Deutsch
 
Hilfe Datenschutzhinweis Impressum
  DetailsucheBrowse

Datensatz

DATENSATZ AKTIONENEXPORT
  Crystallography and textural aspects of crossed lamellar layers in Arcidae (Bivalvia, Mollusca) shells

Almagro, I., Drzymała, P., Rodríguez-Navarro, A. B., Sainz-Díaz, C. I., Willinger, M. G., Bonarski, J., et al. (2016). Crystallography and textural aspects of crossed lamellar layers in Arcidae (Bivalvia, Mollusca) shells. Key Engineering Materials, 672, 60-70. doi:10.4028/www.scientific.net/KEM.672.60.

Item is

Basisdaten

einblenden: ausblenden:
Genre: Zeitschriftenartikel

Dateien

einblenden: Dateien
ausblenden: Dateien
:
Sometido.pdf (beliebiger Volltext), 594KB
Name:
Sometido.pdf
Beschreibung:
-
OA-Status:
Sichtbarkeit:
Öffentlich
MIME-Typ / Prüfsumme:
application/pdf / [MD5]
Technische Metadaten:
Copyright Datum:
2016
Copyright Info:
TransTech Publ.
Lizenz:
-

Externe Referenzen

einblenden:

Urheber

einblenden:
ausblenden:
 Urheber:
Almagro, Io1, Autor
Drzymała, Piotr2, Autor
Rodríguez-Navarro, Alejandro B.1, Autor
Sainz-Díaz, C. Ignacio3, Autor
Willinger, Marc Georg4, Autor           
Bonarski, Jan2, Autor
Checa, Antonio1, Autor
Affiliations:
1Departmento de Estratigrafia y Paleontologia, Facultad de Ciencias, Universidad de Granada, Avenida Fuentenueva s/n, 18071 Granada, Spain, ou_persistent22              
2Institute of Metallurgy and Science of the Polish Academy of Science, 25 Reymonta Str., 30-059 Krakow, Poland, ou_persistent22              
3Instituto Andaluz de Ciencias de la Tierra (CSIC), Avda. de Las Palmeras n°4, 18100. Armilla, Granada, Spain, ou_persistent22              
4Inorganic Chemistry, Fritz Haber Institute, Max Planck Society, ou_24023              

Inhalt

einblenden:
ausblenden:
Schlagwörter: -
 Zusammenfassung: Bivalve shell microstructures are important traits that can be used for evolutionary and phylogenetic studies. Here we examine the crossed lamellar layers forming the shells of the arcoids, Arca noae, Glycymeris glycymeris and Glycymeris nummaria in order to better understand the crystallography of this complex biomaterial. Textural aspects and crystallography of the outer crossed lamellar layer of these species have been clarified using high-resolution electron microscopy and X-ray diffraction (XRD) techniques. These shells are made of aragonite crystals in a crossed lamellar arrangement with a high preferred crystal orientation (texture). The distribution of maxima in the pole figures implies that there is not a single crystallographic pattern within the measured area, but a continuous variation between two classes of distinct patterns. In the first of these, there is a set of four crystal orientations (referred to as upper set). These four crystal orientations are distributed in two pairs (which are coplanar), with the crystals of each pair being twinned on {110}. The pairs are tilted with respect to each other by approximately 20-40º around an axis perpendicular to the {110} common twinning plane. In the second pattern (referred to as lower set), the crystal orientations of each pair are rotated around a <–110> direction until the a-axes of the diametrically opposing crystal orientations of two different twinned pairs become parallel. As a result of this rotation, in the lower set the crystal orientations no longer form pairs twinned on {110}.These crystallographic relationships are unknown in inorganic aragonite. Our results are similar to those reported for the neogastropod Conus marmoreus. Thus, the common crossed lamellar crystallography in the arcoid bivalves and in C. marmoreus is a striking example of convergence in the development of crossed lamellar microstructures.

Details

einblenden:
ausblenden:
Sprache(n):
 Datum: 2015-05-302015-01-072015-05-302016-01-15
 Publikationsstatus: Online veröffentlicht
 Seiten: 11
 Ort, Verlag, Ausgabe: -
 Inhaltsverzeichnis: -
 Art der Begutachtung: Expertenbegutachtung
 Art des Abschluß: -

Veranstaltung

einblenden:

Entscheidung

einblenden:

Projektinformation

einblenden:

Quelle 1

einblenden:
ausblenden:
Titel: Key Engineering Materials
Genre der Quelle: Zeitschrift
 Urheber:
Affiliations:
Ort, Verlag, Ausgabe: Aedermannsdorf, Switzerland : Trans Tech Publications
Seiten: 11 Band / Heft: 672 Artikelnummer: - Start- / Endseite: 60 - 70 Identifikator: ISSN: 1013-9826
CoNE: https://pure.mpg.de/cone/journals/resource/954928607151