Mechanism of Gravity-Driven Deformation Using Sandbox Modeling: A Case Study of The Tarakan Sub-Basin, East Kalimantan

Mapping Intimacies ◽

10.29118/ipa21-g-286 ◽

2021 ◽

Author(s):

B. Sapiie

Keyword(s):

Normal Faults ◽

Additional Information ◽

Bathymetric Data ◽

East Kalimantan ◽

Tectonic Reconstruction ◽

Gravity Driven ◽

Sandbox Modeling ◽

Seismic Sections ◽

Integrated Study

Based on the observations of subsurface and bathymetric maps, various structural patterns are observed in the Tarakan Basin, especially in the Tarakan and Tidung Sub-basins. One of the hypotheses put forward in this study that the gravity-driven mechanism is responsible to generate the normal faults system and folds -thrust belt in the offshore Tarakan Basin. We conducted an integrated study using palinspatic reconstructions of several seismic sections and an analogue-sandbox modeling to observe and explain this gravity-driven. The deformation modeling, which is controlled by gravity requires special conditions that can trigger the movement. The three main parameters that cause gravity deformation to occur are lithology, loading, and slope. In the case of the Tarakan Basin, modeling was carried out by referring to the results of 2D-seismic palinspatic reconstructions. Besides, the additional information as a basis for modeling is also based on the current topographic and bathymetric data. The tectonic reconstruction is used as a reference for paleo-stress data. In theory, one of the factors determining the occurrence of this mechanism is the presence of detachment. This detachment manifests the over-pressure fluid anomaly in the rock, such as over-pressure shale and salt layers. To simulate the conditions that may closely be like the behavior in this detachment, bead materials were selected in the sandbox modeling. Twenty-two experiments were conducted to test the bead as the materials in this modeling, and more than thirty experiments were carried out to model this case. From more than ten realizations, the model with the closest results to seismic interpretation and palinspastic analyses were chosen. From the results of experiments that have been conducted, the development of thrust faults related to the development of normal faults. This evidence is in line with the deformation of gravity-driven mechanism.

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Controls on gravity-driven normal fault geometry and growth in stacked deltaic settings: a case study from the Ceduna Sub-basin

The APPEA Journal ◽

10.1071/aj20073 ◽

2021 ◽

Vol 61 (2) ◽

pp. 632

Author(s):

Monica Jimenez ◽

Simon P. Holford ◽

Rosalind C. King ◽

Mark A. Bunch

Keyword(s):

Normal Fault ◽

Passive Margin ◽

Seismic Survey ◽

Normal Faults ◽

Petroleum Systems ◽

Kinematic Analyses ◽

Gravity Driven ◽

Fault Growth ◽

Constant Growth

Kinematics of gravity-driven normal faults exerts a critical control on petroleum systems in deltaic settings but to date has not been extensively examined. The Ceduna Sub-basin (CSB) is a passive margin basin containing the White Pointer (Albian-Cenomanian) and Hammerhead (Campanian-Maastrichtian) delta systems that detach on shale layers of Albian-Cenomanian and Turonian-Coniacian ages, respectively. Here we present evidence for spatially variable fault growth styles based on interpretation of the Ceduna 3D seismic survey and fault kinematic analyses using displacement–distance, displacement–depth and expansion index methods. We identified faults that continuously grew either between the Cenomanian–Santonian or Santonian and the Maastrichtian located throughout the study area and faults that exhibit growth between the Cenomanian–Maastrichtian that are geographically separated into three areas according to their evolution histories: (i) Northern CSB faults exhibit constant growth between the Cenomanian and Maastrichtian. (ii) Central CSB faults show two dip-linkage intervals between (a) Cenomanian and Coniacian–Late Santonian, (b) Coniacian–Late Santonian and Late Santonian–Maastrichtian segments, respectively. (iii) Central and southern CSB faults exhibit dip-linkage intervals between Cenomanian–early Santonian and Late Santonian–Maastrichtian segments. Our study demonstrates a relationship between the location of the Cenomanian–Maastrichtian faults and their evolution history suggesting constant growth evolution at north and dip linkage at the central and south areas.

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Characterizing Concealed Fault Systems by Integrating Field Data Mapping and Laboratory Experiments: A Case Study of the Huawa Area in East China

Frontiers in Earth Science ◽

10.3389/feart.2021.792280 ◽

2021 ◽

Vol 9 ◽

Author(s):

Huiting Hu ◽

Shuang Hu ◽

Rui Zhang ◽

Xiaofei Fu ◽

Chongyu Ren ◽

...

