FOS\u0130LLER <\/p>\n
Fosil milyonlarca y\u0131l \u00f6nce jeolojik zamanlar\u0131n \u00e7e\u015fitli d\u00f6nemlerinde birbirinden farkl\u0131 ortamlarda ya\u015fam\u0131\u015f canl\u0131lar\u0131n \u00f6ld\u00fckten sonra ge\u00e7irdileri fosille\u015fme s\u00fcreci sonras\u0131nda bulunduklar\u0131 ortam\u0131n \u00e7\u00f6kelleri i\u00e7indeki ta\u015fla\u015fm\u0131\u015f kal\u0131nt\u0131lar\u0131d\u0131r.
\nFosil kelimesi Alman doktor ve maden m\u00fchendisi Georgius Agricola’n\u0131n 1546 da yay\u0131nlad\u0131\u011f\u0131 de Natura Fossilium adl\u0131 eserindetopraktan \u00e7\u0131kar\u0131lan nesneanlam\u0131nda ilk defa kullan\u0131lm\u0131\u015ft\u0131r.
\nCanl\u0131lar\u0131n \u00f6ld\u00fckten sonra fosille\u015finceye\/ta\u015fla\u015f\u0131ncaya kadar ge\u00e7en s\u00fcre\u00e7 fosille\u015fmedir.
\nBunun i\u00e7in canl\u0131n\u0131n \u00f6l\u00fcm\u00fcnden sonra oldu\u011funca \u00e7abuk bulundu\u011fu ortam\u0131n i\u00e7ine g\u00f6m\u00fclmesi ve d\u0131\u015f etkenlerden s\u00fcratle korunmas\u0131 ile zaman fakt\u00f6r\u00fc, fosil olabilmenin di\u011fer bir deyi\u015fle fosille\u015fmenin \u00f6nemli ko\u015fullar\u0131d\u0131r.
\nFosille\u015fme ortamlar\u0131: batakl\u0131k, buz, \u00e7am re\u00e7inesi, asfalt ile deniz ve g\u00f6ller gibi sulu ortamlar bu olay\u0131n en iyi ger\u00e7ekle\u015fti\u011fi yerlerdir. \u00d6len her canl\u0131 fosille\u015fir diye bir do\u011fa kural\u0131 yoktur. Fosil olma bir \u015fans oldu\u011fu gibi, onu bulmak da bilgiye ve \u015fansa ba\u011fl\u0131d\u0131r.
\nKarakteristik fosil: Kitlesel biyolojik yokolu\u015flar ya da ya\u015famlar\u0131n\u0131n son noktas\u0131na gelip de D\u00fcnya hayat\u0131ndan t\u00fcm soylar\u0131 ile \u00e7ekilen canl\u0131lar\u0131n di\u011fer bir deyi\u015fle art\u0131k ya\u015famayanlar\u0131n kal\u0131nt\u0131lar\u0131d\u0131r. Di\u011ferlerine g\u00f6re bilimsel de\u011ferleri \u00e7ok fazlad\u0131r. Canl\u0131n\u0131n ya\u015fam\u0131 ne kadar k\u0131sa olursa fosilinin de\u011feride o kadar fazla olur. \u00d6rne\u011fin Trilobit denilen eklem bacakl\u0131lar\u0131n Birinci zaman\u0131n (Paleozoik) ba\u015flang\u0131c\u0131 Kambriyen’de denizlerin s\u0131\u011f kesimlerinde k\u0131sa s\u00fcre ile ya\u015fam\u0131\u015f bir \u00e7ok t\u00fcr\u00fc vard\u0131r. Dinozorlar 65 milyon y\u0131l \u00f6nce yok olmu\u015flard\u0131r. Bu nedenle bu fosiller art\u0131k karakteristik fosillerdir.
\nFosiller sadece \u00e7\u00f6kel kayalar\u0131n i\u00e7inde bulunur ve i\u00e7inde bulundu\u011fu kayan\u0131n olu\u015fum ortam\u0131 ve ya\u015f\u0131n\u0131 belirlememize yard\u0131m eder. Magmatik ve Metamorfik kayalar\u0131nda fosil bulunmaz.
\nOmurgas\u0131z hayvan fosilleri tek h\u00fccreliler PROT\u0130ATA (Protozoa) ve \u00e7ok h\u00fccreliler METAZOA olmak \u00fczere iki gruba ayr\u0131l\u0131rlar.
