REPORT OF SEG SUBCOMMITTEE ON INFORMATION ON MAGNETIC RECORDER CHARACTERISTICS

Geophysics ◽  
1957 ◽  
Vol 22 (2) ◽  
pp. 434-441
Author(s):  
S. Kaufman ◽  
A. L. Parrack ◽  
J. D. Skelton
Keyword(s):  
Magnetic Recording ◽  
Seismic Data ◽  
Large Scale ◽  
Basic Design ◽  
Design Features ◽  
Magnetic Recorder

Information on geophysical magnetic recording and play back systems has been obtained from specifications furnished by the several manufacturers. As will be seen in the following summary, the various systems differ in basic design features to such a degree that it is difficult to anticipate the achievement of any large‐scale standardization. This information is presented as being of interest to those concerned with the handling of seismic data, but with no intention of suggestion or recommendation.

Line length balancing to evaluate multi-phase submarine landslide development: an example from the Storegga Slide, Norway

2019 ◽  
Vol 500 (1) ◽  
pp. 531-549 ◽  
Author(s):  
Suzanne Bull ◽  
Joseph A. Cartwright
Keyword(s):  
Seismic Data ◽  
Large Scale ◽  
Line Length ◽  
Proximal Region ◽  
Submarine Landslide ◽  
Landslide Development ◽  
Multi Phase ◽  
Storegga Slide ◽  
2D And 3D ◽  
3D Seismic Data

AbstractThis study shows how simple structural restoration of a discrete submarine landslide lobe can be applied to large-scale, multi-phase examples to identify different phases of slide-lobe development and evaluate their mode of emplacement. We present the most detailed analysis performed to date on a zone of intense contractional deformation, historically referred to as the compression zone, from the giant, multi-phase Storegga Slide, offshore Norway. 2D and 3D seismic data and bathymetry data show that the zone of large-scale (>650 m thick) contractional deformation can be genetically linked updip with a zone of intense depletion across a distance of 135 km. Quantification of depletion and accumulation along a representative dip-section reveals that significant depletion in the proximal region is not accommodated in the relatively mild amount (c. 5%) of downdip shortening. Dip-section restoration indicates a later, separate stage of deformation may have involved removal of a significant volume of material as part of the final stages of the Storegga Slide, as opposed to the minor volumes reported in previous studies.

scholarly journals Aligning Levels of Instruction with Goals and the Needs of Students (ALIGNS): Varied Approaches, Common Principles

2020 ◽  
Author(s):  
Yue-Yi Hwa ◽  
Michelle Kaffenberger ◽  
Jason Silberstein
Keyword(s):  
Developing Countries ◽  
Large Scale ◽  
After School ◽  
Design Features ◽  
Children’S Learning ◽  
Analysis And Synthesis ◽  
Children's Learning

In this Insight Note, we present a set of principles shared by varied approaches that have all succeeded in improving foundational learning in developing countries. These approaches were not explicitly designed with this list of principles in mind; rather, the principles emerged through analysis and synthesis of successful approaches. We call such efforts ALIGNS approaches, which stands for Aligning Levels of Instruction with Goals and the Needs of Students. ALIGNS approaches take many forms, ranging from large-scale policy and curricular reforms to in-school or after-school remedial programmes. In this note, we describe the principles that ALIGNS approaches have in common (Section I); review interdisciplinary evidence on why aligning instruction with children’s learning levels improves learning (Section II); present three cases from across the spectrum of approaches and illustrate how each embodies the ALIGNS principles (Section III); and provide a longer (though not exhaustive) table of programmes that illustrates the range of possible approaches to implementing ALIGNS principles and describes the design features across which they vary (Table 1).

scholarly journals Seismic characterisation of carbonate platforms and reservoirs: an introduction and review

2021 ◽  
pp. SP509-2021-51
Author(s):  
J. Hendry ◽  
P. Burgess ◽  
D. Hunt ◽  
X. Janson ◽  
V. Zampetti
Keyword(s):  
Seismic Data ◽  
Large Scale ◽  
Carbonate Platform ◽  
Energy Transition ◽  
Carbonate Platforms ◽  
Seismic Attribute ◽  
Sequence Stratigraphic ◽  
3D Data ◽  
Diagenetic Facies ◽  
Central Atlantic

AbstractImproved seismic data quality in the last 10–15 years, innovative use of seismic attribute combinations, extraction of geomorphological data, and new quantitative techniques, have significantly enhanced understanding of ancient carbonate platforms and processes. 3D data have become a fundamental toolkit for mapping carbonate depositional and diagenetic facies and associated flow units and barriers, giving a unique perspective how their relationships changed through time in response to tectonic, oceanographic and climatic forcing. Sophisticated predictions of lithology and porosity are being made from seismic data in reservoirs with good borehole log and core calibration for detailed integration with structural, paleoenvironmental and sequence stratigraphic interpretations. Geologists can now characterise entire carbonate platform systems and their large-scale evolution in time and space, including systems with few outcrop analogues such as the Lower Cretaceous Central Atlantic “Pre-Salt” carbonates. The papers introduced in this review illustrate opportunities, workflows, and potential pitfalls of modern carbonate seismic interpretation. They demonstrate advances in knowledge of carbonate systems achieved when geologists and geophysicists collaborate and innovate to maximise the value of seismic data from acquisition, through processing to interpretation. Future trends and developments, including machine learning and the significance of the energy transition, are briefly discussed.

