THE HUTTON SANDSTONE - TWO SEPARATE RESERVOIRS IN THE EROMANGA BASIN, SOUTH AUSTRALIA

1983 ◽  
Vol 23 (1) ◽  
pp. 109 ◽  
Author(s):  
D. Gravestock ◽  
M. Griffiths ◽  
A. Hill
Keyword(s):  
Middle Jurassic ◽  
Late Jurassic ◽  
South Australia ◽  
The Other ◽  
The South ◽  
Humid Climate ◽  
Trap Potential ◽  
Basin Margin ◽  
Eromanga Basin

The Hutton Sandstone in the South Australian portion of the Eromanga Basin consists of two units, one Early to Middle Jurassic, the other Middle to Late Jurassic in age. The younger unit may conformably overlie the older in areas of persistent subsidence but either may be thin or absent in areas of complex structure.Siliceous and calcareous authigenic cements at the top of the older unit and within the younger unit indicate surficial weathering in a warm arid to humid climate, supported independently by palaeofloral and faunal evidence. Duricrusts of Middle to Late Jurassic age have been recorded in outcrop from the southwest Eromanga Basin margin and the Surat Basin region.Both units have disconformity trap potential and the younger unit has additional poor to excellent stratigraphic trap potential. Exploration strategies will be enhanced by mapping each unit as a separate reservoir and by recognizing the downflank stratigraphic trap potential of the younger unit.

GEOLOGY OF THE JACKSON OIL FIELD

1984 ◽  
Vol 24 (1) ◽  
pp. 259
Author(s):  
R. V. Halyburton ◽  
A. L. Robertson
Keyword(s):  
Maximum Rate ◽  
Late Jurassic ◽  
Oil Field ◽  
The Other ◽  
Strong Component ◽  
Initial Belief ◽  
Sand Bodies ◽  
Exploration Well ◽  
Eromanga Basin ◽  
Cooper Basin

The Jackson oil field was discovered late in 1981 with the drilling of Jackson 1, which was programmed as an exploration well designed to test the Jurassic-Cretaceous Eromanga Basin sequence and the Permian Cooper Basin sequence, if present. The well tested oil from three formations.The first test to produce oil was carried out across a sand in the Early Cretaceous Murta Member of the Mooga Formation. The zone produced 47° API gravity oil at the rate of 338 barrels (53.7 kilolitres) of oil per day. This was followed by two tests which produced 41° API gravity oil at the rates of 188 and 1165 barrels (29.9 and 185.2 kilolitres) per day respectively from thin sands in the Late Jurassic Westbourne Formation. As a fitting conclusion, the well intersected a 100ft (30 m) oil-saturated section in the Jurassic Hutton Sandstone which on testing flowed 41° API gravity oil at a maximum rate of 2616 barrels (415.9 kilolitres) per day.Four appraisal wells subsequently drilled in the Jackson Field confirmed the initial belief that development of the field was a viable proposition.Compared to the Hutton and Westbourne accumulations, the size of the Murta accumulation is relatively insignificant. The accumulation in the Murta is primarily controlled by structure. On the other hand, the Westbourne accumulation appears to have a strong component of stratigraphic control. In the Hutton accumulation, there is a fair amount of variation in the geometry of the sand bodies at the top of the reservoirs. The accumulation is, however, dominantly controlled by structure.

Play-based exploration in the southern Cooper Basin: a systematic approach to exploration in a mature basin

2018 ◽  
Vol 58 (2) ◽  
pp. 825 ◽  
Author(s):  
D. A. Lockhart ◽  
E. Riel ◽  
M. Sanders ◽  
A. Walsh ◽  
G. T. Cooper ◽  
...  
Keyword(s):  
Portfolio Management ◽  
South Australia ◽  
The South ◽  
High Productivity ◽  
Basin Scale ◽  
Environment Maps ◽  
Key Aspects ◽  
Data Log ◽  
2D And 3D ◽  
Eromanga Basin

