n\u0131 ta\u015f\u0131yan fosillerle ilgili en ilgi \u00e7ekici detaylar\u0131 yaz\u0131m\u0131zda listeledik.<\/p>\n
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\u201cFosil\u201d kelimesi, Latincede \u201ckaz\u0131lm\u0131\u015f\u201d anlam\u0131na gelen \u201cfossus\u201d s\u00f6zc\u00fc\u011f\u00fcnden t\u00fcremi\u015ftir. Bu ad, fosillerin kaya, toprak ya da kehribar i\u00e7inde korunmu\u015f ge\u00e7mi\u015f ya\u015fam kal\u0131nt\u0131lar\u0131 oldu\u011funu ifade eder. \u00c7o\u011fu zaman bu kal\u0131nt\u0131lar, bir organizman\u0131n kemik veya kabuk gibi sert k\u0131s\u0131mlar\u0131ndan olu\u015fur. Ancak nadir durumlarda yumu\u015fak dokular\u0131n da fosille\u015fti\u011fi g\u00f6r\u00fclm\u00fc\u015ft\u00fcr. Korunma bi\u00e7imleri \u00e7e\u015fitlilik g\u00f6sterdi\u011fi i\u00e7in bilim insanlar\u0131 farkl\u0131 fosil t\u00fcrleri tan\u0131mlar.<\/p>\n
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\u00c7o\u011fu fosil, bir bitki veya hayvan\u0131n ya\u015fam\u0131n\u0131 yitirdikten sonra h\u0131zla \u00e7amur, kum veya volkanik k\u00fcl gibi tortularla kaplan\u0131p g\u00f6m\u00fclmesiyle olu\u015fur. Yumu\u015fak dokular genellikle ayr\u0131\u015f\u0131r, sert kemikler veya kabuklar ise korunur; nadir durumlarda yumu\u015fak dokular da ta\u015fla\u015fabilir. Zamanla \u00fczerine biriken tortular kayaya d\u00f6n\u00fc\u015f\u00fcr ve erozyonla a\u00e7\u0131\u011fa \u00e7\u0131kt\u0131\u011f\u0131nda milyonlarca y\u0131l \u00f6ncesinin canl\u0131lar\u0131 ta\u015flar\u0131n i\u00e7inden bize g\u00f6r\u00fcn\u00fcr.<\/p>\n
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Fosiller, olu\u015fum ve korunma bi\u00e7imlerine g\u00f6re \u00e7e\u015fitlenir: Ta\u015fla\u015fm\u0131\u015f fosiller minerallerin sert dokular\u0131 doldurmas\u0131yla, bask\u0131 fosilleri kal\u0131nt\u0131 bo\u015fluklar\u0131n\u0131 doldurmas\u0131yla, kehribar fosilleri re\u00e7ineye hapsolan canl\u0131larla, iz fosilleri ayak izi veya d\u0131\u015fk\u0131larla, yumu\u015fak doku fosilleri ise \u00f6zel ko\u015fullarda deri ve organlar\u0131n korunmas\u0131yla olu\u015fur. \u00d6rne\u011fin, 40.000 y\u0131ll\u0131k bebek mamut \u201cLyuba\u201d buzda m\u00fckemmel korunmu\u015f bir yumu\u015fak doku fosilidir.<\/p>\n
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Peki, bir dinozor nas\u0131l fosil olur? Dinozor \u00f6ld\u00fc\u011f\u00fcnde etli k\u0131s\u0131mlar\u0131 \u00e7\u00fcr\u00fcr ama sert kemikleri g\u00f6l\u00fcn dibinde kal\u0131r. \u00dczerine tortu birikir ve bu tortular kemikleri korur. Zamanla yer alt\u0131 suyundaki mineraller kemiklerin bo\u015fluklar\u0131n\u0131 doldurur ve kemikler ta\u015fa d\u00f6n\u00fc\u015f\u00fcr; buna permineralizasyon denir. \u00dcstteki tortular s\u0131k\u0131\u015f\u0131p kaya h\u00e2line gelir ve kemikler, erozyonla ortaya \u00e7\u0131kana veya paleontologlar taraf\u0131ndan bulunana kadar kaya i\u00e7inde saklan\u0131r.<\/p>\n
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Paleontologlar, ge\u00e7mi\u015fte ya\u015fam\u0131\u015f hayvan, bitki, mantar, bakteri ve tek h\u00fccreli canl\u0131lar\u0131n fosil ve kal\u0131nt\u0131lar\u0131n\u0131 inceleyen bilim insanlar\u0131d\u0131r. Fosillerin ya\u015f\u0131n\u0131 belirleyerek, ge\u00e7mi\u015f ekosistemler ve ya\u015fam\u0131n d\u00f6n\u00fc\u015f\u00fcm\u00fc hakk\u0131nda bilgi edinirler.<\/p>\n
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Fosil bulmak; s\u0131k\u0131 \u00e7al\u0131\u015fma, \u015fans ve do\u011fru yerleri bilmenin birle\u015fimidir! \u00c7o\u011fu fosil k\u0131smen a\u00e7\u0131\u011fa \u00e7\u0131kar ve laboratuvara g\u00f6t\u00fcr\u00fclmeden \u00f6nce tek tek veya blok h\u00e2linde \u00f6zenle \u00e7\u0131kar\u0131l\u0131r. Arka plan ara\u015ft\u0131rmalar\u0131, bilim insanlar\u0131n\u0131n hangi tortul kaya\u00e7lar\u0131 kazaca\u011f\u0131n\u0131 belirlemesine yard\u0131mc\u0131 olur; ancak bir\u00e7ok fosil, do\u011fa y\u00fcr\u00fcy\u00fc\u015f\u00e7\u00fcleri, in\u015faat i\u015f\u00e7ileri, madenciler veya \u00e7ift\u00e7iler taraf\u0131ndan tesad\u00fcfen de ke\u015ffedilebilir.<\/p>\n
