{"id":794,"date":"2023-03-15T13:22:36","date_gmt":"2023-03-15T12:22:36","guid":{"rendered":"http:\/\/www.krantz.unipr.it\/?post_type=product&#038;p=794"},"modified":"2023-03-15T13:28:55","modified_gmt":"2023-03-15T12:28:55","slug":"393-diorite-a-orneblenda","status":"publish","type":"product","link":"http:\/\/www.krantz.unipr.it\/index.php\/prodotto\/393-diorite-a-orneblenda\/","title":{"rendered":"393- Diorite a orneblenda"},"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<\/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\/393- Diorite a orneblenda\/393- Diorite a orneblenda.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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(separate, distinguere) in allusione al fatto che le dioriti sono rocce ignee con porzioni sialiche e femiche ben distinte. Il termine venne usato per la prima volta nel 1822 da R.j.Hauy che lo utilizz\u00f2 per descrivere rocce formate da porzioni bianche (feldspato) e porzioni scure (anfibolo, mica o pirosseno). Successivamente J.F.L. Haussmann e G. Rose limitarono l\u2019uso del termine diorite a rocce formate da plagioclasio \u2013 anfibolo.<\/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>Orneblenda bruna, biotite e plagioclasio in una diorite. Immagine a NX, 2x (lato lungo = 7mm)<\/p>\n<p><strong>seconda immagine:\u00a0<\/strong>Orneblenda bruna, biotite e plagioclasio in una diorite. Immagine a N\/\/, 2x (lato lungo = 7mm)<\/p>\n<p><strong>terza immagine: <\/strong>Orneblenda bruna, biotite e plagioclasio in una diorite. Immagine a NX, 2x (lato lungo = 7mm)<strong><br \/>\n<\/strong><\/p>\n<p>fonte: https:\/\/www.alexstrekeisen.it\/pluto\/diorite.php<\/p>\n<p>&nbsp;<\/p>\n","protected":false},"featured_media":798,"template":"","meta":{"_lmt_disableupdate":"no","_lmt_disable":"no"},"product_cat":[22],"product_tag":[],"class_list":{"0":"post-794","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\/794","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\/798"}],"wp:attachment":[{"href":"http:\/\/www.krantz.unipr.it\/index.php\/wp-json\/wp\/v2\/media?parent=794"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"http:\/\/www.krantz.unipr.it\/index.php\/wp-json\/wp\/v2\/product_cat?post=794"},{"taxonomy":"product_tag","embeddable":true,"href":"http:\/\/www.krantz.unipr.it\/index.php\/wp-json\/wp\/v2\/product_tag?post=794"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}