منابع مشابه
Searching for Chips of Kuiper Belt Objects in Meteorites
M. Gounelle, T. Mikouchi, K. Ohsumi, M. K. Weisberg, L. Le, W. Satake & T. Kurihara, ARES, NASA Johnson Space Center, Houston, TX 77058, USA ([email protected]); Muséum National d’Histoire Naturelle, 57, rue Cuvier, 75005, Paris, France; University of Tokyo, Hongo, Bunkyo-ku, Tokyo 113-0033, Japan; Kingsborough Community College, Brooklyn, NY 11235, USA; Department of Earth and Planet...
متن کاملSiliceous microfossil succession in Lake Michigan
Quantitative analysis of siliceous microfossils in 210Pb-dated Lake Michigan sediments shows five time zones in microfossil abundance and composition. Sediments deposited before 1885 contain low abundances comprising species associated with very oligotrophic lakes. Between 1885 and 1925 abundance increases slowly as does the ratio of planktonic diatoms to benthic diatoms and chrysophyte remains...
متن کاملThe microfossil record of early land plants.
Dispersed microfossils (spores and phytodebris) provide the earliest evidence for land plants. They are first reported from the Llanvirn (Mid-Ordovician). More or less identical assemblages occur from the Llanvirn (Mid-Ordovician) to the late Llandovery (Early Silurian), suggesting a period of relative stasis some 40 Myr in duration. Various lines of evidence suggest that these early dispersed ...
متن کاملMetamorphosis of Cylinder-like Objects
A new technique is presented for computing continuous shape transformations between polyhedral objects. The correspondence and the interpolation problems are considered jointly as we construct and process on sampling polyhedral meshes of the objects. The approach is adapted to objects that are star-shaped around an axis. The process gives the animator a high level control over the shape transfo...
متن کاملAre verbs like inanimate objects?
One of the most compelling findings in aphasic research is that neurological impairment may affect words of one grammatical class more than others, for instance, verbs more than nouns (e.g., Miceli, Silveri, Villa, & Caramazza, 1984; McCarthy & Warrington, 1985) or vice versa (e.g., Bates, Chen, Tzeng, Li, & Opie, 1991; Zingeser & Berndt, 1988). The underlying mechanisms of such grammatical dis...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Earth-Science Reviews
سال: 1966
ISSN: 0012-8252
DOI: 10.1016/0012-8252(66)90012-2