Early Earth
نویسنده
چکیده
منابع مشابه
Biostratigraphic Correlation of Elikah Formation in Zal Section (Northwestern Iran) with Ruteh and Type Sections in Alborz Mountains Based on Conodonts
Conodonts are the most important fossil remains from the largest Phanerozoic extinction as well as the mass extinction of the late Paleozoic and could be used for exact dating during this period. Triassic deposits located in the Elikah Formation contain exposures in most of the Alborz sections as well as the Zal section in northwestern Iran. In this study, the Elikah Formation was investigated ...
متن کاملPotential climatic impact of organic haze on early Earth.
We have explored the direct and indirect radiative effects on climate of organic particles likely to have been present on early Earth by measuring their hygroscopicity and cloud nucleating ability. The early Earth analog aerosol particles were generated via ultraviolet photolysis of an early Earth analog gas mixture, which was designed to mimic possible atmospheric conditions before the rise of...
متن کاملAbstracts for Th International Workshop on Meteorite Impact on Th Early Earth
S FOR TH INTERNATIONAL WORKSHOP ON METEORITE IMPACT ON TH EARLY EARTH
متن کاملComparative Study of Near- and Far-side Lunar Soils: toward the Understanding Early Evolution of the Earth
UNDERSTANDING EARLY EVOLUTION OF THE EARTH. Minoru Ozima, Qing-zhu Yin, Frank Podosek, and Yayoi Miura. Graduate School of Earth and Planetary Science, University of Tokyo, Tokyo 113-0033, Japan ([email protected]), Department of Geology, University of California, Davis, One Shields Avenue, Davis, CA 95616, USA, Department of Earth and Planetary Sciences, Washington University, St. Louis, MO...
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Most scenarios for the formation of the Moon place the Moon near Earth in low-eccentricity orbit in the equatorial plane of Earth. We examine the dynamical evolution of the Earth-Moon system from such initial conÐgurations. We Ðnd that during the early evolution of the system, strong orbital resonances are encountered. Passage through these resonances can excite large lunar orbital eccentricity...
متن کاملA cool early Earth?
No known rocks have survived from the first 500 m.y. of Earth history, but studies of single zircons suggest that some continental crust formed as early as 4.4 Ga, 160 m.y. after accretion of the Earth, and that surface temperatures were low enough for liquid water. Surface temperatures are inferred from high d18O values of zircons. The range of d18O values is constant throughout the Archean (4...
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