The transition from salt diapir to weld and thrust: examples from the Northern Flinders Ranges in South Australia

2021 ◽  
Author(s):  
Oskar Vidal‐Royo ◽  
Mark G. Rowan ◽  
Oriol Ferrer ◽  
Mark P. Fischer ◽  
J. Carl Fiduk ◽  
...  
Keyword(s):  
South Australia ◽  
Salt Diapir ◽  
Flinders Ranges

A PONDED BASIN FLOOR FAN OUTCROP ANALOGUE: BUNKERS SANDSTONE, NORTHERN FLINDERS RANGES, AUSTRALIA

2003 ◽  
Vol 43 (1) ◽  
pp. 537 ◽  
Author(s):  
M.R.W. Reilly ◽  
S.C. Lang
Keyword(s):  
Gamma Ray ◽  
South Australia ◽  
Salt Diapir ◽  
Log Analysis ◽  
Data Set ◽  
Flinders Ranges ◽  
Active Salt ◽  
Basin Floor ◽  
High Degree ◽  
Gamma Ray Log

The Donkey Bore Syncline in the Northern Flinders Ranges of South Australia contains a generally finegrained deepwater succession of Early Cambrian age (Bunkers Sandstone) that outcrops on three sides of a syncline and flanks an active salt diapir to the east (Wirrealpa Diapir). Within the succession lies a basal sand-prone interval interpreted as a basin floor fan (BFF) ponded within a mini-basin on a topographically complex slope.The BFF comprises over 30 m of section with deposits that are dominantly massive clean sandstone beds (0.1– 3 m thick) that are stacked or interbedded with siltstones and pinch out along strike.Eight stratigraphic sections and accompanying spectral gamma ray logs (using a hand held scintillometer) were measured through the BFF. Using spectral gamma ray log analysis combined with stratigraphic logs, four alternative correlation panels were constructed.Quantitative analysis of sand-prone intervals interpreted in each of the panels provided data on the vertical and horizontal connectivity within the BFF as different correlation methods were explored and the geological model improved. Quantitative analysis of vertical and horizontal connectivity values indicates a high degree of heterogeneity within the BFF, with poor–moderate vertical connectivity, with individual beds rarely correlating >500 m along strike. This heterogeneity is poorly resolved using conventional wireline log suites, but is greatly improved if spectral gamma ray logs are used (especially Thorium).The data set provides a high-resolution analogue for understanding the internal architecture of deepwater hydrocarbon reservoirs.

The Dawson Hill Member of the Grindstone Range Sandstone in the Flinders Ranges, South Australia

2010 ◽  
Vol 134 (1) ◽  
pp. 115-124 ◽  
Author(s):  
J.B. Jago ◽  
C.G. Gatehouse ◽  
C.McA. Powell ◽  
T. Casey ◽  
E.M. Alexander
Keyword(s):  
South Australia ◽  
Flinders Ranges

Studies of the yellow-footed rock-wallaby, Petrogale xanthopus Gray (Marsupialia : Macropodidae). Population studies at Middle Gorge, South Australia

1994 ◽  
Vol 21 (4) ◽  
pp. 473 ◽  
Author(s):  
AC Robinson ◽  
L Lim ◽  
PD Cantry ◽  
RB Jenkins ◽  
CA MacDonald
Keyword(s):  
Sex Ratio ◽  
Population Studies ◽  
South Australia ◽  
Effective Rainfall ◽  
Main Study ◽  
Exchange System ◽  
Two Phase ◽  
Flinders Ranges ◽  
Significant Bias ◽  
Males And Females

A mark-recapture study of Petrogale xanthopus at Middle Gorge in the southern Flinders Ranges revealed that between January 1979 and January 1984 the estimated known-to-be-alive population ranged from 11 to 20. During the main study, individuals living to an estimated age of six years were recorded. Captures of marked animals after completion of the main study revealed both males and females living to at least 10 years old. Births occurred throughout the year but there appeared to be an increase in births following periods of effective rainfall. For the whole study the sex ratio of pouch young did not vary significantly from 1:1. When individuals that gave birth more than once during the study were examined, there was a significant bias towards male young in the later births. It is suggested that this species has a two-phase reproductive strategy with the extra males, produced by older females, sustaining a male-exchange system with nearby colonies.

WOMEN OF THE ADNJAMATANA TRIBE OF THE NORTHERN FLINDERS RANGES, SOUTH AUSTRALIA

Oceania ◽  
1941 ◽  
Vol 12 (2) ◽  
pp. 155-162 ◽  
Author(s):  
C. P. Mountford ◽  
Alison Harvey
Keyword(s):  
South Australia ◽  
Flinders Ranges

Geology of the Beltana Willemite Deposit, Flinders Ranges, South Australia

2003 ◽  
Vol 98 (4) ◽  
pp. 797-818 ◽  
Author(s):  
I. M. Groves ◽  
C. E. Carman ◽  
W. J. Dunlap
Keyword(s):  
South Australia ◽  
Flinders Ranges

Heat refraction and low‐pressure metamorphism in the northern Flinders Ranges, South Australia

1995 ◽  
Vol 42 (3) ◽  
pp. 241-247 ◽  
Author(s):  
S. D. Mildren ◽  
M. Sandiford
Keyword(s):  
South Australia ◽  
Low Pressure ◽  
Flinders Ranges

Subaqueous speleothems from the Flinders Ranges, South Australia, as palaeohydrological archives for the arid zone

2021 ◽  
Author(s):  
Calla Gould-Whaley ◽  
Russell Drysdale ◽  
Jan-Hendrick May ◽  
John Hellstrom ◽  
Hai Cheng ◽  
...  
Keyword(s):  
Arid Zone ◽  
Regional Climate ◽  
South Australia ◽  
Middle Latitude ◽  
Water Levels ◽  
Human Migration ◽  
Dispersal Patterns ◽  
Groundwater Levels ◽  
Flinders Ranges ◽  
Ecosystem Changes

<p>Australia is the driest continent outside of Antarctica yet relatively little is known about its long-term moisture history. Many local palaeoclimate archives suffer preservation problems, particularly in the arid centre of the continent, where weathering and erosion leave behind an incomplete record. In an attempt to redress the paucity of arid-zone palaeoclimate records, we investigate ‘pendulites’, subaqueous speleothems that grow episodically according to fluctuations in local groundwater levels. At Mairs Cave (central Flinders Ranges, South Australia), pendulites have formed around stalactites. During the first sustained episode of drowning, the stalactite is veneered by subaqueous calcite, sealing it and preventing further stalactitic growth after water levels fall. Once sealed, the pendulites only record periods of persistent drowning, assumed to correspond to major pluvial episodes.</p><p>Age data from two pendulite samples collected from close to the ceiling where the highest water levels have reached reveal two main groundwater ‘high-stand’ phases centred on ~67 and ~48 ka, coincident with Southern Hemisphere summer insolation maxima. This suggests that precession-driven southward migration of the ITCZ resulted in regular and persistent incursions of tropical air masses to the central Flinders Ranges. Trace element, stable isotope and growth-rate changes reveal that these orbitally controlled growth intervals are superimposed by regional climate responses to Dansgaard-Oeschger and Heinrich events. The results from Mairs Cave shed new light on the moisture history of central Australia, in particular the competing influences of tropical and middle-latitude circulation systems. This provides a precisely dated regional palaeoclimate template for reconstructing ecosystem changes, understanding human migration/dispersal patterns of the first Australians, and the progressive demise of megafauna. We also highlight the utility of subaqueous speleothems more generally as important archives for investigating arid-zone palaeoclimate.</p>

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