The Triassic sedimentary rocks of Thailand represent the beginning of a Mesozoic regression which saw widespread marine conditions gradually giving way to continental conditions which spread from the east to the west. The most marine of the Mesozoic systems is therefore the Triassic, which contains in places rich faunas that prove an almost complete succession to be present.
This was a period of considerable tectonic and igneous activity and Palaeotethys, which separated the terranes of Sibumasu and Indochina, probably closed at this time. The Triassic granite chains which run the length of the country are described by Cobbing (2011) while the belts of volcanic rocks, many of them Triassic, which run through Northern, NE and SE Thailand, are described by Barr & Charusiri (2011).
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The Geology of Thailand
This is the first volume in the English language to cover the entire range of the geology of Thailand since the joint Thai—US account by Brown et al. exactly 60 years ago. Over this period there has been a phenomenal growth in interest in this core area of SE Asia. This has been led by geologists in Thailand, but with important and highly significant input from geologists based elsewhere in Asia and in Europe, Australasia and North America. Some of that research was prompted by commercial considerations, since Thailand has important energy and mineral resources, while other research has sought to understand better the stratigraphic and structural history, including the plate-tectonic story which Thailand's rocks reveal. This new volume seeks to bring together all of this knowledge into a single accessible book; it is the work of an international team drawn from Thailand, Japan, Australia, USA, Canada, Germany and the UK.