{"id":799,"date":"2023-03-15T14:09:59","date_gmt":"2023-03-15T13:09:59","guid":{"rendered":"http:\/\/www.krantz.unipr.it\/?post_type=product&#038;p=799"},"modified":"2023-03-15T14:19:02","modified_gmt":"2023-03-15T13:19:02","slug":"394-diorite-orbicolare","status":"publish","type":"product","link":"http:\/\/www.krantz.unipr.it\/index.php\/prodotto\/394-diorite-orbicolare\/","title":{"rendered":"394- Diorite orbicolare"},"content":{"rendered":"<p><strong>DESCRIZIONE:<\/strong><\/p>\n<p>Le dioriti sono rocce ignee a grana grossa, di composizione intermedia tra i graniti e un gabbri. Sono costituite principalmente da plagioclasio, anfibolo e pirosseni con quantit\u00e0 ridotte di biotite e quarzo. La variet\u00e0 povere in anfibolo (orneblenda) e pirosseni sono definite leucodioriti. Se si ha la presenza di olivina o altre fasi ferro magnesifere si definiscono tali rocce come ferrodioriti (rocce transizionali ai gabbri). Se invece si ha presenza rilevante di quarzo (&gt;5%) esse vengono definite quarzodioriti (rocce transizionali alle tonaliti). Se infine si ha ortoclasio in % superiore alla media si definiscono monzodioriti o granodioriti. Le dioriti sono rocce associate comunemente a complessi gabbrici e\/o granitici ai quali spesso gradano man mano (si ha infatti spesso il passaggio graduale da rocce gabbriche o granitiche a rocce dioritiche, senza salti netti). In linea generale sono rocce che si formano lungo le zone di subduzione (cordigliera Andina) dove formano ampi batoliti. Una particolare variet\u00e0 orbicolare diorite che si rinviene in Corsica \u00e8 detta <b>corsaite, o corsite.<br \/>\n<\/b><\/p>\n<p><strong>\u00a0<\/strong><strong>VISTA A 360\u00b0<\/strong><\/p>\n<p><iframe loading=\"lazy\" src=\"https:\/\/www.krantz.unipr.it\/360\/394- Diorite orbicolare\/394- Diorite orbicolare.html\" width=\"1100\" height=\"700\"><span style=\"display: inline-block; width: 0px; overflow: hidden; line-height: 0;\" data-mce-type=\"bookmark\" class=\"mce_SELRES_start\">\ufeff<\/span><span style=\"display: inline-block; width: 0px; overflow: hidden; line-height: 0;\" data-mce-type=\"bookmark\" class=\"mce_SELRES_start\">\ufeff<\/span><span style=\"display: inline-block; width: 0px; overflow: hidden; line-height: 0;\" data-mce-type=\"bookmark\" class=\"mce_SELRES_start\">\ufeff<\/span><span style=\"display: inline-block; width: 0px; overflow: hidden; line-height: 0;\" data-mce-type=\"bookmark\" class=\"mce_SELRES_start\">\ufeff<\/span><span style=\"display: inline-block; 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Svezia<\/p>\n<p><b><span data-contrast=\"auto\">Descrizione macroscopica:\u00a0<\/span><\/b>La diorite orbicolare o corsite \u00e8 una roccia appartenente alla famiglia dei gabbri, nonostante il componente femico prevalente sia un anfibolo e non, come di norma nei gabbri, un pirosseno. La tessitura particolare che la costituisce, quella orbicolare, \u00e8 analoga a quella di alcuni graniti e rocce metamorfiche, ma la composizione mineralogica ha fatto pendere la bilancia della scelta per l&#8217;appartenenza alla famiglia dei gabbri in quanto il plagioclasio che la costituisce \u00e8 una bytownite (con l&#8217;80% del componente anortitico). fonte wiki<\/p>\n<p><b><span data-contrast=\"auto\">Descrizione\u00a0<\/span><\/b><b><span data-contrast=\"auto\">microfoto<\/span><\/b><b><span data-contrast=\"auto\">:<br \/>\n<\/span><\/b><\/p>\n<p><strong>prima immagine:\u00a0<\/strong><\/p>\n<p><strong>seconda immagine:\u00a0<\/strong><\/p>\n<p><strong>terza immagine: <\/strong><strong><br \/>\n<\/strong><\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n","protected":false},"featured_media":800,"template":"","meta":{"_lmt_disableupdate":"no","_lmt_disable":"no"},"product_cat":[22],"product_tag":[],"class_list":{"0":"post-799","1":"product","2":"type-product","3":"status-publish","6":"product_cat-magmatiche-intrusive","8":"first","9":"outofstock","10":"shipping-taxable","11":"product-type-simple"},"_links":{"self":[{"href":"http:\/\/www.krantz.unipr.it\/index.php\/wp-json\/wp\/v2\/product\/799","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/www.krantz.unipr.it\/index.php\/wp-json\/wp\/v2\/product"}],"about":[{"href":"http:\/\/www.krantz.unipr.it\/index.php\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"http:\/\/www.krantz.unipr.it\/index.php\/wp-json\/wp\/v2\/media\/800"}],"wp:attachment":[{"href":"http:\/\/www.krantz.unipr.it\/index.php\/wp-json\/wp\/v2\/media?parent=799"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"http:\/\/www.krantz.unipr.it\/index.php\/wp-json\/wp\/v2\/product_cat?post=799"},{"taxonomy":"product_tag","embeddable":true,"href":"http:\/\/www.krantz.unipr.it\/index.php\/wp-json\/wp\/v2\/product_tag?post=799"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}