{"id":7246,"date":"2016-12-19T09:06:04","date_gmt":"2016-12-19T15:06:04","guid":{"rendered":"http:\/\/huewhite.com\/umb\/?p=7246"},"modified":"2016-12-19T09:06:04","modified_gmt":"2016-12-19T15:06:04","slug":"word-of-the-day-60","status":"publish","type":"post","link":"https:\/\/huewhite.com\/umb\/2016\/12\/19\/word-of-the-day-60\/","title":{"rendered":"Word of the Day"},"content":{"rendered":"

Plagioclase<\/em>:<\/p>\n

Plagioclase<\/b> is a series of tectosilicate<\/a> (framework silicate) minerals<\/a> within the feldspar<\/a> group. Rather than referring to a particular mineral with a specific chemical<\/em> composition, plagioclase is a continuous solid solution<\/a> series, more properly known as the plagioclase feldspar<\/b> series (from the Ancient Greek for “oblique fracture”, in reference to its two cleavage<\/a> angles).<\/p><\/blockquote>\n

Seen in “Moon-dust cake mix shows moon may have had water from the start<\/em><\/a>“, by Andy Coghlan, NewScientist<\/strong><\/em> (3 December 2016):<\/p>\n

Only when water was included in the mix, at levels of just 0.5 to 1 per cent by weight, did the types and amounts of rock formed match those that have been observed on the moon.<\/p>\n

Most importantly, the water-based mixture generated a layer of plagioclase \u2013 the main component of the crust \u2013 that when extrapolated to the moon would be around 34 to 43 kilometres thick, matching the average thickness measured with satellites. Dry mixtures led to a plagioclase layer twice as deep. This suggests that the moon\u2019s current geology could only have evolved if water was there at the outset (Nature Geoscience<\/i>, doi.org\/btz8<\/a>).<\/p><\/blockquote>\n","protected":false},"excerpt":{"rendered":"

Plagioclase: Plagioclase is a series of tectosilicate (framework silicate) minerals within the feldspar group. Rather than referring to a particular mineral with a specific chemical composition, plagioclase is a continuous solid solution series, more properly known as the plagioclase feldspar series (from the Ancient Greek for “oblique fracture”, in reference \u2026 Continue reading → <\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"nf_dc_page":"","_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[1],"tags":[],"class_list":["post-7246","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/huewhite.com\/umb\/wp-json\/wp\/v2\/posts\/7246","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/huewhite.com\/umb\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/huewhite.com\/umb\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/huewhite.com\/umb\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/huewhite.com\/umb\/wp-json\/wp\/v2\/comments?post=7246"}],"version-history":[{"count":1,"href":"https:\/\/huewhite.com\/umb\/wp-json\/wp\/v2\/posts\/7246\/revisions"}],"predecessor-version":[{"id":7247,"href":"https:\/\/huewhite.com\/umb\/wp-json\/wp\/v2\/posts\/7246\/revisions\/7247"}],"wp:attachment":[{"href":"https:\/\/huewhite.com\/umb\/wp-json\/wp\/v2\/media?parent=7246"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/huewhite.com\/umb\/wp-json\/wp\/v2\/categories?post=7246"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/huewhite.com\/umb\/wp-json\/wp\/v2\/tags?post=7246"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}