{"id":160,"date":"2024-04-04T06:11:50","date_gmt":"2024-04-04T03:11:50","guid":{"rendered":"https:\/\/sisu.ut.ee\/mineraalid-ja-kivimid\/laava\/"},"modified":"2024-04-04T06:13:00","modified_gmt":"2024-04-04T03:13:00","slug":"laava","status":"publish","type":"page","link":"https:\/\/sisu.ut.ee\/mineraalid-ja-kivimid\/laava\/","title":{"rendered":"Laava"},"content":{"rendered":"<p>\n\t<font face=\"Arial\"><font style=\"medium;font-style:normal;font-weight:400;letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none\"><b>Laava<\/b>\u00a0jaguneb koostisele vastavalt happeliseks v\u00f5i aluseliseks. Happelised laavad on paksud ja kleepuvad, nad voolavad v\u00e4ga aeglaselt ja moodustavad j\u00e4rsun\u00f5lvalisi vulkaane. Aluselised, vedelamad laavad (fotod 1 \u2013 6) voolavad kiirelt ja katavad tohutuid alasid. Aluselised laavad moodustavad laugen\u00f5lvalisi vulkaane. T\u00fc\u00fcpiline aluseline laava on\u00a0<\/font><\/font><a data-url=\"https:\/\/sisu.ut.ee\/mineraalid-ja-kivimid\/basalt\" href=\"https:\/\/sisu.ut.ee\/mineraalid-ja-kivimid\/basalt\" target=\"_blank\" title=\"\" rel=\"noopener\">basalt<\/a><font face=\"Arial\"><font style=\"medium;font-style:normal;font-weight:400;letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none\">.<\/font><\/font>\n<\/p>\n<p>\n\t<font face=\"Arial\">Voolates laava pealispind jahtub ja tekib koorik. Koorik kortsub laava edasise liikumise k\u00e4igus ja tekivad nn\u00a0<b>k\u00f6islaavad<\/b>\u00a0(foto 2).<\/font>\n<\/p>\n<p>\n\t<font face=\"Arial\"><b>Obsidiaan ehk vulkaaniline klaas<\/b>\u00a0tekib kiirelt jahtuvas laavas \u2013 ta tekib nii kiiresti, et ei ole aega kristallide kasvamiseks (foto 7, 8).<\/font>\n<\/p>\n<p>\n\t<img loading=\"lazy\" decoding=\"async\" width=\"120\" height=\"107\" class=\"alignnone wp-image-467\" src=\"https:\/\/sisu.ut.ee\/wp-content\/uploads\/sites\/431\/laava1a.jpg\" title=\"laava1a.jpg\" alt=\"laava\"><br><font face=\"Arial\">Foto 1. Laava<\/font>\n<\/p>\n<p>\n\t<img loading=\"lazy\" decoding=\"async\" width=\"120\" height=\"63\" class=\"alignnone wp-image-468\" src=\"https:\/\/sisu.ut.ee\/wp-content\/uploads\/sites\/431\/al_laava1a.jpg\" title=\"al_laava1a.jpg\" alt=\"aluseline laava\">\u00a0<img loading=\"lazy\" decoding=\"async\" width=\"120\" height=\"90\" class=\"alignnone wp-image-469\" src=\"https:\/\/sisu.ut.ee\/wp-content\/uploads\/sites\/431\/al_laava4a.jpg\" title=\"al_laava4a.jpg\" alt=\"aluseline laava\">\u00a0<img loading=\"lazy\" decoding=\"async\" width=\"120\" height=\"67\" class=\"alignnone wp-image-470\" src=\"https:\/\/sisu.ut.ee\/wp-content\/uploads\/sites\/431\/al_laava2a.jpg\" title=\"al_laava2a.jpg\" alt=\"aluseline laava\">\u00a0<img loading=\"lazy\" decoding=\"async\" width=\"120\" height=\"90\" class=\"alignnone wp-image-471\" src=\"https:\/\/sisu.ut.ee\/wp-content\/uploads\/sites\/431\/al_laava3a.jpg\" title=\"al_laava3a.jpg\" alt=\"aluseline laava\"><br><font