Minint Lietuvos piliakalni\u0173 metus, siekiant i\u0161 geologin\u0117s pus\u0117s \u012fvertinti, kokios kilm\u0117s yra \u0161ie kult\u016bros paveldo objektai, Lietuvos geologijos tarnyba atliko i\u0161sam\u0173 piliakalni\u0173 tyrim\u0105. Jame matyti ir vis\u0173 Ukmerg\u0117s rajone esan\u010di\u0173 piliakalni\u0173 gamtin\u0117 kilm\u0117.<\/p>\n
Tarnybos Kiet\u0173j\u0173 nauding\u0173j\u0173 i\u0161kasen\u0173 ir kartografavimo skyriaus vyriausioji geolog\u0117 Asta Jusien\u0117 sako, kad i\u0161 viso buvo i\u0161analizuota 913 piliakalni\u0173, apiman\u010di\u0173 vis\u0105 \u0161alies teritorij\u0105: 857 piliakalniai \u012ftraukti \u012f Kult\u016bros vertybi\u0173 registr\u0105, dar 56 objektai \u2013 Lietuvos piliakalni\u0173 internetiniame atlase.<\/p>\n
Tyrimas atliktas naudojant geologinio kartografavimo duomenis: vertintos piliakalni\u0173 viet\u0173 morfologin\u0117s ir genetin\u0117s ypatyb\u0117s, nuogul\u0173 sud\u0117tis, \u0161lait\u0173 strukt\u016bra ir aplinkinio reljefo pob\u016bdis. Kai kuriuose piliakalniuose informacija gauta i\u0161 gr\u0119\u017eini\u0173 ar atvir\u0173 pj\u016bvi\u0173, kituose \u2013 i\u0161 kvartero geologini\u0173 ir geomorfologini\u0173 \u017eem\u0117lapi\u0173.<\/p>\n
Tyrimo rezultatai parod\u0117, kad did\u017eioji dauguma piliakalni\u0173 \u012frengta ant gamtin\u0117s kilm\u0117s reljefo form\u0173: morenini\u0173, fliuvioglacialini\u0173 ar limnoglacialini\u0173 kalv\u0173 (susiformavusi\u0173 i\u0161 ledyno ir jo tirpsmo vanden\u0173 s\u0105na\u0161\u0173), upi\u0173 sl\u0117ni\u0173 \u0161lait\u0173 ky\u0161uli\u0173, keim\u0173 ar oz\u0173 keter\u0173 \u2013 siaur\u0173, pailg\u0173 sm\u0117lio ir \u017evyro kalv\u0173. \u0160iose vietose \u017emon\u0117s i\u0161lygindavo aik\u0161teles, supildavo pylimus ar i\u0161kasdavo griovius, bet pats reljefo pagrindas i\u0161likdavo nat\u016bralus.<\/p>\n
Vis d\u0117lto yra ir supiltini\u0173 ar stipriai \u017emogaus pertvarkyt\u0173 piliakalni\u0173. Toki\u0173 atvej\u0173 n\u0117ra daug, bet jie ai\u0161kiai i\u0161skiriami geologin\u0117je analiz\u0117je. Pavyzd\u017eiui, Dubi\u010di\u0173 piliakalnis (Var\u0117nos r.) priskirtas technogenin\u0117s kilm\u0117s kalvoms \u2013 motams (suformuotoms \u017emogaus). Kai kurie kiti, tokie kaip Skirsnemun\u0117s piliakalnis (Jurbarko r.), siejami su moto tipu, bet \u012frengti ant nat\u016bralaus reljefo pertvarkyt\u0173 form\u0173.<\/p>\n
Geologinis po\u017ei\u016bris leid\u017eia tiksliau atskirti, kur gamta suformavo piliakalni\u0173 pagrind\u0105, o kur \u017emogus reljef\u0105 k\u016br\u0117 ar i\u0161 esm\u0117s keit\u0117. Tai papildo archeolog\u0173 darbus ir leid\u017eia pa\u017evelgti \u012f piliakalnius ne tik kaip \u012f istorinius, bet ir kaip \u012f geologinius Lietuvos kra\u0161tovaizd\u017eio liudytojus.<\/p>\n
Kaip informavo Lietuvos geologijos tarnybos komunikacijos vadov\u0117 Jurgita Jasi\u016bnien\u0117, m\u016bs\u0173 miesto \u0161irdyje esantis Ukmerg\u0117s piliakalnis priskiriamas prie vadinam\u0173j\u0173 erozini\u0173 teras\u0173 ky\u0161uli\u0173.<\/p>\n
Tai \u2013 nat\u016bralios kilm\u0117s reljefo forma, susiformavusi d\u0117l tekan\u010dio vandens ardomosios veiklos.<\/p>\n
Reljefo formavimasis vyko etapais: paskutinio ledynme\u010dio pabaigoje ledyno tirpsmo vanduo prad\u0117jo formuoti \u0160ventosios sl\u0117n\u012f, o v\u0117liau, jau holoceno laikotarpiu, \u0160ventosios up\u0117 toliau sl\u0117n\u012f gilino, ard\u0117 krantus ir formavo terasas. Taip ir atsirado tas kalv\u0105 primenantis ky\u0161ulys. Ukmerg\u0117s rajone i\u0161 viso yra 20 piliakalni\u0173. Visus juos suformavo gamta.<\/p>\n","protected":false},"excerpt":{"rendered":"Minint Lietuvos piliakalni\u0173 metus, siekiant i\u0161 geologin\u0117s pus\u0117s \u012fvertinti, kokios kilm\u0117s yra \u0161ie kult\u016bros paveldo objektai, Lietuvos geologijos…\n","protected":false},"author":2,"featured_media":145509,"comment_status":"","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":"","_share_on_mastodon":"0"},"categories":[13],"tags":[25,30,31,34,35,24,32,33,37,39,36,38,40,23,22,24884,28,29,26,27,13495,369],"class_list":["post-145508","post","type-post","status-publish","format-standard","has-post-thumbnail","category-lietuva","tag-antrastes","tag-breaking-news","tag-breakingnews","tag-featured-news","tag-featurednews","tag-headlines","tag-latest-news","tag-latestnews","tag-lietuva","tag-lietuviu","tag-lithuania","tag-lithuanian","tag-lt","tag-naujienos","tag-news","tag-piliakalnis","tag-populiariausios-naujienos","tag-populiariausiosnaujienos","tag-top-stories","tag-topstories","tag-ukmerge","tag-zinios-is-regionu"],"share_on_mastodon":{"url":"https:\/\/pubeurope.com\/@lt\/116344946948008636","error":""},"_links":{"self":[{"href":"https:\/\/www.europesays.com\/lt\/wp-json\/wp\/v2\/posts\/145508","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.europesays.com\/lt\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.europesays.com\/lt\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.europesays.com\/lt\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.europesays.com\/lt\/wp-json\/wp\/v2\/comments?post=145508"}],"version-history":[{"count":0,"href":"https:\/\/www.europesays.com\/lt\/wp-json\/wp\/v2\/posts\/145508\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.europesays.com\/lt\/wp-json\/wp\/v2\/media\/145509"}],"wp:attachment":[{"href":"https:\/\/www.europesays.com\/lt\/wp-json\/wp\/v2\/media?parent=145508"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.europesays.com\/lt\/wp-json\/wp\/v2\/categories?post=145508"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.europesays.com\/lt\/wp-json\/wp\/v2\/tags?post=145508"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}