Browsing by Subject "GEOLOGY AND GEOPHYSICS"
Now showing items 21-40 of 111
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Crustal structure and rift tectonics across the Cauvery–Palar basin, eastern continental margin of India based on seismic and potential field modelling
(Indian Academy of Sciences, 2016)The Cauvery–Palar basin is a major peri-cratonic rift basin located along the Eastern Continental Margin of India (ECMI) that had formed during the rift-drift events associated with the breakup of eastern Gondwanaland ... -
Decadal changes in shoreline patterns in Sundarbans, India
(Jounal of coastal sciences, 2015)Sundarbans is one of the most populated and largest deltas in the world and is located at the mouth of three major rivers- Ganges, Brahmaputra and Meghna that empty into the Bay of Bengal along the east coast of India. The ... -
Decadal shoreline assessment using remote sensing along the central Odisha coast, India
(Springer, 2015)One of the major requirements of planning coastal protection works is to understand the processes of erosion, deposition, sediment transport, flooding and sea level changes which continuously alter the shoreline. Significant ... -
Deep sea drilling in the Arabian Sea: Constraining tectonic-monsoon interactions in South Asia (Report)
(International Ocean Discovery Program, 2015)The Indian (southwest) summer monsoon is one of the most intense climatic phenomena on Earth. Its long-term development has been linked to the growth of high topography in South and Central Asia. The Indian continental ... -
Detection of decadal shoreline changes along Dhamara and Maipura coast, Odisha, India
(IAHR-AIRH, 2014)Coastal erosion is one of the major problems of the coastal zone. The erosion is triggered by various reasons such as high wave energy, reduction of sediments, natural disasters and climate change etc. In the era of ... -
Differential bleaching of corals based on El Nino type and intensity in the Andaman Sea, southeast Bay of Bengal
(Springer, 2016)The Andaman coral reef region experienced mass bleaching events during 1998 and 2010. The purpose of this study is to investigate the role of the El Nino in the coral reef bleaching events of the Andaman region. Both Nino ... -
Directional characteristics of shallow water waves along southwestern Bay of Bengal
(Elsevier, 2016)The aim of the present research is to investigate the directional characteristics of waves along the southwestern Bay of Bengal based on the measured data during 2010 at 14 m water depth. Diurnal, monthly and annual variation ... -
Disseminated sulphides in basalts from the northern central Indian ridge: Implications on late-stage hydrothermal activity
(Springer, 2015)This study examined the mineralogy and mineral chemistry of disseminated sulphides (mainly chalcopyrite-pyrite) in partly altered basalts from the northern Central Indian Ridge, Indian Ocean in order to understand the role ... -
Distribution and nature of sedimentary organic matter in a tropical estuary: An indicator of human intervention on environment
(Elsevier, 2016)Sediment texture controls the spatial distribution of sedimentary organic matter (SOM) in the Vembanad Lake. Influences of marine derived organic matter (OM) on SOM decreased inner-wards in the northern part of the lake. ... -
Distribution, provenance and early diagenesis of major and trace metals in sediment cores from the Mandovi estuary, western India
(Elsevier, 2016)Major elements and trace metals were analyzed in four sediment cores recovered along a transect in the Mandovi estuary for their distribution, provenance and early diagenesis. The sediments were clayey silts in cores from ... -
Effect of heavy metals on the carbon and nitrogen ratio in Avicennia marina from polluted and unpolluted regions
(Elsevier, 2015)The accumulation of heavy metals and its impact on the C/N ratio of Avicennia marina of the Patalganga and Amba estuaries were studied. Vadinar was selected as a relatively uncontaminated location for comparison. Cd was ... -
Enhanced methane flux event and sediment dispersal pattern in the Krishna–Godavari offshore basin: Evidences from rock magnetic techniques
(Elsevier, 2014)Detailed rock magnetic measurements such as susceptibility (X), susceptibility of anhysteric remanent magnetization (X<sub>ARM</sub>), saturation isothermal remanent magnetization (SIRM), soft-isothermal remanent magnetization ... -
Environmental controls on the speciation and distribution of mercury in surface sediments of a tropical estuary, India
(Elsevier, 2015)Distribution and speciation of mercury (Hg) in the sediments from a tropical estuary (Godavari estuary) was influenced by the changing physico-chemical parameters of the overlying water column. The sediments from the ... -
Environmental isotopes to test hypotheses for fluid mud (mud bank) generation mechanisms along the southwest coast of India
(Elsevier, 2015)Occurrence of fluid mud (mud banks) in the southwest coast of India is an enigma for the scientific community. Over the years, several multi-disciplinary studies were conducted and various hypotheses were postulated on the ... -
Environmental isotopes to test hypotheses for fluid mud (mud bank) generation mechanisms along the southwest coast of India
(Elsevier, 2015)Occurrence of fluid mud (mud banks) in the southwest coast of India is an enigma for the scientific community. Over the years, several multi-disciplinary studies were conducted and various hypotheses were postulated on the ... -
Environmental issues of deep-sea mining
(Elsevier, 2015)As terrestrial mineral deposits are either depleting or of low grade, minerals from the deep-sea like the polymetallic nodules, cobalt rich crusts and polymetallicsulfides are considered as alternative sources for metals ... -
Estimation of sea surface temperature (SST) using marine seismic data
(Springer, 2016)Not much attention is given to direct wave arrivals in marine seismic data that are acquired for petroleum exploration and prospecting. These direct arrivals are usually muted out in routine seismic data processing. In the ... -
Evaluating changes in the elemental composition of micrometeorites during entry into the earth`s atmosphere
(The American Astronomical Society, 2015)We evaluate the heating of extraterrestrial particles entering the atmosphere using the comprehensive chemical ablation model (CABMOD). This model predicts the ablation rates of individual elements in a particle with a ... -
Evaluation of surface water and sediment quality in Chicalim Bay, Nerul Creek, and Chapora Bay from Goa coast, India - a statistical approach
(Springer, 2016)To better understand the spatial and temporal variation in surface water and sediment quality, parameters were evaluated from the three sites Chicalim Bay (CB), Nerul Creek (NC), and Chapora Bay (ChB) along the Goa coast, ... -
Evaluation of the influence of monsoon climatology on dispersal and sequestration of continental flux over the southeastern Arabian Sea
(Elsevier, 2016)Associated with the coupled land–ocean heating–cooling, seasonal reversal of monsoon winds regulates hydrography, precipitation, upwelling, fluvial influx and a host of biogeochemical processes. We evaluate the role of the ...