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Bi An Ve Thung Lung Chet O XIBIA

Bi An Ve Thung Lung Chet O XIBIA Rai rac tren khu vuc rong lon it nguoi tai thung lung Yakutia Xibia, nguoi ta co the bat gap cac tam kim loai co cau truc la giong nhu bang chung cua cac vu no bom nguyen tu. Chung chi la mot trong so it cac dau hieu ve nhung hien tuong la o noi day. Nam o phia tay bac Yakutia, Xibia, gan thuong luu song Viliuy co mot thung lung ky la, noi in dau vet cua nhieu su bien doi lon ve dia chat trong long dat xay ra cach day hang tram nam. O khu vuc nay, nguoi ta con tim thay cac manh kim loai la nam sau duoi lop dat ma cho den nay, cac nha khoa hoc van chua the xac dinh duoc thanh phan hoa hoc cua chung. Ten goi theo tieng dia phuong cua vung dat nay la Uliuiu Cherkechekh, con goi la "Thung lung chet". Khu vuc nay trai rong tren mot dien tich hon 100 nghin km2, duoc bao phu boi cac canh rung taiga rong lon voi rat nhieu dam lay, cac mieng nui lua va la noi han in dau vet cua cac vu va cham thien thach voi Trai dat. Xua kia, vung dat nay la noi qua lai cua nhung nguoi dan du muc Evenk. Ho den tu Bodaibo, qua Annybar de ra bien Laptev. Nhung nguoi du muc ke lai rang, ho thuong thay nhung tam kim loai co mau sac giong nhu dong, nhung rat cung va sac, co the cat duoc cac kim loai khac mot cach de dang. Moi tam co duong kinh tu 6 den 9 met. Bao phu ben ngoai lop vo kim loai la mot lop giong nhu bot mai. Khi dung dao de cua vao no, nguoi ta khong thay bat ky mot vet xuoc nao de lai tren be mat. Qua phan tich, cac nha khoa hoc nhan thay nhung tam kim loai nay la manh vo cua cac khoi cau hinh tron lon chua du nhieu nguoi o ben trong. Nam 1936, trong luc tham hiem Thung Lung chet, mot nha dia chat hoc Nga da phat hien ra mot khoi ban cau bang kim loai co sac do, nho len tu mat dat. Khoi ban cau nay du lon de chua hai nguoi nam gon ben trong. Khi do, nha dia chat chua co du dung cu do dac can thiet cung nhu kien thuc de xac dinh do la cai gi. Den nam 1979, mot nhom khao co khac den noi nay cung nha dia chat no, thi mat dat o do da trong tron. Nhung nguoi dan song o gan Thung lung chet ke rang ho da tan mat chung kien nhieu hien tuong la xay ra o khu vuc, nhu cac khoi cau khong lo bay len tu long dat, phat no va ban ra cac manh kim loai tren, hien tuong set kho, set hon va dau vet de lai cua cac vu va cham thien thach den tu ngoai trai dat. Nhieu nguoi cho biet ho da tan mat chung kien cac khoi cau lua lon hinh nam boc len troi giong nhu vu no cua mot qua bom hat nhan. Dac biet, nguoi ta nhan thay o day cay co moc khong giong cay co tu nhien. Chung rat xanh tot, la rong hon binh thuong va co rat nhieu nhanh. Co cung rat lon va co chieu cao gap doi than nguoi. Mot trong nhung truyen thuyet ky la nhat ve Thung lung chet duoc nhung nguoi dan du muc Yakut ke lai rang: "vao mot ngay no, giua long thung lung dot nhien bi bao phu boi cac dam may mu xam xit va bi set danh du doi. Mot con loc xoay khong lo boc len tu duoi mat dat, bui bay mu mit hang tram dam. Sau khi moi thu tro lai binh thuong va nhung dam may den tan di, nhung nguoi du muc nhin thay nho len tu duoi mat dat mot hinh chop thang dung khong lo ma mat thuong co the nhin thay duoc tu khoang cach hang tram dam. Vat the la nay co mau do giong mau dong va phat ra nhung am thanh rat choi tai. It lau sau, no bien mat duoi long dat sau, de lai mieng ho khong lo co ban kinh rong den 200 met. Nguoi ta ke rang, bat cu ai to mo muon den gan mieng ho xem dieu gi da xay ra deu khong bao gio quay tro lai. Sau do o khu vuc nay xuat hien cac khoi cau lua khong lo vot len tu duoi mat dat. Khi cham dat, chung gay ra cac tieng no khung khiep va tao ra cac ho sau den 100 met o khu vuc nui bao quanh thung lung. Sau khi xay ra cac vu no tren, nhung nguoi dan du muc phai roi bo noi nay de tim den cac vung dat an toan hon cho cuoc song cua ho. Theo cac nha khoa hoc, nhung vu no ky la trong truyen thuyet tren rat giong voi cac vu no hat nhan ngay nay. Ho cung phat hien ra rang, nhung tan tich con sot lai o "Thung lung chet" co nhieu diem gan giong voi nhung bi an cua nen van minh co dai Maya o Mexico (da bien mat tu nam 830 sau anh huong cua mot vu no duoc tao ra boi mot suc manh bi an ma cho den nay van chua ro nguyen nhan). Dac biet, o Thung lung chet vao mot so thoi diem nhat dinh trong ngay, cac nha khoa hoc da do duoc muc phong xa cao hon binh thuong tu duoi long dat. Cac nha khoa hoc cho rang, an sau duoi lop dat cua Thung lung chet ton tai su hoat dong manh cua cac dong tu truong. Do truoc day quan doi Lien Xo da chon noi nay de thu nghiem vu khi hat nhan nen tru luong phong xa con sot lai ket hop voi tu truong trong dat da khien cho vung nay bi nhiem xa nang. Mac du vay, nguoi ta van chua giai thich duoc nguon goc cua cac tam kim loai la duoc tim thay o day va chua phan tich duoc thanh phan hoa hoc cua no. Mot so nguoi tham chi cho rang day chinh la manh vo cua cac dia bay den tu ngoai Trai dat, vi nhieu nguoi o khu vuc nay da tan mat chung kien cac vat the la phat sang bay len tu long thung lung. Cho den nay, nhung bi an ve vung dat nay van chua duoc sang to. Source : hoangclub.vnArticle source http://w4rum.com/2463.t

[By Nguyen Quan] [05/May/07]
  
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