Quantitative estimate of fracture density variations in the Nordegg with azimuthal AVO and curvature: A case study

2010 ◽  
Vol 29 (9) ◽  
pp. 1122-1137 ◽  
Author(s):  
Lee Hunt ◽  
Scott Reynolds ◽  
Tyson Brown ◽  
Scott Hadley ◽  
Jon Downton ◽  
...  
Keyword(s):  
Quantitative Estimate ◽  
Fracture Density

Fracture density variations within a reservoir-scale normal fault zone: a case study from shallow-water carbonates of southern Italy

2021 ◽  
pp. 104432
Author(s):  
Giovanni Camanni ◽  
Francesco Vinci ◽  
Stefano Tavani ◽  
Valeria Ferrandino ◽  
Stefano Mazzoli ◽  
...  
Keyword(s):  
Shallow Water ◽  
Fault Zone ◽  
Southern Italy ◽  
Normal Fault ◽  
Fracture Density

Preliminary Discussion on the Modification of Ecological Footprint Model

2012 ◽  
Vol 610-613 ◽  
pp. 3212-3216
Author(s):  
Juan Juan Dai ◽  
Yao Jian Wu ◽  
Si Ting Chen ◽  
Shang Jiang
Keyword(s):  
Time Series ◽  
Sustainable Development ◽  
Theoretical Basis ◽  
Quantitative Estimate ◽  
Ecological Footprint ◽  
Sustainability Assessment ◽  
Footprint Model ◽  
Regional Sustainable Development ◽  
Development Assessment

Based on the survey on deficiencies of ecological footprint model applied on regional sustainable development assessment, modification of the ecological footprint model was preliminarily discussed on three aspects: concept extension, combination with other index, and introduction of quantitative estimate indices for time series calculation. This discussion provided a scientific guidance of applying ecological footprint model on regional sustainability assessment, and a theoretical basis for further case study.

Fracture density determination using a novel hybrid computational scheme: a case study on an Iranian Marun oil field reservoir

2015 ◽  
Vol 12 (2) ◽  
pp. 188-198 ◽  
Author(s):  
Morteza Nouri-Taleghani ◽  
Mehrzad Mahmoudifar ◽  
Amin Shokrollahi ◽  
Afshin Tatar ◽  
Mina Karimi-Khaledi
Keyword(s):  
Oil Field ◽  
Computational Scheme ◽  
Fracture Density ◽  
Density Determination

scholarly journals Fracture variability in basalts and its effect on river erosion: a case study in the Paraná Volcanic Province

2021 ◽  
Vol 25 (1) ◽  
pp. 13-19
Author(s):  
Adalto Gonçalves Lima ◽  
Marcos Aurelio Pelegrina ◽  
Murilo Pontarolo
Keyword(s):  
Flow Direction ◽  
Structural Characteristics ◽  
Fracture Density ◽  
Volcanic Province ◽  
Fracture Systems ◽  
Aerial Imaging ◽  
River Erosion ◽  
River Reach ◽  
Average Angle

The variation in the structural characteristics (cooling joints and tectonic fractures) of basaltic flows implies potential variability in the intensity of erosion by plucking. The erosive behavior of the rivers that sculpt these areas depends on their interaction with the diverse fracture systems. In view of this, we analyzed the effect of fracture variability in basalts on erosion in a bedrock river reach located in the Continental Volcanic Province of the Paraná Basin, southern Brazil. The 120-m-long reach is influenced somewhat by a possible fault that crosses it near one end. The fracture density and fracture direction were evaluated through field photogrammetry in seven sample areas distributed along the reach. The fracture direction and main erosion axes were also surveyed by remote piloted aircraft (RPA) aerial imaging. Tectonic fractures were identified in the field; they do not always appear in the survey of the sample areas but are evident in the RPA survey. The main erosion axes coincide with the principal fracture directions (tectonic fractures), which are disposed obliquely to the channel flow direction, making an average angle of 50°. The more abundant and multidirectional cooling joints act to control the plucking process and not to determine the erosion direction. The fracture density decreases with increasing distance from the fault crossing zone (from 9.62 to 3.73 m/m²), although the lower value is influenced by the presence of an amygdaloidal basalt zone. The higher fracture density favors more intense plucking.

