Plasti\u011fin bizlerle ge\u00e7irdi\u011fi s\u00fcre sand\u0131\u011f\u0131m\u0131zdan uzun olabilir. Bu s\u00fcreye bir de at\u0131k sahalar\u0131nda ki t\u0131kanma eklenince baz\u0131 plastik materyal ta\u015fa d\u00f6n\u00fc\u015f\u00fcyor. Biliminsanlar\u0131na g\u00f6re Hawai sahillerinde ta\u015fla kaplanm\u0131\u015f plastik, volkanik ta\u015f, sahil kumu, deniz kabuklar\u0131 ve mercan art\u0131klar\u0131 ile olu\u015fmu\u015f yeni bir form g\u00f6r\u00fclmeye ba\u015fland\u0131.<\/p>\n
Pennsylvania \u00dcniversitesi jeofizik b\u00f6l\u00fcm\u00fcnden \u00e7al\u0131\u015fmaya dahil olmayan Douglas Jerolmack\u2019a g\u00f6re bu makale epeyce merak uyand\u0131r\u0131c\u0131 g\u00f6r\u00fcn\u00fcyor. E\u011fer bu formlar kal\u0131c\u0131 olursa, insano\u011flunun d\u00fcnya \u00fczerinde ne zaman tam bir bask\u0131 ve \u201c\u00fcst\u00fcnl\u00fck\u201d kurdu\u011funun ve ne kadar korkutucu miktarda \u00e7\u00f6p\u00fc gerisinde b\u0131rakt\u0131\u011f\u0131n\u0131n da i\u015fareti olacakt\u0131r.<\/p>\n
Bat\u0131 Ontario \u00dcniversitesi\u2019nden jeolog Patricia Corcoran ve o\u015finografik ara\u015ft\u0131rma gemisi Alguita\u2019n\u0131n kaptan\u0131 Charles Moore, Hawai\u2019nin Big Island sahillerinde yapt\u0131klar\u0131 taramalarda bu yeni formdaki ta\u015flara rastlad\u0131lar. Bulduklar\u0131 bu formu, kamp\u00e7\u0131lar ya da bal\u0131k\u00e7\u0131lar taraf\u0131ndan yak\u0131larak eritilmi\u015f plasti\u011fe benzemesinden \u00f6t\u00fcr\u00fc \u201cplastiglomerat\u201dolarak isimlendirdiler. Bulgular\u0131n\u0131 GSA Today<\/em>\u2019de yay\u0131mlad\u0131lar. Corcoran\u2019a g\u00f6re, orman yang\u0131nlar\u0131, lavlar gibi s\u00fcrekli s\u0131cakl\u0131k sa\u011flay\u0131c\u0131lar ve terk edilmi\u015f plastik moloz y\u0131\u011f\u0131nlar\u0131n\u0131n olmamas\u0131na ra\u011fmen, \u201cplastiglomerat\u201d formu olu\u015fturma yatk\u0131nl\u0131\u011f\u0131 fazlacad\u0131r. Plastik eridi\u011finde ta\u015f segmentleri, kum,deniz kabuklar\u0131yla birle\u015fip sa\u011flamla\u015f\u0131r.Ya da plastik b\u00fcy\u00fck\u00e7e ta\u015flar i\u00e7erisine ak\u0131p yar\u0131k ve bo\u015fluklara yerle\u015ferek ta\u015fla birlikte yuvarlan\u0131p bir yerde birikirler.<\/p>\n Bulunan plastik materyalin bir k\u0131sm\u0131 hala tan\u0131nabilir haldeydi (di\u015f f\u0131r\u00e7as\u0131,\u00e7atal,ip ve akl\u0131n\u0131za gelebilecek pek \u00e7ok \u015fey). Plastik bir kere ta\u015f ve deniz canl\u0131lar\u0131 kabuklar\u0131 gibi sa\u011flamla\u015ft\u0131r\u0131c\u0131 materyalle birle\u015firse deniz zeminine do\u011fru batar ve g\u00f6m\u00fclecek \u015fekilde de\u011fi\u015ferek yeni bir jeolojik kay\u0131t alan\u0131 olu\u015fturur.<\/p>\n Corcoran ve ekibi Big Island Kamilo sahilinde yirmi birin \u00fczerinde alanda yapt\u0131klar\u0131 incelemenin hepsinde plastoglimerata rastlad\u0131lar. \u0130nsanlar\u0131n halihaz\u0131rda di\u011fer Hawai adalar\u0131nda da plastiglomerata rastlad\u0131\u011f\u0131n\u0131 s\u00f6yleyen Corcoran, bunun d\u00fcnyan\u0131n t\u00fcm sahillerinde bulunabilece\u011fini tahmin ediyor. Daha \u00f6nce fark edilmemesine ra\u011fmen muhtemelen d\u00fcnya \u00fczerinde d\u00fczenli bir da\u011f\u0131l\u0131m g\u00f6stermekteler.