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Uranium and thorium abundance measurements across the Cretaceous-Tertiary boundary in Colorado, U.S.A.

✍ Scribed by R.W. Holloway; D.E. Farmer

No coin nor oath required. For personal study only.

📜 SIMILAR VOLUMES

Uranium at the Cretaceous-Tertiary bound

✍ Helmar Kunzendorf; Rajmond Gwozdz; Hans Jørgen Hansen 📂 Article 📅 1990 🏛 John Wiley and Sons 🌐 English ⚖ 861 KB

Palynological evidence of floristic chan

✍ Hall, John W.; Norton, Norman J. 📂 Article 📅 1967 🏛 Elsevier Science 🌐 English ⚖ 518 KB

Leaf Assemblages across the Cretaceous-T

✍ Jack A. Wolfe and Garland R. Upchurch 📂 Article 📅 1987 🏛 National Academy of Sciences 🌐 English ⚖ 990 KB

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✍ Lucas, S.G. 📂 Article 📅 1983 🏛 Elsevier Science 🌐 English ⚖ 273 KB

Patterns of molluscan extinction and rec

✍ Thor A. Hansen; Banks Upshaw III; Erle G. Kauffman; Wuff Gose 📂 Article 📅 1993 🏛 Elsevier Science 🌐 English ⚖ 787 KB

Changes in coiling direction of Cibicido

✍ Simone Galeotti; Rodolfo Coccioni 📂 Article 📅 2002 🏛 Elsevier Science 🌐 English ⚖ 675 KB