Carbon-cycle perturbation in the Middle Jurassic and accompanying changes in the terrestrial paleoenvironment
Carbon-isotope analyses of fossil wood from the Middle Jurassic Ravenscar Group, Yorkshire, NE England, reveal a significant excursion toward light isotopic values (δ13C change of -3 to -4‰) at about the Aalenian-Bajocian boundary (∼174 Ma). A positive carbon isotopic excursion is also shown for the...
Главные авторы: | Hesselbo, S, Morgans-Bell, H, McElwain, J, Rees, P, Robinson, SA, Ross, C |
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Формат: | Journal article |
Язык: | English |
Опубликовано: |
2003
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