<\/p>\n UK Leicester \u00dcniversitesi\u2019nden paleontolojist Jan Zalasiewicz\u2019e g\u00f6re de bu ke\u015ffin, insan\u0131n do\u011fal s\u00fcre\u00e7ler \u00fczerindeki a\u011f\u0131r etkisinin D\u00fcnya tarihinde Antroposin <\/em>ad\u0131 verilen yeni bir \u00e7a\u011f\u0131n resmen ilan edilmesini gerektirdi\u011fi \u00fczerine tart\u0131\u015fmalara da katk\u0131s\u0131 olacak. Plastik tahmin bile edilemeyecek alanlarda (vah\u015fi ya\u015famda sindirilerek veya deniz taban\u0131nda ) bolca n\u00fcfuz etmi\u015f olarak bulunmaktad\u0131r.1950\u2019den beri \u00fcretilen 6 milyon ton plastikle d\u00fcnya t\u00fcm\u00fcyle paketlenebilir! Zalasiewicz\u2019e g\u00f6re plastiglomeratlarla olu\u015fan fosil kay\u0131tlar\u0131 Antroposin \u00e7a\u011f\u0131n\u0131n ba\u015flad\u0131\u011f\u0131n\u0131n i\u015faretleyecektir.<\/p>\n Bununla birlikte plastik tart\u0131\u015fmas\u0131 daha ne kadar g\u00fcncelli\u011fini s\u00fcrd\u00fcrebilecektir acaba. Jerolmack\u2019a g\u00f6re materyalin uzun s\u00fcre varl\u0131\u011f\u0131n\u0131 s\u00fcrd\u00fcrmesi konusu \u015f\u00fcpheli. Sonu\u00e7ta plastik eriyor, ta\u015flar derinlere indi\u011finde tektonik s\u00fcre\u00e7 ba\u015fl\u0131yor ve g\u00f6m\u00fcl\u00fcyorlar. Cambridge \u00dcniversitesi\u2019nden jeolog Philip Gibbard\u2019a g\u00f6re plastik, geldi\u011fi yer olan petrole d\u00f6n\u00fc\u015febildi\u011finde ger\u00e7ekten i\u015fe yarayacakt\u0131r. Ancak Zalasiewicz ve Corcoran\u2019a g\u00f6re bu t\u00fcm plastikler i\u00e7in m\u00fcmk\u00fcn de\u011fildir. Baz\u0131 materyaller ince bir karbon film bar\u0131nd\u0131rd\u0131\u011f\u0131ndan fosil olu\u015fturmaz. Zalasiewicz\u2019e g\u00f6re plastik \u015fi\u015feleri d\u00fczle\u015ftirerek atmak bu karbonu a\u015f\u0131nd\u0131raca\u011f\u0131ndan fosille\u015fmeye de destek olabilecektir.<\/p>\n","protected":false},"excerpt":{"rendered":" Plasti\u011fin bizlerle ge\u00e7irdi\u011fi s\u00fcre sand\u0131\u011f\u0131m\u0131zdan uzun olabilir. Bu s\u00fcreye bir de at\u0131k sahalar\u0131nda ki t\u0131kanma eklenince baz\u0131 plastik materyal ta\u015fa d\u00f6n\u00fc\u015f\u00fcyor. Biliminsanlar\u0131na g\u00f6re Hawai sahillerinde ta\u015fla kaplanm\u0131\u015f plastik, volkanik ta\u015f, sahil kumu, deniz kabuklar\u0131 ve mercan art\u0131klar\u0131 ile olu\u015fmu\u015f yeni bir form g\u00f6r\u00fclmeye ba\u015fland\u0131. Pennsylvania \u00dcniversitesi jeofizik b\u00f6l\u00fcm\u00fcnden \u00e7al\u0131\u015fmaya dahil olmayan Douglas Jerolmack\u2019a g\u00f6re bu […]<\/p>\n","protected":false},"author":42,"featured_media":25729,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[162,19,217],"tags":[3294,313,491],"class_list":["post-11788","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-125-sayi","category-bilim-gundemi","category-cevre-bilimleri","tag-hawai","tag-jeofizik","tag-plastik"],"acf":[],"aioseo_notices":[],"aioseo_head":"\n\t\t\n\t\n\t\n\t\n\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t