Interpretation of gravity–magnetic anomalies to delineate subsurface configuration beneath east geothermal province along the Mahanadi rift basin: a case study of non-volcanic hot springs
Abstract Gravity and magnetic studies have been carried out over a non-volcanic hot spring zone consisting of Atri and Tarabalo hot springs along the intracontinental Mahanadi rift basin to delineate the subsurface structures and to understand their effect on the geothermal activities over a stable...
Published in: | Geothermal Energy |
---|---|
Main Authors: | , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
SpringerOpen
2022
|
Subjects: | |
Online Access: | https://doi.org/10.1186/s40517-022-00216-4 https://doaj.org/article/44c75b6228944f858e416e1576e8ed3a |
id |
ftdoajarticles:oai:doaj.org/article:44c75b6228944f858e416e1576e8ed3a |
---|---|
record_format |
openpolar |
spelling |
ftdoajarticles:oai:doaj.org/article:44c75b6228944f858e416e1576e8ed3a 2023-05-15T13:33:28+02:00 Interpretation of gravity–magnetic anomalies to delineate subsurface configuration beneath east geothermal province along the Mahanadi rift basin: a case study of non-volcanic hot springs Aurobindo Kumar Basantaray Animesh Mandal 2022-04-01T00:00:00Z https://doi.org/10.1186/s40517-022-00216-4 https://doaj.org/article/44c75b6228944f858e416e1576e8ed3a EN eng SpringerOpen https://doi.org/10.1186/s40517-022-00216-4 https://doaj.org/toc/2195-9706 doi:10.1186/s40517-022-00216-4 2195-9706 https://doaj.org/article/44c75b6228944f858e416e1576e8ed3a Geothermal Energy, Vol 10, Iss 1, Pp 1-27 (2022) Mahanadi basin Hot springs Igneous intrusions Gravity–magnetic 2D and 3D model Renewable energy sources TJ807-830 Geology QE1-996.5 article 2022 ftdoajarticles https://doi.org/10.1186/s40517-022-00216-4 2022-12-31T01:31:53Z Abstract Gravity and magnetic studies have been carried out over a non-volcanic hot spring zone consisting of Atri and Tarabalo hot springs along the intracontinental Mahanadi rift basin to delineate the subsurface structures and to understand their effect on the geothermal activities over a stable continental region. Calculated gravity and magnetic anomaly maps unveil the presence of hot springs along Mahanadi fault. The four-layer subsurface configuration as observed using radially averaged power spectrum analysis and 3D Euler solutions of both gravity and magnetic data indicates occurrence of multi-phases sedimentation and tectonic events. 2D forward, 2D inverse, and 3D inverse residual gravity models have delineated high-density igneous intrusive bodies surrounded by comparatively less dense Khondalites and Charnockites rich altered zones. The sharp high to low density transition zones are identified as the regional Mahanadi fault. The India–Antarctica rifting, existence of two hot springs along the Mahanadi fault of the rifted basin, and similarity in water chemistry strongly indicates an interconnection between these two hot springs. Igneous intrusions and radiogenic element-rich metamorphosed shallow formations combinedly acting as the heat source. Deciphered altered zone, deeper intrusion and deeply connected regional fault along the hot springs confirmed that this regional fault is providing the major pathway for water circulation through radioactive element-rich altered zones while the local and shallow fractures connecting the Mahanadi fault feed the hot springs of the study area. Article in Journal/Newspaper Antarc* Antarctica Directory of Open Access Journals: DOAJ Articles Geothermal Energy 10 1 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Mahanadi basin Hot springs Igneous intrusions Gravity–magnetic 2D and 3D model Renewable energy sources TJ807-830 Geology QE1-996.5 |
spellingShingle |
Mahanadi basin Hot springs Igneous intrusions Gravity–magnetic 2D and 3D model Renewable energy sources TJ807-830 Geology QE1-996.5 Aurobindo Kumar Basantaray Animesh Mandal Interpretation of gravity–magnetic anomalies to delineate subsurface configuration beneath east geothermal province along the Mahanadi rift basin: a case study of non-volcanic hot springs |
