{"id":24026,"date":"2022-04-01T21:30:10","date_gmt":"2022-04-01T21:30:10","guid":{"rendered":"https:\/\/extraslovensko.sk\/spravy\/?p=24026"},"modified":"2022-04-01T21:30:10","modified_gmt":"2022-04-01T21:30:10","slug":"stavba-zeme-zemsky-plast-kora-jadro","status":"publish","type":"post","link":"https:\/\/extraslovensko.sk\/spravy\/stavba-zeme-zemsky-plast-kora-jadro\/","title":{"rendered":"Stavba zeme, zemsk\u00fd pl\u00e1\u0161\u0165, k\u00f4ra, jadro"},"content":{"rendered":"

Stavba zeme, zemsk\u00fd pl\u00e1\u0161\u0165, k\u00f4ra, jadro a \u010do e\u0161te tam m\u00f4\u017ee by\u0165? T\u00edm geol\u00f3gov objavil v strede zemsk\u00e9ho pl\u00e1\u0161\u0165a doteraz nezn\u00e1mu vrstvu, ktor\u00e1 svojimi vlastnos\u0165ami pripom\u00edna povrch plan\u00e9ty<\/em>. V \u0161kole neu\u010dia, \u017ee Zem je rozdelen\u00e1 na tri vrstvy, ktor\u00fdmi s\u00fa k\u00f4ra, pl\u00e1\u0161\u0165 a jadro, ktor\u00e9 sa zase del\u00ed na vn\u00fatorn\u00e9 a vonkaj\u0161ie jadro. Z\u00e1kladn\u00e1 a presn\u00e1 sch\u00e9ma, ktor\u00e1 v\u0161ak napriek tomu vynech\u00e1va \u010fal\u0161ie jemnej\u0161ie vrstvy, ktor\u00e9 vedci teraz za\u010d\u00ednaj\u00fa identifikova\u0165 v hlbokom vn\u00fatri na\u0161ej plan\u00e9ty. Stavba zeme zemsk\u00fd pl\u00e1\u0161\u0165, odtrhnut\u00e1 civil\u00edz\u00e1cia Agartha \ud83d\ude42<\/p>\n

Stavba zeme, zemsk\u00fd pl\u00e1\u0161\u0165, k\u00f4ra, jadro<\/h1>\n

Dobr\u00fdm pr\u00edkladom je \u0161t\u00fadia publikovan\u00e1 tento t\u00fd\u017ede\u0148 v \u010dasopise Science, v ktorej geofyzikom Jessice Irving a Wenbo Wu z Princetonskej univerzity v spolupr\u00e1ci so Sidao Ni z In\u0161tit\u00fatu geod\u00e9zie a geofyziky v \u010c\u00edne sa podarilo vyu\u017ei\u0165 seizmick\u00e9 vlny ve\u013ek\u00e9ho zemetrasenie v Bol\u00edvii s cie\u013eom n\u00e1js\u0165 v h\u013abke 660 kilometrov nov\u00fd \u201epl\u00e1\u0161\u0165\u201c, ktor\u00fd ich nechal bez slova: horsk\u00fd re\u0165azec, ve\u013emi podobn\u00fd t\u00fdm na povrchu.
\n\"V
\nNa pozorovanie toho, \u010do sa deje v takejto h\u013abke, v\u00fdskumn\u00edci pou\u017eili najsilnej\u0161ie vlny, ktor\u00e9 existuj\u00fa na na\u0161ej plan\u00e9te, seizmick\u00e9 vlny generovan\u00e9 mas\u00edvnymi zemetraseniami.<\/p>\n

Najm\u00e4 pre t\u00fato \u0161t\u00fadiu boli k\u013e\u00fa\u010dov\u00e9 \u00fadaje z\u00edskan\u00e9 z v\u013an zachyten\u00fdch po zemetrasen\u00ed s magnit\u00fadou 8,2, druhom najsilnej\u0161om zaznamenanom, ktor\u00e9 otriaslo Bol\u00edviou v roku 1994. \u201eTak\u017ee ve\u013ek\u00e9 zemetrasenia sa neobjavuj\u00fa pr\u00edli\u0161 \u010dasto \u2013 hovor\u00ed Irving \u2013 a teraz m\u00e1me \u0161\u0165astie, \u017ee m\u00e1me ove\u013ea viac seizmografov ako pred 20 rokmi.<\/p>\n

Medzi t\u00fdmito n\u00e1strojmi a v\u00fdpo\u010dtov\u00fdmi zdrojmi je dnes seizmol\u00f3gia \u00faplne in\u00e1 oblas\u0165 ako pred dvoma desa\u0165ro\u010diami \u00bb<\/p>\n

V tomto pr\u00edpade vedci pou\u017eili skupinu superpo\u010d\u00edta\u010dov Tiger z Princetonskej univerzity na simul\u00e1ciu komplexn\u00e9ho spr\u00e1vania rozpt\u00fdlen\u00fdch seizmick\u00fdch v\u013an v hlbin\u00e1ch Zeme. Technol\u00f3gia pou\u017eit\u00e1 na t\u00fato anal\u00fdzu z\u00e1vis\u00ed takmer v\u00fdlu\u010dne od jedinej vlastnosti v\u013an: ich schopnosti oh\u00fdba\u0165 sa a odr\u00e1\u017ea\u0165.<\/p>\n

