The Narrabeen Group in the east-central Sydney Basin: physical properties and interpretation

被引：2
|
作者：
Emerson, Donald W. [1 ]
Branagan, David F. [1 ]
机构：
[1] Univ Sydney, Sch Geosci, Sydney, NSW 2006, Australia
来源：
EXPLORATION GEOPHYSICS | 2011年 / 42卷 / 04期
关键词：
borehole correlation; Eveleigh DH 1; lithological logging; mesoscale petrophysics;
D O I：
10.1071/EG11011
中图分类号：
P3 [地球物理学]; P59 [地球化学];
学科分类号：
0708 ; 070902 ;
摘要：
A mesoscale petrophysics and lithological logging study has been carried out on 413 core samples of the 623 m thick Narrabeen Group succession penetrated by the Eveleigh No. 1 diamond drillhole. Mass properties, magnetic susceptibilities, and electrical estimates of mobile salt (EC 1 : 5 tests) were measured. A physical properties analysis posits a 3-fold subdivision of the succession: basal fluvio-deltaic and alluvial, upper lacustrine, and topmost fluvio-deltaic. Each division has cyclic sedimentation but from different provenances. The analysis has proved useful in the correlation of the Narrabeen Group present in a series of drillholes in the eastern part of the exposed Sydney Basin.
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页码：258 / 274
页数：17
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