Armoured mud balls revisited

Auteurs-es

  • Lawrence H. Tanner Department of Geography and Earth Science, Bloomsburg University, Bloomsburg, Pennsylvania 17815, U.S.A.

DOI :

https://doi.org/10.4138/2082

Résumé

Armoured mud balls ranging in size from 2 to 20 cm in diameter (long axis) are common in the upper inter-tidal zone around Swan Creek, near Parrsboro, on the north shore of the Minas Basin. Shapes vary from nearly spherical to platy to elongate, with elongate predominant. The mud balls form from the action of wave and tidal currents transporting eroded masses of clay, as evidenced by the strike- and dip-parallel orientations of the mud balls with respect to the shore. RÉSUMÉ Les pelotes de vase blindées d’une taille de 2 à 20 cm de diamètre (axe longitudinal) sont répandues dans la zone intertidale supérieure voisine de Swan Creek, près de Parrsboro, sur la rive nord du bassin Minas. Lcur forme varie des pelotes quasi sphériques à celles aplaties et allongées, les pelotes allongées étant néanmoins prédominantes. Les pelotes de vase se forment par l’action des vagues et des courants de marée transportant des masses érodées d'argile, comme en font foi les orientations parallèles aux couches et aux inclinaisons magnétiques des pelotes de vase par rapport au rivage. [Traduit par la rédaction]

Téléchargements

Publié-e

1996-08-01

Comment citer

Tanner, L. H. (1996). Armoured mud balls revisited. Atlantic Geoscience, 32(2). https://doi.org/10.4138/2082

Numéro

Vol. 32 No. 2 (1996)

Rubrique

Articles

Licence

As of January 1, 2025, Atlantic Geoscience is adopting Creative Commons Attribution 4.0 International (CC BY 4.0)  This license requires that re-users give credit to the creator. It allows re-users to distribute, remix, adapt, and build upon the material in any medium or format, even for commercial purposes.

Copyright to material published in Atlantic Geoscience is normally retained by the author.  Alternate arrangements can be made on request for government employees.

Permission to use a single graphic for which the author owns copyright is considered “fair dealing” under the Canadian Copyright Act and “fair use” by the journal, and no other permission need be granted, subject to the image being appropriately cited in all reproductions. The same fair dealing/fair use policy applies to sections of text up to 100 words in length.