North Stradbroke Island

Laycock, J. M. North Stradbroke Island. Brisbane: University of Queensland Press, 1978.

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Read with bookreader  Dept_Geology_Papers_VIII_2_1_p89_96.pdf Full text (open access) application/pdf 601.76KB 100
Author Laycock, J. M.
Title North Stradbroke Island
Place of Publication Brisbane
Publisher University of Queensland Press
Publication year 1978
Sub-type Other
Open Access Status File (Publisher version)
Series Papers (University of Queensland. Dept. of Geology) ; v. VIII no. 2. p.89_96
Language eng
Start page 89
End page 96
Total number of pages 8
Collection year 1978
Subjects 260100 Geology
Formatted Abstract/Summary

The islands bordering Moreton Bay to its east are vegetated dunes formed during a past period of intense wind activity. Aeolian sand, as indicated by drilling, occurs to considerable depth below sea level. There is also evidence of sub-aerial weathering in bedrock samples and this implies subsequent drowning of the land surface. The occurrence of colouration (red, brown, grey) in much of the dune mass is thought to be due to decomposition of some of the disseminated heavy minerals - the older more leached dune sand being quite white in appearance. Of particular interest is the occurrence within the dunes of white argillaceous and black humate cemented sands, which have formed at the groundwater surface on inter-ception of downward percolating products of leaching.

Keyword Geology -- Queensland -- North Stradbroke Island
Geology -- Australia -- North Stradbroke Island (Qld.)
Q-Index Code AX
Q-Index Status Provisional Code
Institutional Status Unknown
Additional Notes "Australasian Sedimentologists Group. First Queensland meeting, August, 1977." Includes bibliographical references.

 
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