\nTek h\u00fccreliler: V\u00fccutlar\u0131 bir veya birka\u00e7 basit h\u00fccreden yap\u0131lm\u0131\u015f olan en ilkel canl\u0131lard\u0131r. Bunlar \u00e7o\u011funlukla g\u00f6zle g\u00f6r\u00fclemez mikroskopla incelenebilirler. Hayvansal k\u00f6keli olan tek h\u00fccrelilerin en \u00f6nemlileri; Diyatomeler, Dinoflagellatlar, Foraminiferler ve Radiolaria’lard\u0131r. Bunlar\u0131n aras\u0131nda Foraminifera en \u00f6nemli gruptur.
\n\u00c7ok h\u00fccreliler:Mollusca\/Yumu\u015fak\u00e7alar: Kambriyen’den (540my.) beri ya\u015fayan metazoanlar \u00e7ok h\u00fccrelilerin en geni\u015f grubudur. Yanal simetri g\u00f6steren v\u00fccutlar\u0131 yumu\u015fak halkas\u0131z\/segmentsiz olup kalkerli bir kabuk ile \u00f6rt\u00fcl\u00fcd\u00fcr. denizlerde, g\u00f6llerde, batakl\u0131klarda, nehirlerde pek az\u0131 da karada ya\u015far. Bu b\u00fcy\u00fck grubun i\u00e7inde Bivalvia (iki kabuklu), Gastropoda (kar\u0131ndan bacakl\u0131lar) ve Cephalopoda (kafadan bacakl\u0131lar) bulunur. \u00d6rne\u011fin; Mytilus (midye), Ostrea (istiridye) Bivalvia’n\u0131n, Octopus (ahtapot), Sepia (m\u00fcrekkep bal\u0131\u011f\u0131) Cephalopoda’n\u0131n, Helix (kara salyangozu) ise Gastropoda’n\u0131n bug\u00fcn ya\u015fayan temsilcileridir. <\/p>\n","protected":false},"excerpt":{"rendered":"
FOS\u0130LLER Fosil milyonlarca y\u0131l \u00f6nce jeolojik zamanlar\u0131n \u00e7e\u015fitli d\u00f6nemlerinde birbirinden farkl\u0131 ortamlarda ya\u015fam\u0131\u015f canl\u0131lar\u0131n \u00f6ld\u00fckten sonra ge\u00e7irdileri fosille\u015fme s\u00fcreci sonras\u0131nda bulunduklar\u0131 ortam\u0131n \u00e7\u00f6kelleri i\u00e7indeki ta\u015fla\u015fm\u0131\u015f kal\u0131nt\u0131lar\u0131d\u0131r. Fosil kelimesi Alman doktor ve maden m\u00fchendisi Georgius Agricola’n\u0131n 1546 da yay\u0131nlad\u0131\u011f\u0131 de Natura Fossilium adl\u0131 eserindetopraktan \u00e7\u0131kar\u0131lan nesneanlam\u0131nda ilk defa kullan\u0131lm\u0131\u015ft\u0131r. Canl\u0131lar\u0131n \u00f6ld\u00fckten sonra fosille\u015finceye\/ta\u015fla\u015f\u0131ncaya kadar ge\u00e7en s\u00fcre\u00e7 …<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1407,1403],"tags":[2871,2864,2867,2872,2861,2863,2870,2862,2868,2866,2869,2865],"class_list":["post-961","post","type-post","status-publish","format-standard","hentry","category-fen-ve-teknoloji-odevleri","category-odevler","tag-ahtapot","tag-biyolojik","tag-cephalopoda","tag-diyatomeler","tag-fosiller","tag-fosillesme","tag-istiridye","tag-jeolojik-zamanlar","tag-kafadan-bacaklilar","tag-karindan-bacaklilar","tag-midye","tag-protozoa"],"_links":{"self":[{"href":"https:\/\/www.islamidavet.com\/kutuphane\/wp-json\/wp\/v2\/posts\/961","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.islamidavet.com\/kutuphane\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.islamidavet.com\/kutuphane\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.islamidavet.com\/kutuphane\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.islamidavet.com\/kutuphane\/wp-json\/wp\/v2\/comments?post=961"}],"version-history":[{"count":0,"href":"https:\/\/www.islamidavet.com\/kutuphane\/wp-json\/wp\/v2\/posts\/961\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.islamidavet.com\/kutuphane\/wp-json\/wp\/v2\/media?parent=961"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.islamidavet.com\/kutuphane\/wp-json\/wp\/v2\/categories?post=961"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.islamidavet.com\/kutuphane\/wp-json\/wp\/v2\/tags?post=961"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}