Exploration within a mature basin poses many challenges, not least how to best utilise resources and time to maximise success and reduce cost. Play-based exploration (PBE) provides a team-based approach to combine key aspects of the petroleum system into an integrated and wholistic view of basin prospectivity. While the PBE methodology is well established, it is not often applied to its full extent on a basin scale. After a period of declining exploration success in parts of the South Australia Cooper-Eromanga Basin, this study was undertaken by a dedicated regional geoscience team with the aim of rebuilding an understanding of the basin, based on first principles and stripping away exploration paradigms. The study area comprises an acreage position in the South Australian and Queensland Cooper-Eromanga Basins covering 70 000 km2 in which Senex Energy has 14 oil fields, has drilled more than 80 exploration wells and has acquired 2D and 3D seismic material. A plethora of proven and emerging plays exist within the acreage ranging from high productivity light sweet oil (Birkhead and Namur Reservoirs) to tight oil (Murta Formation), conventional gas (Toolachee/Epsilon and Patchawarra Formation), tight gas (Patchawarra Formation) and the emerging deep coal play (Toolachee and Patchawarra Coals). Play-based exploration methodologies incorporating the integration of seismic data, log and palynological data, structural analysis, geochemistry, 3D basin modelling, consistent well failure analysis and gross depositional environment maps have allowed the systematic creation of common risk segment maps at all play levels. This information is now actively utilised for permit management, business development, work program creation and portfolio management. This paper will present an example of the work focussing on the southern section of the South Australian Cooper-Eromanga Basin.

The New Unfair Dismissal Jurisdiction in South Australia

1986 ◽  
Vol 28 (3) ◽  
pp. 367-409 ◽  
Author(s):  
Andrew Stewart
Keyword(s):  
South Australia ◽  
Employment Protection ◽  
The Other ◽  
The South ◽  
Practical Operation ◽  
Unfair Dismissal ◽  
Definition Of ◽  
Ment Policy ◽  
Employment Rights ◽  
Alternative Remedies

The transition in the South Australian jurisdiction over unfair dismissals has generated issues that challenge the future and directions of employment protection in Australia. The new provision, with its key remedial power of compensation in liett of reinstatement or re-employment, has in its practical operation approached far closer to the British model of statutory employment rights than any of its counterparts in the other states, and has further proved sufficiently flexible to generate entitlements to redundancy payments in a novel way. Many of the legal points raised in the decided cases to date reflect important aspects of definition, interaction with otherjurisdictions and employ ment policy generally; these include the definition of dismissal, the effect of alternative remedies on an unfair dismissal claim, the taxation of compensation awards and the significance of this type of legislation as a source of procedural (if not always substantive) fairness.

First rove beetles from the Jurassic Talbragar Fish Bed of Australia (Coleoptera, Staphylinidae)

2013 ◽  
Vol 87 (4) ◽  
pp. 650-656 ◽  
Author(s):  
Chen-Yang Cai ◽  
Evgeny V. Yan ◽  
Robert Beattie ◽  
Bo Wang ◽  
Di-Ying Huang
Keyword(s):  
Middle Jurassic ◽  
Fossil Record ◽  
Late Jurassic ◽  
New South ◽  
New South Wales ◽  
The Other ◽  
Rove Beetles ◽  
Rove Beetle ◽  
South Wales ◽  
Distinct Features

The first two rove beetle fossils discovered from the Late Jurassic Talbragar Fish Bed in New South Wales, Australia are described and illustrated.Juroglypholoma talbragarensen. sp. is the second fossil record for one of the smallest and latest recognized staphylinid subfamily Glypholomatinae. The other staphylinid,Protachinus minorn. gen. n. sp., is an unusual member of extant subfamily Tachyporinae (tribe Tachyporini). It significantly retains several distinct features, including entire epistomal suture, and abdominal tergites III–VI each with a pair of basolateral ridges. The discovery of a new glypholomatine in Australia, together with recently reported one from the Middle Jurassic Daohugou biota of China, suggests the subfamily Glypholomatinae was probably much more widespread in the Jurassic than previously thought.

Middle Jurassic turtles from the Sichuan Basin, China: a review

2011 ◽  
Vol 149 (4) ◽  
pp. 675-695 ◽  
Author(s):  
HAIYAN TONG ◽  
IGOR DANILOV ◽  
YONG YE ◽  
HUI OUYANG ◽  
GUANGZHAO PENG
Keyword(s):  
Middle Jurassic ◽  
Sichuan Basin ◽  
Late Jurassic ◽  
Upper Jurassic ◽  
The Other ◽  
Dominant Group ◽  
Genus Level ◽  
The Family ◽  
The Sichuan Basin ◽  
The One

AbstractThe turtle fauna of the Middle Jurassic Xiashaximiao Formation in the Sichuan Basin and the type series ofChengyuchelys baenoidesYoung & Chow, 1953 are revised. By the absence of a mesoplastron and other shell characters, both the holotype and paratype ofChengyuchelys baenoidesbelong to the family Xinjiangchelyidae and come probably from the Upper Jurassic Shangshaximiao Formation. The Middle Jurassic turtle assemblage of the Sichuan Basin is composed of two entities: the Bashuchelyidae fam. nov. (Bashuchelysgen. nov.,Chuannanchelysgen. nov.) andProtoxinjiangchelysgen. nov. on the one hand, andSichuanchelyson the other hand, with the former as the dominant group. Bashuchelyids and xinjiangchelyids are closely related to one another, whileSichuanchelysis more primitive and has no shared apomorphic features with bashuchelyids. The whole assemblage appears to be endemic to the Sichuan Basin at genus level and distinct from the Late Jurassic turtle fauna of the same basin in its relict nature and absence of the Polycryptodira.

