SEG_Reprints: Recent submissions

Now showing items 61-80 of 445

Audit of geomagnetic field in polar and south atlantic anomaly regions over two centuries

Kakad, Amar; Kakad, Bharati (2022)

There are several reports about the decrease of the magnetic field of our planet. Here, we present a detailed investigation of the geomagnetic field over past 200 years using magnetic field models (IGRF+gufm1) and ground ...
Morphometric characterization of sub‑basins in a hard‑rock aquifer system of Maharashtra, India, using geospatial and geostatistical tools

Shailaja, G.; Umrikar, Bhavana N.; Kadam, Ajaykumar K.; Gupta, Gautam (2021)

The presence of groundwater in the Deccan Traps of Maharashtra is governed by the heterogeneities in the basaltic flow morphology, weathered thickness, and morphological features. The rapid growth of population has led to ...
Geoelectrical survey for evaluation of groundwater potential within the basaltic terrain of Chikotra river basin, Maharashtra (India)

Tahama, Khan; Gupta, Gautam; Patil, J.D. (2021)

Geoelectrical data was acquired using Wenner array over 23 sites with constant electrode separation of 70 m over Chikotra Basin, Dist. Kolhapur, Maharashtra (India). The spatial variation maps of resistivity at depths ...
An application of principal component analysis (PCA) using XRF data to delineate the continetality factor over beach sediments from Vengurla, West Coast, Sindhudurg district, Maharashtra, India

Gawali, Praveen; Sangode, Satish; Herlekar, Milind; Kamble, Prafull (2021)

We present here a novel approach of PCA to delineate the oceanic versus continental influence during pre-mid and post monsoon seasons (PRM, MON, POM) over beach sedimentation at Vengurla along the west coast of India in ...
Holocene environmental magnetic records of Indian monsoon fluctuations

Basavaiah, N.; Seetharamaiah, J.; Appel, Erwin; Juyal, Navin; Prasad, Sushma; Rao, K. Nageswara; Khadkikar, A.S.; Nowaczyki, N.; Braueri, A. (2021)
Magnetotelluric evidence for an Archaean – Proterozoic lithospheric assemblage within the Cambay rift basin, western India, and its role in channeling of plume-derived fluids within the basin

Danda, Nagarjuna; Rao, C.K.; Pavankumar, G.; Kumar, Amit; Manglik, Ajay (2021)

The Cambay rift basin (CRB) in western India is a hydrocarbon producing basin, which has been extensively explored geophysically for hydrocarbon reserves. However, only a limited number of geophysical studies have been ...
Soft sediment deformation features in Dauki Fault region : evidence of paleoearthquakes, Shillong Plateau, NE, India

Lakshmi, B.V.; Gawali, Praveen B. (2022)

The northeastern region (NER) of India has several complex regional geological structures, out of which the Dauki fault (DF) is a prominent one. The E–W trending reverse DF, which is inferred to go through the southern ...
Basement and structure near the southwestern margin of the lower Benue Trough between, and including, the Anambra basin and Afikpo syncline, as derived from aeromagnetic and gravity data

Abdullahi, Mukaila; Kumar, Raj (2021)

We present depth estimates and structural information, using aeromagnetic and gravity data, relating to the basement near the southwestern margin of the lower Benue trough between, and including, the Anambra basin and ...
Short-lived alkaline magmatism related to the Reunion plume in the Deccan Large Igneous Province: inferences from petrology, 40Ar/39Ar geochronology and palaeomagnetism of lamprophyre from the Sarnu-Dandali Alkaline Igneous Complex

Dongre, Ashish; Dhote, P.S.; Zamarkar, P.; Sangode, S.J.; Belyanin, G.; Meshram, D.C.; Patil, S.K.; Karmakar, Aaheri; Jain, Lokant (2021)

Available geochronological information on Deccan indicates prolonged (started at 68.5 Ma) alkaline magmatism related to the Réunion mantle plume based on the 40Ar/39Ar ages from Sarnu-Dandali and Mundwara alkaline complexes. ...
Rock magnetic signatures of the dalma Formation in the Singhbhum mobile belt, Eastern India

Chatterjee, Saurodeep; Basavaiah, N.; Mondal, Supriya; Gain, Debesh (2021)

Petrography and rock magnetic properties of the Dalma volcanics (DV) and associated meta-sediments of Singhbhum mobile belt (SMB) are presented to describe magnetic grain size and Fe-Ti oxide mineralogy of the volcano-sedimentary ...
Investigating probable causes for predicting catastrophic landslides along NH-60 excavated through semi-arid basaltic terrain of Chandanapuri Ghat, Maharashtra, India

Khamkar, Dattatray; Aher, Sainath; Gawali, Praveen; Mhaske, Sumedh (2021)

