Cenozoic

Cretaceous

Jurassic

Triassic

Permian

Carboniferous

Devonian

Early Paleozoic

Select Region(s) to search
Hold Ctrl (Windows/Linux) or Command (Mac) to select multiple

Doi Kong Mu Formation

Doi Kong Mu Fm

Period:

Carboniferous

Age Interval:

Late Carboniferous (provisional assignment) (8)

Province:
NW Thailand – Inthanon Zone

Type Locality and Naming

NW Thailand, north of Mae Ping Fault. The type section is along the main approach path to Wat Doi Kong Mu on a small hill (Doi Kong Mu) immediately west of downtown Mae Hong Son.

Synonym: หมวดหินดอยกองมู

[Figure: Screenshot taken from ESRI topographic map of QGIS, showing the type locality with a star.]

Lithology and Thickness

Well- bedded conglomerate, red and purplish red sandstone and shale. Conglomerate is poorly- to moderately-sorted, with clasts of sub-rounded to angular pebbles of quartz, chert, quartzite and brown sandstone. Thickness: 300 m in the type secion.

Lithology Pattern:

Aus conglomerate

Relationships and Distribution

Lower contact

Upper contact

"Bunopas (1981) noted, however, that the Doi Kong Mu Formation is overlain by Middle Permian limestone to the NW of Mae Sariang in southern Mae Hong Son Province" (Ueno & Charoentitirat, 2011)

Regional extent

Northern Region: Mae Hong Son province. Correlation: Fang Red-beds Fm, Mae Tha Gr

GeoJSON

{"type":"Feature","geometry":{"type":"MultiPolygon","coordinates":[[[[97.96,19.69],[97.97,17.95],[98.27,17.43],[98.13,17.55],[97.93,17.74],[97.74,17.9],[97.64,18.03],[97.46,18.33],[97.32,18.7],[97.46,18.93],[97.49,19.28],[97.66,19.59],[97.85,19.77],[97.96,19.69]]]]}}

Fossils

Age

Late Carboniferous (provisional assignment). " Based on its relationship with the Middle Permian limestone, Bunopas (1981) concluded that the formation is probably Carboniferous, but further stratigraphic work is necessary to confirm this."Relative ages for Mae Tha Fm, Fang Red-beds Fm and Doi Kong Mu Fm are arbitrary, because contacts are not known; and these may be coeval facies variations to some extent.

Age Span:

Beginning stage:

Bashkirian

Fraction up in beginning stage:

0.0

Beginning date (Ma):

323.23

Ending stage:

Moscovian

Fraction up in the ending stage:

0.0

Ending date (Ma):

314.60

Depositional setting

Marginal marine (Paralic deposits with a strong continental influence)

Depositional pattern:

Additional Information

Compiler:

Wen Du - modified from Katsumi Ueno & Thasinee Charoentitrat, 2011, Chapter 5 Carboniferous and Permian in: Ridd, M.F., Barber, A.J., and Grow, M.J., editors, The Geology of Thailand, Geol. Soc. of London.; and Lexicon of Stratigraphic Names of Thailand of 2013.