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Sedimentological and carbonate record from a southern India lake dataset (during the past 3700 years)
CTR :108
Key words carbonate record,southern India lake
Relevant data High (low) values of χlf indicate high (low) rainfall in the region of TK during the past 3,700 years. Particle size variations suggest that the sand % was high (low) during arid (humid) periods, when the TK lake level was low (high). Hence, a negative correlation is documented between sand % and χlf along with other rock magnetic parameters. HIRM (an indicator of magnetically “hard” minerals like haematite and goethite) is suggestive of a relatively arid climate; the high (low) HIRM values in TK sediments indicate arid (humid) conditions. For this reason, sand % is positively correlated with HIRM. By contrast, fine silt and clay contents are low during low-rainfall periods and vice versa. Thus, both fine silt and clay contents are positively correlated with χlf and other rock magnetic parameters, but negatively correlated with HIRM. Magnetic minerals reside principally in the fine silt fraction of TK sediments as evidenced from the positive correlation between fine silt content and magnetic susceptibility. Carbonate content too is indicative of paleorainfall conditions, being high (low) during arid (humid) climatic conditions. Based on the χlf, sand % and carbonate % data, we have inferred lake level variations in TK during the past 3700 years.
Data shows that
a. Description of Intellectual Property Rights When using a dataset, please refer to the following documents in the article: Anish KumarWarrier, R. Shankar, K. Sandeep. Sedimentological and carbonate data evidence for lake level variations during the past 3700 years from a southern Indian lake[J]. Palaeogeography, Palaeoclimatology, Palaeoecology, 2013, doi: 10.1016/j.palaeo.2013.05.026 b. The data labels refer to the following specifications: In order to respect intellectual property rights and protect the rights and interests of data contributors and service providers, data users are requested to mark the data sources in the research results (including project evaluation reports, acceptance reports, academic papers and graduation thesis) based on this data, and the references cited in the [Citation Reference], and submit the publicly available results to the "National Earth System Science Data Sharing Platform" Data sources refer to the following specifications: Chinese Expression: 国家科技基础条件平台-国家地球系统科学数据共享平台-东亚古环境科学数据库; English Expression: East Asian Paleoenvironmental Science Database,National Earth System Science Data Sharing Infrastructure , National Science & Technology Infrastructure of China Acknowledgments refer to the following specifications: Acknowledgments in Chinese: 感谢国家科技基础条件平台-国家地球系统科学数据共享平台-东亚古环境科学数据库提供数据支撑。 Acknowledgments in English: Acknowledgement for the data support from " National Earth System Science Data Sharing Infrastructure, National Science & Technology Infrastructure of China. " Iegal liability: The platform owns intellectual property rights protected by the law, including copyrights for all the data products or services and relevant information published by the platform itself or contributed by some data contributors. No unit or individual may copy, modify, transcribing, spread or sell any part of the above data products, services, information or materials in any way or reason without the written permission of this platform. Where the infringement of copyright and other intellectual property rights of the platform, the platform will be held accountable according to law, hereby solemnly declare! c. Contacts Name: Data processing group Email: eapsd@ieecas.cn Tel: 029-62336213
Data collection format Excel
Data classification Geological record - Lakes and oceans
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ZhaoHL Email: zhaohl@ieecas.cn
Unit: IEECAS Phone: 029-62336213
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