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les premières personnes de l'Amérique en forme d'étoile d'élimination ? La nouvelle évidence suggère la cause extraterrestre pour la disparition de la culture de Clovis mongabay.com 17 mai 2007
« L'importance de cette découverte est si important, » des citations James Kennett, un palaeoceanographer de nature à l'université de la Californie, Santa Barbara (UCSB), comme disant. « Elle explique trois des polémiques haut-discutées des décennies récentes. » L'article indique que les présentations seront certainement controversées puisque les principales hypothèses expliquent déjà de diverses occurrences pendant la période.
La nouvelle évidence pour le tour cosmique des événements « vient sous forme d'analyse géochimique des couches sédimentaires à 25 emplacements archéologiques à travers l'Amérique du Nord - 9 d'entre eux Clovis, » Dalton continue. « Certains dispositifs des couches, indiquent l'équipe, suggèrent qu'ils contiennent des débris constitués par un impact extraterrestre. Ceux-ci incluent des spherules de verre et de carbone, et des quantités de l'iridium d'élément dit pour être trop hauts pour avoir commencé sur terre. En outre, les roches contiennent les couches noires de matériel carbonisé, que l'équipe dit sont les restes des feux de forêt qui ont envahi le continent après l'impact. » CITATION : Rex Dalton. (2007) Souffle dans le passé ? Nature le 16 MAI 2007 Cet article est basé sur un dégagement de nouvelles de l'université d'East Anglia Commentaires ? Si vous voudriez entrer en contact avec mongabay.com ou soumettre un commentaire au poteau sur cet article (en attendant l'approbation éditoriale), employer svp ce lien : Contact Options de nouvelles < b r > < b > P u b b l i c i t à < / b > < b r > < b r > < b r > < s c r i p t t y p e = " t e x t / j a v a s c r i p t " > < ! - - a m a z o n _ a d _ t a g = " m o n g a b a y - 2 0 " ; a m a z o n _ a d _ w i d t h = " 4 6 8 " ; a m a z o n _ a d _ h e i g h t = " 6 0 " ; a m a z o n _ a d _ l o g o = " h i d e " ; a m a z o n _ a d _ l i n k _ t a r g e t = " n e w " ; a m a z o n _ a d _ b o r d e r = " h i d e " ; a m a z o n _ c o l o r _ b o r d e r = " F F F F F F " ; a m a z o n _ c o l o r _ t e x t = " F F F F F F " ; a m a z o n _ c o l o r _ l i n k = " 0 3 7 6 2 D " ; a m a z o n _ c o l o r _ l o g o = " 4 9 9 5 3 0 " ; / / - - > < / s c r i p t > < s c r i p t t y p e = " t e x t / j a v a s c r i p t " s r c = " h t t p : / / w w w . a s s o c - a m a z o n . c o m / s / a d s . j s " > < / s c r i p t > < b r > < b r > < / T D > < T D W I D T H = " 2 0 " > < / T D > < T D A L I G N = " L E F T " V A L I G N = " T O P " W I D T H = " 8 " B G C O L O R = " i v o r y " > < / t d > < T D A L I G N = " L E F T " V A L I G N = " T O P " W I D T H = " 1 9 2 " B G C O L O R = " i v o r y " > < F O N T S I Z E = " 2 " F A C E = " A r i a l , H e l v e t i c a , V e r d a n a " > < b r > < b > M O N G A B A Y . C O M < / b > < b r > M o n g a b a y . c o m c e r c a d i s o l l e v a r e l ' i n t e r e s s e i n e l ' a p p r e z z a m e n t o d e l l e t e r r e e d e l l a f a u n a s e l v a t i c a s e l v a g g i e , m e