calcareous
91Orjen — Mount Orjen from the North (6 June 2001) Elevation 1,894 m (6,214 ft) …
92Eastern Alps — is the name given to the eastern half of the Alps, usually defined as the area east of the Splügen Pass in eastern Switzerland. North of the Splügen Pass, the Posterior Rhine forms the border, and south of the pass, the Liro river and Lake Como… …
93Carbonate Compensation Depth — (CCD) is the depth in the oceans below which the rate of supply of calcium carbonate (calcite and aragonite) equals the rate of solvation, such that no calcium carbonate is preserved. Calcium carbonate is essentially insoluble in sea surface… …
94Geology of the Australian Capital Territory — Australia grew around three fused pieces of very ancient continental crust (cratons). The geology of the Australian Capital Territory includes rocks dating from the Ordovician around 480 million years ago, whilst most rocks are from the Silurian …
95Orange (fruit) — Orange Orange blossoms and oranges on tree …
96Crook Peak to Shute Shelve Hill — Site of Special Scientific Interest …
97Marcellus Formation — Stratigraphic range: Middle Devonian …
98Love dart — SEM image of lateral view of a love dart of the land snail Monachoides vicinus. The scale bar is 500 μm (0.5 mm) …
99Archaeocyathid — /ahr kee oh suy euh thid, ahr kee euh /, n. one of the marine invertebrates of the extinct phylum Archaeocyatha, widely distributed during the Cambrian Period, having a limy, typically conical or cylindrical skeleton composed of sievelike inner… …
100geology — /jee ol euh jee/, n., pl. geologies. 1. the science that deals with the dynamics and physical history of the earth, the rocks of which it is composed, and the physical, chemical, and biological changes that the earth has undergone or is… …
