{"id":4195,"date":"2022-11-14T09:27:42","date_gmt":"2022-11-14T09:27:42","guid":{"rendered":"https:\/\/www.lifescienceart.com\/?p=4195"},"modified":"2022-11-14T09:27:42","modified_gmt":"2022-11-14T09:27:42","slug":"yellowstone-national-park-hydrothermal-explosions","status":"publish","type":"post","link":"https:\/\/www.lifescienceart.com\/cs\/science\/earth-sciences\/yellowstone-national-park-hydrothermal-explosions\/","title":{"rendered":"Yellowstonsk\u00fd n\u00e1rodn\u00ed park: Skryt\u00fd hazard hydroterm\u00e1ln\u00edch v\u00fdbuch\u016f"},"content":{"rendered":"

N\u00e1rodn\u00ed park Yellowstone: Geologick\u00e9 hork\u00e9 m\u00edsto s potenci\u00e1lem pro hydroterm\u00e1ln\u00ed v\u00fdbuchy<\/h2>\n\n

Hydroterm\u00e1ln\u00ed v\u00fdbuchy: Skryt\u00fd hazard<\/h2>\n\n

N\u00e1rodn\u00ed park Yellowstone je proslul\u00fd svou \u00fachvatnou p\u0159\u00edrodn\u00ed kr\u00e1sou, ale pod jeho povrchem se skr\u00fdv\u00e1 skryt\u00e9 nebezpe\u010d\u00ed: hydroterm\u00e1ln\u00ed v\u00fdbuchy. Tyto mocn\u00e9 ud\u00e1losti nast\u00e1vaj\u00ed, kdy\u017e se pod zemsk\u00fdm povrchem hromad\u00ed magmatem oh\u0159\u00edvan\u00e1 voda a p\u00e1ra, co\u017e zp\u016fsobuje, \u017ee krajina stoup\u00e1 a kles\u00e1 jako kon\u00edci na koloto\u010di. I kdy\u017e v\u011bt\u0161ina t\u011bchto pohyb\u016f je ne\u0161kodn\u00e1, ob\u010das mohou dos\u00e1hnout bodu zlomu a explodovat.<\/p>\n\n

Varovn\u00e9 sign\u00e1ly bl\u00ed\u017e\u00edc\u00edch se v\u00fdbuch\u016f<\/h2>\n\n

V\u011bdci st\u00e1le pracuj\u00ed na pochopen\u00ed p\u0159esn\u00fdch mechanism\u016f, kter\u00e9 spou\u0161t\u011bj\u00ed hydroterm\u00e1ln\u00ed v\u00fdbuchy, ale identifikovali n\u011bkolik varovn\u00fdch sign\u00e1l\u016f. Jedn\u00edm z kl\u00ed\u010dov\u00fdch ukazatel\u016f je deformace zemsk\u00e9ho povrchu. Jak se magma a p\u00e1ra hromad\u00ed pod zem\u00ed, mohou zp\u016fsobit, \u017ee se zemsk\u00fd povrch zved\u00e1 a kles\u00e1. Dal\u0161\u00edm znakem je vznik nov\u00fdch parn\u00edch pr\u016fduch\u016f nebo zm\u011bny v chov\u00e1n\u00ed st\u00e1vaj\u00edc\u00edch gejz\u00edr\u016f.<\/p>\n\n

Monitorov\u00e1n\u00ed a posuzov\u00e1n\u00ed hrozeb<\/h2>\n\n

Aby ochr\u00e1nili n\u00e1v\u0161t\u011bvn\u00edky p\u0159ed t\u011bmito potenci\u00e1ln\u00edmi nebezpe\u010d\u00edmi, geologov\u00e9 a v\u011bdci parku neust\u00e1le monitoruj\u00ed geologii parku. Pou\u017e\u00edvaj\u00ed \u0159adu technik, v\u010detn\u011b m\u011b\u0159en\u00ed deformace zemsk\u00e9ho povrchu, teplotn\u00edch sond, seismograf\u016f a satelitn\u00edch radarov\u00fdch sn\u00edmk\u016f. Tato data jim pom\u00e1haj\u00ed identifikovat oblasti, kter\u00e9 jsou vystaveny riziku hydroterm\u00e1ln\u00edch v\u00fdbuch\u016f, a vypracovat pl\u00e1ny posuzov\u00e1n\u00ed hrozeb.<\/p>\n\n

Nafouknut\u00e1 pl\u00e1\u0148: Potenci\u00e1ln\u00ed hrozba<\/h2>\n\n

Jednou z nejv\u00edce znepokojuj\u00edc\u00edch oblast\u00ed v Yellowstonu je “nafouknut\u00e1 pl\u00e1\u0148” na dn\u011b Yellowstonsk\u00e9ho jezera. O tomto 2100 stop \u0161irok\u00e9m a 100 stop vysok\u00e9m otekl\u00e9m \u00fatvaru se p\u0159edpokl\u00e1d\u00e1, \u017ee je zp\u016fsoben p\u00e1rou nebo oxidem uhli\u010dit\u00fdm, kter\u00e9 se hromad\u00ed pod dnem jezera. V\u011bdci jsou obzvl\u00e1\u0161t\u011b znepokojeni, proto\u017ee le\u017e\u00ed pod\u00e9l trhliny, praskliny v zemsk\u00e9 k\u016f\u0159e, kter\u00e1 by mohla potenci\u00e1ln\u011b umo\u017enit, aby nahromad\u011bn\u00fd tlak dos\u00e1hl kritick\u00e9ho bodu.<\/p>\n\n