THE EVOLUTION OF THE BERNIER RIDGE, SOUTHERN CARNARVON BASIN, WESTERN AUSTRALIA:IMPLICATIONS FOR PETROLEUM PROSPECTIVITY

2004 ◽  
Vol 44 (1) ◽  
pp. 241 ◽  
Author(s):  
A.M. Lockwood ◽  
C. D’Ercole
Keyword(s):  
Seismic Data ◽  
Large Scale ◽  
Sedimentary Basins ◽  
Early Carboniferous ◽  
Source Rocks ◽  
Petroleum Exploration ◽  
Large Igneous Province ◽  
Satellite Gravity ◽  
Tectonic Events ◽  
Carnarvon Basin

The basement topography of the Gascoyne Platform and adjoining areas in the Southern Carnarvon Basin was investigated using satellite gravity and seismic data, assisted by a depth to crystalline basement map derived from modelling the isostatic residual gravity anomaly. The resulting enhanced view of the basement topography reveals that the Gascoyne Platform extends further westward than previously indicated, and is bounded by a northerly trending ridge of shallow basement, named the Bernier Ridge.The Bernier Ridge is a product of rift-flank uplift prior to the Valanginian breakup of Gondwana, and lies east of a series of small Mesozoic syn-rift sedimentary basins. Extensive magmatic underplating of the continental margin associated with this event, and a large igneous province is inferred west of the ridge from potential field and seismic data. Significant tectonic events that contributed to the present form of the Bernier Ridge include the creation of the basement material during the Proterozoic assembly of Rodinia, large-scale faulting during the ?Cambrian, uplift and associated glaciation during the early Carboniferous, and rifting of Gondwana during the Late Jurassic. The depositional history and maturity of the Gascoyne Platform and Bernier Ridge show that these terrains have been structurally elevated since the mid-Carboniferous.No wells have been drilled on the Bernier Ridge. The main source rocks within the sedimentary basins west of the Bernier Ridge are probably Jurassic, similar to those in the better-known Abrolhos–Houtman and Exmouth Sub-basins, where they are mostly early mature to mature and within the oil window respectively. Within the Bernier Ridge area, prospective plays for petroleum exploration in the Jurassic succession include truncation at the breakup unconformity sealed by post-breakup shale, and tilted fault blocks sealed by intraformational shale. Plays in the post-breakup succession include stratigraphic traps and minor rollover structures.

Significance of large-scale sand injectites as long-term fluid conduits: evidence from seismic data

Geofluids ◽  
2003 ◽  
Vol 3 (4) ◽  
pp. 263-274 ◽  
Author(s):  
A. Hurst ◽  
J. Cartwright ◽  
M. Huuse ◽  
R. Jonk ◽  
A. Schwab ◽  
...  
Keyword(s):  
Seismic Data ◽  
Large Scale

Study on the Testing Auxiliary System of a Large Scale Centrifugal Shaker

2011 ◽  
Vol 368-373 ◽  
pp. 959-962
Author(s):  
Yong Zhi Wang ◽  
Xiao Ming Yuan ◽  
Rui Sun
Keyword(s):  
Data Acquisition ◽  
Large Scale ◽  
Image Acquisition ◽  
Model Tests ◽  
Auxiliary System ◽  
Basic Design ◽  
Data Acquisition Systems ◽  
Design Requirements ◽  
Centrifugal Model ◽  
And Function

By special advantages and progress of dynamic centrifugal model tests, construction and development of large scale centrifugal shakers are driven. As one subsystem of a large scale centrifugal shaker, the testing auxiliary system is used to data acquisition, image acquisition and model making. The perfect design and construction of a testing auxiliary system must give a guarantee for dynamic centrifugal model tests. This paper outlines the components and function of the testing auxiliary system of a large scale centrifugal shaker. The basic design requirements and critical techniques relevant to data acquisition systems, image acquisition systems and containers are analyzed according to the characteristics of dynamic centrifugal model tests on a large scale centrifugal shaker, meanwhile, some specific conception and design suggestions are proposed. The results can offer some references for design of the testing auxiliary system of a large scale centrifugal shaker.

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