Keyword(s):

Three Dimensional ◽

Reference Value ◽

Integrated Approach ◽

East China ◽

Fluid Distribution ◽

Data Mapping ◽

Series Of Experiments ◽

Seismic Sections ◽

Integrated Study

Concealed faults can be important for understanding the regional structural geology and the subsurface fluid distribution. However, such faults are usually difficult to identify and characterize because of their small size and complex mechanism. To address this issue, we present an integrated approach of three-dimensional seismic data mapping and physical modeling experiments to examine the geometrical and kinematic characteristics of concealed faults and their relationship with the main faults in the Huawa area, east China. Three series of experiments were designed to characterize the differences in the scale of concealed faults and main faults, which also allowed us to examine how the concealed faults grow with the main faults in the area. Through this integrated study, we have demonstrated that: 1) NE-SW-striking concealed faults are below the resolution of the available seismic datasets and not easily recognized in seismic sections and that most of them grew later than the E-W-striking main faults, with some of them having grown at the same time; 2) pre-existing faults, rather than asymmetry of the basin structure, affect the faults that develop during subsequent episodes of extension; 3) E-W-striking pre-existing faults under a NW-SE stress direction of extension are most likely the formation mechanism of concealed faults. This study is of reference value in the interpretation of concealed faults in other regions.

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Successful Execution of high-pressure Fracturing Treatments Case Study and best Practices from East Kalimantan

10.29118/ipa.2406.10.e.200 ◽

2018 ◽

Author(s):

D. Agee

Keyword(s):

High Pressure ◽

Best Practices ◽

East Kalimantan ◽

Successful Execution

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Scoping Review of Thermal Comfort Research in Colombia

Buildings ◽

10.3390/buildings11060232 ◽

2021 ◽

Vol 11 (6) ◽

pp. 232

Author(s):

Juan Manuel Medina ◽

Carolina M. Rodriguez ◽

Maria Camila Coronado ◽

Lina Maria Garcia

Keyword(s):

Thermal Comfort ◽

Scoping Review ◽

Architectural Design ◽

Urban Climate ◽

Academic Community ◽

Additional Information ◽

The Future ◽

Art Research ◽

Occupant Satisfaction

The analysis of thermal comfort in buildings, energy consumption, and occupant satisfaction is crucial to influencing the architectural design methodologies of the future. However, research in these fields in developing countries is sectorised. Most times, the standards to study and assess thermal comfort such as ASHRAE Standard 55, EN 15251, and ISO 7730 are insufficient and not appropriate for the geographical areas of application. This article presents a scoping review of published work in Colombia, as a representative case study, to highlight the state-of-the-art, research trends, gaps, and potential areas for further development. It examines the amount, origin, extent, and content of research and peer-reviewed documentation over the last decades. The findings allow new insights regarding the preferred models and the evaluation tools that have been used to date and that are recommended to use in the future. It also includes additional information regarding the most and least studied regions, cities, and climates in the country. This work could be of interest for the academic community and policymakers in the areas related to indoor and urban climate management and energy efficiency.

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Study of environmental management based on peri-karst community interaction pattern (case study: Long Lanuk Village, Sangkulirang-Mangkalihat karst area, East Kalimantan)

IOP Conference Series Earth and Environmental Science ◽

10.1088/1755-1315/686/1/012018 ◽

2021 ◽

Vol 686 (1) ◽

pp. 012018

Author(s):

A D Siswanto ◽

E Haryono ◽

M Baiquni ◽

W A Fathoni ◽

A A Hakim

Keyword(s):

Environmental Management ◽

Interaction Pattern ◽

Karst Area ◽

Community Interaction ◽

East Kalimantan

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Mapping Complex Land Use Histories and Urban Renewal Using Ground Penetrating Radar: A Case Study from Fort Stanwix

Remote Sensing ◽

10.3390/rs13132478 ◽

2021 ◽

Vol 13 (13) ◽

pp. 2478

Author(s):

Tyler Stumpf ◽

Daniel P. Bigman ◽

Dominic J. Day

Keyword(s):

Urban Expansion ◽

Educational Programming ◽

Additional Information ◽

National Monument ◽

Early Colonial ◽

Historic Structures ◽

Economic Revitalization ◽

Management Plans ◽

Ground Penetrating

Fort Stanwix National Monument, located in Rome, NY, is a historic park with a complex use history dating back to the early Colonial period and through the urban expansion and recent economic revitalization of the City of Rome. The goal of this study was to conduct a GPR investigation over an area approximately 1 acre in size to identify buried historic features (particularly buildings) so park management can preserve these resources and develop appropriate educational programming and management plans. The GPR recorded reflection events consistent with our expectations of historic structures. Differences in size, shape, orientation, and depth suggest that these responses likely date to different time periods in the site’s history. The GPR recorded other reflection anomalies that are difficult to interpret without any additional information, which suggests that pairing high-density geophysical data with limited excavations is critical to elaborate a complex site’s intricate history.

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