Start Submission Become a Reviewer

Reading: Mid-to-late Holocene environmental changes along the southern coast of Sri Lanka and their i...

Download

A- A+
Alt. Display

Research Articles

Mid-to-late Holocene environmental changes along the southern coast of Sri Lanka and their impact on sediment dynamics and human behaviour

Authors:

K. P. M. Weerarathne,

University of Peradeniya,, LK
About K. P. M.
Postgraduate Institute of Science
X close

H. R. D. Peiris ,

University of Peradeniya, LK
About H. R. D.
Department of Basic Sciences, Faculty of Dental Sciences
X close

D. Curnoe,

Australian Museum, 1 William Street, Sydney NSW 2010, AU
About D.
Australian Museum Research Institute
X close

H. M. T. G. A. Pitawala,

University of Peradeniya, LK
About H. M. T. G. A.

Postgraduate Institute of Science

 

Department of Geology, Faculty of Science, University of Peradeniya

X close

A. M. N. M. Adikaram

South Eastern University, Sammanthurai, LK
About A. M. N. M.
Department of Physical Sciences, Faculty of Applied Sciences
X close

Abstract

Understanding the past human adaptations to the environmental changes along the southern coastal area of Sri Lanka caused by sea-level fluctuations during the Holocene period has not yet been clearly understood. The present study aims to interpret the interactions between humans and the environment during the Holocene. Sequential soil samples were obtained from test pits and exposed profiles at five selected prehistoric human occupation sites located in the southern coastal area. The stratigraphy, which was determined based on field investigations and, the grain size distribution and textural parameters of soil samples were employed to establish the depositional environments of the study sites. The stratigraphy and, textural characteristics of sediments at Pallemalala, Mini-Athiliya and Kalametiya revealed that marginal lagoonal and fluvial environmental conditions have prevailed as a result of Mid-Holocene sea-level fluctuations. Conversely, the stratigraphy and sediments at Bundala indicate the influence of storm waves. In addition, Henagahapugala assumed to be occupied by prehistoric populations, seems to be a river channel and reveals comparatively less evidence of human occupation. This evidence indicates that the marginal fluvial/ marine environments were preferred by prehistoric people due to the accessibility and availability of a variety of highly nutritious dietary resources, freshwater sources and source materials for stone implements. Therefore, it is possible to conclude that the marginal environments created by Mid-Holocene sea-level fluctuations resulted in technological and cultural transformations of prehistoric people in Sri Lanka.

How to Cite: Weerarathne, K. P. M., Peiris, H. R. D., Curnoe, D., Pitawala, H. M. T. G. A., & Adikaram, A. M. N. M. (2022). Mid-to-late Holocene environmental changes along the southern coast of Sri Lanka and their impact on sediment dynamics and human behaviour. Ceylon Journal of Science, 51(5), 557–576. DOI: http://doi.org/10.4038/cjs.v51i5.8083
38
Views
Published on 31 Dec 2022.
Peer Reviewed

Downloads

  • PDF (EN)

    comments powered by Disqus