http://localhost:8081/jspui/handle/123456789/114 2025-07-04T00:32:49Z 2025-07-04T00:32:49Z Zia, Mohammed http://localhost:8081/jspui/handle/123456789/17721 2025-07-03T15:32:43Z 2013-06-01T00:00:00Z

Title: SAR INTERFEROMETRY FOR EARTHQUAKE INDUCED GROUND DEFORMATIONAL STUDIES Authors: Zia, Mohammed Abstract: Seismic events, mainly caused by sudden relative displacements of tectonic plates, cause deformations of the earth both inside as well as on the surface. The amount of such deformations depends upon the intensity of energy released during such seismicity. Upper crustal ground deformations cannot be measured accurately and completely without tedious manpower labor or sophisticated technology. When dealing with micro level deformations, this task becomes much more complicated. Microwave remote sensing has this capability to measure such small deformations using the approach of phase difference calculation of the backscattered waves coming to the scanner from the ground. Because of having the unique quality to penetrate clouds and having its own source of illumination, this technology can be used all the time. This microwave technique, where we use Synthetic Aperture Radar (SAR) images of the study area to quantify the extent of ground deformations taken place there, is known as Interferometric Synthetic Aperture Radar (InSAR or lfSAR). The central Kutch region of Gujarat, India experienced M7.7 earthquake in 2001, 26th January, causing large-scale ground deformations including huge loss of lives and infrastructure. Rupturing of a hidden reverse fault was the reason for this intense tectonic activity. The post seismic ground deformations, attributed to the relaxation phase of a stressed crustal layer, have been analyzed using ALOS-PALSAR InSAR pair. The InSAR pair belongs to the year 2007 and 2010, covering an area around Bhuj, falling on Kutch Mainland Fault (KMF) and Katrol Bhuj Fault (KBF). Using Adore-DORIS software interferometric images have successfully been generated covering the study area, which has allowed making interesting geological inferences. Three different regions in the study area illustrated countable visible colored fringes, indicating different amount of positive and negative ground deformations (surface motion with respect to the satellite) occurred within the InSAR data acquisition dates. Region around, to the north and east of Bhuj city showed top surface deformations of soft crustal layer of about -35cm, -35cm and 24cm, respectively. Synoptic view of interferometric image of the study area suggests two crustal fault lines running to the north and south of Bhuj city. Institute of Seismological Research (ISR) geophysical and GPS data depicts huge seismic events occurred during the year 2007-2010 and supports observational inference of clustering of interferometric fringes to the east and NE of the study area.

2013-06-01T00:00:00Z Nirankari, Avinash http://localhost:8081/jspui/handle/123456789/17719 2025-07-03T15:32:18Z 2013-06-01T00:00:00Z

Title: GIS FOR THE DEVELOPMENT OF GEOLOGICAL CROSS SECTIONS Authors: Nirankari, Avinash Abstract: To understand the subsurface realm of the Earth, Geologists use Geological cross-sections as tools for deciphering how the subsurface is looking like. These cross-sections are also helpful in making 3-dimensional models of subsurface, to help in understanding the geology beneath the surface, the geological structures present and other various information about the underlying beds. These cross-sections although very helpful to geologists, take a huge time and effort because of the mathematical and statistical work required to produce them. So, it is better to automate this task as much as possible. An attempt is made to produce a tool which is an extension to ArcMap 10.0 or higher which can be used to produce geological cross-sections. ArcMap, being one of the most used mapping software used by geologists, is easily available and is compatible with most of the types of data present. The tool is made as an addin to the ArcMap, which is presented with a semi-automated user interface and uses a custom format of data. The tool is developed in Microsoft Visual Studio 2010 professional and is developed by using C# language. The front-end processing and back-end processing involved during the generation of cross-section by this tool is discussed in detail. A Trend interpolation technique of fourth order polynomial is used to construct surfaces of lithological contacts. The user interface provided does a lot of work itself that is required for it to take inputs from user. The back-end processing involving generation of final cross-section and the intermediary files created in between the process is fully automated. Efforts are made to make the tool flawless and error-free. The tool, being mostly in development stage during the study is not completely error free and only a little amount of real data is used for the testing purpose of the tool. The limitations and drawbacks of tool are also discussed in detail.

2013-06-01T00:00:00Z Jha, Prakash Narayan http://localhost:8081/jspui/handle/123456789/17718 2025-07-03T15:32:10Z 2013-06-01T00:00:00Z

Title: ENGINEERING GEOLOGICAL STUDIES OF KOTLI BHEL PROJECT, STAGE-Il AT KAUDIYALA, UTTARAKHAND Authors: Jha, Prakash Narayan Abstract: The current Dissertation report evaluates various Engineering Geological aspects of Kotlibhel Project Stage-TI at Kaudiyala in Tehri Garhwal district in Uttarakhand. The project envisages construction of 82 m high and 246 m long dam on river Ganga, a Run-off-the-River Scheme project for production of 530 MW of hydroelectricity. The construction of dam required various parameters to be evaluated with minute care so that the stability can be assured. In the present study the dam site and reservoir area has been Geologically studied and Maps (Section and Plan maps) were prepared on 1: 2000 scale showing variation in lithology and structural discontinuity. For sub surface geology sample obtained from drifts and drills are tested in lab. UCS. Brazilian test and other test were carried out to assess the strength of rocks. Further samples taken near dam site and reservoir has been pertrographically analysed. Kinematic and Stabilty analysis has also been carried out along rim of reservoir. Suitable measure has been also recommended for stability

2013-06-01T00:00:00Z Kataria, Prateek http://localhost:8081/jspui/handle/123456789/17717 2025-07-03T15:31:57Z 2013-06-01T00:00:00Z

Title: INTEGRATED PETROPHYSICAL AND GEOLOGICAL APPROACH IN FORMATION EVALUATION OF 4 PETROLIFEROUS FIELD IN CAMBAY BASIN Authors: Kataria, Prateek Abstract: Integrated approach encompassing various sub disciplines of geosciences is the key to improve accuracy in formation evaluation and reserve estimation. Formation evaluation is a basic task in exploration for hydrocarbons, which can be quite challenging and difficult in case of complex lithology. A comprehensive evaluation of complex lithology formations requires precise knowledge of types of different minerals present in such Formations to account for their implications on the reservoir parameters to be derived from log data. This is achieved by various laboratory measurements on the core samples. The integration of results from various studies including sedimentological, petrophysical and geochemical etc. on the core samples provide necessary inputs for realistic formation evaluation. The present work deals with an integrated natural gamma ray spectroscopic (N CS), sedimentological, geochemical, petrophysical and workstation based studies on the core samples and core plugs of Chhatral member-Limbodara field. The study has attempted and targeted to provide all the important and prior parameters necessary for realistic formation evaluation of hydrocarbon bearing zones in Limbodara field. Various such important parameters are dominant clay minerals, range of porosity and permeability values, heavy mineral analysis and type of depositional environment along with total organic carbon (TOO) versus Uranium relationships.

2013-06-01T00:00:00Z