Dr C RAMACHANDRAN

@periyaruniversity.ac.in

Research Scholar, Department of Geology
Periyar University

Dr C RAMACHANDRAN


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https://researchid.co/rockram

EDUCATION

M.Sc., M.Phil., Ph.D

RESEARCH, TEACHING, or OTHER INTERESTS

Geology, Geochemistry and Petrology, Earth and Planetary Sciences, Earth-Surface Processes
4

Scopus Publications

37

Scholar Citations

3

Scholar h-index

1

Scholar i10-index

Scopus Publications

  • Spectral signatures for iron ore deposits in Tirthamalai area, Dharmapuri District, Tamil Nadu, India
    Cendrayan Kasilingam, Arisiyappan Thirunavukkarasu, Chandran Ramachandran
    Journal of Applied and Natural Science, 2023
    The demand for iron ore has increased recently and employing geochemical and hyperspectral remote sensing techniques for discovering new ore and mineral resources have primarily been concentrated on the economic phases. The present study aimed to characterize the hyperspectral spectral signatures of iron ores of field samples to map the deposits that occurred in the Tirthamalai hill region, which lies in the parts of Harur Taluk, Dharmapuri district of Tamil Nadu state, India The measurement and study of spectral signatures of the different samples of the deposits showed strong spectral absorptions near 500 nm, 900 nm and 2400 nm wavelength regions and were confirmed with the Fourier Transform Infrared (FTIR) spectroscopy method. The spectral absorption characteristics of the samples were evaluated by the study of the physical, optical, and chemical characteristics of the samples. The study of hyperspectral and FTIR spectral signatures with petrographic and major chemical elements revealed the best absorption characteristics of the iron ore deposits of the study region and can be used elsewhere in the world. This report presents preliminary findings on the use of hyperspectral imaging to characterize iron ore. The mineralogical products produced from hyperspectral images may improve in situ grade control on an iron ore mine face. It will be extremely useful for businesses in measuring large numbers of commodities quickly and objectively.
  • Episodic habitation and abandonment of Neolithic civilization sites in the Vaigai River Basin, Southern India
    Mu. Ramkumar, K. Balasubramani, K. Kumaraswamy, M. Santosh, Priyadarsi D. Roy, et al.
    Geosystems and Geoenvironment, 2022
  • Pore resistivity variation by Resistivity imaging technique in sedimentary part of main Gadilam river basin, Cuddalore District, Tamil Nadu, India
    R. Ravi, S. Aravindan, C. Ramachandran, Sanjay Kumar Balabantaray, B. Selvaraj, et al.
    Journal of Applied and Natural Science, 2021
    Electrical resistivity is the only property of physics which give information of subsurface moisture content in the formation, Hence geophysical electrical resistivity survey was carried out to investigate the nature of shallow subsurface formations and geological contact in the main Gadilam river basin of Cuddalore District in Tamil Nadu. Twenty-seven vertical electrical soundings (VES) were conducted by Schlumberger configuration in the basin. Data is interpreted by curve matching techniques using IPI2 WIN software, layer parameters like apparent resistivity (?a) and thickness (h) interpretation were exported to Geographic Information System (GIS). Interpretation distinguishes three major geoelectric layers like topsoil, sandy clay layer, clayey sand layer along the contact zone in the basin. Interpreted VES sounding curves are mostly four-layer cases of QH, H, HA and KH type. Investigation demarcates lithology of subsurface and hydrogeological set up by employing maximum possible electrode sounding to infer saline water and freshwater occurrence based on resistivity signals. Zone of groundwater potential map was prepared with the combination of resistivity (?= ?1+ ?2+ ?3+ ?4) and corresponding thickness (T= T1+T2+T3+T4). High resistivity value of >200 ? m and low resistivity value of <10 ? m show the occurrence of alkaline and saline water within the formation aquifers as a result of possible rock water interaction and saline water dissolution. Four-layer resistivity cases from the matched curve (namely KH, AH, QA, and KA type) show the resistivity distribution/variation. It separates the freshwater depth wish from 1 to 140 ? m in fluvial sediments. Flood basin, sandstone and clay layer with low resistivity value of 3.16 - 7.5 ? m indicates contact with saline and freshwater aquifer. The Iso – resistivity map delineates saline water and freshwater zones with in the fourth layer cases in the same locations to indicate the irrational way of abstracting groundwater, resulting in saltwater ingress.
  • Discovery of buried historical structures in the Kaveri–Kollidam interfluve, southern India
    Mu. Ramkumar, K. Kumaraswamy, K. Balasubramani, S. Abdul Rahaman, R. Jegankumar, et al.
    Archaeological Prospection, 2019
    The Srirangam interfluve, formed between the Kaveri and Kollidam Rivers in southern India, has been a religious and cultural human settlement for over 2000 years of recorded history. It contains thousands of ancient, yet in use, man‐made structures. Owing to its geographic location, and episodic catastrophic floods from the Kaveri and Kollidam Rivers, the region has been inundated frequently leading to the burial of many smaller structures. Thematic maps of geomorphology, vegetation index, land use, digital elevation model, slope, etc., have been generated through multi‐temporal remote sensing satellite images. A compilation of historic (stone inscriptions, temple documents) and literature data followed by detailed survey of the region using vertical electrical sounding (VES) and ground‐penetrating radar (GPR) through 200 and 400 MHz shielded antennas has led to the discovery of several buried manmade structures at various depths ranging from 0.54 to 3.55 m below ground level (b.g.l.) that were known only in the literature, hearsay and folklore. The VES, GPR and field surveys delineated four major soil/sediment horizons below the ground surface. Sedimentological characteristics of a massive river sand bed found overlying a weathered zone suggest deposition during a major catastrophic flood. The occurrence of flood deposits burying historic structures especially adjoining the regional tectonic structure indicate episodically active climatic and tectonic processes that played a significant role in the burial of ancient‐historic land surface and manmade structures that were under desolation after invasion and desecration by war‐lords of yore. This study demonstrates the potential of combining traditional knowledge and modern technologies to gain insights to locate historic/archaeological sites and discover buried structures.

