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Characterisation and evaluation of columnar basalt geoheriatge in Thailand: Implication for geotourism management in post-quarring area

100%
Singtuen V., Anumart A.
Quaestiones Geographicae
|
2022
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vol. 41
|
issue 1
37-50
EN
Late Cenozoic basaltic rocks in Nang Rong Columnar Jointed Basalts in southern Khorat Plateau are among the greatest columnar basalts in Thailand as famous geoheritage sites. This work aims to characterize and evaluate the post-quarrying area by field investigation, petrography, geochemistry, and geological engineering. A petrographical study determines these basalts as olivine basalts, presenting porphyritic texture with olivine microphenocryst. Geochemical characteristics indicate these basalts were alkaline basalt generated from alkaline sodic magma series within the continental plates. In addition, columnar jointed basalt presents compressive strength and point load strength index higher than platy basalt with a higher percentage of alteration. Local authorities enhance people in the area to develop and promote their georesources through touristic activities. This geoheritage demonstrates high geology and tourism management values; thus, it could be the prototype of the post-quarrying geosite of Thailand.
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ARCHAEOLOGICAL DISTRIBUTION OF GEOHERITAGE FOR GEOTOURISM DEVELOPMENT IN NAKHON SAWAN PROVINCE, THAILAND

100%
Singtuen V., Phajuy B.
Quaestiones Geographicae
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2020
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vol. 39
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issue 3
EN
Nakhon Sawan Province is located in Upper Central Thailand, where the Chao Phraya River, the vital river of Thailand, begins. According to the distribution of the archaeological sites, the related geological features were divided into two groups by geodiversity scope: (1) hydrological sites - Chao Phraya river, Bueng Boraphet lake, (2) speleological sites - Tham Phet-Tham Thong cave and Khoa Nor mountain. The hydrological sites are the primary water resources of local people since many hundred years, including transportation, agriculture, and fishery, so there are many archaeological sites around there. In addition, the speleological sites are covered with limestones intruded by the granitic rocks, which has caused ore deposition in the form of skarn. The evidence of antiquities in the archaeological site near speleological sites suggests that ancient people discovered and produced their ores, notably iron in the studied area. Based on inventory, characterization, classification, and assessment methods, this preliminary geoarchaeology study can support Nakhon Sawan to promote geotourism for sustainability by their stunning geological features, fantastic nature as well as beautiful culture, both past and present.
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