Road Cut Slope Catastrophe (RCSC) is a recent menace threatening vehicular traffic and commuter safety in hilly tracts. Reduction of risk along Road Cut Hill Slope (RCHS) needs to be tackled on priority. National Highway ...
Dimensionality and directionality analysis of magnetotelluric data by using different techniques: A case study from northern part of Saurashtra region, India

Vijaya Kumar, P.V.; Subba Rao, P.B.V.; Singh, A.K.; Kumar, Amit; Rao, P. Rama (2021)

Magnetotelluric (MT) data has been collected along 32 stations along E–W proBle in northern part and eight LMT (long period MT) stations in north-central part of Saurashtra region. Dimensionality analysis is carried out ...
Rock magnetic evidence of tectonic control on the sedimentation and diagenesis in the Andaman Sea over ~1 million years

Badesab, F.; Mascarenhas-Periera, M.B.L.; Gaikwad, V.; Dewangan, P.; Panda, P.P.; Deenadayalan, K.; Salunke, K.; Augastian, B.; Patil, J.R.; Lakshmi, B.V. (2021)

We evaluate the sedimentary (magnetic, mineralogical, geochemical, grain size) records of a long sediment core (NGHP-01-17 A) to elucidate the tectonic control on the sedimentation and diagenesis in the Andaman Sea (AS) ...
Paleomagnetic results from the Singhbhum Craton, India: remagnetization, demagnetization, and complication

Pivarunas, Anthony F.; Meert, Joseph G.; Katusin, Karastin D.; Pandit, Manoj K.; Miller, Scott R.; Craver, Aubrey; Roderus, Kelli M.; Sinha, Anup (2021)

We report a complicated magnetic fidelity through time in Singhbhum Craton, India, with new, geographically wide-spread and spatially detailed, paleomagnetic results. The Singhbhum Craton in eastern India is cross-cut by ...
Observation of an intriguing equatorial plasma bubble event over Indian sector

Ghodpage, R.N.; Gurav, O. B.; Taori, A.; Sau, S.; Patil, P.T.; Erram, V.C.; Sripathi, S. (2021)

We report an interesting Equatorial Plasma Bubbles (EPBs) event during the night of March 22–23, 2017. To investigate the dynamics of observed EPBs, we utilize multi-instrument data obtained with all-sky imager (ASI) from ...
Monsoon forced evolution of savanna and the spread of agro-pastoralism in peninsular India

Riedel, Nils; Fuller, Dorian Q.; Marwan, Norbert; Poretschkin, Constantin; Basavaiah, Nathani; Menzel, Philip; Ratnam, Jayashree; Prasad, Sushma; Sachse, Dirk; Sankaran, Mahesh; Sarkar, Saswati; Stebich, Martina (2021)

An unresolved issue in the vegetation ecology of the Indian subcontinent is whether its savannas, characterized by relatively open formations of deciduous trees in C4- grass dominated understories, are natural or ...
Multi-proxy records of late holocene flood events from the lower reaches of the Narmada River, Western India

Sukumaran, Prabhin; Sant, Dhananjay A.; Krishnan, K.; Rangarajan, Govindan; Basavaiah, Nathani; Schwenninger, Jean-Luc (2021)

Analyses of a fluvial sedimentary sequence from the lower reaches of the Narmada River establish a record of rhythmic cycles of sediment facies that represent floods during the late Holocene. The south-west Indian monsoon ...
Seismically-induced soft sediment deformation structures in and around Chamoli, Garhwal Himalaya, India

Lakshmi, B.V. (2021)

Soft-sediment deformation structures were identified along Nandakini River valley near Chamoli village of Garhwal Lesser Himalaya. The deformation, in each outcrop, is restricted to a single stratigraphic layer bounded ...
Tentative model of crustal structure of the Central Indian Ocean deformation as inferred from spectral and Werner deconvolution techniques of magnetic data

Bharathi, Divya; Subrahmanyam, M.; Ramesh, D. S.; Rajendran, S. (2020)

Nine total magnetic profiles in the S–N direction of the Central Indian Ocean (CIO) have been interpreted with spectral and Werner deconvolution techniques to obtain approximate depths to shallow (magnetic basement) and ...
Controls of mass transport deposit and magnetic mineral diagenesis on the sediment magnetic record from the Bay of Bengal

Joao, Hilda Maria; Badesab, Firoz; Gaikwad, Virsen; Kocherla, Muralidhar; Deenadayalan, K. (2021)

We conducted rock magnetic, mineralogical, sedimentological and geochemical analyses on a sediment core (MD161/Stn-11) retrieved from a complex marine sedimentary system of Krishna-Godavari (K-G) basin to delineate the ...

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