SEG_Reprints: Recent submissions

Now showing items 241-260 of 445

Causative source of Mw 6.9 Sikkim–Nepal border earthquake of September 2011: GPS baseline observations and strain analysis

Pradhan, Rashmi; Prajapati, Sanjay K.; Chopra, Sumer; Kumar, Ashok; Bansal, B.K.; Reddy, C.D. (2013)

The recent earthquake of Mw 6.9 which occurred on September 18, 2011 in Sikkim–Nepal border region (epicenter 27.72°N, 88.06°E, depth 20.7 km, ∼68 km NW of the Capital city Gangtok) is the strongest earthquake in the ...
On the UT and seasonal variations of the standard and SuperMAG auroral electrojet indices

Singh, Anand K.; Rawat, Rahul; Pathan, B.M. (2013)

The standard auroral electrojet (AE) indices are based on magnetic disturbance data from 10 to 12 northern auroral observatories. Recently, Newell and Gjerloev (2011a) computed equivalent SuperMAG electrojet (SME) indices ...
Effect of prompt penetration on the low latitude ASY indices

Singh, Anand K.; Sinha, Ashwini K.; Pathan, B.M.; Rajaram, R.; Rawat, Rahul (2013)

Onset of a geomagnetic substorm often intensifies the westward auroral electrojet, as well as produces asymmetric magnetic field at low-/mid-latitudes. Auroral electrojet and low latitude asymmetric indices are known to ...
Topographic Constraints on Deviatoric Stress Field in the Indo-Eurasian Collision Region: Seismo-Tectonic Implications

Shrivastava, Mahesh N.; Reddy, C.D.; Prajapati, Sanjay K. (2013)

The deviatoric stress field are computed from the inversion of Gravitational Potential Energy (GPE) for the Indo-Eurasian plate collision region including the Himalaya and the Tibet Plateau. The resulting stress pattern ...
Delineation of shallow resistivity structure around Malvan, Konkan region, Maharashtra by neural network inversion using vertical electrical sounding measurements

Maiti, Saumen; Gupta, Gautam; Erram, Vinit C.; Tiwari, Ram Krishna (2013)

Modeling resistivity profiles, especially from hard rock areas, is of specific relevance for groundwater exploration. A method based on Bayesian neural network (BNN) theory using a Hybrid Monte Carlo (HMC) simulation scheme ...
Geoelectrical studies for delineating seawater intrusion in parts of Konkan coast, Western Maharashtra.

Gupta, Gautam; Erram, Vinit C.; Maiti, Saumen; Kachate, Nandkishor R.; Patil, Sanjay N. (2010)

A total of 28 Veritical electrical sounding (VES) were carried out in the coastal area of Konkan in Kudal-Malvan region, western Maharashtra to delineate the spatial extent of seawater intrusion into the mainland. Resistivity ...
Mineral compositions and petrogenetic evolution of the ultramafic-alkaline - carbonatitic complex of sung valley, northeastern india

Melluso, Leone; Srivastava, Rajesh K.; Guarino, Vincenza; Zanetti, Alberto; Sinha, Anup K. (2010)

The Sung Valley alkaline complex is a relatively small intrusion of Lower Cretaceous age emplaced slightly before or during the India–Antarctica break-up. It consists of ultramafic rocks (dunites, wehrlites, clinopyroxenites, ...
Geoelectric investigation of hot springs in Maharashtra

Gupta, Gautam; Erram, Vinit C.; Maiti, S. (2010)

Thermal springs are the surface manifestations of the subsurface geothermal energy which has attained significant attention in recent years as an alternated energy source. The state of Maharashtra in India is characterized ...
Variation of primary magnetization of basaltic target rocks due to asteroid impact: example from lonar crater, India

Arif, Md.; Deenadayalan, K.; Basavaiah, N. (2011)

Lonar lake, India [1, 2] is one of the few known terrestrial asteroid impact craters that is fully excavated in Deccan Trap basalts (~65 Ma) [3], and thus comparable to those craters formed on rocky planetary bodies in our ...
Gabriel graph of geomagnetic Sq variations

Sridharan, M.; Ramasamy, Ayyathurai M.S. (2010)

This paper describes the pattern of geomagnetic solar quiet day, Sq, variations recorded at the Indian geomagnetic observatories. The extent to which the high and low latitude ionosphere is interlinked electromagnetically ...
Indication for clockwise rotation in the Siang window south of the eastern Himalayan syntaxis and new geochronological constraints for the area

Liebke, Ursina; Antolin, B.; Appel, E.; Basavaiah, N.; Mikes, T.; Dunkl, I.; Wemmer, K. (2011)