RECENT SCHOLAR PUBLICATIONS

  • Geochemical signatures and petrogenesis of intraplate dolerite dykes in the Salem block, Southern Granulite Terrane, India: Evidence of arc and MORB affinities
    C Ramachandran, A Thirunavukkarasu, R Ravi, TS Kavin, S Shrivarsan
    Acta Geochimica, 1-22 , 2025
    2025
  • Inferences on the Geological History Through Soil Minerology, Palakkad Gap Region, South India
    J Peedamparammal, P Pangunny, R Chandran, JB Sajikumar, ...
    Journal of Geographical Sciences and Education 3 (3), 214-234 , 2025
    2025
  • Assessment of groundwater fluctuation and rainfall in Salem region, Tamil Nadu, India
    C Sakthivel, A Thirunavukkarasu, C Ramachandran
    Journal of Geology, Geography and Geoecology 34 (2), 403-417 , 2025
    2025
  • Geochemistry, petrology and tectonic settings of dolerite dykes of Ranipet district, northern part of Southern Granulite Terrain, Tamil Nadu, India
    S Rameshkumar, A Thirunavukkarasu, C Ramachandran, C Sakthivel, ...
    Journal of Geology, Geography and Geoecology 33 (1), 164-177 , 2024
    2024
    Citations: 1
  • Geochemical internal variations of Salem Dolerite dykes from Southern Granulite Terrane: Implications of petrogenetic processes in the dyke conduits
    C Ramachandran, A Thirunavukkarasu, A Manobalaji, R Ravi
    Journal of Geology, Geography and Geoecology 32 (1), 185-200 , 2023
    2023
    Citations: 3
  • Spectral signatures for iron ore deposits in Tirthamalai area, Dharmapuri District, Tamil Nadu, India.
    C Kasilingam, A Thirunavukkarasu, C Ramachandran
    Journal of Applied & Natural Science 15 (1) , 2023
    2023
    Citations: 1
  • Wall rock deformation, chilled margin, textural analysis, and displacement structures of Salem dolerites emplaced within the Southern Granulite Terrane, Tamilnadu, India
    C Ramachandran, A Thirunavukkarasu, R Ravi
    Arabian Journal of Geosciences 16 (1), 52 , 2023
    2023
    Citations: 3
  • Episodic habitation and abandonment of Neolithic civilization sites in the Vaigai River Basin, Southern India
    M Ramkumar, K Balasubramani, K Kumaraswamy, M Santosh, PD Roy, ...
    Geosystems and Geoenvironment 1 (1), 100007 , 2022
    2022
    Citations: 9
  • Pore resistivity variation by Resistivity imaging technique in sedimentary part of main Gadilam river basin, Cuddalore District, Tamil Nadu, India
    R Ravi, S Aravindan, C Ramachandran, SK Balabantaray, B Selvaraj, ...
    Journal of Applied and Natural Science 13 (1), 268 , 2021
    2021
    Citations: 7
  • Discovery of buried historical structures in the Kaveri–Kollidam interfluve, southern India
    M Ramkumar, K Kumaraswamy, K Balasubramani, S Abdul Rahaman, ...
    Archaeological Prospection 26 (1), 73-88 , 2019
    2019
    Citations: 13
  • Ferride Group of Elements and Their Significance in The Origin of Banded Magnetite-Quartzite (BMQ) of Tirthamalai Area, Dharmapuri District, Tamilnadu, India
    A Thirunavukkarasu, R Suresh, M Sankar, C Ramachandran, ...
    Journal of Applied Geochemistry 18 (2), 149 , 2016
    2016

