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Abstract

Observations of the relationship between linear
or planar features on either side of dykes usually
form the basis of a field determination of their
mode of emplacement, although it is known that
sections oblique to planar features may lead to conflicting
results. In Eastern Tasmania only rarely
are examples encountered where dyke wall-rock
units are of use. However, dyke wall irregularities
are common and a comparison of opposite walls
have shown the dykes to be intrusive. Disproportionate
offsets of corresponding wall irregularities
due to connecting cross-dykes are general,
which results in intrusive bodies resembling those
of a replacement origin.

Item Type:	Article
Authors/Creators:	Williams, E and Groves, DI
Keywords:	Royal Society of Tasmania, RST, Van Diemens Land, natural history, science, ecology, taxonomy, botany, zoology, geology, geography, papers & proceedings, Australia, UTAS Library
Journal or Publication Title:	Papers and Proceedings of the Royal Society of Tasmania
ISSN:	0080-4703
Collections:	Royal Society Collection > Papers & Proceedings of the Royal Society of Tasmania
Additional Information:	Copyright Royal Society of Tasmania
Item Statistics:	View statistics for this item

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