Difference between revisions of "Agglutinated"

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[[File:Fig 06.jpg|thumb|<font size="2">'''Fig. 1.''' Agglutination in foraminiferan walls; Gulf of Aqaba, Red Sea; Recent.
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[[File:Fig.6.png|thumb|<font size="2">'''Fig. 1.''' Agglutination in foraminiferan walls; Gulf of Aqaba, Red Sea; Recent.
'''A-C''': ''Textularia sp''. C in Hottinger et al., 1993. '''A''': Lateral view showing coarse grains producing a rugged shell surface exept on apertural face. SEM. '''B''': axial thin section of the biserial test showing distribution of agglutinated grains within the shell walls. Light microscope, transparent light. '''C''': Detail from another specimen showing parapore texture of wall and its relation to the agglutinated grains. Transmitted light. '''D-G''': ''Agglutinella sp''., an agglutinating, porcelaneous miliolid. '''D''': lateral view showing coarse agglutination at the shell's suface. '''E''': apertural view showing large aperture with a porcelaneous peristomal rim and a miliolid tooth. SEM. '''F-G''': ''Schlumbergerina alveoliniformis'' (Brady), thin sections in the - and perpendicular to the - apertural axis, showing early growth stages without apparent agglutination and a very thin basal layer coating the rugged surface of adult chambers of the previous whorl. Transmitted light.
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'''A-C''': ''Textularia sp''. C in Hottinger et al., 1993. '''A''': Lateral view showing coarse grains producing a rugged shell surface exept on apertural face. SEM. '''B''': axial thin section of the biserial test showing distribution of agglutinated grains within the shell walls. Light microscope, transparent light. '''C''': Detail from another specimen showing parapore texture of wall and its relation to the agglutinated grains. Transmitted light.  
'''a''': [[aperture]]; '''bl''': basal layer; '''f''': [[foramen]]; '''mt''': miliolid tooth; '''pp''': [[parapores]]; '''pr''': [[proloculus]]; '''s''': [[septum]]; '''sut''': (chamber) [[suture]]; '''tph''': [[trematophore]]; (Hottinger, 2006; fig. 6 [http://paleopolis.rediris.es/cg/CG2006_M02/index.html] '''CC'''/BY-NC-SA)]]
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'''a''': [[aperture]]; '''f''': [[foramen]]; '''pp''': [[parapores]]; '''pr:''' [[proloculus]]'''s''': [[septum]]; '''sut''': (chamber) [[suture]]; (Hottinger, 2006; fig. 6a-c [http://paleopolis.rediris.es/cg/CG2006_M02/index.html] '''CC'''/BY-NC-SA)]]
 
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==Definition==
 
==Definition==

Revision as of 14:34, 29 March 2019

Fig. 1. Agglutination in foraminiferan walls; Gulf of Aqaba, Red Sea; Recent. A-C: Textularia sp. C in Hottinger et al., 1993. A: Lateral view showing coarse grains producing a rugged shell surface exept on apertural face. SEM. B: axial thin section of the biserial test showing distribution of agglutinated grains within the shell walls. Light microscope, transparent light. C: Detail from another specimen showing parapore texture of wall and its relation to the agglutinated grains. Transmitted light. a: aperture; f: foramen; pp: parapores; pr: proloculuss: septum; sut: (chamber) suture; (Hottinger, 2006; fig. 6a-c [1] CC/BY-NC-SA)

Definition

  • according to Hottinger (2006):

AGGLUTINATED - shell texture characterized by components gathered in the ambient environment and bound by organic or biomineralized cements produced by the cell. Particles may be selected according to size and shape to form a closefitting mosaic. Often, the agglutination in the external and internal parts of the wall is differentiated but there are no sharp boundaries. See also: wall polarity).


See also

References

Hottinger (2006), Illustrated glossary of terms used in foraminiferal research. Carnets de Géologie, Memoir 2, ISSN 1634-0744






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