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Kumar, Ravindra
- The Earliest Marine Transgression in Western India:New Insights from Calcareous Nannofossils from Lathi Formation, Jaisalmer Basin
Abstract Views :345 |
PDF Views:196
Authors
Affiliations
1 Birbal Sahni Institute of Palaeosciences, 53, University Road, Lucknow 226 007, IN
2 Geological Survey of India, Jaipur 302 004, IN
1 Birbal Sahni Institute of Palaeosciences, 53, University Road, Lucknow 226 007, IN
2 Geological Survey of India, Jaipur 302 004, IN
Source
Current Science, Vol 111, No 10 (2016), Pagination: 1631-1639Abstract
We report the first record of an age-diagnostic, but depauperate assemblage of calcareous nannofossils, an exclusively marine phytoplankton group, from the Lathi Formation of Jaisalmer Basin, western India. The nannofossil evidence, precisely constrains the age of the Lathi Formation, traditionally considered to be a Bajocian (Middle Jurassic) continental deposit. Furthermore, the presence of several reworked nannofossil taxa of Pliensbachian, Toarcian and Aalenian ages suggests that the earliest epeiric sea transgressed western India during the Early Jurassic. Thick and luxuriant gymnosperm forests proliferated in the Jaisalmer Basin during this time. The presence of calcareous nannofossils in both the lower and upper members of the Lathi Formation (Odania and Thaiat members) points to intermittent coastal marine depositional environment.Keywords
Calcareous Nannofossils, Early-Middle Jurassic, Jaisalmer Basin, Lathi Formation.Full Text
References
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- National Repository of Fish Cell Lines: Accelerating Fish Cell Line Research in Fisheries and Aquaculture
Abstract Views :250 |
PDF Views:79
Authors
Murali S. Kumar
1,
Basdeo Kushwaha
1,
Akhilesh Kumar Mishra
1,
Ravindra Kumar
1,
Kuldeep Kumar Lal
1
Affiliations
1 ICAR-National Bureau of Fish Genetic Resources, Canal Ring Road, PODilkusha, Lucknow 226 002, IN
1 ICAR-National Bureau of Fish Genetic Resources, Canal Ring Road, PODilkusha, Lucknow 226 002, IN
Source
Current Science, Vol 119, No 4 (2020), Pagination: 589-590Abstract
No Abstract.Full Text
- Quantification of reduction in air pollution due to bypassing traffic in Delhi, India
Abstract Views :195 |
PDF Views:100
Authors
Affiliations
1 Transportation Planning and Environment Division, CSIR-Central Road Research Institute, New Delhi 110 025, IN
1 Transportation Planning and Environment Division, CSIR-Central Road Research Institute, New Delhi 110 025, IN
Source
Current Science, Vol 120, No 10 (2021), Pagination: 1600-1610Abstract
The worldwide known relationship between transport and air pollution is demanding innovative solutions for satisfying the mobility needs with minimum pollution. While reducing the mobility demand is a longterm target, the most commonly adopted approach is to decongest the ‘hot spots’ having an alarming level of pollution. The main objective of providing bypasses and expressways is to divert the through traffic coming into the city. Delhi is one of the most congested and polluted cities in India. Among the various sources, vehicular pollution is a significant source of air pollution. Different policies and strategies have been developed to decongest and depollute Delhi. The Eastern Peripheral Expressway (EPE) is one such option implemented to decongest the national capital of India by diverting the traffic not destined for Delhi. It becomes essential to evaluate the performance of such significant infrastructural investments for better decision making in the future. Accordingly, the present study quantifies the impact of constructed EPE in terms of diverted traffic and the reduction of vehicular pollution from the capital of India. For this, various primary surveys like classified traffic volume, origin–destination and fuel station surveys were conducted in the study area. Vehicle kilometre travelled for all vehicle types was calculated using the primary data, and this parameter is considered for quantifying vehicular emissions. The results showed that reduction of vehicular emission due to diverted traffic was 0.7% of PM (PM2.5), 7.1% of NOx and 2.5% CO in the total vehicular emission load of Delhi.Keywords
Air pollution, bypassing traffic, expressway, travel demand estimation, vehicular emission load.Full Text
References
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- Sharma, N., Kumar, P. V., Kumar, P., Singh, A., Dhyani, R., Sekhar, C. R. and Ravinder, K., Measurement of idling fuel consumption and estimation of emission at selected signalized intersections
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- Excerpt of Symposium on Sickle Cell Disease
Abstract Views :51 |
PDF Views:37
Authors
Affiliations
1 CSIR-Institute of Genomics and Integrative Biology, New Delhi 110 007, IN
2 Ministry of Tribal Affairs, Government of India, New Delhi 110 001, IN
3 ICMR-National Institute of Research in Tribal Health, Jabalpur 482 003, IN
1 CSIR-Institute of Genomics and Integrative Biology, New Delhi 110 007, IN
2 Ministry of Tribal Affairs, Government of India, New Delhi 110 001, IN
3 ICMR-National Institute of Research in Tribal Health, Jabalpur 482 003, IN
Source
Current Science, Vol 125, No 7 (2023), Pagination: 715-717Abstract
No Abstract.Keywords
No Keywords.Full Text
References
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