Warta Geologi, Vol. 47, No. 3, December 2021, pp. 211–216

Lenggong Valley – Revisit our national treasure

Eric Teng Jing Hang*, Mohd Hariri Arifin

Department of Earth Sciences and Environment, Faculty of
Science and Technology,

Universiti Kebangsaan Malaysia, 43600, UKM Bangi, Selangor,
Malaysia

* Corresponding author email address: erictng1238@gmail.com

Abstract:
Lenggong Valley was incepted as UNESCO World Heritage Site in 2012 for its
marvellous cultural value. However, the status will be in peril if the valley
is left neglected and nothing is done. The area is renowned for the discovery
of prehistoric human settlement. Numerous studies and researches have been
conducted at Lenggong Valley to increase the scientific knowledge of the
surrounding areas for further conservation and development. Toba ash deposit
from volcanic eruption in Sumatra, Indonesia and possible meteorite impact were
also discovered within the valley. Geoelectrical resistivity survey have been
conducted to determine the thickness of Toba ash. The results were correlated
with borehole log from the Department of Mineral and Geoscience Malaysia (JMG),
that shows the Toba ash layer is around 10 m in depth and presents low
resistivity range of values (<100 Ωm). Water geochemical analysis at
one of the known water spring shows the surface temperature is 27.6 °C, with a
pH value of 7.47. Truth be told, Lenggong Valley has a diversity of
archaeological sites and geosites that can be established as a geopark and a
group of committee will be materializing it in year 2021 or 2022.

Keyword:
Lenggong, archaeology, Toba, meteorite impact, cool spring, geopark

DOI :
https://doi.org/10.7186/wg473202103

ISSN
0126–5539; e-ISSN 2682-7549