Journal of Earth system science | |
Anthropogenic and impact spherules: Morphological similarity and chemical distinction – A case study from India and its implications | |
Dipak Panda32  Jayanta K Pati14  Ambalika Niyogi14  Shiv K Patil41  Suresh C Patel23  | |
[1] Dr. K.S. Krishnan Geomagnetic Research Laboratory, Leelapur Road, Hanumanganj, Allahabad 221 505, India.$$;EPMA Laboratory (PLANEX), Physical Research Laboratory, Thaltej Campus, Ahmedabad 380 009, India.$$;Department of Earth Sciences, Indian Institute of Technology, Powai, Mumbai 400 076, India.$$;Department of Earth and Planetary Sciences, University of Allahabad, Allahabad 211 002, India.$$ | |
关键词: Spherule; road dust; meteoritic impact; microtektites; fly ash.; | |
DOI : | |
学科分类:天文学(综合) | |
来源: Indian Academy of Sciences | |
【 摘 要 】
This paper provides first report of silica-rich anthropogenic spherules of varying colour, shape, size, surface texture and chemical composition found in road-deposited sediments (RDS) of Allahabad city, Uttar Pradesh, India. Morphological details and lithophile elemental composition of the silica-rich spherules are compared to microtektites and impact spherules from India to demonstrate their striking morphological similarities and chemical variability. This study suggests the need to use spherule data carefully while assigning an impact origin to spherule-finds or spherule-bearing lithological horizons.
【 授权许可】
Unknown
【 预 览 】
Files | Size | Format | View |
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RO201912040492274ZK.pdf | 607KB | download |