Tak, rovnak\u00fdm sp\u00f4sobom, ak\u00fdm sa sveteln\u00e9 vlny m\u00f4\u017eu odr\u00e1\u017ea\u0165 (odr\u00e1\u017ea\u0165) v zrkadle alebo oh\u00fdba\u0165 (l\u00e1ma\u0165), ke\u010f prech\u00e1dzaj\u00fa hranolom, seizmick\u00e9 vlny sa pohybuj\u00fa priamo cez homog\u00e9nne horniny, ale odr\u00e1\u017eaj\u00fa sa alebo l\u00e1mu, ke\u010f n\u00e1jdu ur\u010dit\u00fa hranicu alebo drsnos\u0165.<\/p>\n

\u201eVieme, \u017ee takmer v\u0161etky predmety maj\u00fa drsn\u00fd povrch, a preto rozpty\u013euj\u00fa svetlo,\u201c hovor\u00ed Wenbo Wu, hlavn\u00fd autor \u010dl\u00e1nku. A to je d\u00f4vod, pre\u010do tieto objekty m\u00f4\u017eeme vidie\u0165: rozptylov\u00e9 vlny nes\u00fa inform\u00e1ciu o drsnosti, s ktorou interagovali. V tejto \u0161t\u00fadii sk\u00famame rozpt\u00fdlen\u00e9 seizmick\u00e9 vlny, ktor\u00e9 sa pohybuj\u00fa v r\u00e1mci Zeme, aby sme \u0161tudovali drsnos\u0165 660-kilometrov\u00e9ho limitu<\/em>. \u201c<\/p>\n

Geol\u00f3gov prekvapila \u201edrsnos\u0165\u201c tejto novej vrstvy, ktor\u00e1 bola e\u0161te v\u00fdraznej\u0161ia ako to, \u010do m\u00f4\u017eeme vidie\u0165 v povrchovej vrstve (zemskej k\u00f4re), na ktorej v\u0161etci \u017eijeme. <\/p>\n

In\u00fdmi slovami, hovor\u00ed Wu, v limite 660 kilometrov je pr\u00edtomn\u00e1 topografia silnej\u0161ia ne\u017e topografia Skalist\u00fdch h\u00f4r alebo Apala\u010dsk\u00fdch vrchov.<\/p><\/blockquote>\n

\u0160tatistick\u00fd model vyvinut\u00fd vedcami neumo\u017enil s presnos\u0165ou ur\u010di\u0165 v\u00fd\u0161ku t\u00fdchto h\u00f4r, ale vo svojom \u010dl\u00e1nku ubezpe\u010duj\u00fa, \u017ee by mohli by\u0165 v\u00e4\u010d\u0161ie a vy\u0161\u0161ie ako ktor\u00e9ko\u013evek in\u00e9 na povrchu Zeme.<\/p>\n

Drsnos\u0165 navy\u0161e nebola rovnomerne rozlo\u017een\u00e1. \u010co znamen\u00e1, \u017ee tak ako m\u00e1 povrch k\u00f4ry hladk\u00e9 dno oce\u00e1nov a mas\u00edvne hory, 660-kilometrov\u00e1 hranica m\u00e1 vysok\u00e9 plochy a rovn\u00e9 povrchy. Na porovnanie vedci sk\u00famali aj vrstvu hlbok\u00fa 410 kilometrov, na vrchole \u201eprechodovej z\u00f3ny\u201c stredn\u00e9ho pl\u00e1\u0161\u0165a, ale ni\u010d podobn\u00e9 nena\u0161li. In\u00fdmi slovami, Wuov t\u00edm zistil, \u017ee hlbok\u00e9 vrstvy Zeme s\u00fa rovnako zlo\u017eit\u00e9 a premenliv\u00e9 ako tie, ktor\u00e9 pozorujeme na povrchu.<\/p>\n

Niektor\u00e9 geochemick\u00e9 a mineralogick\u00e9 d\u00f4kazy nazna\u010duj\u00fa, \u017ee horn\u00fd a spodn\u00fd pl\u00e1\u0161\u0165 s\u00fa chemicky odli\u0161n\u00e9, \u010do podporuje my\u0161lienku, \u017ee tieto dve \u010dasti sa tepelne ani fyzik\u00e1lne nemie\u0161aj\u00fa. In\u00ed v\u0161ak nazna\u010duj\u00fa, \u017ee tieto rozdiely neexistuj\u00fa a \u017ee cel\u00fd pl\u00e1\u0161\u0165 je homog\u00e9nny a bez samostatn\u00fdch alebo oddelen\u00fdch \u010dast\u00ed. “Na\u0161e zistenia,” hovor\u00ed Wu, “poskytuj\u00fa konkr\u00e9tne \u00fadaje o tomto probl\u00e9me.”<\/p>\n