MOST CITED SCHOLAR PUBLICATIONS

  • Discovery of buried historical structures in the Kaveri–Kollidam interfluve, southern India
    M Ramkumar, K Kumaraswamy, K Balasubramani, S Abdul Rahaman, ...
    Archaeological Prospection 26 (1), 73-88 , 2019
    2019
    Citations: 13
  • Episodic habitation and abandonment of Neolithic civilization sites in the Vaigai River Basin, Southern India
    M Ramkumar, K Balasubramani, K Kumaraswamy, M Santosh, PD Roy, ...
    Geosystems and Geoenvironment 1 (1), 100007 , 2022
    2022
    Citations: 9
  • Pore resistivity variation by Resistivity imaging technique in sedimentary part of main Gadilam river basin, Cuddalore District, Tamil Nadu, India
    R Ravi, S Aravindan, C Ramachandran, SK Balabantaray, B Selvaraj, ...
    Journal of Applied and Natural Science 13 (1), 268 , 2021
    2021
    Citations: 7
  • Geochemical internal variations of Salem Dolerite dykes from Southern Granulite Terrane: Implications of petrogenetic processes in the dyke conduits
    C Ramachandran, A Thirunavukkarasu, A Manobalaji, R Ravi
    Journal of Geology, Geography and Geoecology 32 (1), 185-200 , 2023
    2023
    Citations: 3
  • Wall rock deformation, chilled margin, textural analysis, and displacement structures of Salem dolerites emplaced within the Southern Granulite Terrane, Tamilnadu, India
    C Ramachandran, A Thirunavukkarasu, R Ravi
    Arabian Journal of Geosciences 16 (1), 52 , 2023
    2023
    Citations: 3
  • Geochemistry, petrology and tectonic settings of dolerite dykes of Ranipet district, northern part of Southern Granulite Terrain, Tamil Nadu, India
    S Rameshkumar, A Thirunavukkarasu, C Ramachandran, C Sakthivel, ...
    Journal of Geology, Geography and Geoecology 33 (1), 164-177 , 2024
    2024
    Citations: 1
  • Spectral signatures for iron ore deposits in Tirthamalai area, Dharmapuri District, Tamil Nadu, India.
    C Kasilingam, A Thirunavukkarasu, C Ramachandran
    Journal of Applied & Natural Science 15 (1) , 2023
    2023
    Citations: 1
  • Geochemical signatures and petrogenesis of intraplate dolerite dykes in the Salem block, Southern Granulite Terrane, India: Evidence of arc and MORB affinities
    C Ramachandran, A Thirunavukkarasu, R Ravi, TS Kavin, S Shrivarsan
    Acta Geochimica, 1-22 , 2025
    2025
  • Inferences on the Geological History Through Soil Minerology, Palakkad Gap Region, South India
    J Peedamparammal, P Pangunny, R Chandran, JB Sajikumar, ...
    Journal of Geographical Sciences and Education 3 (3), 214-234 , 2025
    2025
  • Assessment of groundwater fluctuation and rainfall in Salem region, Tamil Nadu, India
    C Sakthivel, A Thirunavukkarasu, C Ramachandran
    Journal of Geology, Geography and Geoecology 34 (2), 403-417 , 2025
    2025
  • Ferride Group of Elements and Their Significance in The Origin of Banded Magnetite-Quartzite (BMQ) of Tirthamalai Area, Dharmapuri District, Tamilnadu, India
    A Thirunavukkarasu, R Suresh, M Sankar, C Ramachandran, ...
    Journal of Applied Geochemistry 18 (2), 149 , 2016
    2016