n t r e e s a m i n a r e l ' e f f e t t o d i e m e r s i o n e t e n d e n e l c l i m a , n e l l a t e c n o l o g i a , n e l l ' e c o n o m i a e n e l l a f i n a n z a s u c o n s e r v a z i o n e e s u s v i l u p p o . < b r > < B r > M o l t i d i q u e s t i a r t i c o l i s o n o s t a t i t r a d o t t i a u t o m a t i c a m e n t e d a i n g l e s e a d i t a l i a n o . S e v o l e s t e a i u t a r e c o n l a t r a d u z i o n e , < A H R E F = " h t t p : / / w w w . m o n g a b a y . c o m / c o n t a c t . h t m " > m e t t e r s e l o i n c o n t a t t o c o n p r e g o < / a > . < a h r e f = h t t p : / / w o r l d . m o n g a b a y . c o m / i t a l i a n / > I l l u o g o d e i b a m b i n i < / a > è s t a t o t r a d o t t o p r o f e s s i o n a l m e n t e . < T A B L E B O R D E R = " 0 " C E L L P A D D I N G = " 0 " C E L L S P A C I N G = " 0 " W I D T H = " 1 9 2 " > < T R > < T D w i d t h = " 1 9 2 " V A L I G N = " T O P " C O L S P A N = 3 > < F O N T S I Z E = " 2 " F A C E = " A r i a l , H e l v e t i c a , V e r d a n a " > < B R > < B R > < B > Í N D I C E S < B R > < F O N T S I Z E = " 2 " F A C E = " A r i a l " > < A H R E F = " h t t p : / / w o r l d . m o n g a b a y . c o m / i t a l i a n / " s t y l e = " t e x t - d e c o r a t i o n : n o n e " P e r i b a m b i n i < / A > < B R > < ! - - A H R E F = " h t t p : / / f r . m o n g a b a y . c o m / f i s h / " s t y l e = " t e x t - d e c o r a t i o n : n o n e " > P o i s s o n s t r o p i c a u x < / A > < B R - - > < A H R E F = " h t t p : / / f r . m o n g a b a y . c o m / n e w s / r s s / " s t y l e = " t e x t - d e c o r a t i o n : n o n e " > S o g g e t t i < / A > < B R > < A H R E F = " h t t p : / / w w w . m o n g a b a y . c o m / " s t y l e = " t e x t - d e c o r a t i o n : n o n e " > I n g l e s e < / A > < B R > < A H R E F = " h t t p : / / w w w . m o n g a b a y . c o m / a b o u t . h t m " s t y l e = " t e x t - d e c o r a t i o n : n o n e " > A u t o r e < / A > [ I n g l ê s ] < B R > < A H R E F = " h t t p : / / w w w . m o n g a b a y . c o m / c o n t a c t _ m o n g a b a y . h t m " s t y l e = " t e x t - d e c o r a t i o n : n o n e " > C o n t a t t o < / A > [ I n g l ê s ] < B R > < / T D > < / T R > < ! - - T R > < T D w i d t h = " 9 7 " V A L I G N = " T O P " > < F O N T S I Z E = " 2 " F A C E = " A r i a l " > < A H R E F = " h t t p : / / p t . m o n g a b a y . c o m / r a i n f o r e s t s / " s t y l e = " t e x t - d e c o r a t i o n : n o n e " > F l o r e s t a s t r o p i c a i s < / A > < B R > < A H R E F = " h t t p : / / p t . m o n g a b a y . c o m / f i s h / " s t y l e = " t e x t - d e c o r a t i o n : n o n e " > P e i x e s t r o p i c a i s < / A > < B R > < A H R E F = " h t t p : / / w w w . w i l d m a d a g a s c a r . o r g / " s t y l e = " t e x t - d e c o r a t i o n : n o n e " > M a d a g a s c a r < / A > < B R > < A H R E F = " h t t p : / / e s . m o n g a b a y . c o m / t r a v e l / " s t y l e = " t e x t - d e c o r a t i o n : n o n e " > P i c t u r e s < / A > < B R > < A H R E F = " h t t p : / / k i d s . m o n g a b a y . c o m / " s t