Browsing Scholarly literature by Author "Rao, P.S."
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A significant shift in particulate organic matter characteristics during flooding of River Krishna, eastern peninsular India
PrakashBabu, C.; Ramaswamy, V.; Rao, P.S.; Sarma, V.V.S.S.; PraveenKumar, P. (Current Science Association, IAS, 2020)Extremely heavy rainfall over a small, semi-arid section of the Indian Peninsula in October 2009, together with release of water from dams resulted in very severe flooding in River Krishna. The sources and type of organic ... -
Distribution and sources of organic carbon, nitrogen and their isotopic signatures in sediments from the Ayeyarwady (Irrawaddy) continental shelf, northern Andaman Sea
Ramaswamy, V.; Gaye, B.; Shirodkar, P.V.; Rao, P.S.; Chivas, A.R.; Wheeler, D.; Thwin, S. (Elsevier, 2008)Total organic carbon (TOC), total nitrogen (TN) and their delta sup(13) C and delta sup (15) N values were determined from 110 sediment samples from the Ayeyarwady (Irrawaddy) continental shelf, northern Andaman Sea to ... -
Evidence for change in depositional environment in the Arabian Sea
Rao, P.S.; Rao, Ch.M. (Oxford and IBH, New Delhi, 1992)Sediments of late Pleistocene and Holocene periods, from a 12 m long core collected at a depth of 3627 m from the Arabian Sea, have been studied in order to understand the depositional environment. Sub-samples selected at ... -
Evidence for hydrothermal activity in the Andaman Backarc Basin
Rao, P.S.; KameshRaju, K.A.; Ramprasad, T.; Nath, B.N.; Rao, B.R.; Rao, Ch.M.; Nair, R.R. (Current Science Association, Bangalore, India, 1996)Multibeam bathymetric, magnetic, gravity and seismic surveys revealed a complex morphotectonic fabric of the Andaman Backare Basin with a spreading ridge, several seamounts and faults. The ridge trending SW-NE direction ... -
Ferromanganese oxides from Mid-Indian ridge, seamounts and abyssal plains from the Indian Ocean
Rao, P.S.; Pattan, J.N. (CSIR-NISCAIR, 1989)Mineralogical and chemical investigations show that todorokite is the only Mn mineral in the Mid-Indian Ridge ferromanganese, coatings, delta MnO2 in the seamount crusts, and well crystallised todorokite and minor amounts ... -
Glacial-interglacial changes in the surface water characteristics of the Andaman Sea: Evidence from stable isotopic ratios of planktonic foraminifera
Ahmad, S.M.; Patil, D.J.; Rao, P.S.; Nath, B.N.; Rao, B.R.; Rajagopalan, G. (Indian Academy of Sciences, 2000)Stable carbon and oxygen isotopic analyses of the planktonic foraminifera (Globigerinoides ruber) from a deep sea sediment core (GC-1) in the Andaman Sea show high glacial-to-Holocene d<sup>18</sup>O amplitude of 2.1% which ... -
Grain size analysis of sediments from the northern Andaman Sea: Comparison of laser diffraction and sieve-pipette techniques
Ramaswamy, V.; Rao, P.S. (Coastal Education and Reserch Foundation, 2006)A comparison has been made of sand, silt, and clay percentage of 118 samples from the Ayeyarwady continental shelf, northern Andaman Sea, measured by the sieve-laser diffraction technique and by classical sieve-pipette ... -
Hydrothermal petroleum in the sediments of the Andaman Backarc Basin, Indian Ocean
Venkatesan, M.I.; Ruth, E.; Rao, P.S.; Nath, B.N.; Rao, B.R. (Elsevier, 2003)Recent sediments of he Andaman Backarc Basin, Indian Ocean, between the Andaman Nicobar islands and the Malay Peninsula have been analyzed for biomarker lipids. Three cores were selected: one each from the fault zone in a ... -
International Symposium on Geology and Geophysics of the Indian Ocean (GIO-96), 21-25 October, 1996 - Meeting Report
Rao, Ch.M.; Rao, P.S.; KameshRaju, K.A. (Geological Society of India, 1997) -
Lithology, monsoon and sea-surface current control on provenance, dispersal and deposition of sediments over the Andaman continental shelf
