Models for the morphology and morphogenesis of the ammonoid shell

dc.contributor.advisor	Westermann, G.E.G.	en_US
dc.contributor.author	Vicencio, Raul	en_US
dc.contributor.department	Geology	en_US
dc.date.accessioned	2014-06-18T17:00:40Z
dc.date.available	2014-06-18T17:00:40Z
dc.date.created	2009-07-31	en_US
dc.date.issued	1973-05	en_US
dc.description.abstract	<p>The process of accretionary growth in molluscs is examined and a new growth equation suitable for accretionary growth is proposed and derived. The morphology of the shell in the Ammonoidea (Mollusca, Cephalopoda) is described and the morphogenesis simulated by means of theoretical models. In the case of the characterization of morphology, the shell is described by a set of objective descriptors that can be used in taxonomy. The morphogenesis of the ammonoid shell is explained in terms of static equilibrium of the secreting mantle and a diffusive process that mediates the actual precipitation of shell material on the growing edge of the shell. Different morphologies arise from varying the boundary conditions in the resulting differential equations.</p>	en_US
dc.description.degree	Doctor of Philosophy (PhD)	en_US
dc.identifier.other	opendissertations/76	en_US
dc.identifier.other	1538	en_US
dc.identifier.other	917950	en_US
dc.identifier.uri	http://hdl.handle.net/11375/12739
dc.subject	Geology	en_US
dc.subject	Geology	en_US
dc.title	Models for the morphology and morphogenesis of the ammonoid shell	en_US
dc.type	thesis	en_US

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