y l e = " t e x t - d e c o r a t i o n : n o n e " > K i d s ' S i t e < / A > < B R > < A H R E F = " h t t p : / / w o r l d . m o n g a b a y . c o m " s t y l e = " t e x t - d e c o r a t i o n : n o n e " > L a n g u a g e s < / A > < B R > < / T D > < T D w i d t h = " 3 " > < / T D > < T D w i d t h = " 9 2 " V A L I G N = " T O P " > < F O N T S I Z E = " 2 " F A C E = " A r i a l " > < A H R E F = " h t t p : / / w w w . m o n g a b a y . c o m / a b o u t . h t m " s t y l e = " t e x t - d e c o r a t i o n : n o n e " > S o b r e < / A > < B R > < A H R E F = " h t t p : / / w w w . m o n g a b a y . c o m / c o n t a c t _ m o n g a b a y . h t m " s t y l e = " t e x t - d e c o r a t i o n : n o n e " > C o n t a t o < / A > < B R > < A H R E F = " h t t p : / / w w w . m o n g a b a y . c o m / a r c h i v e s . h t m " s t y l e = " t e x t - d e c o r a t i o n : n o n e " > A r c h i v e s < / A > < B R > < A H R E F = " h t t p : / / w w w . m o n g a b a y . c o m / s u b m i s s i o n s . h t m " s t y l e = " t e x t - d e c o r a t i o n : n o n e " > S u b m i s s i o n s < / A > < B R > < A H R E F = " h t t p : / / n e w s . m o n g a b a y . c o m / n e w s l e t t e r s . h t m l " s t y l e = " t e x t - d e c o r a t i o n : n o n e " > N e w s l e t t e r < / A > < B R > < A H R E F = " h t t p : / / w w w . m o n g a b a y . c o m / c o n t r i b u t e . h t m " s t y l e = " t e x t - d e c o r a t i o n : n o n e " > C o n t r i b u t e < / A > < B R > < / T D > < / T R - - > < / T A B L E > < ! - - T A B L E B O R D E R = " 0 " C E L L P A D D I N G = " 0 " C E L L S P A C I N G = " 0 " W I D T H = " 1 9 2 " > < T R > < T D W I D T H = 1 8 7 V A L I G N = " T O P " > < F O N T S I Z E = " 2 " F A C E = " A r i a l , H e l v e t i c a , V e r d a n a " > < b R > < b r > < B > A P P U I < / b > < / i > < b r > A i d e r à s o u t e n i r m o n g a b a y p a r d e s c h o s e s a c h e t a n t e s d ' A m a z o n e . c o m . < b r > < b r > < A H R E F = " h t t p : / / w w w . a m a z o n . f r / r e d i r e c t - h o m e / ? & t a g = 4 n e w z c o m - 2 1 & c a m p = 5 1 4 & c r e a t i v e = 3 6 3 8 & l i n k C o d e = b n 1 & a d i d = 0 T J E T K P H V Z H 3 N 2 W N 6 Y 6 K & " > < I M G S R C = " h t t p : / / w w w . m o n g a b a y . c o m / i m a g e s / a m a z o n l o g o . g i f " B O R D E R = " 0 " a l t = " I n A s s o c i a t i o n w i t h A m a z o n . c o m " > < b r > < / b > < / a > < / t d > < T D W I D T H = " 5 " > < / T D > < / t r > < / T A B L E - - > < ! - - S e a r c h G o o g l e - - > < T A B L E B O R D E R = " 0 " C E L L P A D D I N G = " 2 " C E L L S P A C I N G = " 0 " W I D T H = " 2 0 0 " > < F O R M m e t h o d = G E T a c t i o n = h t t p : / / w w w . g o o g l e . c o m / c u s t o m > < T R > < T D V A L I G N = " T O P " > < / S P A N > < B R > < T R > < T D v A l i g n = t o p a l i g n = l e f t > < i n p u t t y p e = h i d d e n n a m e = s i t e s e a r c h v a l u e = " m o n g a b a y . c o m " > < ! - - F O N T S I Z E = " 2 " F A C E = " A r i a l , H e l v e t i c a , V e r d a n a " > < / i > < b > S E A R C H < / b > < b r > < / f o n t - - > < I N P U T