SCIENTIFIC COMMUNICATIONS THE OIL SH./iLE DEPOSITS OF TH./iIL,4ND

Oil shale deposits are known to occur in several areas of Thailand. Perhaps the most important de-posit occurs at Mae Sod, in Tak Province, western Thailand. Other well-known deposits are Li in Lamphun Province, Ko Kha District, Lampang Province, and Krabi in the southern peninsular region. The geological age of all these deposits is late Tertiary, as demonstrated by the presence of the lossils from the oil shale of the Mae Sod series, for example, fish of.the Ostariophysian family Cyprini-dae. In Mae Sod, rich oil shale deposits occupy several small coal-bearing deposits within a larger basin ex-tending westward into the Amherst District of east-ern Burma (Fig. 1). The basin is one of the inter