Damodararao, K.; Singh, S.K.; Rai, V.K.; Ramaswamy, V.; Rao, P.S. (Lausanne, Switzerland : Frontiers Media, 2016)Sediments deposited on the Northern and Eastern Andaman Shelf along with a few sediments from the Irrawaddy and the Salween Rivers are studied for their elemental, Sr and Nd concentrations and their isotope composition ... -
Marine mineral resources of the Central Indian Basin: Ferromanganese nodules and crusts
Rao, P.S.; Nair, R.R. (Gulf Pub., Houston, USA, 1996)The morphology, mineralogy and composition of ferromanganese nodules and crusts from the Central Indian Basin and southwestern flank of the Charlsberg Ridge have been characterized from the analyses of data and samples ... -
Morphology of a coral bank, western continental shelf of India: A multibeam study
Rao, P.S.; Kodagali, V.N.; Ramprasad, T.; Nair, R.R. (Geological Society of India, 1993)Morphology of a living coral bank (Gaveshani Bank) is described using multibeam swath bathymetric survey system Hydrosweep. The bank has a height of 42 m, length of 2 km and a maximum width of 1.66 km, with steep flanks ... -
Multibeam mapping of the exclusive economic zone of India
Nair, R.R.; Rao, P.S.; Kodagali, V.N. (New Delhi: Publications and Information Directorate, 1994)The seabed in the Exclusive Economic Zone (EEZ) of India is covered with a variety of minerals of economic interest. High resolution bathymetric maps are needed for effective utilisation and management of these resources. ... -
New insights into the tectonic evolution of the Andaman basin, northeast Indian Ocean
KameshRaju, K.A.; Ramprasad, T.; Rao, P.S.; Rao, B.R.; Varghese, J. (Elsevier, 2004)Multibeam swath bathymetry data acquired over an area of about 30 000 km 2 ,together with magnetic and single channel seismic data, have been analyzed to understand the tectonic evolution of the Andaman basin,northeast ... -
Notes and comments on exploration for polymetallic nodules in the Indian Ocean
Siddiquie, H.N.; Rao, P.S. (Taylor and Francis, 1988)A study of polymetallic nodules in the Indian Ocean taken up as and R&D Project has been extended into an exploratory programme for nodule resources. recognition of India as a Pioneer Investor by the UNCLOS led to the ... -
Ooid turbidites from the Central Western continental margin of India
Rao, P.S. (Springer, 1989)Gravity displaced debris flows/turbidites have been observed in five box cores collected between water depths of 649 and 3,627 m from the Central Western continental margin of India. Studies on grain size, carbonate content, ... -
Opportunities in the EEZ
Rao, P.S. (The International Centre, Dona Paula, Goa, India, 2000) -
Organic carbon-sulfur relationships in sediment cores from the western and eastern continental margins of India
Rao, P.S.; Mascarenhas, A.; Paropkari, A.L.; Rao, Ch.M. (Elsevier, 1994)Two sediment cores from the western continental margin (WMI, WM2) and one core from the eastern continental margin (EM) of India have been analysed to determine the relativ importance of factors such as oxidizing/reducing ... -
Planktonic foraminifera from a quaternary deep sea core from the southern Arabian Sea
Naidu, P.D.; Rao, P.S.; Pattan, J.N. (Geological Society of India, 1989)An investigation on planktonic foraminifera and calcium carbonate content of a box core collected at a depth of 2556 m from the southern part of the Arabian sea indicates faunal changes depicting Quaternary climatic ... -
Pyritized ooids from the Arabian Sea basin
Rao, P.S.; Rao, Ch.M.; Reddy, N.P.C. (Elsevier, 1988)Pyritized ooids in association with turbidites were observed in a box core collected at a depth of 3627 m from the Arabian Sea Basin. Ooids having a shallow water origin were transported to the present depth by turbidity ...