Palaeomagnetic, rock magnetic and geochronological investigations were carried out on the Abor volcanics of Arunachal Pradesh, NE India. A Late Palaeozoic formation age for part of the Abor volcanics cannot be excluded ...
Interrelation of magnetic susceptibility, soil color and elemental mobility in the Pliocene–Pleistocene Siwalik paleosol sequences of the NW Himalaya, India

Kumaravel, V.; Sangode, S.J.; Siddaiah, N. Siva; Kumar, Rohtash (2010)

Apart from imparting color characteristics, the precipitation and dissolution of Fe-oxides (and hydroxides) during pedogenesis is coeval with transformation and translocation of major and trace elements. Based on rock ...
Environmental magnetic and petroleum hydrocarbons records in sediment cores from the north east coast of Tamilnadu, Bay of Bengal, India

Venkatachalapathy, R.; Veerasingam, S.; Basavaiah, N.; Ramkumar, T.; Deenadayalan, K. (2011)

In this study, mineral magnetic properties and petroleum hydrocarbons were statistically analysed in four sediment cores (C1, A1, T1 and K1) from the north east coast of Tamilnadu, India to examine the feasibility of PHC ...
Monsoon variability and chemical weathering during the late Pleistocene in the Goriganga basin, higher central Himalaya, India

Beukema, Steven P.; Krishnamurthy, R.V.; Juyal, N.; Basavaiah, N.; Singhvi, A.K. (2011)

Stable isotope analysis along with radiocarbon and luminescence dating of late Pleistocene lacustrine deposits at Burfu in the higher central Himalaya are used to interpret hydrologic changes in the lake basin. From 15.5 ...
Major element geochemical variations in a Miocene-Pliocene Siwalik paleosol sequence: Implications to soil forming processes in the Himalayan foreland basin

Kumaravel, V.; Sangode, S.J.; Siddaiah, N. Siva; Kumar, Rohtash (2009)

Elemental mobility based on major element geochemistry from 58 horizons related to six paleosols profiles in a typical Miocene — Pliocene Siwalik fluvial sequence in the NW Himalaya has been reported here. The paleosols ...
Effect of burial and compaction on soil magnetic properties: Results from soil-paleosol sequences in the Himalayan Foreland, India

Sangode, S.J.; Kumaravel, V.; Bloemendal, J.; Kumar, Rohtash (2008)

The study based on 395 stratigraphically ordered pedogenic and associated non pedogenic horizons in the Himalayan foreland basin indicated a significant depth control for the routine rock magnetic parameters (χlf, χfd, ...
Record of neotectonic activity in the pindari glacier valley: study based on glacio geomorphic and AMS fabric evidences

Bali, Rameshwar; Agarwal, K.K.; Patil, S.K.; Ali, S. Nawaz; Rastogi, Saurabh Kumar; Krishna, Kalyan (2011)

Systematic geomorphological studies aided by anisotropy of magnetic susceptibility (AMS) along the Pindari glacier valley suggest continued neotectonic activity in the area. The distribution and orientation of a number of ...
Morphostratigraphy and palaeoclimate appraisal of the Leh valley, Ladakh Himalayas, India

Sant, Dhananjay A.; Wadhawan, Sudesh K.; Ganjoo, Rajinder K.; Basavaiah, N.; Sukumaran, Prabhin; Bhattacharya, Sourabh (2011)

In the present paper we study morphology, occurrence and mutual interrelationship of erosional (amphitheaters) and depositional landforms belonging to glacial (moraines), fluvio-glacial (glacial out wash), mass wasting ...
Inversion of Schlumberger resistivity sounding data from the critically dynamic Koyna region using the Hybrid Monte Carlo-based neural network approach

Maiti, S.; Gupta, Gautam; Erram, Vinit C.; Tiwari, R.K. (2011)

Koyna region is well-known for its triggered seismic activities since the hazardous earthquake of M=6.3 occurred around the Koyna reservoir on 10 December 1967. Understanding the shallow distribution of resistivity pattern ...
Automatic discriminations among geophysical signals via the Bayesian neural networks approach

Maiti, Saumen; Tiwari, Ram Krishna (2010)

The precise classification of changes in rock boundaries/facies from well-log records is a complex problem in geophysical data processing. Observed well-log data are a complex superposition of nonstationary/nonlinear signals ...

Now showing items 241-260 of 445

Search DSpace

Advanced Search

Browse

All of DSpace
This Collection
- By Issue Date
- Authors
- Titles
- Subjects

Recently added

SEG_Reprints: Recent submissions

Search DSpace

Browse

All of DSpace

This Collection

My Account