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\u00c7o\u011fu fosil sahada yaln\u0131zca k\u0131smen a\u00e7\u0131\u011fa \u00e7\u0131kar. Tek tek veya blok h\u00e2linde \u00e7\u0131kar\u0131l\u0131r ve laboratuvara ta\u015f\u0131nmadan \u00f6nce genellikle al\u00e7\u0131 k\u0131l\u0131flarla korunur. Saha \u00e7al\u0131\u015fmas\u0131, fosillerin bulundu\u011fu ba\u011flam\u0131 korumak i\u00e7in haritalama, foto\u011fraflama, kay\u0131t alt\u0131na alma ve kaya \u00f6rnekleri toplama gibi ad\u0131mlar\u0131 i\u00e7erir. B\u00f6ylece kal\u0131nt\u0131lar\u0131n nas\u0131l ve ne zaman g\u00f6m\u00fcld\u00fc\u011f\u00fc, hangi ekosistemlerde ya\u015fad\u0131\u011f\u0131 ve ayn\u0131 d\u00f6nemde hangi bitki ve hayvanlarla bir arada bulundu\u011fu anla\u015f\u0131l\u0131r.<\/p>\n
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Bir dinozorun ne zaman ya\u015fad\u0131\u011f\u0131n\u0131 bilmek, onu biyolojik soya\u011fac\u0131na yerle\u015ftirmemizi sa\u011flar ve t\u00fcrlerin ne zaman ortaya \u00e7\u0131k\u0131p t\u00fckendi\u011fini anlamam\u0131za yard\u0131mc\u0131 olur. Fosillerin, mutlak tarihleme y\u00f6ntemleriyle ger\u00e7ek ya\u015flar\u0131 y\u0131l olarak belirlenir; g\u00f6receli tarihleme y\u00f6ntemleri ise hangi fosilin di\u011ferinden daha eski veya gen\u00e7 oldu\u011funu g\u00f6sterir. Genellikle birka\u00e7 y\u00f6ntem bir arada kullan\u0131l\u0131r ve sonu\u00e7lar titizlikle do\u011frulan\u0131r.<\/p>\n
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[vc_row][vc_column][vc_column_text] Bir dinozor fosilinin \u00f6n\u00fcnde durdu\u011funuzda ondan neler \u00f6\u011frenebilece\u011finizi hi\u00e7 d\u00fc\u015f\u00fcnd\u00fcn\u00fcz m\u00fc? Dahas\u0131, fosillerin karadan \u00e7ok sulak alanlarda olu\u015ftu\u011funu ve bu y\u00fczden \u00e7o\u011funun eski g\u00f6l, nehir ya da deniz yataklar\u0131nda bulundu\u011funu biliyor muydunuz? Milyonlarca y\u0131l \u00f6ncesinden bize ya\u015fam\u0131n s\u0131rlar\u0131n\u0131 ta\u015f\u0131yan fosillerle ilgili en ilgi \u00e7ekici detaylar\u0131 yaz\u0131m\u0131zda listeledik. [\/vc_column_text][\/vc_column][\/vc_row][vc_row el_class=”innerItemContainer”][vc_column][eltd_section_title alignment=”left” title=”1#” title_font_size=”13″][vc_single_image image=”31771″ img_size=”full” […]<\/p>\n","protected":false},"author":1,"featured_media":31770,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[10],"tags":[427,4075,4076,4077,4078,4079,783],"class_list":["post-31769","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-yasam","tag-bitki","tag-bocek","tag-dinozor","tag-fosil","tag-fosiller","tag-fossus","tag-hayvan"],"_links":{"self":[{"href":"https:\/\/soms.invekor.net\/index.php?rest_route=\/wp\/v2\/posts\/31769","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/soms.invekor.net\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/soms.invekor.net\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/soms.invekor.net\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/soms.invekor.net\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=31769"}],"version-history":[{"count":0,"href":"https:\/\/soms.invekor.net\/index.php?rest_route=\/wp\/v2\/posts\/31769\/revisions"}],"wp:attachment":[{"href":"https:\/\/soms.invekor.net\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=31769"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/soms.invekor.net\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=31769"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/soms.invekor.net\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=31769"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}