Zobrazeno 1 - 10
of 11
pro vyhledávání: '"Venigalla Purnachandra Rao"'
Autor:
Venigalla Purnachandra Rao, Shaik Sai Babu, Mekala Ram Mohan, S. S. Sawant, Ravipati Venkata Ramana, N. Satyasree
Publikováno v:
Journal of Earth System Science. 130
The clay fraction of the sediments in 15 rivers along the east coast of India showed The clay fraction of sediments in the lower reaches of 15 rivers along the east coast of India showed high kaolinite followed by illite and smectite for the rivers d
Autor:
Aradhi Keshav Krishna, Ravipati Venkata Ramana, S. S. Sawant, Shaik Sai Babu, Venigalla Purnachandra Rao, Mekala Ram Mohan, N. Satyasree
Publikováno v:
Journal of Earth System Science. 129
We present a new dataset on the average composition of the clay fraction of sediments in 13 rivers draining the entire peninsular India, referred to here as Peninsular India Rivers Average Clay (PIRAC). PIRAC showed relatively low Si and high Fe, Mn
Publikováno v:
Environmental Science and Pollution Research. 24:27409-27429
Major elements and trace metals in suspended sediments along transect stations of the Mandovi and Zuari estuaries showed three types of distribution: (a) high concentrations of most metals (Al, Fe, Mn, Cr, Pb, Cu, Ni, Zn, Co, Sc, Mo, and U) in the up
Publikováno v:
Environmental Earth Sciences. 76
The role of diagenetic processes in influencing the behaviour of metals (Fe, Mn, Cu, Ni, Zn), rare earth elements (REEs) and environmental magnetic parameters in two sediment cores from a polluted creek environment (the Thane Creek, Mumbai) was inves
Publikováno v:
Journal of Oceanography. 66:133-146
Geochemical and rock-magnetic investigations were carried out on a sediment core collected from the SE Arabian Sea at 1420 m depth in oxygenated waters below the present-day oxygen minimum zone. The top 250 cm of the core sediments represent the last
Publikováno v:
Estuaries and Coasts. 33:30-44
Systematic seasonal variations of suspended particulate matter (SPM) along a 44-km transect of the Mandovi estuary reveal that the concentrations of SPM are low at river-end stations, increase generally seaward, and are highest at sea-end stations of
Publikováno v:
Palaeogeography, Palaeoclimatology, Palaeoecology. 270:46-52
Rock magnetic concentration, grain size and mineralogy parameters together with organic carbon, calcium carbonate, redox-sensitive elements, δ 18 O of Globigerinoides ruber and radiocarbon dating were carried out on a 445 cm long sediment core colle
Autor:
Pratima M. Kessarkar, Datta Suryanarayana Raju, Syed Wajih Ahmad Naqvi, Venigalla Purnachandra Rao, Syed Masood Ahmad, Ernst Hegner
Publikováno v:
Palaeogeography, Palaeoclimatology, Palaeoecology. 260:347-358
Phosphorites from the Murray Ridge, NW Arabian Sea comprise nodules, bioclasts, and bone fragments. The nodules are made up of a homogeneous, light-colored phosphate nucleus consisting of Rivulariacean filamentous cyanobacteria and a thin dark-grey c
Publikováno v:
Journal of Oceanography. 63:1009-1020
Indian monsoon precipitation fluctuated significantly during the Holocene and a reliable reconstruction of the timing of the events and their implications is of great benefit to our understanding of the effect and response of low latitude climate sys
Publikováno v:
Marine Geology. 127:105-113
The present paper reports the first mineralogical description of green grains (verdine and glaucony) from sediments of the eastern continental margin of India. Only 24 of the 82 sediment samples studied, at depths between 18 and 247 m, contain green