Periods of recent dune sand mobilisation in Cuddalore, Southeast India

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Periods of recent dune sand mobilisation in Cuddalore, Southeast India. / Frechen, Manfred; Ramachandran, Ramesh; Urban, Brigitte; Kunz, Jan-Alexander.

In: Zeitschrift der Deutschen Gesellschaft für Geowissenschaften, Vol. 161, No. 3, 09.2010, p. 353-368.

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@article{93d2d677793547bf9468d805cb2fe44b,
title = "Periods of recent dune sand mobilisation in Cuddalore, Southeast India",
abstract = "In this study the results from optically stimulated luminescence (OSL) dating of dune sands from the southeast coast of India are presented. The samples were taken from a dune belt running parallel to the coast of Tamil Nadu between the cities of Cuddalore and Porto Novo. Based on previous studies of sea level changes a Holocene age of the sand mobilization was expected. Our results show a very young age of dune formation. The investigated dunes are not older than 200 years. Periods of increased sand movement are recorded in the dunes. These periods correlate with reduced rainfall during the NE-monsoon in Tamil Nadu. A soil-like horizon and an event layer with dewatering structures provide evidence for environmental changes within the last 200 years. This work demonstrates the application of OSL dating on recent sediments and the potential of the dunes in the study area for palaeoenvironmental reconstruction.",
keywords = "Environmental planning, Dune, Environmental change, Holocene, India, OSL dating",
author = "Manfred Frechen and Ramesh Ramachandran and Brigitte Urban and Jan-Alexander Kunz",
year = "2010",
month = sep,
doi = "10.1127/1860-1804/2010/0161-0353",
language = "English",
volume = "161",
pages = "353--368",
journal = "Zeitschrift der Deutschen Gesellschaft fur Geowissenschaften",
issn = "1860-1804",
publisher = "Schweizerbart'sche Verlagsbuchhandlung",
number = "3",

}

RIS

TY - JOUR

T1 - Periods of recent dune sand mobilisation in Cuddalore, Southeast India

AU - Frechen, Manfred

AU - Ramachandran, Ramesh

AU - Urban, Brigitte

AU - Kunz, Jan-Alexander

PY - 2010/9

Y1 - 2010/9

N2 - In this study the results from optically stimulated luminescence (OSL) dating of dune sands from the southeast coast of India are presented. The samples were taken from a dune belt running parallel to the coast of Tamil Nadu between the cities of Cuddalore and Porto Novo. Based on previous studies of sea level changes a Holocene age of the sand mobilization was expected. Our results show a very young age of dune formation. The investigated dunes are not older than 200 years. Periods of increased sand movement are recorded in the dunes. These periods correlate with reduced rainfall during the NE-monsoon in Tamil Nadu. A soil-like horizon and an event layer with dewatering structures provide evidence for environmental changes within the last 200 years. This work demonstrates the application of OSL dating on recent sediments and the potential of the dunes in the study area for palaeoenvironmental reconstruction.

AB - In this study the results from optically stimulated luminescence (OSL) dating of dune sands from the southeast coast of India are presented. The samples were taken from a dune belt running parallel to the coast of Tamil Nadu between the cities of Cuddalore and Porto Novo. Based on previous studies of sea level changes a Holocene age of the sand mobilization was expected. Our results show a very young age of dune formation. The investigated dunes are not older than 200 years. Periods of increased sand movement are recorded in the dunes. These periods correlate with reduced rainfall during the NE-monsoon in Tamil Nadu. A soil-like horizon and an event layer with dewatering structures provide evidence for environmental changes within the last 200 years. This work demonstrates the application of OSL dating on recent sediments and the potential of the dunes in the study area for palaeoenvironmental reconstruction.

KW - Environmental planning

KW - Dune

KW - Environmental change

KW - Holocene

KW - India

KW - OSL dating

UR - http://www.scopus.com/inward/record.url?scp=79959299001&partnerID=8YFLogxK

U2 - 10.1127/1860-1804/2010/0161-0353

DO - 10.1127/1860-1804/2010/0161-0353

M3 - Journal articles

VL - 161

SP - 353

EP - 368

JO - Zeitschrift der Deutschen Gesellschaft fur Geowissenschaften

JF - Zeitschrift der Deutschen Gesellschaft fur Geowissenschaften

SN - 1860-1804

IS - 3

ER -