THE JURASSIC WEALDEN (TITHONIAN) OF ENGLAND
نویسندگان
چکیده
منابع مشابه
Paleoclimate of the Kimmeridgian/Tithonian (Late Jurassic) world: II. Sensitivity tests comparing three different paleotopographic settings
Moore, G.T., Sloan, L.C., Hayashida, D.N. and Umrigar, N.P., 1992. Paleoclimate of the Kimmeridgian/Tithonian (Late Jurassic) world: II. Sensitivity tests comparing three different paleotopographic settings. Palaeogeogr,, Palaeoclimatol., Palaeoecol., 95: 229-252. Topography and location of continents largely determine present-day climate. We conclude that in the geologic past paleotopographic ...
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Isotope data from bulk carbonates, micrite, marine calcite cements, non-skeletal grains and brachiopods indicate deposition of a wide spectrum of warm to cold water carbonates during the Ordovician and the Jurassic. This isotopic interpretation is supported by warm to cold climatic models proposed for the Ordovician and the Jurassic. These carbonates formed during the Greenhouse mode (condition...
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Based on material from the uppermost Tithonian La Caja Formation at Puerto Piñones, northeastern Mexico, the complete ontogenetic development (protoconch to adult) of the ammonite Salinites grossicostatum is outlined by a detailed morphometrical shell analysis. The embryonic stage, consisting of a small ellipsoid protoconch and ammonitella, ends at about 0.6 mm. Four major morphological changes...
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ژورنال
عنوان ژورنال: Science
سال: 1897
ISSN: 0036-8075,1095-9203
DOI: 10.1126/science.5.108.149