{"id":2465,"date":"2021-01-17T09:36:34","date_gmt":"2021-01-17T09:36:34","guid":{"rendered":"https:\/\/www.tasmarket.com\/haber\/?p=2465"},"modified":"2025-03-05T01:44:40","modified_gmt":"2025-03-04T22:44:40","slug":"porfir-dogaltas","status":"publish","type":"post","link":"https:\/\/www.tasmarket.com\/blog\/porfir-dogaltas\/","title":{"rendered":"Porfir Do\u011falta\u015f"},"content":{"rendered":"<p><strong>Riyolit porfir<\/strong><\/p>\n<p>Riyolit porfir, ince taneli ( afanitik dokulu ), beyaz, a\u00e7\u0131k gri, pembe renkli magmatik kaya\u00e7t\u0131r. Fenokristaller hari\u00e7, tan\u0131mlanabilmesi i\u00e7in mineralleri olduk\u00e7a ufak tanelidir. \u00d6rneklerde, ortoz mineralleri fenokristaller halinde bulunur. Renk, bir \u00e7ok durumda, kayac\u0131n tan\u0131mlanmas\u0131nda zay\u0131f bir g\u00f6stergedir. Bu tan\u0131mlama, \u00f6rnek ilk g\u00f6r\u00fcld\u00fc\u011f\u00fc andaki ilk tahminde kullan\u0131labilir. Bununla beraber, ortoz fenokristalleri kayac\u0131 felsik kategoriye (s\u0131ralamaya) sokar. Kuvars oran\u0131n\u0131 bilmeden, faneritik dokulu kayac\u0131n siyenit veya alkali granit oldu\u011fu s\u00f6ylenemeyecektir.<\/p>\n<p>Trakitik kaya\u00e7lar genellikle porfiritiktir. Bu kaya\u00e7lar, trakit porfir olarak adland\u0131r\u0131l\u0131r. Kaya\u00e7, bir veya iki cm. uzunlu\u011funda tabuler \u015fekilli b\u00fcy\u00fck sanidin kristalleri ince taneli hamur maddesi i\u00e7inde yer al\u0131r. Kayac\u0131n bu g\u00f6r\u00fcn\u00fc\u015f\u00fc m\u00fckemmeldir. Bir \u00e7ok trakit i\u00e7inde, fenokristaller \u00e7ok az ve k\u00fc\u00e7\u00fckt\u00fcr. Hamur maddesi olduk\u00e7a tanelidir.<\/p>\n<p>Ferro-magnezyen minerallere ( hornblend ve k\u0131smende biyotit ) b\u00fcy\u00fck-uzun kristaller halinde nadiren rastlan\u0131r. Genellikle, bu kaya\u00e7lar\u0131n el \u00f6rneklerinde g\u00f6ze \u00e7arpmaz.<\/p>\n<p>Uzun, dar paralel \u00e7ubuklar halinde sanidin kristallerini i\u00e7eren trakitik matriks ile, k\u00fc\u00e7\u00fck, karemsi veya \u00fc\u00e7gen prizmalar \u015feklinde ayni mineralleri i\u00e7eren ortopirik matriks olmak \u00fczere iki tip matriks ( hamur maddesi ) kabul edilir.<\/p>\n<p><strong>Andezit porfir<\/strong><\/p>\n<p>Andezit porfir, Na\/Ca plajiyoklas, amfibol ve biyotit gibi mineralleri i\u00e7erir. Amfibol fenokrisralleri hari\u00e7, kayac\u0131n i\u00e7indeki mineraller tan\u0131mlanabilmesi i\u00e7in olduk\u00e7a ufakt\u0131r. Andezit porfir, ince taneli \u2013 afanitik &#8211; dokuda, orta renklerde (mezokrat = COL % 35-65) bir magmatik kaya\u00e7t\u0131r.<\/p>\n<p><strong>Bazalt porfir<\/strong><\/p>\n<p><a href=\"https:\/\/www.tasmarket.com\/tamburlu-bazalt-cakil-tasi-130\">Bazalt<\/a> porfir, mafik magmatik kaya\u00e7t\u0131r. Kayac\u0131n afanitik dokulu k\u0131sm\u0131 tipik olarak koyu renkli iken, b\u00fcy\u00fck plajiyoklas fenokristallerinin topland\u0131\u011f\u0131 k isimlar ise, a\u00e7\u0131k renkli g\u00f6r\u00fcn\u00fcm sunar. Bazalt porfir, esas olarak, Ca plajiyoklas, piroksen ve biraz olivin i\u00e7erir.<\/p>\n<p>Kalsiyumlu feldspat fenokristalleri hari\u00e7 kayac\u0131n bile\u015fimindeki mineraller tan\u0131mlanabilmeleri i\u00e7in olduk\u00e7a ufakt\u0131r. Fenokristaller, bu kaya\u00e7lar\u0131n iki iki a\u015famada so\u011fudu\u011funu g\u00f6sterir.<\/p>\n<p>Magman\u0131n, yery\u00fczeyinin alt\u0131nda<\/p>\n<p>plajiyoklas kristallerinin \u015fekillenmesi i\u00e7in bazen yava\u015f so\u011fuma ger\u00e7ekle\u015fir ve sonra kalan k\u0131s\u0131m y\u00fczeye do\u011fru \u00e7\u0131k\u0131p h\u0131zl\u0131 so\u011fuma sonucu di\u011fer k\u0131s\u0131m kat\u0131la\u015f\u0131r. Fakat, bu k\u0131s\u0131m, daha \u00f6nce olu\u015fan k\u0131s\u0131mdan daha \u00e7ok ince tanelidir. Bu yap\u0131, kaya\u00e7lar\u0131n y\u00fczeyde olu\u015fmad\u0131\u011f\u0131n\u0131, dayk, sil ve lakolit \u015feklinde olu\u015fabilece\u011fini g\u00f6sterir ( i\u015faret eder ).<\/p>\n<p>Kaynak: Do\u011falta\u015f Atlas\u0131<\/p>\n","protected":false},"excerpt":{"rendered":"<p>T\u00fcrk porfiri veya k\u0131rm\u0131z\u0131 porfir do\u011fal ta\u015f \u00e7e\u015fitleri ile ilgili makale.<\/p>\n","protected":false},"author":1,"featured_media":2466,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[36],"tags":[],"class_list":["post-2465","post","type-post","status-publish","format-standard","has-post-thumbnail","category-dogal-taslar"],"_links":{"self":[{"href":"https:\/\/www.tasmarket.com\/blog\/wp-json\/wp\/v2\/posts\/2465","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.tasmarket.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.tasmarket.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.tasmarket.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.tasmarket.com\/blog\/wp-json\/wp\/v2\/comments?post=2465"}],"version-history":[{"count":0,"href":"https:\/\/www.tasmarket.com\/blog\/wp-json\/wp\/v2\/posts\/2465\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.tasmarket.com\/blog\/wp-json\/wp\/v2\/media\/2466"}],"wp:attachment":[{"href":"https:\/\/www.tasmarket.com\/blog\/wp-json\/wp\/v2\/media?parent=2465"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.tasmarket.com\/blog\/wp-json\/wp\/v2\/categories?post=2465"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.tasmarket.com\/blog\/wp-json\/wp\/v2\/tags?post=2465"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}