{"id":736,"date":"2023-02-22T14:31:00","date_gmt":"2023-02-22T13:31:00","guid":{"rendered":"http:\/\/www.krantz.unipr.it\/?post_type=product&#038;p=736"},"modified":"2023-02-22T14:41:50","modified_gmt":"2023-02-22T13:41:50","slug":"356-trachite-a-feldspatoide-2","status":"publish","type":"product","link":"http:\/\/www.krantz.unipr.it\/index.php\/prodotto\/356-trachite-a-feldspatoide-2\/","title":{"rendered":"356- Trachite a feldspatoide (a foide)"},"content":{"rendered":"<p><strong>DESCRIZIONE: <\/strong><\/p>\n<p>Le trachiti possono essere suddivise in due gruppi principali: trachiti potassiche o &#8220;normali&#8221; e trachiti sodiche o &#8220;trachiti alcaline&#8221;. Le trachiti potassiche sono costituite principalmente da sanidino (o anortoclasio) e plagioclasio (oligoclasio). Le trachiti sodiche invece sono costituite da feldspati e minerali mafici ricchi in Na.<\/p>\n<p>fonte: http:\/\/www.alexstrekeisen.it<\/p>\n<p><strong>VISTA A 360\u00b0<\/strong><\/p>\n<p><iframe loading=\"lazy\" src=\"https:\/\/www.krantz.unipr.it\/360\/356-Trachite a felspatoide\/356-Trachite a felspatoide.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; width: 0px; 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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; 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; 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; width: 0px; overflow: hidden; line-height: 0;\" data-mce-type=\"bookmark\" class=\"mce_SELRES_start\"><span style=\"display: inline-block; width: 0px; overflow: hidden; line-height: 0;\" data-mce-type=\"bookmark\" class=\"mce_SELRES_start\">\ufeff<\/span>\ufeff<\/span><\/iframe><\/p>\n","protected":false},"excerpt":{"rendered":"<p><strong>Collocazione: <\/strong>Vetrina 12, terzo ripiano<\/p>\n<p><strong>Localit\u00e0:\u00a0<\/strong>Barona, Caldas de Monchique (Algarve) &#8211; Portogallo<\/p>\n<p><b><span data-contrast=\"auto\">Descrizione macroscopica:\u00a0<\/span><\/b>Le trachiti, dal greco &#8220;trachys&#8221; (ruvido), sono rocce vulcaniche a grana fine, di colore grigio chiaro, con una superficie generalmente &#8220;ruvida&#8221;. Questo \u00e8 dovuto al fatto che i feldspati presenti nella roccia sono meno soggetti a fenomeni di erosione rispetto alla pasta di fondo a grana fine. Le trachiti sono composte principalmente da feldspati alcalini (sanidino e\/o anortoclasio) e da quantit\u00e0 variabili di minerali mafici quali biotite, anfiboli o pirosseni immersi in una pasta di fondo a grana fine-molto fine. Le trachiti hanno quantit\u00e0 di silice variabile tra 56-66% (minore delle rioliti), e alto contenuto in Al e Alcali Na<sub>2<\/sub>O + K<sub>2<\/sub>O circa 10% (maggiore delle daciti).http:\/\/www.alexstrekeisen.it<\/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>Cristalli di hauyna (scuri) e sanidino in una trachite a foidi. Immagine a N\/\/, 2x (lato lungo = 7mm)<\/p>\n<p><strong>seconda immagine:\u00a0<\/strong>Cristalli di hauyna (estinti) e sanidino in una trachite a foidi. Immagine a NX, 2x (lato lungo = 7mm)<\/p>\n<p><strong>terza immagine:\u00a0<\/strong>Cristalli di hauyna (scuri) e sanidino in una trachite a foidi. Immagine a N\/\/, 2x (lato lungo = 7mm)<\/p>\n<p>http:\/\/www.alexstrekeisen.it<\/p>\n","protected":false},"featured_media":737,"template":"","meta":{"_lmt_disableupdate":"","_lmt_disable":""},"product_cat":[22],"product_tag":[],"class_list":{"0":"post-736","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\/736","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\/737"}],"wp:attachment":[{"href":"http:\/\/www.krantz.unipr.it\/index.php\/wp-json\/wp\/v2\/media?parent=736"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"http:\/\/www.krantz.unipr.it\/index.php\/wp-json\/wp\/v2\/product_cat?post=736"},{"taxonomy":"product_tag","embeddable":true,"href":"http:\/\/www.krantz.unipr.it\/index.php\/wp-json\/wp\/v2\/product_tag?post=736"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}