topic_facet |
Mahanadi basin Hot springs Igneous intrusions Gravity–magnetic 2D and 3D model Renewable energy sources TJ807-830 Geology QE1-996.5 |
description |
Abstract Gravity and magnetic studies have been carried out over a non-volcanic hot spring zone consisting of Atri and Tarabalo hot springs along the intracontinental Mahanadi rift basin to delineate the subsurface structures and to understand their effect on the geothermal activities over a stable continental region. Calculated gravity and magnetic anomaly maps unveil the presence of hot springs along Mahanadi fault. The four-layer subsurface configuration as observed using radially averaged power spectrum analysis and 3D Euler solutions of both gravity and magnetic data indicates occurrence of multi-phases sedimentation and tectonic events. 2D forward, 2D inverse, and 3D inverse residual gravity models have delineated high-density igneous intrusive bodies surrounded by comparatively less dense Khondalites and Charnockites rich altered zones. The sharp high to low density transition zones are identified as the regional Mahanadi fault. The India–Antarctica rifting, existence of two hot springs along the Mahanadi fault of the rifted basin, and similarity in water chemistry strongly indicates an interconnection between these two hot springs. Igneous intrusions and radiogenic element-rich metamorphosed shallow formations combinedly acting as the heat source. Deciphered altered zone, deeper intrusion and deeply connected regional fault along the hot springs confirmed that this regional fault is providing the major pathway for water circulation through radioactive element-rich altered zones while the local and shallow fractures connecting the Mahanadi fault feed the hot springs of the study area. |
format |
Article in Journal/Newspaper |
author |
Aurobindo Kumar Basantaray Animesh Mandal |
author_facet |
Aurobindo Kumar Basantaray Animesh Mandal |
author_sort |
Aurobindo Kumar Basantaray |
title |
Interpretation of gravity–magnetic anomalies to delineate subsurface configuration beneath east geothermal province along the Mahanadi rift basin: a case study of non-volcanic hot springs |
title_short |
Interpretation of gravity–magnetic anomalies to delineate subsurface configuration beneath east geothermal province along the Mahanadi rift basin: a case study of non-volcanic hot springs |
title_full |
Interpretation of gravity–magnetic anomalies to delineate subsurface configuration beneath east geothermal province along the Mahanadi rift basin: a case study of non-volcanic hot springs |
title_fullStr |
Interpretation of gravity–magnetic anomalies to delineate subsurface configuration beneath east geothermal province along the Mahanadi rift basin: a case study of non-volcanic hot springs |
title_full_unstemmed |
Interpretation of gravity–magnetic anomalies to delineate subsurface configuration beneath east geothermal province along the Mahanadi rift basin: a case study of non-volcanic hot springs |
title_sort |
interpretation of gravity–magnetic anomalies to delineate subsurface configuration beneath east geothermal province along the mahanadi rift basin: a case study of non-volcanic hot springs |
publisher |
SpringerOpen |
publishDate |
2022 |
url |
https://doi.org/10.1186/s40517-022-00216-4 https://doaj.org/article/44c75b6228944f858e416e1576e8ed3a |
genre |
Antarc* Antarctica |
genre_facet |
Antarc* Antarctica |
op_source |
Geothermal Energy, Vol 10, Iss 1, Pp 1-27 (2022) |
op_relation |
https://doi.org/10.1186/s40517-022-00216-4 https://doaj.org/toc/2195-9706 doi:10.1186/s40517-022-00216-4 2195-9706 https://doaj.org/article/44c75b6228944f858e416e1576e8ed3a |
op_doi |
https://doi.org/10.1186/s40517-022-00216-4 |
container_title |
Geothermal Energy |
container_volume |
10 |
container_issue |
1 |
_version_ |
1766042469045108736 |