Carcass composition of the South Australian Merino and its crosses with the Booroola and Trangie Fertility Merino

1988 ◽  
Vol 28 (2) ◽  
pp. 167 ◽  
Author(s):  
DO Kleemann ◽  
RW Ponzoni ◽  
JE Stafford ◽  
RJ Grimson
Keyword(s):  
Subcutaneous Fat ◽  
South Australia ◽  
Carcass Composition ◽  
The Other ◽  
Carcass Weight ◽  
Research Centre ◽  
The South ◽  
Lean Tissue ◽  
Australian Merino

South Australian medium-wool (M), non- Peppin medium-wool Booroola (B) and Peppin medium-wool Trangie Fertility (TF) Merino rams were joined to M ewes at Turretfield Research Centre, South Australia, in 2 years. Carcass composition was assessed in the ewe and wether progeny at 2 mean slaughter liveweights, viz. 24 and 38 kg. When adjusted to the same carcass weight, B x M had 13% more carcass chemical fat, 15% more subcutaneous fat, 6% less bone and the same lean tissue as M. The same result was observed for TF x M in relation to M in year 2. However, TF x M had more lean and the same amount of subcutaneous and chemical fat as M in year 1. Within the Booroola strain, there were no differences between offspring from 3 sires with genotype FF and the 1 sire with + + for any of 5 variables analysed. We conclude that crossing the Booroola with the South Australian Merino produces carcasses with the same amount of lean tissue, less bone and more fat when compared at the same carcass weight. The rank of TF x M with the other strains for the major carcass components remains obscure owing to a strain x year interaction.

scholarly journals Stratigraphic Trap Potential in the Middle East – Examples from the Mesozoic

2021 ◽  
Author(s):  
Christopher Gravestock ◽  
Alex Bromhead ◽  
Mike Simmons ◽  
Frans Van Buchem ◽  
Roger Davies
Keyword(s):  
Middle East ◽  
Late Jurassic ◽  
Arabian Plate ◽  
Sequence Stratigraphic ◽  
Petroleum Systems ◽  
Exploration And Production ◽  
Trap Potential ◽  
International Boundaries ◽  
Basin Margin ◽  
Mesozoic Stratigraphy

Abstract The Mesozoic stratigraphy of the Middle East is endowed with multiple world-class, economically significant petroleum systems. Since the first discovery of a major oilfield in an anticline structure in 1908 (Masjed-e-Suleyman, Iran), exploration and production in the Middle East has been largely focussed on relatively low-risk, large structural traps. However, across the Arabian Plate, unexplored structural traps at similar scales are becoming scarce. Therefore, in this mature petroleum province, attention must now focus on identifying the presence of subtle stratigraphic traps, especially within the hydrocarbon-rich Mesozoic stratigraphy. In order to locate and evaluate subtle stratigraphic traps, we have applied sequence stratigraphic principles across the Mesozoic strata of the Arabian Plate. This approach provides a regional, robust age-based framework which reduces lithostratigraphic uncertainty across international boundaries and offers predictive capabilities in the identification and extent of stratigraphic plays. Herein, we focus on three intervals of Mesozoic stratigraphy, namely Triassic, Middle-Late Jurassic and middle Cretaceous strata, in which regional sequence stratigraphic based correlations have identified stratigraphic trap potential. Each of these stratigraphic intervals are associated with the following stratigraphic traps:Triassic: Sub-crop traps associated with a base Jurassic regional unconformity and intra-Triassic unconformities. Onlap geometries associated with differential topography on the Arabian Plate.Middle-Late Jurassic: Pure stratigraphic trap geometries associated with basin margin progradation and pinch-out plays either side of the Rimthan Arch related to late Oxfordian/early Kimmeridgian sea-level fall.Middle Cretaceous: Sub-crop potential beneath the regional mid-Turonian unconformity, basin margin progradation and stratigraphic pinch-out geometries associated with onlap onto basin margins. This regional sequence stratigraphic approach highlights the remaining exploration and production opportunities within these hydrocarbon-rich stratigraphic intervals.

