
TY  - JOUR
A1  - Bird, K. J. 
A1  - Coleman, W. F. 
A1  - Crocker, H. 
T1  - THE DEPOSITIONAL HISTORY OF A PORTION OF THE NORTH PERTH BASIN&#x2014;A SINGLE WELL DIPMETER ANALYSIS
JF  - The APPEA Journal
JO  - The APPEA Journal
Y1  - 1971
VL  - 11
IS  - 1
SP  - 90
EP  - 94
KW  - 
UR  - https://doi.org/10.1071/AJ70016 
N2  - Four-arm dipmeter interpretation has been integrated with other wireline logs, lithologic and palaeontologic data, and regional geology to arrive at a history of the deposition in a portion of the North Perth Basin.The Permian sediments were deposited in a moderate to low energy, paralic to marine environment. They were unconformably overlain by a thin transgressive Lower Triassic sand and deepwater marine shale. The Middle Triassic sediments were deposited as a regressive marine sequence under the influence of a strong southwesterly uplift, and culminated in piedmont talus deposits of Upper Triassic age.In the Lower Jurassic this area evolved through a flood-plain environment to a paralic environment with a northeast-southwest oriented coastline and a northern source area. During the Middle Jurassic gentle crustal movements, coupled with an increasingly active northern and eastern source area, resulted in several cycles of nearshore deposition, and finally a marine transgression.Subsequent violent tectonic uplift to the east in the Upper Jurassic produced massive first generation sands which were deposited in a mainly continental environment. 
ER  -

