Cientistas recuperam núcleo de gelo antártico de 1,2 milhão de anos

[{"selector":"#anim-55899c69-7597-4799-b7c0-e9efa49140a7","keyframes":{"opacity":[0,1]},"delay":0,"duration":600,"easing":"cubic-bezier(0.4, 0.4, 0.0, 1)","fill":"both"}] [{"selector":"#anim-3118f308-2ea8-420a-bb07-947ab97d0acd","keyframes":{"opacity":[0,1]},"delay":0,"duration":1000,"easing":"cubic-bezier(0.4, 0.4, 0.0, 1)","fill":"both"}] [{"selector":"#anim-6aab618b-6094-4f7f-b228-bcd4f91316ed","keyframes":{"opacity":[0,1]},"delay":0,"duration":500,"easing":"cubic-bezier(.3,0,.55,1)","fill":"both"}] [{"selector":"#anim-fefd22b2-61e8-4cda-acc4-2b984f0806fb","keyframes":{"transform":["scale(0.3333333333333333)","scale(1)"]},"delay":0,"duration":500,"easing":"cubic-bezier(.3,0,.55,1)","fill":"forwards"}] PNRA/IPEV

[{"selector":"#anim-a7d5c4a2-a343-430f-8485-6d80ef0107bc","keyframes":{"opacity":[0,1]},"delay":0,"duration":600,"easing":"cubic-bezier(0.4, 0.4, 0.0, 1)","fill":"both"}] [{"selector":"#anim-60812dc3-d11a-4bcc-aceb-cc0c512a7a9c","keyframes":{"opacity":[0,1]},"delay":0,"duration":1500,"easing":"cubic-bezier(0.4, 0.4, 0.0, 1)","fill":"both"}] [{"selector":"#anim-9dd1818a-1e7a-4ab7-b280-49a264c699b8","keyframes":{"opacity":[0,1]},"delay":0,"duration":500,"easing":"cubic-bezier(.3,0,.55,1)","fill":"both"}] [{"selector":"#anim-e1cec8a0-d6a4-4715-9740-54454cad87b5","keyframes":{"transform":["scale(0.3333333333333333)","scale(1)"]},"delay":0,"duration":500,"easing":"cubic-bezier(.3,0,.55,1)","fill":"forwards"}] PNRA/IPEV Uma equipe internacional de pesquisadores perfurou e recuperou com sucesso um núcleo de gelo de 2.800 metros de comprimento da Antártida, que data de 1,2 milhão de anos atrás

[{"selector":"#anim-7f6ce802-1cf4-4faf-877d-9632f20962b9","keyframes":{"opacity":[0,1]},"delay":0,"duration":600,"easing":"cubic-bezier(0.4, 0.4, 0.0, 1)","fill":"both"}] [{"selector":"#anim-261885dd-f142-4f3b-9f5a-7c0c7290996f","keyframes":{"opacity":[0,1]},"delay":0,"duration":1500,"easing":"cubic-bezier(0.4, 0.4, 0.0, 1)","fill":"both"}] [{"selector":"#anim-80844166-efc8-46bc-a16f-59bc4f1b9a0d","keyframes":{"opacity":[0,1]},"delay":0,"duration":500,"easing":"cubic-bezier(.3,0,.55,1)","fill":"both"}] [{"selector":"#anim-0359f85f-04ae-4ac7-b092-5f8a6dd445e7","keyframes":{"transform":["scale(0.3333333333333333)","scale(1)"]},"delay":0,"duration":500,"easing":"cubic-bezier(.3,0,.55,1)","fill":"forwards"}] A amostra se estendeu tão profundamente que atingiu a rocha matriz sob a camada de gelo antártica PNRA/IPEV

[{"selector":"#anim-2b800095-5c25-4875-bf06-e6804e66b05d","keyframes":{"opacity":[0,1]},"delay":0,"duration":600,"easing":"cubic-bezier(0.4, 0.4, 0.0, 1)","fill":"both"}] [{"selector":"#anim-4add5256-5fa7-425b-954a-8e0f6b2a2fba","keyframes":{"opacity":[0,1]},"delay":0,"duration":1500,"easing":"cubic-bezier(0.4, 0.4, 0.0, 1)","fill":"both"}] [{"selector":"#anim-369f8f3e-b70f-48cd-b3fc-aa2c8724e2ca","keyframes":{"opacity":[0,1]},"delay":0,"duration":500,"easing":"cubic-bezier(.3,0,.55,1)","fill":"both"}] [{"selector":"#anim-2893e574-34d0-435b-ab0b-c7916c482cf9","keyframes":{"transform":["scale(0.3333333333333333)","scale(1)"]},"delay":0,"duration":500,"easing":"cubic-bezier(.3,0,.55,1)","fill":"forwards"}] A equipe do projeto Beyond EPICA — Oldest Ice cortou o núcleo em pedaços de 1 metro, armazenados em caixas isoladas para que possam ser estudados PNRA/IPEV

