Armoured mud balls revisited

Authors

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

DOI:

https://doi.org/10.4138/2082

Abstract

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]

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Published

1996-08-01

How to Cite

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

Issue

Vol. 32 No. 2 (1996)

Section

Articles

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