Z\u00edskan\u00e9 \u00fadaje v skuto\u010dnosti nazna\u010duj\u00fa, \u017ee obhajcovia t\u00fdchto dvoch protichodn\u00fdch my\u0161lienok m\u00f4\u017eu ma\u0165 \u010diasto\u010dne pravdu. Tak\u017ee \u201em\u00e4k\u0161ie\u201c oblasti 660 kilometrov\u00e9ho limitu by mohli by\u0165 sp\u00f4soben\u00e9 \u00faplnej\u0161ou zmesou, zatia\u013e \u010do horsk\u00e9 a strm\u0161ie oblasti sa mohli vytvori\u0165 na miestach, kde sa horn\u00fd a doln\u00fd pl\u00e1\u0161\u0165 tak dobre nepremie\u0161aj\u00fa.<\/p>\n

\u010co mohlo sp\u00f4sobi\u0165 v\u00fdrazn\u00e9 chemick\u00e9 rozdiely v pl\u00e1\u0161ti? Najpravdepodobnej\u0161ou odpove\u010fou je, \u017ee tieto rozdiely poch\u00e1dzaj\u00fa zo zavedenia horn\u00edn, ktor\u00e9 kedysi patrili do k\u00f4ry a ktor\u00e9 teraz ticho le\u017eia v hlbin\u00e1ch Zeme.<\/p>\n

Vedci u\u017e dlho uva\u017euj\u00fa nad osudom dosiek morsk\u00e9ho dna, ktor\u00e9 s\u00fa zatla\u010den\u00e9 do pl\u00e1\u0161\u0165a v subduk\u010dn\u00fdch z\u00f3nach, \u010do sa deje v Tichom oce\u00e1ne a v in\u00fdch \u010dastiach sveta. Wu a Irving nazna\u010duj\u00fa, \u017ee zvy\u0161ky t\u00fdchto dosiek m\u00f4\u017eu by\u0165 teraz tesne nad alebo tesne pod hranicou 660 kilometrov.<\/p>\n

\u201eSeizmol\u00f3gia sa st\u00e1va vzru\u0161uj\u00facej\u0161ou, ke\u010f n\u00e1m umo\u017e\u0148uje lep\u0161ie pochopi\u0165 vn\u00fatro na\u0161ej plan\u00e9ty v priestore aj v \u010dase,\u201c uzavrel Irving.<\/p>\n

6. Febru\u00e1ra 2022 \ud83d\ude42
\nStavba zeme, zemsk\u00fd pl\u00e1\u0161\u0165, k\u00f4ra, jadro to\u0165 u\u017e Jules Verne. Ale Vatik\u00e1nski Ilumin\u00e1ti \u010darnogurskeho vl\u00e1dnu \u010falej, tak\u017ee ni\u010d extra sa nedozvieme.<\/p>\n

A to m\u00e1me kopu \u010dl\u00e1nkov o podzem\u00fdch mest\u00e1ch, kde \u017eij\u00fa \u013eudia v katal\u00f3gu o Bucegi!
\nAch jaj.<\/p>\n","protected":false},"excerpt":{"rendered":"

Stavba zeme, zemsk\u00fd pl\u00e1\u0161\u0165, k\u00f4ra, jadro a \u010do e\u0161te tam m\u00f4\u017ee by\u0165? T\u00edm geol\u00f3gov objavil v strede zemsk\u00e9ho pl\u00e1\u0161\u0165a doteraz nezn\u00e1mu vrstvu, ktor\u00e1 svojimi vlastnos\u0165ami pripom\u00edna povrch plan\u00e9ty. V \u0161kole neu\u010dia, \u017ee Zem je rozdelen\u00e1 na tri vrstvy, ktor\u00fdmi s\u00fa k\u00f4ra, pl\u00e1\u0161\u0165 a jadro, ktor\u00e9 sa zase del\u00ed na vn\u00fatorn\u00e9 a vonkaj\u0161ie jadro. Z\u00e1kladn\u00e1 a […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[5],"tags":[],"class_list":["post-24026","post","type-post","status-publish","format-standard","hentry","category-exo-news"],"_links":{"self":[{"href":"https:\/\/extraslovensko.sk\/spravy\/wp-json\/wp\/v2\/posts\/24026","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/extraslovensko.sk\/spravy\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/extraslovensko.sk\/spravy\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/extraslovensko.sk\/spravy\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/extraslovensko.sk\/spravy\/wp-json\/wp\/v2\/comments?post=24026"}],"version-history":[{"count":0,"href":"https:\/\/extraslovensko.sk\/spravy\/wp-json\/wp\/v2\/posts\/24026\/revisions"}],"wp:attachment":[{"href":"https:\/\/extraslovensko.sk\/spravy\/wp-json\/wp\/v2\/media?parent=24026"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/extraslovensko.sk\/spravy\/wp-json\/wp\/v2\/categories?post=24026"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/extraslovensko.sk\/spravy\/wp-json\/wp\/v2\/tags?post=24026"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}