face=\"Arial\">Foto 2 \u2013 5. Aluseline laava, Teneguia, La Palma, Hispaania<\/font>\n<\/p>\n<p>\n\t<img loading=\"lazy\" decoding=\"async\" width=\"120\" height=\"112\" class=\"alignnone wp-image-472\" src=\"https:\/\/sisu.ut.ee\/wp-content\/uploads\/sites\/431\/laava2a.jpg\" title=\"laava2a.jpg\" alt=\"laava\"><br><font face=\"Arial\">Foto 6. Aluseline k\u00f6islaava, 1949. aasta purse, La Palma, Kanaari saared, Hispaania<\/font>\n<\/p>\n<p>\n\t<img loading=\"lazy\" decoding=\"async\" width=\"84\" height=\"120\" class=\"alignnone wp-image-473\" src=\"https:\/\/sisu.ut.ee\/wp-content\/uploads\/sites\/431\/vulk_kl1a.jpg\" title=\"vulk_kl1a.jpg\" alt=\"vulkaaniline klaas\">\u00a0<img loading=\"lazy\" decoding=\"async\" width=\"102\" height=\"120\" class=\"alignnone wp-image-474\" src=\"https:\/\/sisu.ut.ee\/wp-content\/uploads\/sites\/431\/vulk_kl2a.jpg\" title=\"vulk_kl2a.jpg\" alt=\"vulkaaniline klaas\"><br><font face=\"Arial\">Foto 7, 8. Obsidiaan ehk vulkaaniline klaas<\/font>\n<\/p>\n<p style=\"text-align:start\">\n\t<br><span><span style=\"color:#000000\"><span><span style=\"font-style:normal\"><span><span><span style=\"font-weight:400\"><span style=\"letter-spacing:normal\"><span><span style=\"text-transform:none\"><span><span><span><span><span>Koostanud ja fotografeerinud \u00a9 2003 Mare Isakar<\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Laava\u00a0jaguneb koostisele vastavalt happeliseks v\u00f5i aluseliseks. Happelised laavad on paksud ja kleepuvad, nad voolavad v\u00e4ga aeglaselt ja moodustavad j\u00e4rsun\u00f5lvalisi vulkaane. Aluselised, vedelamad laavad (fotod 1 \u2013 6) voolavad kiirelt ja katavad tohutuid alasid. Aluselised laavad moodustavad laugen\u00f5lvalisi vulkaane. T\u00fc\u00fcpiline aluseline &#8230;<\/p>\n","protected":false},"author":226,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_acf_changed":false,"inline_featured_image":false,"footnotes":""},"class_list":["post-160","page","type-page","status-publish","hentry"],"acf":[],"_links":{"self":[{"href":"https:\/\/sisu.ut.ee\/mineraalid-ja-kivimid\/wp-json\/wp\/v2\/pages\/160","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/sisu.ut.ee\/mineraalid-ja-kivimid\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/sisu.ut.ee\/mineraalid-ja-kivimid\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/sisu.ut.ee\/mineraalid-ja-kivimid\/wp-json\/wp\/v2\/users\/226"}],"replies":[{"embeddable":true,"href":"https:\/\/sisu.ut.ee\/mineraalid-ja-kivimid\/wp-json\/wp\/v2\/comments?post=160"}],"version-history":[{"count":1,"href":"https:\/\/sisu.ut.ee\/mineraalid-ja-kivimid\/wp-json\/wp\/v2\/pages\/160\/revisions"}],"predecessor-version":[{"id":681,"href":"https:\/\/sisu.ut.ee\/mineraalid-ja-kivimid\/wp-json\/wp\/v2\/pages\/160\/revisions\/681"}],"wp:attachment":[{"href":"https:\/\/sisu.ut.ee\/mineraalid-ja-kivimid\/wp-json\/wp\/v2\/media?parent=160"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}