T Y P E = t e x t n a m e = q s i z e = 2 0 m a x l e n g t h = 2 5 5 v a l u e = " " > < f o r m m e t h o d = " g e t " a c t i o n = " h t t p : / / w w w . g o o g l e . c o m / c u s t o m " t a r g e t = " g o o g l e _ w i n d o w " > < i n p u t t y p e = h i d d e n n a m e = s i t e s e a r c h v a l u e = " f r . m o n g a b a y . c o m " > < / i n p u t > < i n p u t t y p e = " h i d d e n " n a m e = " d o m a i n s " v a l u e = " n e w s . m o n g a b a y . c o m ; f r . m o n g a b a y . c o m ; m o n g a b a y . c o m " > < / i n p u t > < i n p u t t y p e = h i d d e n n a m e = c l i e n t v a l u e = ' p u b - 5 2 9 2 5 4 4 8 6 3 4 1 8 2 3 2 ' > < / i n p u t > < i n p u t t y p e = h i d d e n n a m e = f o r i d v a l u e = ' 1 ' > < / i n p u t > < i n p u t t y p e = " h i d d e n " n a m e = " c l i e n t " v a l u e = " p u b - 5 2 9 2 5 4 4 8 6 3 4 1 8 2 3 2 " > < / i n p u t > < i n p u t t y p e = h i d d e n n a m e = i e v a l u e = ' I S O - 8 8 5 9 - 1 ' > < / i n p u t > < i n p u t t y p e = h i d d e n n a m e = o e v a l u e = ' I S O - 8 8 5 9 - 1 ' > < / i n p u t > < i n p u t t y p e = " h i d d e n " n a m e = " c o f " v a l u e = " G A L T : # 0 0 8 0 0 0 ; G L : 1 ; D I V : # 0 0 6 6 C C ; V L C : 6 6 3 3 9 9 ; A H : c e n t e r ; B G C : F F F F F F ; L B G C : 6 6 9 9 0 0 ; A L C : 0 0 0 0 F F ; L C : 0 0 0 0 F F ; T : 0 0 0 0 0 0 ; G F N T : 0 0 0 0 F F ; G I M P : 0 0 0 0 F F ; L H : 2 4 ; L W : 1 5 9 ; L : h t t p : / / m o n g a b a y . c o m / i m a g e s / m o n g a b a y - 2 . j p g ; S : h t t p : / / w w w . m o n g a b a y . c o m ; F O R I D : 1 ; " > < / i n p u t > < i n p u t t y p e = " h i d d e n " n a m e = " h l " v a l u e = " e n " > < / i n p u t > < I N P U T t y p e = s u b m i t n a m e = s a V A L U E = ' S e a r c h ' > < / i n p u t > < / t d > < / T R > < / F O R M > < ! - - S e a r c h G o o g l e - - > < / T A B L E > < T A B L E B O R D E R = " 0 " C E L L P A D D I N G = " 2 " C E L L S P A C I N G = " 0 " W I D T H = " 1 9 2 " > < T R > < T D > < b r > < s c r i p t t y p e = " t e x t / j a v a s c r i p t " > < ! - - g o o g l e _ a d _ c l i e n t = " p u b - 5 2 9 2 5 4 4 8 6 3 4 1 8 2 3 2 " ; g o o g l e _ a l t e r n a t e _ a d _ u r l = " h t t p : / / p r i m a t e s . m o n g a b a y . c o m / a d s / a d s e n s e 1 6 0 - 2 . h t m l " ; g o o g l e _ a d _ w i d t h = 1 6 0 ; g o o g l e _ a d _ h e i g h t = 6 0 0 ; g o o g l e _ a d _ f o r m a t = " 1 6 0 x 6 0 0 _ a s " ; g o o g l e _ c o l o r _ b o r d e r = " F F F F F 0 " ; g o o g l e _ c o l o r _ b g = " F F F F F 0 " ; g o o g l e _ c o l o r _ l i n k = " 3 3 9 9 0 0 " ; g o o g l e _ c o l o r _ u r l = " 3 3 9 9 0 0 " ; g o o g l e _ c o l o r _ t e x t = " 0 0 0 0 0 0 " ; g o o g l e _ a d _ t y p e = " t e x t _ i m a g e " ; / / 2 0 0 7 - 0 5 - 1 0 : t - i t g o o g l e _ a d _ c h a n n e l = " 6 4 9 4 7 3 1 5 7 7 " ; / / - - > < / s c r i p t > < s c r i p t t y p e = " t e x t / j a v a s c r i p t " s r c = " h t t p : / / p a g e a d 2 . g o o g l e s y n d i c a t i o n . c o m / p a g e a d / s h o w _ a d s . j s " > < / s c r i p t > < b r > < b r > < ! - - s h i r t s - - > < b