Doi Long Fm
Period:
Triassic
Age Interval:
Upper Triassic (Carnian) (11)
Province:
Sukhothai Fold Belt
Type Locality and Naming
Doi Huai Long, east of Tha Si village, Lampang province of Northern Region. Parent unit: uppermost formation in Lampang Gr.
Synonym: หมวดหินดอยลอง
Lithology and Thickness
Grey to light grey, finely crystalline limestone, predominantly massive, but gradually becomes bedded near the base and the top. Thickness: 230 m
Lithology Pattern:
Limestone
Relationships and Distribution
Lower contact
Hong Hoi Fm (conformable)
Upper contact
Pha Daeng Fm (conformable)
Regional extent
Lampang-Phrae basin, west part of the Northern Region of Sukhothai Fold Belt.
GeoJSON
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Fossils
Age
Early Carnian in Fig. 6.2 of Chonglakmani, C.P., 2011.
Age Span:
Beginning stage:
Carnian
Fraction up in beginning stage:
0
Beginning date (Ma):
237.00
Ending stage:
Carnian
Fraction up in the ending stage:
0.3
Ending date (Ma):
234.44
Depositional setting
Shallow marine; ramp carbonate platform
Depositional pattern:
Additional Information
Compiler:
Wen Du - modified from- Chonglakmani, C.P., 2011, Chapter 6 Triassic in Ridd, M.F., Barber, A.J., and Grow, M.J., editors, The Geology of Thailand, Geol. Soc. of London.；Lexicon of Stratigraphic Names of Thailand of 2013.