The study of geological constituents of mid-Atlantic oceanic crust with the application of attributes in seismic profiles

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Authors:Rahman, M. Arifour; Rahman, Syed Mustafizur; Islam, M. Rezaul; Keramat, Mumnunul
Author Affiliations:Primary:
University of Rajshahi, Department of Applied Physics and Electronic Engineering, Bangladesh
Volume Title:Journal of the Geological Society of India
Source:Journal of the Geological Society of India, 71(5), p.717-723. Publisher: Geological Society of India, Bangalore, India. ISSN: 0016-7622
Publication Date:2008
Note:In English. 33 refs.; illus., incl. sects., sketch map
Summary:The geologic constituents of the mid Atlantic seismic profiles have been studied with attributes analysis to make a bridge in between geology and seismic. Attributes computation is justified for one test signal. Later the amplitude and frequency attributes have been estimated the mid Atlantic region seismic profiles. The image made in this work is found better than that of the raw seismic data. Amplitude attributes indicated reasonable stratified earth of the crust. The reflecting beds are well presented in the analyzed sections. The boundaries are characterized on the basis of basic wave propagation, as it is observed that the signal strength from the nearest reflecting bed is higher than that of distant bed Estimated frequency attributes of the profiles are indicated the evidences that the oceanic crust are probably gabbros with little mixture of peridotite The constituents are estimated on the basis of frequency distribution of each trace of the whole profiles. Analysis has suggested that gabbro and peridotite are the main geological constituents mixing up with different degrees with depths of the study area. [G.L.B.]
Sections:Physical properties of rocks and minerals
Subjects:Crust; Elastic waves; Geophysical methods; Geophysical profiles; Geophysical surveys; Igneous rocks; Mathematical methods; Oceanic crust; Peridotites; Plutonic rocks; Propagation; Seismic attributes; Seismic methods; Seismic profiles; Seismic waves; Surveys; Ultramafics; Atlantic Ocean; North Atlantic; Northwest Atlantic
Coordinates:N350000 N420000 W0700000 W0760000
Abstract Numbers:08M/2101
Record ID:2009041612
Copyright Information:GeoRef, Copyright 2019 American Geosciences Institute.
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