[{"selector":"#anim-f50a516d-92e7-4006-8306-52a0a6e577e1","keyframes":{"opacity":[0,1]},"delay":0,"duration":600,"easing":"cubic-bezier(0.4, 0.4, 0.0, 1)","fill":"both"}] [{"selector":"#anim-ea252db7-c4ea-445f-9ca2-eaa634a3e7af","keyframes":{"opacity":[0,1]},"delay":0,"duration":1500,"easing":"cubic-bezier(0.4, 0.4, 0.0, 1)","fill":"both"}] [{"selector":"#anim-8d8d4a38-1a5e-480d-a1a5-cec9475a27a6","keyframes":{"opacity":[0,1]},"delay":0,"duration":500,"easing":"cubic-bezier(.3,0,.55,1)","fill":"both"}] [{"selector":"#anim-b325b5f4-f0d9-4ad0-b770-94548a6b3e0e","keyframes":{"transform":["scale(0.3333333333333333)","scale(1)"]},"delay":0,"duration":500,"easing":"cubic-bezier(.3,0,.55,1)","fill":"forwards"}] O núcleo foi coletado em Little Dome C , um dos locais mais hostis e extremos do planeta PNRA/IPEV

[{"selector":"#anim-22cd4242-54f4-4efd-8512-b539407fa631","keyframes":{"opacity":[0,1]},"delay":0,"duration":600,"easing":"cubic-bezier(0.4, 0.4, 0.0, 1)","fill":"both"}] [{"selector":"#anim-e3a6872e-84e6-4542-9eab-ca218a9085fe","keyframes":{"opacity":[0,1]},"delay":0,"duration":1500,"easing":"cubic-bezier(0.4, 0.4, 0.0, 1)","fill":"both"}] [{"selector":"#anim-7e9c6fcc-bb13-4556-8de4-766a9325dd33","keyframes":{"opacity":[0,1]},"delay":0,"duration":500,"easing":"cubic-bezier(.3,0,.55,1)","fill":"both"}] [{"selector":"#anim-dae65353-5824-4713-adf8-9035084fae41","keyframes":{"transform":["scale(0.3333333333333333)","scale(1)"]},"delay":0,"duration":500,"easing":"cubic-bezier(.3,0,.55,1)","fill":"forwards"}] Ele é constantemente atingido por fortes rajadas de vento e temperaturas quase constantes abaixo de -40 graus Celsius PNRA/IPEV

[{"selector":"#anim-6e74ec00-7891-415a-b4b2-f64580ae23ac","keyframes":{"opacity":[0,1]},"delay":0,"duration":600,"easing":"cubic-bezier(0.4, 0.4, 0.0, 1)","fill":"both"}] [{"selector":"#anim-0ae5cbf1-37af-4c5b-a8e8-adcb3ecad5c4","keyframes":{"opacity":[0,1]},"delay":0,"duration":1500,"easing":"cubic-bezier(0.4, 0.4, 0.0, 1)","fill":"both"}] [{"selector":"#anim-5863b040-0a3d-4928-b7fd-6e9f497e5df8","keyframes":{"opacity":[0,1]},"delay":0,"duration":500,"easing":"cubic-bezier(.3,0,.55,1)","fill":"both"}] [{"selector":"#anim-27fb6237-ffbb-4d0c-8f20-bf274eddeb9a","keyframes":{"transform":["scale(0.3333333333333333)","scale(1)"]},"delay":0,"duration":500,"easing":"cubic-bezier(.3,0,.55,1)","fill":"forwards"}] O gelo, um dos mais antigos já perfurados, pode fornecer respostas às maiores questões remanescentes sobre como o clima do planeta mudou ao longo do tempo PNRA/IPEV

DOIS1BRASIL.COM.BR

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