Paleomagnetism of parts of the Late Triassic diabase dike system associated with the trans-New Brunswick aeromagnetic lineament

1981 ◽  
Vol 18 (12) ◽  
pp. 1776-1787 ◽  
Author(s):  
M. K. Seguin ◽  
K. V. Rao ◽  
D. V. Venugopal ◽  
E. Gahe
Keyword(s):  
New Brunswick ◽  
Middle Jurassic ◽  
Late Jurassic ◽  
The Other ◽  
Late Triassic ◽  
General Area ◽  
Present Stage ◽  
Paleomagnetic Study ◽  
C And N ◽  
Radiometric Data

A paleomagnetic study was conducted on dike samples taken from three widely separated localities along the northeasterly trending Caraquet dike system (New Brunswick) in order to define their age relationship. This dike system is recognized on the basis of a well defined aeromagnetic lineament. Stable magnetization directions were isolated after alternating field (15–40 mT) and thermal (300–550 °C) treatments of the samples taken from the three localities: C (353°, +56°), N (353°, +50°), and T (14°, +37°). The virtual pole derived from dike T (82°E, 62°N) agrees well with previously determined Late Triassic – Early Jurassic (200–190 Ma) poles for the Appalachians. On the other hand, the other two virtual pole positions from dikes C (143°E, 78°N) and N (133°E, 74°N) fall in the general area of average paleopoles for the Middle–Late Jurassic (180–170 Ma) age. The possibility that the dike at T differs in age from that of the dikes at localities C and N by at least 20 Ma is suggested. In the absence of reliable radiometric data, it is premature at the present stage to predict a likely occurrence of "younger" magnetization in these dikes related in origin to viscous partial thermoremanence possibly associated with the rifting and opening of the Atlantic in Middle Jurassic. Further investigations on newly found diabase outcrops along the magnetic lineament are in progress.

scholarly journals A new damsel-dragonfly of the small family Selenothemistidae from the Late Jurassic of China (Odonata, Isophlebioptera)

2018 ◽  
Vol 92 (6) ◽  
pp. 1049-1053 ◽  
Author(s):  
Diying Huang ◽  
Chenyang Cai ◽  
André Nel
Keyword(s):  
New Species ◽  
Middle Jurassic ◽  
Late Jurassic ◽  
New Genus ◽  
Upper Jurassic ◽  
Hebei Province ◽  
The Other ◽  
Ne China ◽  
Small Family ◽  
Jiulongshan Formation

AbstractSinothemis difficilis new genus new species, youngest and first accurate Chinese representative of the small family Selenothemistidae, is described and illustrated. It is closely related to the genus Turanothemis, known from the Karatau outcrop in Kazakhstan. The genus Caraphlebia, known from the Middle Jurassic of Antarctica, seems to strongly differ from the other representatives of this family and may belong to another family. The fossil was collected from the Upper Jurassic (157.3 ± 1.5 Ma; near Oxfordian/Kimmeridgian boundary) Guancaishan locality, Jianping County, Western Liaoning, NE China. It belongs to the late assemblage of the Yanliao biota, while the early assemblage is represented by the putatively close damsel-dragonfly Paraliassophlebia from the Jiulongshan Formation of northern Hebei Province.UUID: http://zoobank.org/8b11b148-852e-4079-a9fb-1884bf4b6d94

Personal Discernment and Dialogue. Learning from ‘the Other’

2020 ◽  
Vol 12 (4) ◽  
pp. 27
Author(s):  
Michael Barnes SJ
Keyword(s):  
The Other ◽  
Local Culture ◽  
Society Of Jesus ◽  
Spiritual Exercises ◽  
The South ◽  
Ignatian Spirituality ◽  
Michel De Certeau ◽  
Personal Interactions ◽  
Ignatius Of Loyola

This article considers the theme of discernment in the tradition of Ignatian spirituality emanating from the Spiritual Exercises of St Ignatius of Loyola (1491-1556), the founder of the Society of Jesus (Jesuits). After a brief introduction which addresses the central problematic of bad influences that manifest themselves as good, the article turns to the life and work of two Jesuits, the 16th C English missionary to India, Thomas Stephens and the 20th C French historian and cultural critic, Michel de Certeau. Both kept up a constant dialogue with local culture in which they sought authenticity in their response to ‘events’, whether a hideous massacre which shaped the pastoral commitment and writing of Stephens in the south of the Portuguese enclave of Goa or the 1968 student-led protests in Paris that so much affected the thinking of de Certeau. Very different in terms of personal background and contemporary experience, they both share in a tradition of discernment as a virtuous response to what both would understand as the ‘wisdom of the Spirit’ revealed in their personal interactions with ‘the other’.

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