Please Note:

The Open Access Repository will be moving to a new authentication system on the 1st of November.

From this date onwards, account holders will be required to login using their University of Tasmania credentials.
If your current repository username differs from your University username, please email so we can update these details on your behalf.

Due to the change, there will be a short outage of the repository from 9am on the morning of the 1st of November

Open Access Repository

The nature of jointing, Tasman Peninsula, southern Tasmania


Downloads per month over past year

Leaman, DE (1999) The nature of jointing, Tasman Peninsula, southern Tasmania. Papers and Proceedings of the Royal Society of Tasmania, 133 (1). pp. 65-76. ISSN 0080-4703

1999_Leaman_The...pdf | Download (512kB)
Available under University of Tasmania Standard License.


Existing literature describing the joints in high dolerite cliffs and at the Tessellated Pavement on the Tasman Peninsula offers conflicting
views concerning their origin. Recent writers have preferred a tectonic origin. Although regional structures do affect both pavement and
cliffrocks, these are not pervasive at outcrop scale. The rock pillars of the high cliffs are true, thermally produced columns, and their nature
can be demonstrated by direct inspection of polygons. Polygon faces are not readily identified in collections of joint measurements, but
some common orientations have been united in cliff exposure to yield ragged lineaments. This yields the illusion of more recent tectonic
control, although many such orientations are clearly at least Jurassic in age. The apparently regular patterns of the pavements are regionally
variable, and joint continuity and orientation are complex functions of lithology, bed thickness and pre-stressing, with new joints forming
due to relaxation and weathering processes. Pavement joints are generally very recent although they too replicate much older structural
trends controlled by east-west shears. Pavement ornamentation provides fine examples of physical and chemical weathering processes.

Item Type: Article
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
Page Range: pp. 65-76
ISSN: 0080-4703
Collections: Royal Society Collection > Papers & Proceedings of the Royal Society of Tasmania
Additional Information:

Copyright Royal Society of Tasmania

Date Deposited: 22 May 2012 02:17
Last Modified: 15 Sep 2017 01:06
Item Statistics: View statistics for this item

Actions (login required)

Item Control Page Item Control Page