Khanom Gneissic Complex Gr
Period:
Neoproterozoic
Age Interval:
Inferred Precambrian (3)
Province:
Sibumasu: Lower Peninsula
Type Locality and Naming
Khanom district, Nakhon Si Thammarat province by Kosuwan and Charusiri (1997).
Synonym: หินไนสิกคอมเพล็กขนอม
[Figure: Sketch map of Thailand showing sample localities. The areas in grey are outcrops of crystalline basement rocks (Figure is from Hansen & Wemmer (2011), which was modified after Salyapongse 2002).
Lithology and Thickness
Gneiss, schist, calcsilicate, quartzite and marble. Subdivisions: 5 informal units: Haad Nai Phlao gneiss, Khao Yoi schist, Laem Thong Yang gneiss, Khao Dat Fa granite, and Khao Pret granite. Thickness: not mentioned
Lithology Pattern:
Gneiss
Relationships and Distribution
Lower contact
none
Upper contact
Tarutao Gr (unconformable)
Regional extent
Lower Peninsula: Khanom district, Nakhon Si Thammarat province
GeoJSON
{"type":"Feature","geometry":{"type":"MultiPolygon","coordinates":[[[[99.37,9.2],[99.66,9.37],[99.89,9.32],[100.16,8.78],[100.39,7.93],[100.58,6.98],[100.57,6.39],[100.32,6.3],[99.81,6.7],[99.24,7.45],[98.82,8.18],[99.08,8.51],[99.37,9.2]]]]}}
Fossils
None
Age
Pre-Cambrian (arbitrary here as spanning NeoProterozoic)
Age Span:
Beginning stage:
Tonian
Fraction up in beginning stage:
0.0
Beginning date (Ma):
1,000.00
Ending stage:
Ediacaran
Fraction up in the ending stage:
1.0
Ending date (Ma):
541.00
Depositional setting
Depositional pattern:
Additional Information
Compiler:
Wen Du - modified from Lexicon of Stratigraphic Names of Thailand of 2013.
Hansen B. T. & Wemmer K., 2011, Chapter2 Age and evolution of the basement rocks in Thailand, in: Ridd, M.F., Barber, A.J., and Grow, M.J., editors, The Geology of Thailand, Geol. Soc. of London.
Hansen B. T. & Wemmer K., 2011, Chapter2 Age and evolution of the basement rocks in Thailand, in: Ridd, M.F., Barber, A.J., and Grow, M.J., editors, The Geology of Thailand, Geol. Soc. of London.