r > < b r > < f o n t f a c e = v e r d a n a s i z e = 2 > < B > < i > T - S H I R T S < / i > < / A > < B R > < / B > < c e n t e r > < a h r e f = h t t p : / / w w w . m o n g a b a y . c o m / s h i r t s . h t m # m a d a g a s c a r s t y l e = " t e x t - d e c o r a t i o n : n o n e " > < i m g s r c = h t t p : / / w w w . m o n g a b a y . c o m / i m a g e s / m e d i a / s h i r t - m a d a g a s c a r _ w i l d l i f e _ f f f f f 0 . j p g b o r d e r = 0 > < b r > M a d a g a s c a r W i l d l i f e < b r > S a v e M a d a g a s c a r < / a > < b r > < b r > < a h r e f = h t t p : / / w w w . m o n g a b a y . c o m / s h i r t s . h t m # p e r u s t y l e = " t e x t - d e c o r a t i o n : n o n e " > < i m g s r c = h t t p : / / w w w . m o n g a b a y . c o m / i m a g e s / m e d i a / t s h i r t 2 _ F F F F F 0 . j p g b o r d e r = 0 > < b r > S u c k i n g o n t h i s f r o g < b r > m a y m a k e y o u i n s a n e < / a > < b r > < b r > < a h r e f = h t t p : / / w w w . m o n g a b a y . c o m / s h i r t s . h t m # m a d a g a s c a r s t y l e = " t e x t - d e c o r a t i o n : n o n e " > < i m g s r c = h t t p : / / w w w . m o n g a b a y . c o m / i m a g e s / m e d i a / t s h i r t 4 _ F F F F F 0 . j p g b o r d e r = 0 > < b r > I n M a d a g a s c a r t h e r e a r e < b r > l e m u r s t h a t d a n c e < / a > < b r > < b r > < a h r e f = h t t p : / / w w w . m o n g a b a y . c o m / s h i r t s . h t m # p e r u s t y l e = " t e x t - d e c o r a t i o n : n o n e " > < i m g s r c = h t t p : / / w w w . m o n g a b a y . c o m / i m a g e s / m e d i a / t s h i r t 5 _ F F F F F 0 . j p g b o r d e r = 0 > < b r > D o n ' t f a l l a s l e e p < b r > t h e s l o t h s w i l l < b r > e a t y o u < / a > < b r > < b r > < / c e n t e r > < / T D > < / T R > < / T A B L E > < / P > < / T D > < / T R > < / T A B L E > < / T D > < / T R > < / T A B L E > < ! - - b e g i n f o o t e r t a b l e - - > < T A B L E B O R D E R = " 0 " C E L L P A D D I N G = " 0 " C E L L S P A C I N G = " 0 " W I D T H = " 1 0 0 % " > < T R B G C O L O R = " # 2 4 2 4 2 4 " > < T D > < p a l i g n = " c e n t e r " > < F O N T S I Z E = " 1 " F A C E = " V e r d a n a " c o l o r = F F F F F F > < b r > < b r > < A H R E F = " h t t p : / / w w w . m o n g a b a y . c o m / c o p y r i g h t . h t m " > < f o n t c o l o r = F F F F F F > C o p y r i g h t < / a > < A H R E F = " h t t p : / / w w w . m o n g a b a y . c o m / a b o u t . h t m " c o l o r = F F F F F F > < f o n t c o l o r = F F F F F F > m o n g a b a y < / a > < A H R E F = " h t t p : / / w w w . m o n g a b a y . c o m / c o p y r i g h t . h t m " > < f o n t c o l o r = F F F F F F > 2 0 0 7 < / F O N T > < / A > < b r > < b r > < b r > < / T D > < / t r > < / T A B L E > < / F O R M > < s c r i p t s r c = " h t t p : / / w w w . g o o g l e - a n a l y t i c s . c o m / u r c h i n . j s " t y p e = " t e x t / j a v a s c r i p t " > < / s c r i p t > < s c r i p t t y p e = " t e x t / j a v a s c r i p t " > _ u a c c t = " U A - 2 3 9 5 8 9 - 2 7 " ; u r c h i n T r a c k e r ( ) ; < / s c r i p t > < / B O D Y > < / H T M L > |