Minul\u00e9 v\u00fdbuchy a jejich dopad<\/h2>\n\n

Hydroterm\u00e1ln\u00ed v\u00fdbuchy se v Yellowstonu vyskytovaly v pr\u016fb\u011bhu cel\u00e9 jeho historie. Minul\u00e9 v\u00fdbuchy zanechaly po sob\u011b j\u00e1my a prohlubn\u011b v zemi a tak\u00e9 vrstvy trosek, kter\u00e9 byly vymr\u0161t\u011bny a\u017e do vzd\u00e1lenosti t\u0159\u00ed a p\u016fl m\u00edle. Radiokarbonov\u00e9 datov\u00e1n\u00ed \u00falomk\u016f d\u0159eva nalezen\u00fdch v t\u011bchto lo\u017eisk\u00e1ch nazna\u010duje, \u017ee k velk\u00fdm v\u00fdbuch\u016fm doch\u00e1zelo ka\u017ed\u00fdch 3000 a\u017e 14000 let.<\/p>\n\n

Ned\u00e1vn\u00e1 aktivita a bezpe\u010dnostn\u00ed opat\u0159en\u00ed<\/h2>\n\n

V posledn\u00edch letech zaznamenal Yellowstone zv\u00fd\u0161enou aktivitu, v\u010detn\u011b otev\u00edr\u00e1n\u00ed nov\u00fdch parn\u00edch pr\u016fduch\u016f a zm\u011bn v chov\u00e1n\u00ed gejz\u00edr\u016f. V roce 2003 se otev\u0159elo \u010dtrn\u00e1ct nov\u00fdch parn\u00edch pr\u016fduch\u016f pod\u00e9l 230 stop dlouh\u00e9 linie severn\u011b od Norris Basin a uvol\u0148ovalo oblaka hust\u00e9 vodn\u00ed p\u00e1ry a \u00falomky skeln\u00e9ho pr\u00e1\u0161ku. V roce 2014 za\u010daly gejz\u00edry v Norris Basin chrlit vodu v neobvykl\u00fdch \u010dasech a teplota zem\u011b v t\u00e9to oblasti vzrostla.<\/p>\n\n

Aby byla zaji\u0161t\u011bna bezpe\u010dnost n\u00e1v\u0161t\u011bvn\u00edk\u016f, spr\u00e1vci parku uzav\u0159eli oblasti, kter\u00e9 jsou vystaveny riziku hydroterm\u00e1ln\u00edch v\u00fdbuch\u016f. Tak\u00e9 monitoruj\u00ed oblasti pod\u00e9l stezek pomoc\u00ed teplotn\u00edch sond a seismograf\u016f a zavedli pl\u00e1n posuzov\u00e1n\u00ed hrozeb, aby identifikovali a zm\u00edrnili potenci\u00e1ln\u00ed nebezpe\u010d\u00ed.<\/p>\n\n

Z\u00e1v\u011br<\/h2>\n\n

N\u00e1rodn\u00ed park Yellowstone je unik\u00e1tn\u00ed a fascinuj\u00edc\u00ed m\u00edsto, ale je to tak\u00e9 geologick\u00e9 hork\u00e9 m\u00edsto s potenci\u00e1lem pro hydroterm\u00e1ln\u00ed v\u00fdbuchy. D\u00edky pochopen\u00ed varovn\u00fdch sign\u00e1l\u016f a monitorov\u00e1n\u00ed geologie parku mohou v\u011bdci a spr\u00e1vci parku pomoci chr\u00e1nit n\u00e1v\u0161t\u011bvn\u00edky p\u0159ed t\u011bmito skryt\u00fdmi nebezpe\u010d\u00edmi.<\/p>","protected":false},"excerpt":{"rendered":"

N\u00e1rodn\u00ed park Yellowstone: Geologick\u00e9 hork\u00e9 m\u00edsto s potenci\u00e1lem pro hydroterm\u00e1ln\u00ed v\u00fdbuchy Hydroterm\u00e1ln\u00ed v\u00fdbuchy: Skryt\u00fd hazard N\u00e1rodn\u00ed park Yellowstone je proslul\u00fd svou \u00fachvatnou p\u0159\u00edrodn\u00ed kr\u00e1sou, ale pod jeho povrchem se skr\u00fdv\u00e1…<\/p>\n","protected":false},"author":6,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[728],"tags":[207,7695,7696,572,1974,4682],"class_list":["post-4195","post","type-post","status-publish","format-standard","hentry","category-earth-sciences","tag-geology","tag-hydrothermal-explosions","tag-natural-hazards","tag-earth-science","tag-volcanology","tag-yellowstone-national-park"],"_links":{"self":[{"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/posts\/4195","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/users\/6"}],"replies":[{"embeddable":true,"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/comments?post=4195"}],"version-history":[{"count":1,"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/posts\/4195\/revisions"}],"predecessor-version":[{"id":4196,"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/posts\/4195\/revisions\/4196"}],"wp:attachment":[{"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/media?parent=4195"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/categories?post=4195"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/tags?post=4195"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}