scholarly journals The Relation of Fault Fracture Density with the Residual Gravity; case study in Muria

2021 ◽  
Vol 1 (2) ◽  
pp. 41-47
Author(s):  
Fajar Rizki Widiatmoko ◽  
Ratih Hardini Kusuma Putri ◽  
Huzaely Latief Sunan
Keyword(s):  
Analytical Method ◽  
Ground Truth ◽  
Fracture Density ◽  
Ground Truth Data ◽  
Reservoir Area ◽  
Residual Gravity ◽  
Magmatic Body ◽  
Preliminary Study

The usages of the FFD analytical method massively are utilized during the last decade, especially in the geothermal preliminary study that can show the prospect reservoir area. This article discusses the correlation of the FFD value with the residual gravity value that is assumed as an indication of the underneath magmatic body. The correlation of FFD value with residual gravity value is applied in Muria mountain. Muria is classified as the volcano body that contains the magmatic body, also exist Genuk volcano and Patiayam hill around Muria. The correlation shows that FFD value and residual gravity value have a relation, but especially for the uninfluenced by structural activity has a low value of FFD. The correlation of FFD and residual gravity is double-checked with the ground truth data, it showing the proof relation. This way of methodology may use for finding the underneath magmatic body, especially applied to the surface that has not been influenced by structural activity.

The Genesis and Internal Dynamics of El Salvador's People's Revolutionary Army, 1970–1976

2014 ◽  
Vol 38 (01) ◽  
pp. 102-129
Author(s):  
ALBERTO MARTÍN ÁLVAREZ ◽  
EUDALD CORTINA ORERO
Keyword(s):  
Latin America ◽  
El Salvador ◽  
Early Years ◽  
Left Wing ◽  
Internal Dynamics ◽  
Internal Coherence ◽  
The 1960S

AbstractUsing interviews with former militants and previously unpublished documents, this article traces the genesis and internal dynamics of the Ejército Revolucionario del Pueblo (People's Revolutionary Army, ERP) in El Salvador during the early years of its existence (1970–6). This period was marked by the inability of the ERP to maintain internal coherence or any consensus on revolutionary strategy, which led to a series of splits and internal fights over control of the organisation. The evidence marshalled in this case study sheds new light on the origins of the armed Salvadorean Left and thus contributes to a wider understanding of the processes of formation and internal dynamics of armed left-wing groups that emerged from the 1960s onwards in Latin America.

Culture and the plasticity of perception

2020 ◽  
Vol 43 ◽  
Author(s):  
Michael Lifshitz ◽  
T. M. Luhrmann
Keyword(s):  
Cultural Context ◽  
Sensory Experience ◽  
Cultural Learning ◽  
The World

Abstract Culture shapes our basic sensory experience of the world. This is particularly striking in the study of religion and psychosis, where we and others have shown that cultural context determines both the structure and content of hallucination-like events. The cultural shaping of hallucinations may provide a rich case-study for linking cultural learning with emerging prediction-based models of perception.

Dual systems for all: Higher-order, role-based relational reasoning as a uniquely derived feature of human cognition

2019 ◽  
Vol 42 ◽  
Author(s):  
Daniel J. Povinelli ◽  
Gabrielle C. Glorioso ◽  
Shannon L. Kuznar ◽  
Mateja Pavlic
Keyword(s):  
Temporal Reasoning ◽  
Higher Order ◽  
Important Case ◽  
Human Cognition ◽  
Relational Reasoning ◽  
Dual Systems ◽  
First Order ◽  
Reasoning System ◽  
Role Based

Abstract Hoerl and McCormack demonstrate that although animals possess a sophisticated temporal updating system, there is no evidence that they also possess a temporal reasoning system. This important case study is directly related to the broader claim that although animals are manifestly capable of first-order (perceptually-based) relational reasoning, they lack the capacity for higher-order, role-based relational reasoning. We argue this distinction applies to all domains of cognition.

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