{"id":38,"date":"2025-02-28T10:42:48","date_gmt":"2025-02-28T10:42:48","guid":{"rendered":"https:\/\/dizainoarkliukas.lt\/?p=38"},"modified":"2025-02-28T10:42:48","modified_gmt":"2025-02-28T10:42:48","slug":"lietuvos-geologijos-tarnyboje-galima-atlikti-ir-chemine-meteoritu-analize","status":"publish","type":"post","link":"https:\/\/dizainoarkliukas.lt\/?p=38","title":{"rendered":"Lietuvos geologijos tarnyboje galima atlikti ir chemin\u0119 meteorit\u0173 analiz\u0119"},"content":{"rendered":"


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\u201eRasti meteorit\u0105 pavyksta retai, tad ir mums patiems ypa\u010d \u012fdomus dabar atliekamas darbas \u2013 rentgeno spinduli\u0173 fluorescencijos spektrometru tiriame \u010cil\u0117je rast\u0105 galimai meteorito gabal\u0117l\u012f. O m\u016bs\u0173 tyrimo rezultatai bus labai svarb\u016bs Vilniaus universiteto studentui, ra\u0161an\u010diam magistro darb\u0105\u201c, \u2013 sako Lietuvos geologijos tarnybos laboratorijos ved\u0117ja Migl\u0117 Jankovska.<\/p>\n<\/blockquote>\n

Kasdien \u012f \u017dem\u0119 nukrinta apie\u00a044 tonas meteoritin\u0117s med\u017eiagos, tik dauguma kosmini\u0173 uolien\u0173 sudega \u017dem\u0117s atmosferoje. O meteoritai ir yra meteroid\u0173 liekanos, sugeb\u0117jusios i\u0161gyventi kelion\u0119 per atmosfer\u0105. J\u0173 dydis paprastai svyruoja nuo akmenuko iki kum\u0161\u010dio dyd\u017eio.<\/p>\n

\"Meteorite_help_between_finger_and_thumb-1.jpeg\"
Marso meteoritas, oficialiai pavadintas \u201eNorthwest Africa (NWA) 7034\u201c ir pramintas \u201eBlack Beauty\u201c, sveria ma\u017edaug 320 gram\u0173. \u0160altinis:<\/em> NASA, <\/em>https:\/\/www.nasa.gov<\/em><\/figcaption><\/figure>\n

Pasak Lietuvos geologijos tarnybos (LGT) laboratorijos darbuotoj\u0173, meteoritus sunku atskirti nuo \u017dem\u0117s akmen\u0173, nes daugelis j\u0173 primena \u012fprastas uolienas, ypa\u010d bazalt\u0105. Lengviau juos pasteb\u0117ti dykumose, kur tams\u016bs meteoritai i\u0161siskiria \u0161viesaus sm\u0117lio fone, ar poliarin\u0117se srityse \u2013 Antarktidos ledynuose juos atpa\u017einti lengviau d\u0117l kontrasto su sniegu.<\/p>\n

I\u0161ori\u0161kai meteoritams b\u016bdingi keli bruo\u017eai. Pavyzd\u017eiui, meteoritui skriejant per atmosfer\u0105, susiformuoja tamsi plona stiklin\u0117 danga. Pavir\u0161iuje da\u017enai matyti sm\u016bginiai po\u017eymiai (regmagliptai) \u2013 ry\u0161k\u016bs \u012fdubimai, primenantys pir\u0161t\u0173 \u012fspaudus mink\u0161tame molyje. Gele\u017einiai arba akmeniniai gele\u017einiai meteoritai reaguoja \u012f magnet\u0105. Be abejo, akmeninio meteorito magnetas atpa\u017einti nepad\u0117s.<\/p>\n

Meteoritai \u012fdom\u016bs ne tik mokslininkams ar kolekcininkams ir \u0161i\u0173 kosmini\u0173 relikt\u0173 \u017emon\u0117s ie\u0161ko ne tik dykumose ar ledynuose, bet ir savo kiemuose.<\/p>\n

Vis d\u0117lto b\u016bti tikras, kad radote meteorit\u0105, vien i\u0161 pa\u017ei\u016bros negal\u0117site. Pasak M. Jankovskos, pirmiausia reikia atlikti chemin\u0119 elementin\u0119 analiz\u0119. Pavyzd\u017eiui, dabar rentgeno spinduli\u0173 fluorescencijos spektrometru LGT laboratorijos darbuotojai tiria Vilniaus universiteto studento \u010cil\u0117je rast\u0105 galimai meteorito gabal\u0117l\u012f.<\/p>\n

\"Ekrano<\/p>\n

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\u201eO jau atlikus chemin\u0119 analiz\u0119, bus galima kreiptis \u012f specialistus, tirian\u010dius uolien\u0173 petrografij\u0105 ir mineralogij\u0105, kad b\u016bt\u0173 tiksliai nustatyta radinio kilm\u0117 ir pavadinimas. Turint \u0161iuos duomenis, galima patikrinti, ar radinys atitinka meteoritams b\u016bdingas strukt\u016brines ir mineralogines savybes, ir galutinai patvirtinti jo kilm\u0119\u201c, \u2013 priduria LGT laboratorijos ved\u0117ja.<\/p>\n<\/blockquote>\n

Daugiau apie LGT laboratorijoje atliekamus tyrimus rasite \u010dia.<\/p>\n

\u2022 Lietuvos geologijos tarnybos informacija<\/em><\/span><\/p>\n

\u2022 Publikacija dalinasi Lietuvos region\u0173 naujien\u0173 portalas \u201eMiesto naujienos\u201c. Naujien\u0105 paskelb\u0117 \u201eLR Aplinkos ministerija\u201c. Daugiau sau ir savo miestui aktuali\u0173 naujien\u0173 rasite portale www.miestonaujienos.lt.<\/p>\n


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\u201eRasti meteorit\u0105 pavyksta retai, tad ir mums patiems ypa\u010d \u012fdomus dabar atliekamas darbas \u2013 rentgeno spinduli\u0173 fluorescencijos spektrometru tiriame \u010cil\u0117je…<\/p>\n","protected":false},"author":1,"featured_media":39,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"om_disable_all_campaigns":false,"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"footnotes":""},"categories":[51],"tags":[67,64,65,63,61,52,66,62],"class_list":["post-38","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-svietimas-ir-mokslas","tag-analize","tag-atlikti","tag-chemine","tag-galima","tag-geologijos","tag-lietuvos","tag-meteoritu","tag-tarnyboje"],"aioseo_notices":[],"yoast_head":"\nLietuvos geologijos tarnyboje galima atlikti ir chemin\u0119 meteorit\u0173 analiz\u0119 - DizainoArkliukas.LT<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/dizainoarkliukas.lt\/?p=38\" \/>\n<meta property=\"og:locale\" content=\"lt_LT\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Lietuvos geologijos tarnyboje galima atlikti ir chemin\u0119 meteorit\u0173 analiz\u0119 - 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